CONTENTS

Summary ............................................................................................................................ iv

1.0 Introduction ................................................................................................................1 1.1 Purpose ...............................................................................................................1 1.2 Scope of Work ...................................................................................................3 1.3 Limitations, Exceptions, and Assumptions ........................................................3 1.4 User Reliance .....................................................................................................4

2.0 Site Description ..........................................................................................................4 2.1 Location and Legal Description .........................................................................4 2.2 Site and Vicinity General Characteristics ..........................................................4

2.2.1 Physical Setting .......................................................................................5 2.3 Current and Future Use of the Property .............................................................5 2.4 Structures, Roads, or Other Improvements on the Property ..............................5 2.5 Historical Use Information for the Property and Adjoining Properties .............7

2.5.1 Historical Aerial Photographs .................................................................7 2.5.2 Historical Topographic Maps ..................................................................9

3.0 User Provided Information .......................................................................................11 3.1 Land Title Records/Environmental Liens or Activity and Use Limitations ....11 3.2 Specialized Knowledge ....................................................................................11 3.3 Commonly Known or Reasonably Ascertainable Information ........................11 3.4 Valuation Reduction for Environmental Issues ...............................................11 3.5 Owner, Property Manager, and Occupant Information ...................................11 3.6 Reason for Performing Phase I ........................................................................11

4.0 Records Review ........................................................................................................12 4.1 Standard Environmental Records Sources .......................................................12

4.1.1 Federal National Priorities List .............................................................12 4.1.2 Federal Delisted NPL Site List .............................................................12 4.1.3 Federal Comprehensive Environmental Response, Compensation and

Liability Information System ................................................................13 4.1.4 Federal CERCLIS No Further Remedial Action Planned List (NFRAP)13 4.1.5 Federal Resource Conservation and Recovery Act Corrective Action Site

List ........................................................................................................14 4.1.6 Federal Resource Conservation and Recovery Information System.....14 4.1.7 Federal Institutional Control/Engineering Control Registries ..............14 4.1.8 Federal Emergency Response and Notification System .......................14 4.1.9 Federal Brownfields Sites List ..............................................................15 4.1.10 State Landfill and Solid Waste Disposal Sites ......................................15 4.1.11 State Leaking Underground Storage Tank Sites ...................................15 4.1.12 State Institutional Control/Engineering Control Registries ..................15 4.1.13 State Registered Storage Tank Sites .....................................................15 4.1.14 State Voluntary Cleanup Sites ..............................................................15 4.1.15 Historical Auto Stations ........................................................................15 4.1.16 Historical Dry Cleaners .........................................................................16

4.2 Additional Environmental Record Sources .....................................................16

p:\4900 projects\4912 udfcd denver county\ac 11 first creek at 56th avenue\phase i esa\2013\4912-11_phase_i_esa_report.doc ERO Project #4912 i ERO

Resources Corporation

4.2.1 Colorado Oil and Gas Conservation Commission Records ..................16 4.2.2 Rocky Mountain Arsenal Background ..................................................16

4.3 Previous Environmental Reports .....................................................................17 4.4 Vapor Encroachment Evaluation .....................................................................17

5.0 Site Reconnaissance .................................................................................................17 5.1 Methodology and Limiting Conditions ............................................................17 5.2 General Site Setting .........................................................................................17

5.2.1 Storage Tanks ........................................................................................17 5.2.2 Drums/Containers .................................................................................18 5.2.3 Hazardous Substance and Petroleum Products Materials/Waste Use or

Storage ..................................................................................................18 5.2.4 Transformers/PCBs ...............................................................................18

5.3 Exterior Observations ......................................................................................18 5.3.1 Pits, Ponds, and Lagoons ......................................................................18 5.3.2 Stained Soil or Pavement ......................................................................18 5.3.3 Stressed Vegetation ...............................................................................18 5.3.4 Solid Waste Disposal ............................................................................18 5.3.5 Wastewater Discharge ...........................................................................18 5.3.6 Wells .....................................................................................................19 5.3.7 Process Equipment ................................................................................19 5.3.8 On-site Septic Systems ..........................................................................19

6.0 Interviews .................................................................................................................19 6.1 Interview with Owner ......................................................................................19

7.0 Findings ....................................................................................................................19

8.0 Opinion .....................................................................................................................20 8.1 Data Gap Summary ..........................................................................................20

9.0 Conclusions ..............................................................................................................21

10.0 Deviations .................................................................................................................21

11.0 References ................................................................................................................21

12.0 Environmental Professionals Statement ...................................................................23

TABLES Table 1. Summary of publicly available environmental records. .....................................13

FIGURES Figure 1. Vicinity Map. .......................................................................................................2 Figure 2. Site Plan. ..............................................................................................................6

ERO Project #4912 ii EROResources Corporation

ERO Project #4912 iii EROResources Corporation

APPENDICES Appendix A — Site Photographs Appendix B — Environmental Records Appendix C — Qualifications of Environmental Professionals Appendix D — Phase I ESA Work Scope

Summary SEH, Inc. (SEH) retained ERO Resources Corporation (ERO) to conduct a Phase I

Environmental Site Assessment (ESA) for the First Creek Channel Improvements Project located along First Creek at East 56th Avenue in Denver, Colorado (hereafter called “the property”). ERO performed this ESA according to the “Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process” (American Society for Testing Materials E 1527-05 2005) (ASTM). This ESA consists of a review of historical information and federal, state, and local records; interviews with persons knowledgeable of the property; a site reconnaissance; and preparation of this report.

The property consists of portions of five parcels of land totaling about 21.6 acres. Historically, the property and surrounding area have been agricultural, undeveloped, and used for horse boarding. Federal, state, and local records indicate no sites or incidents on or near the property associated with recognized environmental conditions.

During the site reconnaissance, ERO inspected the property by walking the perimeter and traversing the interior. The property consists of undeveloped and formerly agricultural land along First Creek, north and south of East 56th Avenue. No structures were observed on the property. No recognized environmental conditions were identified during the site reconnaissance.

ERO performed this Phase I ESA in conformance with the scope and limitations of ASTM Practice E 1527. Any exceptions to, or deletions from, this practice are described in the Introduction section of this report. This assessment has revealed no evidence of recognized environmental conditions in connection with the property. For this reason, ERO recommends no further action. In accordance with the ASTM standard, this ESA is valid if completed within 180 days of the property acquisition or intended transaction.

ERO Project #4912 iv EROResources Corporation


FIRST CREEK CHANNEL IMPROVEMENTS PROJECT EAST 56TH AVENUE AT FIRST CREEK

DENVER, COLORADO

AUGUST 6, 2013

1.0 Introduction SEH, Inc. retained ERO Resources Corporation (ERO) to conduct a Phase I Environmental

Site Assessment (Phase I ESA) for the First Creek Channel Improvements Project located along

First Creek at East 56th Avenue in Denver, Colorado (hereafter called “the property”). The area

surrounding the property is shown on Figure 1. This report presents the findings, opinions, and

conclusions of this Phase I ESA.

This Phase I ESA was performed to satisfy the Work Scope and contract between SEH, Inc.

and ERO dated May 16, 2012 (Appendix D). The conclusions in this report are based on limited

observations and investigations described herein at the time this Phase I ESA was conducted;

future events may alter these findings.

1.1 Purpose ERO conducted this Phase I ESA to identify recognized environmental conditions associated

with the property. Recognized environmental conditions may exist when any hazardous

substances or petroleum products are present, or are likely to be present, on a property under

conditions that indicate an existing release, a past release, or a threat of material release of any

hazardous substance or petroleum product into structures on the property; or into the ground,

ground water, or surface water of the property. The term includes hazardous substances or

petroleum products even under conditions in compliance with laws. The term is not intended to

include de minimis conditions that generally do not present a threat to human health or the

environment and that generally would not be the subject of an enforcement action if brought to

the attention of appropriate governmental agencies. Conditions determined to be de minimis are

not recognized environmental conditions.

ERO Project #4912 1 EROResources Corporation

Property Boundary

Prepared for: SEH, Inc.File: 4912 Figure 1 AC11.mxd (WH)August 2, 2013 ±

Figure 1Vicinity MapFirst Creek at 56th Avenue

Portions of this document include intellectual property of ESRI and its licensors and are used herein under license. Copyright © 2013 ESRI and its licensors. All rights reserved.

0 2,0001,000 Feet

COLORADO

Location

Sections 9 and 16, T3S, R66W; 6th PMUTM NAD 83: Zone 13N; 519020mE, 4405412mNLatitude, Longitude: 39.798458°N, 104.777830°WUSGS Montbello, CO QuadrangleCity and County of Denver, Colorado

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PHASE I ENVIRONMENTAL SITE ASSESSMENT FIRST CREEK CHANNEL

IMPROVEMENTS PROJECT, EAST 56TH AVENUE AT FIRST CREEK DENVER, COLORADO


While no ESA can wholly eliminate uncertainty regarding the potential for recognized

environmental conditions in connection with a property, the environmental conditions of the

property have been investigated in accordance with ASTM Standard E1527-05, developed to

define commercial and customary practices for Phase I ESAs. In addition, this Phase I ESA was

performed to permit the user to satisfy one of the requirements to qualify for the innocent

landowner, contiguous property owner, or bona fide prospective purchaser limitations on

Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) liability:

that is, the practice that constitutes “all appropriate inquiry into the previous ownership and uses

of the property consistent with good commercial or customary practice” as defined in 42 U.S.C.

Section 9601(35)(B).

1.2 Scope of Work This Phase I ESA was conducted in accordance with ASTM E1527-05, “Standard Practice

for Environmental Site Assessments: Phase I Environmental Site Assessment Process.”

Deviations from this practice, if any, are listed in Section 10.0. ERO’s Work Scope is included

in Appendix D. This ESA generally consists of four components:

• A review of reasonably ascertainable historical and regulatory database search records to help identify recognized environmental conditions in connection with the property.

• A site reconnaissance to visually and physically observe the property, the adjoining properties, and the surrounding area.

• Interviews with the user of the ESA, the property owner representatives, and local government officials to help identify recognized environmental conditions associated with the property.

• A report and evaluation of the information collected as part of this ESA and a presentation of ERO’s findings, opinions, and conclusions.

1.3 Limitations, Exceptions, and Assumptions This Phase I ESA was performed in a professional manner using the degree of skill and care

exercised for similar projects under similar conditions by reputable and competent environmental

consultants. A lack of evidence of the presence of hazardous substances or petroleum products

during this Phase I ESA does not guarantee the absence of such materials; it merely indicates that

none were identified within the contracted scope of this Phase I ESA. Unforeseen conditions




may significantly affect the ability to make conclusions and recommendations based solely on

the level of effort mutually agreed upon to conduct this Phase I ESA, which may ultimately

affect the level of risk. ERO shall not be held responsible for any conditions or consequences

arising from relevant facts that were concealed, withheld, or not fully disclosed. The opinions

and conclusions in this report are based on publicly available information and limited site

reconnaissance observations described herein at the time this Phase I ESA was conducted.

Future events or changes in publicly available information may alter the findings, opinions, and

conclusions of this report. No other warranty, expressed or implied, is made as to the

professional opinions included in this report.

The following issues are specifically excluded from this ESA—wetlands, migratory birds,

asbestos-containing materials, radon, lead-based paint, lead in drinking water, mold, and

ownership of subsurface mineral rights or leases. Aside from those stated in the Work Scope in

Appendix D and those listed above, no significant assumptions apply to this Phase I ESA.

1.4 User Reliance This report is for the use and benefit of SEH, Inc., the Denver Urban Drainage and Flood

Control District, and the City and County of Denver and is not to be used by others without the

prior written consent of ERO. No other party shall rely on the information contained herein

without the prior written consent of SEH, Inc. or ERO.

2.0 Site Description

2.1 Location and Legal Description The property is in the south ½ of Section 9 and the northeast ¼ of Section 16, Township 3

South, Range 66 West of the 6th Principal Meridian in the City and County of Denver, Colorado.

ERO was not provided with a legal description of the property.

2.2 Site and Vicinity General Characteristics The property consists of portions of five parcels of land totaling approximately 21.6 acres

owned by B&R Properties and Karl Smith. The property is bounded by undeveloped land and a

horse boarding facility on the southwest, Tower Road on the east, agricultural land on the south,




and undeveloped pastureland on the north (Figure 2). East 56th Avenue bisects the property.

Adjoining land is undeveloped to the north and south, undeveloped and residential to the east,

and undeveloped land and Peña Boulevard to the west.

2.2.1 Physical Setting The property is located at an approximate elevation of 5,320 feet above sea level. Surface

geology in the area is characterized by Quaternary-age windblown deposits of medium to fine

grain sand underlain by Cretaceous-age sandstones, claystones, and conglomerates of the Denver

Formation (Trimble and Machette 1979). According to the U.S. Geological Survey (USGS),

depth to the uppermost ground water beneath the property and vicinity is generally greater than

20 feet below ground surface (bgs) (Hillier et al. 1983). According to topographic information

from the USGS 7.5-minute quadrangle map, surface water on the property flows to the northwest

(USGS 1994). Based on the topography and field observations, the expected flow direction of

the uppermost ground water is to the northwest.

2.3 Current and Future Use of the Property The property currently consists of undeveloped land along First Creek, former agricultural

land, and land used for horse boarding. According to SEH, Inc., the property is proposed for

future use as the First Creek floodplain and regional bike trail.

2.4 Structures, Roads, or Other Improvements on the Property No structures are located on the property. Numerous temporary wooden corrals and horse

pens adjoin the property to the southwest. No utilities are currently provided to the property.

East 56th Avenue

First Creek

Tower Road

Peña B oulevard

Manure pilesHorse boarding facility

Former location of ruralresidence and outbuildings

SMITH,KARL D

CITY & COUNTYOF DENVER

CITY & COUNTY OF DENVER

SMITH,KARL D B & R PROPERTIES LLCB & R PROPERTIES LLC

B & R PROPERTIES LLC

SMITH,KARL D

CITY & COUNTYOF DENVER

NEW ANTELOPELLC

Prepared for: SEH, Inc.File: 4912 Figure 2 AC11.mxd (WH)August 6, 2013

Figure 2Site PlanFirst Creek at 56th Avenue

Image Source: Landiscor©, August 2009 ±0 700350feet

Property BoundaryParcels




2.5 Historical Use Information for the Property and Adjoining Properties ERO used the following standard historical sources to evaluate current and past uses of the

property and adjoining properties:

• Aerial photographs from 1937 to 2010 • Historical topographic maps from 1938 to 2010

Other standard historical sources for the site, such as fire insurance maps, street directories,

property tax files, recorded land title records, building department records, or zoning/land use

records were not reasonably ascertainable or, given the rural nature of the property, were not

available or, based on ERO’s professional experience, are unlikely to provide any significant

historical information with regard to the property.

2.5.1 Historical Aerial Photographs Historical aerial photographs from 1937 to 2010 showing the property and surrounding area

were reviewed and are discussed below.

1937 Aerial Photograph; Scale: 1 inch = 250 feet The 1937 aerial photograph shows First Creek flowing across the property. Cultivated

agricultural land is visible to the south-southwest of the property. A rural residence with

associated outbuildings is visible on and adjoining the property to the southwest, on the south

side of East 56th Avenue. The surrounding area appears to be agricultural pastureland.

1956 Aerial Photograph; Scale: 1 inch = 1,650 feet No significant changes on or adjacent to the property are visible in the 1956 aerial

photograph compared to the previous photograph, except for a rural residence is visible across

Tower Road northeast of the property.

1965 Aerial Photograph; Scale: 1 inch = 1,430 feet No significant changes on or adjacent to the property are visible in the 1965 aerial

photograph compared to the previous photograph.

1972 Aerial Photograph; Scale: 1 inch = 1,430 feet Changes to the property and surrounding area in the 1972 aerial photograph compared to the

previous photograph are as follows:




• The banks on First Creek immediately south of East 56th Avenue appear to have been graded.

1979 Aerial Photograph; Scale: 1 inch = 2,000 feet No significant changes to the property are visible in the 1979 aerial photograph compared to

the previous photograph. Changes to the surrounding area in the 1979 aerial photograph

compared to the previous photograph are as follows:

• A mobile home park with an associated wastewater treatment lagoon is visible about ¼ mile west-northwest and downgradient of the property.




• Two additional sewage treatment ponds are visible within the mobile home park.




• Several horse pens and corrals are visible north of East 56th Avenue adjoining the property to the southwest; and

• A horse track is visible adjoining the property to the north.




• The rural residence and outbuildings on and adjoining the property to the southwest are no longer visible;

• The mobile home park is abandoned and Peña Boulevard is shown to be under construction in its place with significant grading and soil stockpiling occurring west of the property; and

• The horse boarding area on the property has increased in size.




2000 Aerial Photograph; Scale: 1 inch = 1,760 feet Changes to the property and surrounding area in the 2000 aerial photograph compared to the


• Road construction and grading along the north and south sides of East 56th Avenue is visible on and adjoining the property.

2005 Aerial Photograph; Scale: 1 inch = 604 feet No significant changes on or adjacent to the property are visible in the 2005 aerial


2008 Aerial Photograph; Google Earth Changes to the property and surrounding area in the 2008 aerial photograph compared to the


• The horse stables adjoining the property have expanded with piles of manure visible on and adjoining the property.

2012 Aerial Photograph; Google Earth No significant changes on or adjacent to the property are visible in the 2012 aerial


2.5.2 Historical Topographic Maps Historical USGS topographic maps from 1938 to 2010 showing the property and surrounding

area were reviewed and are discussed below.

1938, 1941, and 1948 USGS 7.5-Minute Series, Long Branch, CO; Scale: 1:24,000 The USGS topographic maps from 1938, 1941, and 1948 show the property as undeveloped

land with First Creek flowing across the property from southeast to northwest. East 56th Avenue

is shown as an unimproved dirt road bisecting the property and one structure is shown adjoining

the property to the southwest.

1957 USGS 7.5-Minute Series, Sable, CO; Scale: 1:24,000 Changes to the property and surrounding area on the 1957 historical topographic map

compared to the previous maps are as follows:

• Two outbuildings are shown on the property;

• East 56th Avenue is shown as a paved road; and




• The eastern boundary of the Rocky Mountain Arsenal is shown about ¾ mile west of the property.

1965 and 1971 USGS 7.5-Minute Series, Sable, CO; Scale: 1:24,000 Changes to the property and surrounding area on the 1965 and 1971 historical topographic

maps compared to the previous map are as follows:

• Only one outbuilding and one residence are visible on and adjoining the property to the southwest; and

• A water well is visible adjoining the property to the west.

1979 USGS 7.5-Minute Series, Sable, CO; Scale: 1:24,000 No significant changes to the property are shown on the 1979 historical topographic map

compared to the previous maps. Changes to the surrounding area on the 1979 historical

topographic map compared to the previous maps are as follows:

• A mobile home park with an associated wastewater lagoon is shown northwest of the property.

1994 USGS 7.5-Minute Series, Montbello, CO; Scale: 1:24,000 No significant changes to the property are shown on the 1994 historical topographic map

compared to the previous map. Changes to the surrounding area on the 1994 historical

topographic map compared to the previous map are as follows:

• The mobile home park is no longer shown to the northwest of the property;

• Peña Boulevard is shown in the former location of the mobile home park; and

• Three structures are shown adjoining the property to the southwest.

2010 USGS 7.5-Minute Series, Montbello, CO; Scale: 1:24,000 Changes to the property and surrounding area on the 2010 topographic map, with a 2009

aerial photograph background, compared to the previous map are as follows:

• A horse boarding facility with associated piles of manure is visible on and adjoining the portion of the property north of East 56th Avenue;

• No structures are shown on or adjoining the property to the southwest, in the former location of the rural residence;

• Cultivated agricultural fields are shown adjoining the property to the southwest; and

• A horse track is visible adjoining the property to the north.




3.0 User Provided Information Mr. Peter Baertlein with the City and County of Denver, the ultimate user of this ESA,

completed a User Questionnaire regarding his knowledge of the property. Mr. Baertlein did not

indicate how long he has been familiar with the property. The following sections present the

information provided by Mr. Baertlein.

3.1 Land Title Records/Environmental Liens or Activity and Use Limitations The ASTM E-1527-05 practice indicates that it is the responsibility of the user of this Phase I

ESA, the City and County of Denver, to identify any environmental liens and activity use

limitations (AULs), if any, recorded or filed against the property. Mr. Baertlein was unaware of

any environmental liens or AULs associated with the property.

3.2 Specialized Knowledge According to Mr. Baertlein, he is not aware of any uses or incidents on the property that

would indicate recognized environmental conditions on the property.

3.3 Commonly Known or Reasonably Ascertainable Information According to Mr. Baertlein, he is not aware of any uses or incidents in the vicinity of the

property that would indicate recognized environmental conditions on the property.

3.4 Valuation Reduction for Environmental Issues Mr. Baertlein was not able to provide any information regarding the purchase price or

valuation of the property because the property is not being purchased.

3.5 Owner, Property Manager, and Occupant Information According to Mr. Baertlein, the property is owned by B and R Properties LLC and the Karl

D. Smith Trust. Currently there are no occupants on the property.

3.6 Reason for Performing Phase I According to Mr. Baertlein, this Phase I ESA is being conducted as due diligence prior to

construction associated with First Creek channel improvements.




4.0 Records Review

4.1 Standard Environmental Records Sources ERO contracted with a commercial database search company, Environmental Data

Resources, Inc. (EDR), to conduct a search of publicly available database records. Because of

the size of the property, the standard database search distances were extended by ½ mile. All

ASTM search distance sites are measured from the property boundary.

ERO reviewed initial search results for inaccuracies and orphan sites. Orphans are sites that

lack adequate location information to map. Orphan sites that could be located using zip code,

city name, site name, or other information were incorporated into the final database search

results by ERO. Orphan sites that were found to be beyond the designated ASTM search

distances were removed from the database search report by ERO prior to finalization. Sites

identified by the publicly available database record search are discussed in the following sections

and assessed as to their potential to be historical, known, or suspect recognized environmental

conditions associated with the property. A summary is included in Table 1 and copies of records

reviewed are in Appendix B.

The property was not identified in any of the database records reviewed. One mapped site

and no orphan sites were identified in the records reviewed, with the same site often appearing in

multiple databases.

4.1.1 Federal National Priorities List The National Priority List (NPL) consists of properties with the highest priority for cleanup

under the Superfund Program pursuant to the Environmental Protection Agency’s (EPA) Hazard

Ranking System. One NPL site is located within 1 mile of the property.

• The eastern boundary of the Rocky Mountain Arsenal (RMA) is located about ½ mile west of the property. The RMA is discussed in Section 4.2.2 below.

4.1.2 Federal Delisted NPL Site List The EPA tracks sites that have been removed from the NPL because no further response is

appropriate.

• No Delisted NPL sites are located within ½ mile of the property.




Table 1. Summary of publicly available environmental records.

Record Sources Search Distance (miles)1

# of Sites

Federal NPL site list 1.0 1 Federal Delisted NPL site list 0.5 0 Federal CERCLIS list 0.5 1 Federal CERCLIS NFRAP site list 0.5 0 Federal RCRA CORRACTS site list 1.0 1 Federal RCRA TSD facilities list 0.5 1 Federal RCRA generators list property and adjoining 0 Federal institutional control/engineering control registries property only 0 Federal ERNS list property only 0 Federal Brownfields sites 0.5 0 State landfill and/or solid waste disposal site list 0.5 0 State leaking storage tank list 0.5 0 State registered storage tank list property and adjoining 0 State institutional control/engineering control registries property only 0 State voluntary cleanup sites 0.5 0 Historical auto stations 0.25 0 Historical dry cleaners 0.25 0

1ASTM E1527-05 standard search distances.

4.1.3 Federal Comprehensive Environmental Response, Compensation and Liability Information System

The Federal Comprehensive Environmental Response, Compensation and Liability

Information System (CERCLIS) includes sites investigated for potential hazardous substance

contamination and for inclusion on the NPL.

• The RMA, about ½ mile west of the property, is the only CERCLIS-listed property located within ½ mile of the property.

4.1.4 Federal CERCLIS No Further Remedial Action Planned List (NFRAP) CERCLIS-NFRAP sites are sites where, following an initial investigation, no contamination

was found, contamination was removed quickly without the need for the site to be placed on the

NPL, or the contamination was not serious enough to require Federal Superfund action or NPL

consideration. According to this list:




• No CERCLIS-NFRAP sites are located within ½ mile of the property.

4.1.5 Federal Resource Conservation and Recovery Act Corrective Action Site List The Federal Resource Conservation and Recovery Act (RCRA) Corrective Action Site

(CORRACTS) List provides a list of sites that have had or are undergoing corrective action or

cleanup pursuant to the RCRA.

• The RMA, about ½ mile west of the property, is the only corrective action site located within 1 mile of the property.

4.1.6 Federal Resource Conservation and Recovery Information System The Resource Conservation and Recovery Information System (RCRIS) includes two lists: 1)

facilities on which treatment, storage, and/or disposal (TSD) of hazardous wastes occur; and 2)

persons or entities that generate hazardous waste as defined and regulated by the RCRA.

• According to these lists, the RMA is a TSD facility located within ½ mile of the property; and

• No hazardous waste generators are located on or adjoining the property.

4.1.7 Federal Institutional Control/Engineering Control Registries The EPA lists sites with institutional and/or engineering controls in place that prevent

exposure to contamination remaining on a site. Institutional controls include administrative

measures, such as ground water use restrictions, construction restrictions, property use

restrictions, and post-remediation care requirements. Engineering controls include various forms

of caps, building foundations, liners, and treatment methods. According to the registry:

• The property is not listed as having institutional or engineering controls placed on it.

4.1.8 Federal Emergency Response and Notification System The Federal Emergency Response and Notification System (ERNS) List reports hazardous

substance releases and spills in quantities greater than the reportable quantity as defined and

regulated by CERCLA.

• No releases on the property have been reported to the ERNS.




4.1.9 Federal Brownfields Sites List The EPA maintains a list of Brownfields sites where federal funding and/or technical

assistance has been provided for environmental assessments and cleanup activities at privately

owned properties.

• No Brownfields sites are located within ½ mile of the property.

4.1.10 State Landfill and Solid Waste Disposal Sites The Colorado Department of Public Health and Environment (CDPHE) lists no permitted

landfills or other solid waste disposal sites within ½ mile of the property.

4.1.11 State Leaking Underground Storage Tank Sites The Colorado Department of Labor and Employment, Division of Oil and Public Safety

(CDLE/OPS) lists no state leaking underground storage tank (LUST) sites on the property.

• No LUST sites are located within ½ mile of the property.

4.1.12 State Institutional Control/Engineering Control Registries The CDPHE maintains a list of all sites that have been issued environmental covenants that

dictate institutional or engineering controls on real property to mitigate potential exposure to

contaminants.

• No state-recorded environmental covenants or institutional controls are listed for the property.

4.1.13 State Registered Storage Tank Sites CDLE/OPS lists no registered storage tank sites on or adjoining the property.

4.1.14 State Voluntary Cleanup Sites CDPHE lists no Voluntary Cleanup List sites within ½ mile of the property.

4.1.15 Historical Auto Stations The EDR proprietary database of historical auto station listings identified no historical auto

stations within ¼ mile of the property.




4.1.16 Historical Dry Cleaners The EDR proprietary database of historical dry cleaner listings identified no historical dry

cleaners within ¼ mile of the property.

4.2 Additional Environmental Record Sources ERO contacted the City and County of Denver Health Department on July 23, 2013 for

information that may indicate known or suspect recognized environmental conditions on or near

the property. No response had been received from the City and County of Denver Health

Department by the time of completion of this report. If the findings from the records search

change the conclusions and opinions of this report, they will be forwarded in an addendum to

this report. ERO did not contact the Denver Fire Department because they require a specific

address to search their records.

4.2.1 Colorado Oil and Gas Conservation Commission Records ERO reviewed records maintained by the Colorado Oil and Gas Conservation Commission

(COGCC), the agency that regulates oil and natural gas exploration and production in Colorado.

According to the COGCC, no oil and gas wells are located on or near the property (COGCC

2013).

4.2.2 Rocky Mountain Arsenal Background The RMA Superfund Site occupies an approximate 27-square-mile area in southern Adams

County, Colorado. The RMA was established in 1942 as a chemical weapons manufacturing

site. Most of the RMA was placed on the NPL as a Superfund site in 1987, with additional areas

added in 1989. According to the EPA, the RMA’s current focus is environmental cleanup, with

the transfer of RMA land to the U.S. Department of the Interior upon completion of the cleanup

for use as a national wildlife refuge (RMA-Remediation Venture Office 2005). The subject

property is located about ½ mile east and hydrologically upradient of the eastern boundary of the

RMA. According to the RMA reports, shallow ground water on the RMA facility flows to the

north and northwest away from the property.




4.3 Previous Environmental Reports ERO was not provided any previous environmental reports for the property; therefore, no

previous environmental reports were reviewed for the property.

4.4 Vapor Encroachment Evaluation ERO evaluated the sites identified in Section 4.1 with respect to search distance criteria to

evaluate potential vapor encroachment in accordance with ASTM E 2600-10, the “Standard

Guide for Vapor Encroachment Screening on Property Involved in Real Estate Transactions”

(ASTM 2010). No sites identified in the EDR search of publicly available databases are located

within the applicable search distance criteria denoting the Area of Concern for vapor

encroachment.

5.0 Site Reconnaissance

5.1 Methodology and Limiting Conditions Courtney Sockwell, an Environmental Professional with ERO, conducted the site

reconnaissance on July 24, 2013. He investigated the entire property by walking the perimeter

and traversing the interior. Representative photographs taken during the site reconnaissance are

presented in Appendix A.

5.2 General Site Setting The property was generally undeveloped and used for horse boarding activities. The

property and surrounding area were vegetated with grasses and weeds. First Creek flows across

the property from southeast to northwest. The topography in the vicinity of the property is

generally flat with a gentle slope downstream to the northwest.

No structures were on the property at the time of the site reconnaissance. The adjoining

parcels were developed for agricultural use, used for horse boarding, or undeveloped.

5.2.1 Storage Tanks No vent pipes, fill ports, tank pits, or other indications of underground storage tanks were

observed on the property. No aboveground petroleum storage tanks were observed on the

property.




5.2.2 Drums/Containers Aside from a few old rusty drums, paint cans, and a rusted metal stock tank observed on the

south side of East 56th Avenue, no drums or containers were observed on the property.

5.2.3 Hazardous Substance and Petroleum Products Materials/Waste Use or Storage No indications of the use or storage of petroleum products or hazardous materials were

observed on the property.

5.2.4 Transformers/PCBs No electrical transformers were observed on the property.

5.3 Exterior Observations

5.3.1 Pits, Ponds, and Lagoons ERO did not identify or observe any pits, ponds, or lagoons on or adjacent to the property.

5.3.2 Stained Soil or Pavement No areas of stained soils or pavement were observed on the property. Manure was observed

to be spread on the ground on the portion of the property north of East 56th Avenue and

southwest of First Creek.

5.3.3 Stressed Vegetation No areas of stressed vegetation were observed on the property.

5.3.4 Solid Waste Disposal No indication of solid waste disposal or filled areas was observed on the property. Grading

was observed on both sides of First Creek, north of East 56th Avenue, associated with

underground utilities.

5.3.5 Wastewater Discharge ERO observed no sumps, floor drains, trenches, streams, or underground injection systems

into which wastewater and liquids on and adjacent to the property discharge.




5.3.6 Wells ERO did not observe any monitoring, domestic, irrigation, injection, abandoned, or other

wells on the property.

5.3.7 Process Equipment No manufacturing, remediation, or other chemical process equipment was observed on the

property.

5.3.8 On-site Septic Systems ERO did not observe any indications of on-site septic systems or cesspools on the property.

6.0 Interviews

6.1 Interview with Owner Charlie Foster, manager of the Karl D. Smith Trust, one of the current property owners, was

interviewed by telephone on July 23, 2013. Mr. Foster indicated that Karl Smith purchased the

parcels included in the property in the 1970s and that the property has only ever been agricultural

and used for boarding and breeding horses. He was unaware of any environment problems with

the property (Foster, pers. comm. 2013).

Greg Berger, with B and R Properties, LLC (B and R), one of the current property owners,

was interviewed by telephone on August 2, 2013. Mr. Berger indicated that B and R purchased

the parcels included in the property in 1972 and that the property has only ever been agricultural.

He was unaware of any environment problems with the property (Berger, pers. comm. 2013).

7.0 Findings The property consists of two parcels of land totaling about 21.6 acres. Historically, the

property and surrounding area have been agricultural, undeveloped, and used for horse boarding.

Federal, state, and local records indicate no known or suspect recognized environmental

conditions associated with the property. The eastern boundary of the RMA, which is listed as a

NPL, CERCLIS, CORRACTS, and RCRA TSD site is located about ½ mile west and

downgradient of the property. No additional sites associated with known or suspect recognized




environmental conditions were identified in the surrounding area. No known or suspect

recognized environmental conditions were identified as the result of the site inspection or

interviews.

8.0 Opinion Because the eastern boundary of the RMA is about ½ mile west and downgradient of the

property, it is ERO’s professional opinion that the RMA does not constitute a recognized

environmental condition associated with the property. It is ERO’s professional opinion that there

are no recognized environmental conditions associated with the property. Based on the

distances of sites with respect to the property and vapor encroachment analysis, it is ERO’s

professional opinion that a vapor encroachment condition does not exist on the property.

8.1 Data Gap Summary Summary of Historical Data. ERO reviewed historical aerial photographs from 1937, 1956,

1965, 1972, 1979, 1985, 1991, 1995, 2000, 2005, 2008, and 2012. Historical topographic maps

from 1938, 1941, 1948, 1957, 1965, 1971, 1979, 1994, and 2010 showing the property and

surrounding area were reviewed. Consistent land use was identified across all sources and no

unknown structures or land uses were identified on the property. ERO was able to identify land

use back to at least 1940 and encountered data gaps of up to 19 years between aerial

photographic sources and 15 years between topographic map sources. Because consistent land

use was noted across all sources, it is ERO’s professional opinion that there are no significant

historical data gaps with respect to this ESA.

Significant Data Gaps. ERO was able to access all areas of the property and did not

encounter any restrictions during the site reconnaissance. ERO was able to interview the ESA

user and the property owner representatives. The Denver Fire Department was not contacted and

no response had been received from the City and County of Denver Health Department. Based

on the consistent land use on the property and information gathered from the property owner

representatives, it is ERO’s professional opinion that the absence of interviews with the City and

County of Denver Health Department and the Denver Fire Department do not constitute data




gaps that would indicate a recognized environmental condition associated with the property. It is

ERO’s professional opinion that there are no significant data gaps with respect to this ESA.

9.0 Conclusions ERO performed this Phase I ESA in conformance with the scope and limitations of ASTM

Practice E 1527 of the First Creek Channel Improvements Property located at First Creek at East

56th Avenue in Denver, Colorado. Any exceptions to, or deletions from, this practice are

described in the Introduction section of this report. This assessment has revealed no evidence of

recognized environmental conditions in connection with the property. For this reason, ERO

recommends no further action. In accordance with the ASTM standard, this ESA is presumed to

be valid if completed within 180 days of the property acquisition or intended transaction.

10.0 Deviations This Phase I ESA was conducted with no known deviations from the ASTM Standard

Practice for Environmental Site Assessments (ASTM 2005).

11.0 References American Society for Testing Materials (ASTM). 2005. Annual Book of ASTM Standards.

“Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process.” Philadelphia: ASTM E 1527-05.

American Society for Testing Materials (ASTM). 2010. “Standard Guide for Vapor Encroachment Screening on Property Involved in Real Estate Transactions.” Philadelphia: ASTM E 2600-10.

Baertlein, Peter. 2013. Phase I ESA User with the City and County of Denver. User Questionnaire completed on July 25.

Berger, Greg. 2013. Property owner representative with B and R Properties LLC. Personal communication with Courtney Sockwell, Environmental Professional with ERO Resources Corporation. August 2.

Colorado Aerial Photo Service. Aerial Photography. Denver, CO. Photos taken on: July 20, 1956; April 2, 1965; May 15, 1972; May 11, 1979; September 5, 1985; October 9, 1991; July 7, 1995; May 4, 2000; and June 7, 2005.

Colorado Oil and Gas Conservation Commission (COGCC). 2013. Search of well records for wells on or near the property. Available at: http://cogcc.state.co.us/. Last accessed: August 2.

http://cogcc.state.co.us/




Environmental Data Resources (EDR). 2013. EDR Radius Map with GeoCheck, First Creek Improvement Project, First Creek at E. 56th Avenue, Denver, CO. Inquiry #3674217.1s. July 23.

Environmental Data Resources (EDR). 2013. EDR Certified Sanborn Map Report, First Creek Improvement Project, First Creek at E. 56th Avenue, Denver, CO. Inquiry #3674217.2. July 23.

Environmental Data Resources (EDR). 2011. EDR Aerial Photo Decade Package, First Creek Improvement Project, First Creek at E. 56th Avenue, Denver, CO. Photograph from July 16, 1937. Inquiry #3164244.5. September 12.

Foster, Charlie. 2013. Property owner representative with Karl D. Smith Trust. Personal communication with Courtney Sockwell, Environmental Professional with ERO Resources Corporation. July 23.

Google Earth. Historical Aerial Photography. Photograph dates: March 30, 2008 and October 7, 2012.

Hillier, Donald E., Paul A. Schneider, Jr., and E. Carter Hutchinson. 1983. Depth to the Water Table in the Greater Denver Area, Front Range Urban Corridor, Colorado. Denver: U.S. Geological Survey.

Rocky Mountain Arsenal (RMA) Remediation Venture Office. 2005. Rocky Mountain Arsenal Record of Decision for the On-Post Operable Unit, Remediation Design and Implementation Schedule. November.

Trimble, Donald E. and Michael N. Machette. 1979. Geological Map of Greater Denver Area, Front Range Urban Corridor, Colorado. Denver: U.S. Geological Survey Map I-856-H.

U.S. Geological Survey (USGS). Long Branch Quadrangle, 1938, 1941, and 1948. Denver, CO.

U.S. Geological Survey (USGS). Sable Quadrangle, 1957, 1965, 1971, and 1979. Denver, CO.

U.S. Geological Survey (USGS). Montebello Quadrangle, 1994 and 2010. Denver, CO.




12.0 Environmental Professionals Statement “We declare that, to the best of our professional knowledge and belief, we meet the definition of Environmental Professional as defined in 40 CFR 312.10. We have the specific qualifications based on education, training, and experience to assess a property of the nature, history, and setting of the subject property. We have developed and performed the all appropriate inquiries in conformance with the standards and practices set forth in 40 CFR Part 312.”

Courtney Sockwell Environmental Professional

Craig Sovka Environmental Professional

APPENDIX A —

SITE PHOTOGRAPHS

ERO Project #4912 EROResources Corporation


FIRST CREEK CHANNEL

IMPROVEMENTS PROJECT, EAST 56TH AVENUE AT FIRST CREEK

DENVER, COLORADO

JULY 24, 2013

Photo 1 - The old rusty drums and stock tank on the property.

Photo 2 - The old rusty paint cans observed on the property.


FIRST CREEK CHANNEL


DENVER, COLORADO

JULY 24, 2013

Photo 3 - The horse boarding facility on and adjoining the property.

Photo 4 - A typical view of the northern portion of the property.


FIRST CREEK CHANNEL


DENVER, COLORADO

JULY 24, 2013

Photo 5 - First Creek immediately north of East 56th Avenue.

Photo 6 - First Creek on the southern end of the property.

APPENDIX B —

ENVIRONMENTAL RECORDS


FORM-NULL-PTM

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440 Wheelers Farms RoadMilford, CT 06461Toll Free: 800.352.0050www.edrnet.com

First Creek Improvement ProjectFirst Creek At East 56th AvenueDenver, CO 80249

Inquiry Number: 3674217.1sJuly 23, 2013

SECTION PAGE

Executive Summary ES1

Overview Map 2

Detail Map 3

Map Findings Summary 4

Map Findings 7

Orphan Summary 158

Government Records Searched/Data Currency Tracking GR-1

GEOCHECK ADDENDUM

GeoCheck - Not Requested

TC3674217.1s Page 1

Thank you for your business.Please contact EDR at 1-800-352-0050

with any questions or comments.

Disclaimer - Copyright and Trademark Notice

The EDR FieldCheck System enables EDR’s customers to make certain online modifications to the maps and text contained in®EDR Radius Map Reports. As a result, the maps and text contained in this Report may have been so modified. EDR has not takenany action to verify any such modifications, and this report and the findings set forth herein must be read in light of this fact. The EDRFieldCheck System accesses user-modified records from previously submitted reports. Any user-modified record from a previous reportthat is plotted outside the search radius of this report may not be included in this report.

This Report contains certain information obtained from a variety of public and other sources reasonably available to Environmental DataResources, Inc. It cannot be concluded from this Report that coverage information for the target and surrounding properties does not exist fromother sources. NO WARRANTY EXPRESSED OR IMPLIED, IS MADE WHATSOEVER IN CONNECTION WITH THIS REPORT. ENVIRONMENTALDATA RESOURCES, INC. SPECIFICALLY DISCLAIMS THE MAKING OF ANY SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION,MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE. ALL RISK IS ASSUMED BY THE USER. IN NO EVENT SHALLENVIRONMENTAL DATA RESOURCES, INC. BE LIABLE TO ANYONE, WHETHER ARISING OUT OF ERRORS OR OMISSIONS, NEGLIGENCE,ACCIDENT OR ANY OTHER CAUSE, FOR ANY LOSS OF DAMAGE, INCLUDING, WITHOUT LIMITATION, SPECIAL, INCIDENTAL,CONSEQUENTIAL, OR EXEMPLARY DAMAGES. ANY LIABILITY ON THE PART OF ENVIRONMENTAL DATA RESOURCES, INC. IS STRICTLYLIMITED TO A REFUND OF THE AMOUNT PAID FOR THIS REPORT. Purchaser accepts this Report "AS IS". Any analyses, estimates, ratings,environmental risk levels or risk codes provided in this Report are provided for illustrative purposes only, and are not intended to provide, norshould they be interpreted as providing any facts regarding, or prediction or forecast of, any environmental risk for any property. Only a Phase IEnvironmental Site Assessment performed by an environmental professional can provide information regarding the environmental risk for anyproperty. Additionally, the information provided in this Report is not to be construed as legal advice.

Copyright 2013 by Environmental Data Resources, Inc. All rights reserved. Reproduction in any media or format, in wholeor in part, of any report or map of Environmental Data Resources, Inc., or its affiliates, is prohibited without prior written permission.

EDR and its logos (including Sanborn and Sanborn Map) are trademarks of Environmental Data Resources, Inc. or its affiliates. All othertrademarks used herein are the property of their respective owners.

TABLE OF CONTENTS

EXECUTIVE SUMMARY

TC3674217.1s EXECUTIVE SUMMARY 1

A search of the environmental records was conducted by Environmental Data Resources, Inc. (EDR). ERORESOURCES used the EDR FieldCheck System to review and/or revise the results of this search, based onindependent data verification by ERO RESOURCES. The report was designed to assist parties seeking tomeet the search requirements of EPA’s Standards and Practices for All Appropriate Inquiries (40 CFRPart 312), the ASTM Standard Practice for Environmental Site Assessments (E 1527-05) or customrequirements developed for the evaluation of environmental risk associated with a parcel of realestate.

TARGET PROPERTY INFORMATION

ADDRESS

FIRST CREEK AT EAST 56TH AVENUEDENVER, CO 80249

COORDINATES

39.7982000 - 39˚ 47’ 53.52’’Latitude (North): 104.7777000 - 104˚ 46’ 39.72’’Longitude (West): Zone 13Universal Tranverse Mercator: 519031.7UTM X (Meters): 4405174.0UTM Y (Meters): 5324 ft. above sea levelElevation:

USGS TOPOGRAPHIC MAP ASSOCIATED WITH TARGET PROPERTY

39104-G7 MONTBELLO, COTarget Property Map:1994Most Recent Revision:

AERIAL PHOTOGRAPHY IN THIS REPORT

2011Photo Year:USDASource:

TARGET PROPERTY SEARCH RESULTS

The target property was not listed in any of the databases searched by EDR.

DATABASES WITH NO MAPPED SITES

No sites were identified in following databases.

STANDARD ENVIRONMENTAL RECORDS

Federal NPL site list

Proposed NPL Proposed National Priority List Sites

EXECUTIVE SUMMARY


NPL LIENS Federal Superfund Liens

Federal Delisted NPL site list

Delisted NPL National Priority List Deletions

Federal CERCLIS list

FEDERAL FACILITY Federal Facility Site Information listing

Federal CERCLIS NFRAP site List

CERC-NFRAP CERCLIS No Further Remedial Action Planned

Federal RCRA generators list

RCRA-SQG RCRA - Small Quantity GeneratorsRCRA-CESQG RCRA - Conditionally Exempt Small Quantity Generator

Federal institutional controls / engineering controls registries

LUCIS Land Use Control Information System

Federal ERNS list

ERNS Emergency Response Notification System

State- and tribal - equivalent CERCLIS

CO SHWS This state does not maintain a SHWS list. See the Federal CERCLIS list and Federal NPL list.

State and tribal landfill and/or solid waste disposal site lists

CO SWF/LF Solid Waste Sites & Facilities

State and tribal leaking storage tank lists

CO LUST Leaking Underground Storage Tank ListCO LUST TRUST RAP Site ListingCO LAST Leaking Aboveground Storage Tank ListingINDIAN LUST Leaking Underground Storage Tanks on Indian Land

State and tribal registered storage tank lists

CO UST Underground Storage Tank DatabaseCO AST Aboveground Tank ListINDIAN UST Underground Storage Tanks on Indian LandFEMA UST Underground Storage Tank Listing

State and tribal institutional control / engineering control registries

CO AUL Environmental Covenants and Environmental Use Restrictions List

State and tribal voluntary cleanup sites

CO VCP Voluntary Cleanup & Redevelopment Act Application Tracking Report

EXECUTIVE SUMMARY


INDIAN VCP Voluntary Cleanup Priority Listing

ADDITIONAL ENVIRONMENTAL RECORDS

Local Brownfield lists

US BROWNFIELDS A Listing of Brownfields Sites

Local Lists of Landfill / Solid Waste Disposal Sites

ODI Open Dump InventoryDEBRIS REGION 9 Torres Martinez Reservation Illegal Dump Site LocationsCO SWRCY Registered Recyclers ListingCO HIST LF Historical Landfill ListINDIAN ODI Report on the Status of Open Dumps on Indian Lands

Local Lists of Hazardous waste / Contaminated Sites

US CDL Clandestine Drug LabsCO CDL Meth Lab LocationsUS HIST CDL National Clandestine Laboratory Register

Local Land Records

LIENS 2 CERCLA Lien Information

Records of Emergency Release Reports

HMIRS Hazardous Materials Information Reporting SystemCO ERNS Spills DatabaseCO SPILLS 90 SPILLS 90 data from FirstSearch

Other Ascertainable Records

RCRA NonGen / NLR RCRA - Non GeneratorsDOT OPS Incident and Accident DataFUDS Formerly Used Defense SitesUMTRA Uranium Mill Tailings SitesUS MINES Mines Master Index FileTRIS Toxic Chemical Release Inventory SystemTSCA Toxic Substances Control ActFTTS FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act)HIST FTTS FIFRA/TSCA Tracking System Administrative Case ListingSSTS Section 7 Tracking SystemsICIS Integrated Compliance Information SystemPADS PCB Activity Database SystemMLTS Material Licensing Tracking SystemRADINFO Radiation Information DatabaseFINDS Facility Index System/Facility Registry SystemRMP Risk Management PlansCO METHANE SITE Methane Site Investigations - Jefferson County 1980CO Methane Investigation Methane Gas & Swamp FindingsCO DRYCLEANERS Drycleaner Facilities

EXECUTIVE SUMMARY


CO NPDES Permitted Facility ListingCO AIRS Permitted Facility & Emissions ListingCO UMTRA Uranium Mill Tailings SitesCO ASBESTOS Asbestos Abatement & Demolition ProjectsINDIAN RESERV Indian ReservationsSCRD DRYCLEANERS State Coalition for Remediation of Drycleaners ListingCO Financial Assurance Financial Assurance Information ListingPRP Potentially Responsible PartiesLEAD SMELTERS Lead Smelter SitesEPA WATCH LIST EPA WATCH LISTUS FIN ASSUR Financial Assurance InformationPCB TRANSFORMER PCB Transformer Registration DatabaseCOAL ASH DOE Steam-Electric Plant Operation DataCOAL ASH EPA Coal Combustion Residues Surface Impoundments List

EDR HIGH RISK HISTORICAL RECORDS

EDR Exclusive Records

EDR MGP EDR Proprietary Manufactured Gas PlantsEDR US Hist Auto Stat EDR Exclusive Historic Gas StationsEDR US Hist Cleaners EDR Exclusive Historic Dry Cleaners

SURROUNDING SITES: SEARCH RESULTS

Surrounding sites were identified in the following databases.

Elevations have been determined from the USGS Digital Elevation Model and should be evaluated ona relative (not an absolute) basis. Relative elevation information between sites of close proximityshould be field verified. Sites with an elevation equal to or higher than the target property have beendifferentiated below from sites with an elevation lower than the target property.Page numbers and map identification numbers refer to the EDR Radius Map report where detaileddata on individual sites can be reviewed.

Sites listed in bold italics are in multiple databases.

Unmappable (orphan) sites are not considered in the foregoing analysis.



NPL: Also known as Superfund, the National Priority List database is a subset of CERCLIS andidentifies over 1,200 sites for priority cleanup under the Superfund program. The source of this database isthe U.S. EPA.

An online review and analysis by ERO RESOURCES of the NPL list, as provided by EDR, and dated 04/26/2013 has revealed that there is 1 NPL site within approximately 1 mile of the target property.

PageMap IDDirection / Distance Address Equal/Higher Elevation ____________________ ________ ___________________ _____ _____

ROCKY MOUNTAIN ARSENAL (USARMY IMMED N STAPLETON INTL W 1/2 - 1 (0.520 mi.) 0 7

EXECUTIVE SUMMARY


Federal RCRA CORRACTS facilities list

CORRACTS: CORRACTS is a list of handlers with RCRA Corrective Action Activity. This report showswhich nationally-defined corrective action core events have occurred for every handler that has had correctiveaction activity.

An online review and analysis by ERO RESOURCES of the CORRACTS list, as provided by EDR, and dated 02/12/2013 has revealed that there is 1 CORRACTS site within approximately 1 mile of the target property.





DOD: Consists of federally owned or administered lands, administered by the Department ofDefense, that have any area equal to or greater than 640 acres of the United States, Puerto Rico, and the U.S.Virgin Islands.

An online review and analysis by ERO RESOURCES of the DOD list, as provided by EDR, and dated 12/31/2005 has revealed that there is 1 DOD site within approximately 1 mile of the target property.


ROCKY MOUNTAIN ARSENAL NATIONA W 1/2 - 1 (0.554 mi.) 0 7

CONSENT: Major Legal settlements that establish responsibility and standards for cleanup at NPL(superfund) sites. Released periodically by U.S. District Courts after settlement by parties to litigationmatters.

An online review and analysis by ERO RESOURCES of the CONSENT list, as provided by EDR, and dated 12/31/2011 has revealed that there is 1 CONSENT site within approximately 1 mile of the target property.



ROD: Record of Decision. ROD documents mandate a permanent remedy at an NPL (Superfund) sitecontaining technical and health information to aid the cleanup.

An online review and analysis by ERO RESOURCES of the ROD list, as provided by EDR, and dated 12/18/2012 has revealed that there is 1 ROD site within approximately 1 mile of the target property.



EXECUTIVE SUMMARY


CO MINES: This dataset represents permitted mines in the State of Colorado

An online review and analysis by ERO RESOURCES of the CO MINES list, as provided by EDR, and dated 09/19/2011 has revealed that there is 1 CO MINES site within approximately 0.25 miles of the target property.


TOWER 56/64 BORROW NNE 1/8 - 1/4 (0.191 mi.) 1 157

EXECUTIVE SUMMARY


There were no unmapped sites in this report.

EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.

54

5 3 20

5

4 0 0

54

00

5 4 0 0

5 3 20

53 2

0

5 3 2 0

5 3 2 0

53

60

5 3 6 0

5 3 60

5 3 6 0

5 3 6 0

5 3 6 05 3 6 0

5 4 0 0

EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.

5 3 2 0

5360

5360

MAP FINDINGS SUMMARY

SearchTargetDistance Total

Database Property(Miles) < 1/8 1/8 - 1/4 1/4 - 1/2 1/2 - 1 > 1 Plotted



1 NR 1 0 0 0 1.000NPL 0 NR 0 0 0 0 1.000Proposed NPL 0 NR NR NR NR NR TPNPL LIENS


0 NR 0 0 0 0 1.000Delisted NPL


0 NR NR 0 0 0 0.500CERCLIS 0 NR NR 0 0 0 0.500FEDERAL FACILITY


0 NR NR 0 0 0 0.500CERC-NFRAP


1 NR 1 0 0 0 1.000CORRACTS

Federal RCRA non-CORRACTS TSD facilities list

0 NR NR 0 0 0 0.500RCRA-TSDF


0 NR NR NR 0 0 0.250RCRA-LQG 0 NR NR NR 0 0 0.250RCRA-SQG 0 NR NR NR 0 0 0.250RCRA-CESQG

Federal institutional controls /engineering controls registries

0 NR NR 0 0 0 0.500US ENG CONTROLS 0 NR NR 0 0 0 0.500US INST CONTROL 0 NR NR 0 0 0 0.500LUCIS

Federal ERNS list

0 NR NR NR NR NR TPERNS


N/A N/A N/A N/A N/A N/A N/ACO SHWS

State and tribal landfill and/orsolid waste disposal site lists

0 NR NR 0 0 0 0.500CO SWF/LF


0 NR NR 0 0 0 0.500CO LUST 0 NR NR 0 0 0 0.500CO LUST TRUST 0 NR NR 0 0 0 0.500CO LAST 0 NR NR 0 0 0 0.500INDIAN LUST

TC3674217.1s Page 4





0 NR NR NR 0 0 0.250CO UST 0 NR NR NR 0 0 0.250CO AST 0 NR NR NR 0 0 0.250INDIAN UST 0 NR NR NR 0 0 0.250FEMA UST

State and tribal institutionalcontrol / engineering control registries

0 NR NR 0 0 0 0.500CO AUL


0 NR NR 0 0 0 0.500CO VCP 0 NR NR 0 0 0 0.500INDIAN VCP



0 NR NR 0 0 0 0.500US BROWNFIELDS

Local Lists of Landfill / SolidWaste Disposal Sites

0 NR NR 0 0 0 0.500ODI 0 NR NR 0 0 0 0.500DEBRIS REGION 9 0 NR NR 0 0 0 0.500CO SWRCY 0 NR NR 0 0 0 0.500CO HIST LF 0 NR NR 0 0 0 0.500INDIAN ODI

Local Lists of Hazardous waste /Contaminated Sites

0 NR NR NR NR NR TPUS CDL 0 NR NR NR NR NR TPCO CDL 0 NR NR NR NR NR TPUS HIST CDL

Local Land Records

0 NR NR NR NR NR TPLIENS 2


0 NR NR NR NR NR TPHMIRS 0 NR NR NR NR NR TPCO ERNS 0 NR NR NR NR NR TPCO SPILLS 90


0 NR NR NR 0 0 0.250RCRA NonGen / NLR 0 NR NR NR NR NR TPDOT OPS 1 NR 1 0 0 0 1.000DOD 0 NR 0 0 0 0 1.000FUDS 1 NR 1 0 0 0 1.000CONSENT 1 NR 1 0 0 0 1.000ROD 0 NR NR 0 0 0 0.500UMTRA

TC3674217.1s Page 5




0 NR NR NR 0 0 0.250US MINES 0 NR NR NR NR NR TPTRIS 0 NR NR NR NR NR TPTSCA 0 NR NR NR NR NR TPFTTS 0 NR NR NR NR NR TPHIST FTTS 0 NR NR NR NR NR TPSSTS 0 NR NR NR NR NR TPICIS 0 NR NR NR NR NR TPPADS 0 NR NR NR NR NR TPMLTS 0 NR NR NR NR NR TPRADINFO 0 NR NR NR NR NR TPFINDS 0 NR NR NR NR NR TPRAATS 0 NR NR NR NR NR TPRMP 0 NR NR NR NR NR TPCO METHANE SITE 0 NR NR NR NR NR TPCO Methane Investigation 0 NR NR NR 0 0 0.250NY MANIFEST 0 NR NR NR 0 0 0.250CO DRYCLEANERS 0 NR NR NR NR NR TPCA HAZNET 0 NR NR NR NR NR TPCO NPDES 0 NR NR NR NR NR TPCO AIRS 0 NR NR 0 0 0 0.500CO UMTRA 0 NR NR NR NR NR TPCO ASBESTOS 0 NR 0 0 0 0 1.000INDIAN RESERV 0 NR NR 0 0 0 0.500SCRD DRYCLEANERS 0 NR NR NR NR NR TPCO Financial Assurance 1 NR NR NR 1 0 0.250CO MINES 0 NR NR NR NR NR TPUS AIRS 0 NR NR NR NR NR TPPRP 0 NR NR NR 0 0 0.2502020 COR ACTION 0 NR NR NR NR NR TPLEAD SMELTERS 0 NR NR NR NR NR TPEPA WATCH LIST 0 NR NR NR NR NR TPUS FIN ASSUR 0 NR NR NR NR NR TPPCB TRANSFORMER 0 NR NR NR NR NR TPCOAL ASH DOE 0 NR NR 0 0 0 0.500COAL ASH EPA



0 NR 0 0 0 0 1.000EDR MGP 0 NR NR NR 0 0 0.250EDR US Hist Auto Stat 0 NR NR NR 0 0 0.250EDR US Hist Cleaners

NOTES:

TP = Target Property

NR = Not Requested at this Search Distance

Sites may be listed in more than one database

N/A = This State does not maintain a SHWS list. See the Federal CERCLIS list.

TC3674217.1s Page 6

MAP FINDINGSMap IDDirection

EDR ID NumberDistanceEPA ID NumberDatabase(s)SiteElevation

COADAMSTile name:YesDOD Site:COState:Not reportedName 3:Rocky Mountain Arsenal (Closed)Name 2:Rocky Mountain Arsenal National Wildlife RefugeName 1:http://refuges.fws.gov/profiles/index.cfm?id=61170URL:Not reportedFeature 3:Army DODFeature 2:National Wildlife Refuge FWSFeature 1:

DOD:

2923 ft.1/2-1West ROCKY MOUNTAIN ARSENAL NA (County), CO Region N/ADOD DODROCKY MOUNTAIN ARSENAL NATIONAL WILDLIFE REFUGE CUSA130935

hazardous waste during any calendar month, and accumulates more than 1 waste during any calendar month; or generates 1 kg or less of acutely cleanup of a spill, into or on any land or water, of acutely hazardous residue or contaminated soil, waste or other debris resulting from the during any calendar month; or generates more than 100 kg of any calendar month; or generates more than 1 kg of acutely hazardous waste Handler: generates 1,000 kg or more of hazardous waste during anyDescription: Large Quantity GeneratorClassification: waste Handler is engaged in the treatment, storage or disposal of hazardousDescription: TSDFClassification: FederalLand type: 08EPA Region: [email protected] email: (303) 289-0180Contact telephone: USContact country: COMMERCE CITY, CO 80022 GATEWAY ROADContact address: CHARLES T SCHARMANNContact: COMMERCE CITY, CO 80022 GATEWAY ROADMailing address: CO5210020769EPA ID: COMMERCE CITY, CO 80022 6550 GATEWAY ROADFacility address: ROCKY MOUNTAIN ARSENALFacility name: 06/23/2012Date form received by agency:

RCRA-TSDF:

US AIRS2020 COR ACTION

CA HAZNETNY MANIFEST

RAATSROD

CONSENTUS INST CONTROL

US ENG CONTROLS2743 ft. RCRA-LQG1/2-1 CORRACTSWest CERCLISADAMS COUNTY, CO 80022Region NPLIMMED N STAPLETON INTL ARPT CO5210020769NPL RCRA-TSDFROCKY MOUNTAIN ARSENAL (USARMY) 1000273404

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NoFurnace exemption: NoOn-site burner exemption: NoUnderground injection activity: NoTreater, storer or disposer of HW: NoTransporter of hazardous waste: NoRecycler of hazardous waste: NoMixed waste (haz. and radioactive): NoU.S. importer of hazardous waste:

Handler Activities Summary:

Not reportedOwner/Op end date: 06/05/1942Owner/Op start date: OwnerOwner/Operator Type: FederalLegal status: Not reportedOwner/operator telephone: USOwner/operator country: COMMERCE CITY, CO 80022 QUEBEC STOwner/operator address: U S DEPARTMENT OF THE ARMYOwner/operator name:

Not reportedOwner/Op end date: 06/05/1942Owner/Op start date: OwnerOwner/Operator Type: FederalLegal status: (303) 289-0180Owner/operator telephone: Not reportedOwner/operator country: COMMERCE CITY, CO 80022 GATEWAY ROADOwner/operator address: U.S. DEPARTMENT OF THE ARMYOwner/operator name:

Not reportedOwner/Op end date: 06/05/1942Owner/Op start date: OperatorOwner/Operator Type: FederalLegal status: Not reportedOwner/operator telephone: Not reportedOwner/operator country: Not reported Not reportedOwner/operator address: U.S. DEPARTMENT OF THE ARMYOwner/operator name:

Not reportedOwner/Op end date: 05/01/1942Owner/Op start date: OperatorOwner/Operator Type: FederalLegal status: Not reportedOwner/operator telephone: USOwner/operator country: COMMERCE CITY, CO 80022 US ARMY-72ND AVE & QUEBEC STOwner/operator address: U S DEPARTMENT OF THE ARMYOwner/operator name:

Owner/Operator Summary:

100 kg of that material at any time hazardous waste during any calendar month, and accumulates more than from the cleanup of a spill, into or on any land or water, of acutely of any residue or contaminated soil, waste or other debris resulting kg of acutely hazardous waste at any time; or generates 100 kg or less

ROCKY MOUNTAIN ARSENAL (USARMY) (Continued) 1000273404

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Large Quantity GeneratorClassification: ROCKY MOUNTAIN ARSENAL - ARMYSite name: ROCKY MOUNTAIN ARSENALFacility name: 03/30/2004Date form received by agency:







Large Quantity GeneratorClassification: ROCKY MOUNTAIN ARSENALFacility name: 02/24/2010Date form received by agency:



Historical Generators:

NoUsed oil transporter: NoUsed oil transfer facility: NoUsed oil Specification marketer: NoUsed oil fuel marketer to burner: NoUser oil refiner: NoUsed oil processor: NoUsed oil fuel burner:


TC3674217.1s Page 9



THE FOLLOWING SPENT HALOGENATED SOLVENTS: TETRACHLOROETHYLENE,Waste name: F002Waste code:

BENZENEWaste name: D018Waste code:

DISPOSED, THE WASTE WOULD BE A CORROSIVE HAZARDOUS WASTE. THESE CAUSTIC OR ACID SOLUTIONS BECOME CONTAMINATED AND MUST BE USED BY MANY INDUSTRIES TO CLEAN METAL PARTS PRIOR TO PAINTING. WHEN OR DEGREASE PARTS. HYDROCHLORIC ACID, A SOLUTION WITH A LOW PH, IS CAUSTIC SOLUTION WITH A HIGH PH, IS OFTEN USED BY INDUSTRIES TO CLEAN CONSIDERED TO BE A CORROSIVE HAZARDOUS WASTE. SODIUM HYDROXIDE, A A WASTE WHICH HAS A PH OF LESS THAN 2 OR GREATER THAN 12.5 ISWaste name: D002Waste code:

WHICH WOULD BE CONSIDERED AS IGNITABLE HAZARDOUS WASTE. MATERIAL. LACQUER THINNER IS AN EXAMPLE OF A COMMONLY USED SOLVENT WHICH CAN BE OBTAINED FROM THE MANUFACTURER OR DISTRIBUTOR OF THE FLASH POINT OF A WASTE IS TO REVIEW THE MATERIAL SAFETY DATA SHEET, CLOSED CUP FLASH POINT TESTER. ANOTHER METHOD OF DETERMINING THE LESS THAN 140 DEGREES FAHRENHEIT AS DETERMINED BY A PENSKY-MARTENS IGNITABLE HAZARDOUS WASTES ARE THOSE WASTES WHICH HAVE A FLASHPOINT OFWaste name: D001Waste code:

Hazardous Waste Summary:

Not a generator, verifiedClassification: ROCKY MOUNTAIN ARSENALFacility name: 11/18/1980Date form received by agency:


Conditionally Exempt Small Quantity GeneratorClassification: ROCKY MOUNTAIN ARSENALFacility name: 09/09/1994Date form received by agency:




Large Quantity GeneratorClassification: ROCKY MTN ARSENALSite name: ROCKY MOUNTAIN ARSENALFacility name: 02/15/2000Date form received by agency:



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ORTHO-DICHLOROBENZENE, TRICHLOROFLUOROMETHANE, AND CHLOROBENZENE, 1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE, METHYLENE CHLORIDE, TRICHLOROETHYLENE, 1,1,1-TRICHLOROETHANE, THE FOLLOWING SPENT HALOGENATED SOLVENTS: TETRACHLOROETHYLENE,Waste name: F002Waste code:

SPENT SOLVENTS AND SPENT SOLVENT MIXTURES. IN F002, F004, AND F005, AND STILL BOTTOMS FROM THE RECOVERY OF THESE ONE OR MORE OF THE ABOVE HALOGENATED SOLVENTS OR THOSE SOLVENTS LISTED CONTAINING, BEFORE USE, A TOTAL OF TEN PERCENT OR MORE (BY VOLUME) OF FLUOROCARBONS; ALL SPENT SOLVENT MIXTURES/BLENDS USED IN DEGREASING 1,1,1-TRICHLOROETHANE, CARBON TETRACHLORIDE, AND CHLORINATED TETRACHLOROETHYLENE, TRICHLOROETHYLENE, METHYLENE CHLORIDE, THE FOLLOWING SPENT HALOGENATED SOLVENTS USED IN DEGREASING:Waste name: F001Waste code:

BENZENEWaste name: D018Waste code:

MERCURYWaste name: D009Waste code:

LEADWaste name: D008Waste code:

CADMIUMWaste name: D006Waste code:

WHICH WOULD BE CONSIDERED AS IGNITABLE HAZARDOUS WASTE. MATERIAL. LACQUER THINNER IS AN EXAMPLE OF A COMMONLY USED SOLVENT WHICH CAN BE OBTAINED FROM THE MANUFACTURER OR DISTRIBUTOR OF THE FLASH POINT OF A WASTE IS TO REVIEW THE MATERIAL SAFETY DATA SHEET, CLOSED CUP FLASH POINT TESTER. ANOTHER METHOD OF DETERMINING THE LESS THAN 140 DEGREES FAHRENHEIT AS DETERMINED BY A PENSKY-MARTENS IGNITABLE HAZARDOUS WASTES ARE THOSE WASTES WHICH HAVE A FLASHPOINT OFWaste name: D001Waste code:

LAB PACKWaste name: LABPWaste code:

F028). HAZARDOUS WASTES NUMBER(S): F020, F021, F022, F026, F027, AND/OR HAZARDOUS WASTES AND NO OTHER HAZARDOUS WASTES RETAINS ITS EPA RESULTING FROM THE DISPOSAL OF ONE OR MORE OF THE FOLLOWING EPA CLASSIFIED AS HAZARDOUS UNDER SUBPART D OF THIS PART. (LEACHATE RESULTING FROM THE DISPOSAL OF MORE THAN ONE RESTRICTED WASTE LEACHATE (LIQUIDS THAT HAVE PERCOLATED THROUGH LAND DISPOSED WASTES)Waste name: F039Waste code:

SPENT SOLVENT MIXTURES. F005, AND STILL BOTTOMS FROM THE RECOVERY OF THESE SPENT SOLVENTS AND OF THE ABOVE HALOGENATED SOLVENTS OR THOSE LISTED IN F001, F004, OR BEFORE USE, A TOTAL OF TEN PERCENT OR MORE (BY VOLUME) OF ONE OR MORE 1,1,2-TRICHLOROETHANE; ALL SPENT SOLVENT MIXTURES/BLENDS CONTAINING, ORTHO-DICHLOROBENZENE, TRICHLOROFLUOROMETHANE, AND CHLOROBENZENE, 1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE, METHYLENE CHLORIDE, TRICHLOROETHYLENE, 1,1,1-TRICHLOROETHANE,


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LESS THAN 140 DEGREES FAHRENHEIT AS DETERMINED BY A PENSKY-MARTENS IGNITABLE HAZARDOUS WASTES ARE THOSE WASTES WHICH HAVE A FLASHPOINT OFWaste name: D001Waste code:

Annual Waste Handled:

Last Biennial Reporting Year: 2013

Biennial Reports:

1,3-CYCLOPENTADIENE, 1,2,3,4,5,5-HEXACHLORO-Waste name: U130Waste code:

BENZENE (I,T)Waste name: U019Waste code:

METHYL PARATHIONWaste name: P071Waste code:

METABOLITES (1AALPHA,2BETA,2ABETA,3ALPHA,6ALPHA,6ABETA,7BETA, 7AALPHA)-, & 1A,2,2A,3,6,6A,7,7A-OCTAHYDRO-, 2,7:3,6-DIMETHANONAPHTH [2,3-B]OXIRENE, 3,4,5,6,9,9-HEXACHLORO-Waste name: P051Waste code:

PRODUCTION OF CHLORDANE. VACUUM STRIPPER DISCHARGE FROM THE CHLORDANE CHLORINATOR IN THEWaste name: K097Waste code:

THE PRODUCTION OF CHLORDANE. WASTEWATER AND SCRUB WATER FROM THE CHLORINATION OF CYCLOPENTADIENE INWaste name: K033Waste code:

F028). HAZARDOUS WASTES NUMBER(S): F020, F021, F022, F026, F027, AND/OR HAZARDOUS WASTES AND NO OTHER HAZARDOUS WASTES RETAINS ITS EPA RESULTING FROM THE DISPOSAL OF ONE OR MORE OF THE FOLLOWING EPA CLASSIFIED AS HAZARDOUS UNDER SUBPART D OF THIS PART. (LEACHATE RESULTING FROM THE DISPOSAL OF MORE THAN ONE RESTRICTED WASTE LEACHATE (LIQUIDS THAT HAVE PERCOLATED THROUGH LAND DISPOSED WASTES)Waste name: F039Waste code:

MIXTURES. BOTTOMS FROM THE RECOVERY OF THESE SPENT SOLVENTS AND SPENT SOLVENT MORE OF THOSE SOLVENTS LISTED IN F001, F002, F004, AND F005, AND STILL SOLVENTS, AND, A TOTAL OF TEN PERCENT OR MORE (BY VOLUME) OF ONE OR CONTAINING, BEFORE USE, ONE OR MORE OF THE ABOVE NON-HALOGENATED NON-HALOGENATED SOLVENTS; AND ALL SPENT SOLVENT MIXTURES/BLENDS MIXTURES/BLENDS CONTAINING, BEFORE USE, ONLY THE ABOVE SPENT ALCOHOL, CYCLOHEXANONE, AND METHANOL; ALL SPENT SOLVENT ACETATE, ETHYL BENZENE, ETHYL ETHER, METHYL ISOBUTYL KETONE, N-BUTYL THE FOLLOWING SPENT NON-HALOGENATED SOLVENTS: XYLENE, ACETONE, ETHYLWaste name: F003Waste code:

SPENT SOLVENT MIXTURES. F005, AND STILL BOTTOMS FROM THE RECOVERY OF THESE SPENT SOLVENTS AND OF THE ABOVE HALOGENATED SOLVENTS OR THOSE LISTED IN F001, F004, OR BEFORE USE, A TOTAL OF TEN PERCENT OR MORE (BY VOLUME) OF ONE OR MORE 1,1,2-TRICHLOROETHANE; ALL SPENT SOLVENT MIXTURES/BLENDS CONTAINING,


TC3674217.1s Page 12



CA077HEvent: 04/17/1995Event date:

CA006OUEvent: 03/06/1987Event date:

RFA CompletedEvent: 03/06/1987Event date:

Corrective Action Summary:

162Amount (Lbs): LAB PACKWaste name: LABPWaste code:

514340Amount (Lbs): F028). HAZARDOUS WASTES NUMBER(S): F020, F021, F022, F026, F027, AND/OR HAZARDOUS WASTES AND NO OTHER HAZARDOUS WASTES RETAINS ITS EPA RESULTING FROM THE DISPOSAL OF ONE OR MORE OF THE FOLLOWING EPA CLASSIFIED AS HAZARDOUS UNDER SUBPART D OF THIS PART. (LEACHATE RESULTING FROM THE DISPOSAL OF MORE THAN ONE RESTRICTED WASTE LEACHATE (LIQUIDS THAT HAVE PERCOLATED THROUGH LAND DISPOSED WASTES)Waste name: F039Waste code:

418000Amount (Lbs): SPENT SOLVENT MIXTURES. F005, AND STILL BOTTOMS FROM THE RECOVERY OF THESE SPENT SOLVENTS AND OF THE ABOVE HALOGENATED SOLVENTS OR THOSE LISTED IN F001, F004, OR BEFORE USE, A TOTAL OF TEN PERCENT OR MORE (BY VOLUME) OF ONE OR MORE 1,1,2-TRICHLOROETHANE; ALL SPENT SOLVENT MIXTURES/BLENDS CONTAINING, ORTHO-DICHLOROBENZENE, TRICHLOROFLUOROMETHANE, AND CHLOROBENZENE, 1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE, METHYLENE CHLORIDE, TRICHLOROETHYLENE, 1,1,1-TRICHLOROETHANE, THE FOLLOWING SPENT HALOGENATED SOLVENTS: TETRACHLOROETHYLENE,Waste name: F002Waste code:

98Amount (Lbs): BENZENEWaste name: D018Waste code:

162Amount (Lbs): DISPOSED, THE WASTE WOULD BE A CORROSIVE HAZARDOUS WASTE. THESE CAUSTIC OR ACID SOLUTIONS BECOME CONTAMINATED AND MUST BE USED BY MANY INDUSTRIES TO CLEAN METAL PARTS PRIOR TO PAINTING. WHEN OR DEGREASE PARTS. HYDROCHLORIC ACID, A SOLUTION WITH A LOW PH, IS CAUSTIC SOLUTION WITH A HIGH PH, IS OFTEN USED BY INDUSTRIES TO CLEAN CONSIDERED TO BE A CORROSIVE HAZARDOUS WASTE. SODIUM HYDROXIDE, A A WASTE WHICH HAS A PH OF LESS THAN 2 OR GREATER THAN 12.5 ISWaste name: D002Waste code:

260Amount (Lbs): WHICH WOULD BE CONSIDERED AS IGNITABLE HAZARDOUS WASTE. MATERIAL. LACQUER THINNER IS AN EXAMPLE OF A COMMONLY USED SOLVENT WHICH CAN BE OBTAINED FROM THE MANUFACTURER OR DISTRIBUTOR OF THE FLASH POINT OF A WASTE IS TO REVIEW THE MATERIAL SAFETY DATA SHEET, CLOSED CUP FLASH POINT TESTER. ANOTHER METHOD OF DETERMINING THE


TC3674217.1s Page 13



determination will be re-evaluated when the Agency becomes aware of remains within the existing area of contaminated groundwater. This monitoring will be conducted to confirm that contaminated groundwater migration of contaminated groundwater is under control, and that at the facility. Specifically, this determination indicates that the determined that migration of contaminated groundwater is under control review of information contained in the EI determination, it has been Contaminated Groundwater Under Control has been verified. Based on a Igration of Contaminated Groundwater under Control, Yes, Migration ofEvent: 09/23/1998Event date:

changes at the facility. re-evaluated when the Agency/State becomes aware of significant reasonably expected conditions. This determination will be expected to be under control at the facility under current and contained in the EI determination, current human exposures are Under Control has been verified. Based on a review of information Current Human Exposures under Control, Yes, Current Human ExposuresEvent: 09/23/1998Event date:

Corrective Measures Design ApprovedEvent: 07/31/1998Event date:

CA006OUEvent: 06/11/1996Event date:

action priority. CA Prioritization, Facility or area was assigned a high correctiveEvent: 06/11/1996Event date:

RFI ImpositionEvent: 06/11/1996Event date:

Date For Remedy Selection (CM Imposed)Event: 06/11/1996Event date:

migration of contaminated groundwater is observed or expected. Igration of Contaminated Groundwater under Control, UnacceptableEvent: 04/19/1995Event date:

RFA Determination Of Need For An RFI, RFI is Necessary;Event: 04/19/1995Event date:

considerations and administrative considerations. at the facility, technical factors, the degree of risk, timing stabilization activity based on the status of corrective action work Stabilization Measures Evaluation,This facility is amenable toEvent: 04/19/1995Event date:



TC3674217.1s Page 14



SS - PART 100Regulation violated:

Not reported Paid penalty amount: 18600 Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 12/19/2002 Enforcement action date: FINAL 3008(A) COMPLIANCE ORDER Enforcement action: StateViolation lead agency: 12/19/2002Date achieved compliance: 05/30/2001Date violation determined: TSD - Container Use and ManagementArea of violation: SR - 264/265.170-178Regulation violated:

Facility Has Received Notices of Violations:

CAGPREvent: Not reportedEvent date:

CA550RCEvent: 03/07/2006Event date:

significant changes at the facility. determination will be re-evaluated when the Agency becomes aware of remains within the existing area of contaminated groundwater. This monitoring will be conducted to confirm that contaminated groundwater migration of contaminated groundwater is under control, and that at the facility. Specifically, this determination indicates that the determined that migration of contaminated groundwater is under control review of information contained in the EI determination, it has been Contaminated Groundwater Under Control has been verified. Based on a Igration of Contaminated Groundwater under Control, Yes, Migration ofEvent: 06/06/2000Event date:


CMI Workplan ApprovedEvent: 04/08/1999Event date:

the facility, or other administrative considerations. risk, timing considerations, the status of corrective action work at conclusion may be the status of closure at the facility, the degree of there is a lack of technical information (IN). Reasons for this it appears to be technically infeasible or inappropriate (NF) or 2- stabilization activity at the present time for reasons other than 1- Stabilization Measures Evaluation,This facility is not amenable toEvent: 09/23/1998Event date:

significant changes at the facility.


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Used Oil - GeneratorsArea of violation: SR - 279Regulation violated:

Not reported Paid penalty amount: 18600 Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 12/19/2002 Enforcement action date: FINAL 3008(A) COMPLIANCE ORDER Enforcement action: StateViolation lead agency: 12/19/2002Date achieved compliance: 05/30/2001Date violation determined: TSD - GeneralArea of violation: SR - 264/265Regulation violated:

Not reported Paid penalty amount: 18600 Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 12/19/2002 Enforcement action date: FINAL 3008(A) COMPLIANCE ORDER Enforcement action: StateViolation lead agency: 12/19/2002Date achieved compliance: 05/30/2001Date violation determined: TSD - Preparedness and PreventionArea of violation: SR - 264/265.30-37Regulation violated:

Not reported Paid penalty amount: 18600 Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 12/19/2002 Enforcement action date: FINAL 3008(A) COMPLIANCE ORDER Enforcement action: StateViolation lead agency: 12/19/2002Date achieved compliance: 05/30/2001Date violation determined: TSD - General Facility StandardsArea of violation: SR - 264/265.10-19Regulation violated:

Not reported Paid penalty amount: 18600 Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 12/19/2002 Enforcement action date: FINAL 3008(A) COMPLIANCE ORDER Enforcement action: StateViolation lead agency: 12/19/2002Date achieved compliance: 05/30/2001Date violation determined: State Statute or RegulationArea of violation:


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10/19/2000Date violation determined: TSD IS-Thermal TreatmentArea of violation: SR - 264.600-603 & 265.370-383Regulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: Not reported Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: Not reported Enforcement action date: Not reported Enforcement action: StateViolation lead agency: 12/19/2002Date achieved compliance: 03/21/2001Date violation determined: Used Oil - GeneratorsArea of violation: SR - 279Regulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: Not reported Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: Not reported Enforcement action date: Not reported Enforcement action: StateViolation lead agency: 12/19/2002Date achieved compliance: 03/21/2001Date violation determined: Generators - Pre-transportArea of violation: SR - 262.34.A.4Regulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: Not reported Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: Not reported Enforcement action date: Not reported Enforcement action: StateViolation lead agency: 12/19/2002Date achieved compliance: 03/23/2001Date violation determined: Generators - Pre-transportArea of violation: SR - 262.34.A.4Regulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: Not reported Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: Not reported Enforcement action date: Not reported Enforcement action: StateViolation lead agency: 12/19/2002Date achieved compliance: 03/23/2001Date violation determined:


TC3674217.1s Page 17



03/15/1996Date achieved compliance: 01/24/1994Date violation determined: Generators - GeneralArea of violation: SR - PARTS 265 & 266Regulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 06/07/1996 Enforcement action date: FINAL 3008(H) I.S. CA ORDER Enforcement action: StateViolation lead agency: 06/07/1996Date achieved compliance: 03/15/1996Date violation determined: TSD - GeneralArea of violation: SR - PARTS 265 & 266Regulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 05/24/1996 Enforcement action date: INIT. 3008(H) I.S. CA ORDER Enforcement action: StateViolation lead agency: 06/07/1996Date achieved compliance: 03/15/1996Date violation determined: TSD - GeneralArea of violation: SR - PARTS 265 & 266Regulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 10/20/2000 Enforcement action date: INITIAL IMMINENT AND SUBSTANTIAL ENDANGERMENT ORDER Enforcement action: StateViolation lead agency: 12/19/2002Date achieved compliance: 10/19/2000Date violation determined: TSD IS-Thermal TreatmentArea of violation: SR - 264.600-603 & 265.370-383Regulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 11/22/2000 Enforcement action date: FINAL IMMINENT HAZARD ORDER Enforcement action: StateViolation lead agency: 12/19/2002Date achieved compliance:


TC3674217.1s Page 18



StateViolation lead agency: 06/30/1994Date achieved compliance: 05/01/1989Date violation determined: TSD IS-Ground-Water MonitoringArea of violation: Not reportedRegulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 05/23/1989 Enforcement action date: INITIAL 3008(A) COMPLIANCE Enforcement action: StateViolation lead agency: 06/30/1994Date achieved compliance: 05/01/1989Date violation determined: TSD - GeneralArea of violation: Not reportedRegulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 08/06/1993 Enforcement action date: FINAL 3008(A) COMPLIANCE ORDER Enforcement action: StateViolation lead agency: 08/06/1993Date achieved compliance: 07/08/1993Date violation determined: TSD - GeneralArea of violation: SR - PARTS 265 & 266Regulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 08/06/1993 Enforcement action date: FINAL 3008(H) I.S. CA ORDER Enforcement action: StateViolation lead agency: 08/06/1993Date achieved compliance: 07/08/1993Date violation determined: TSD - GeneralArea of violation: SR - PARTS 265 & 266Regulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 06/30/1994 Enforcement action date: FINAL CIVIL JUDICIAL ACTION FOR COMPLIANCE AND/OR MONETARY PENALTY Enforcement action: StateViolation lead agency:


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INITIAL CIVIL JUDICIAL ACTION FOR COMPLIANCE AND/OR MONETARY PENALTY Enforcement action: StateViolation lead agency: 07/16/1986Date achieved compliance: 06/26/1986Date violation determined: TSD IS-Ground-Water MonitoringArea of violation: Not reportedRegulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: Not reported Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: Not reported Enforcement action date: Not reported Enforcement action: EPAViolation lead agency: 09/08/1988Date achieved compliance: 10/26/1987Date violation determined: TSD - GeneralArea of violation: Not reportedRegulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 06/03/1988 Enforcement action date: WRITTEN INFORMAL Enforcement action: StateViolation lead agency: 06/18/1988Date achieved compliance: 06/03/1988Date violation determined: TSD - GeneralArea of violation: Not reportedRegulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 05/23/1989 Enforcement action date: INITIAL 3008(A) COMPLIANCE Enforcement action: StateViolation lead agency: 06/30/1994Date achieved compliance: 05/01/1989Date violation determined: TSD - Closure/Post-ClosureArea of violation: Not reportedRegulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 05/23/1989 Enforcement action date: INITIAL 3008(A) COMPLIANCE Enforcement action:


TC3674217.1s Page 20



StateEvaluation lead agency: Not reportedDate achieved compliance: Not reportedArea of violation: COMPLIANCE EVALUATION INSPECTION ON-SITEEvaluation: 09/18/2012Evaluation date:

Evaluation Action Summary:



Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 09/03/1986 Enforcement action date: REFERRAL TO ATTORNEY GENERAL Enforcement action: StateViolation lead agency: 07/16/1986Date achieved compliance: 06/26/1986Date violation determined: TSD IS-Ground-Water MonitoringArea of violation: Not reportedRegulation violated:

Not reported Paid penalty amount: Not reported Final penalty amount: Not reported Proposed penalty amount: State Enforcement lead agency: Not reported Enf. disp. status date: Not reported Enf. disposition status: 11/14/1986 Enforcement action date:


TC3674217.1s Page 21



Not reportedArea of violation: COMPLIANCE EVALUATION INSPECTION ON-SITEEvaluation: 09/24/2003Evaluation date:







StateEvaluation lead agency: Not reportedDate achieved compliance: Not reportedArea of violation: OPERATION AND MAINTENANCE INSPECTIONEvaluation: 09/23/2010Evaluation date:




TC3674217.1s Page 22



StateEvaluation lead agency: 12/19/2002Date achieved compliance: TSD - General Facility StandardsArea of violation: FOCUSED COMPLIANCE INSPECTIONEvaluation: 05/30/2001Evaluation date:

StateEvaluation lead agency: 12/19/2002Date achieved compliance: TSD - GeneralArea of violation: COMPLIANCE SCHEDULE EVALUATIONEvaluation: 05/30/2001Evaluation date:

StateEvaluation lead agency: 12/19/2002Date achieved compliance: TSD - Container Use and ManagementArea of violation: COMPLIANCE SCHEDULE EVALUATIONEvaluation: 05/30/2001Evaluation date:

StateEvaluation lead agency: 12/19/2002Date achieved compliance: TSD - Preparedness and PreventionArea of violation: COMPLIANCE SCHEDULE EVALUATIONEvaluation: 05/30/2001Evaluation date:


StateEvaluation lead agency: 12/19/2002Date achieved compliance: TSD - Container Use and ManagementArea of violation: FOCUSED COMPLIANCE INSPECTIONEvaluation: 05/30/2001Evaluation date:

StateEvaluation lead agency: 12/19/2002Date achieved compliance: State Statute or RegulationArea of violation: FOCUSED COMPLIANCE INSPECTIONEvaluation: 05/30/2001Evaluation date:



StateEvaluation lead agency: Not reportedDate achieved compliance:


TC3674217.1s Page 23



Generators - Pre-transportArea of violation: COMPLIANCE EVALUATION INSPECTION ON-SITEEvaluation: 03/21/2001Evaluation date:

StateEvaluation lead agency: 12/19/2002Date achieved compliance: Used Oil - GeneratorsArea of violation: COMPLIANCE EVALUATION INSPECTION ON-SITEEvaluation: 03/21/2001Evaluation date:



StateEvaluation lead agency: 12/19/2002Date achieved compliance: Used Oil - GeneratorsArea of violation: COMPLIANCE EVALUATION INSPECTION ON-SITEEvaluation: 03/23/2001Evaluation date:

StateEvaluation lead agency: 12/19/2002Date achieved compliance: Generators - Pre-transportArea of violation: COMPLIANCE EVALUATION INSPECTION ON-SITEEvaluation: 03/23/2001Evaluation date:

StateEvaluation lead agency: 12/19/2002Date achieved compliance: State Statute or RegulationArea of violation: COMPLIANCE SCHEDULE EVALUATIONEvaluation: 05/30/2001Evaluation date:

StateEvaluation lead agency: 12/19/2002Date achieved compliance: TSD - General Facility StandardsArea of violation: COMPLIANCE SCHEDULE EVALUATIONEvaluation: 05/30/2001Evaluation date:

StateEvaluation lead agency: 12/19/2002Date achieved compliance: TSD - GeneralArea of violation: FOCUSED COMPLIANCE INSPECTIONEvaluation: 05/30/2001Evaluation date:

StateEvaluation lead agency: 12/19/2002Date achieved compliance: TSD - Preparedness and PreventionArea of violation: FOCUSED COMPLIANCE INSPECTIONEvaluation: 05/30/2001Evaluation date:


TC3674217.1s Page 24



StateEvaluation lead agency: 03/15/1996Date achieved compliance: Generators - GeneralArea of violation: NON-FINANCIAL RECORD REVIEWEvaluation: 07/08/1993Evaluation date:

StateEvaluation lead agency: 08/06/1993Date achieved compliance: TSD - GeneralArea of violation: NON-FINANCIAL RECORD REVIEWEvaluation: 07/08/1993Evaluation date:


EPAEvaluation lead agency: Not reportedDate achieved compliance: Not reportedArea of violation: COMPLIANCE EVALUATION INSPECTION ON-SITEEvaluation: 09/13/1996Evaluation date:





StateEvaluation lead agency: 12/19/2002Date achieved compliance: TSD IS-Thermal TreatmentArea of violation: NON-FINANCIAL RECORD REVIEWEvaluation: 10/19/2000Evaluation date:

StateEvaluation lead agency: 12/19/2002Date achieved compliance:


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Generators - GeneralArea of violation: COMPLIANCE EVALUATION INSPECTION ON-SITEEvaluation: 05/10/1989Evaluation date:

StateEvaluation lead agency: 03/15/1996Date achieved compliance: Generators - GeneralArea of violation: COMPLIANCE EVALUATION INSPECTION ON-SITEEvaluation: 05/15/1989Evaluation date:

StateEvaluation lead agency: 08/06/1993Date achieved compliance: TSD - GeneralArea of violation: COMPLIANCE EVALUATION INSPECTION ON-SITEEvaluation: 05/15/1989Evaluation date:

StateEvaluation lead agency: 08/06/1993Date achieved compliance: TSD - GeneralArea of violation: FOCUSED COMPLIANCE INSPECTIONEvaluation: 05/17/1989Evaluation date:

StateEvaluation lead agency: 03/15/1996Date achieved compliance: Generators - GeneralArea of violation: FOCUSED COMPLIANCE INSPECTIONEvaluation: 05/17/1989Evaluation date:

StateEvaluation lead agency: Not reportedDate achieved compliance: Not reportedArea of violation: FINANCIAL RECORD REVIEWEvaluation: 05/19/1989Evaluation date:






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StateEvaluation lead agency: Not reportedDate achieved compliance: Not reportedArea of violation: NON-FINANCIAL RECORD REVIEWEvaluation: 08/25/1988Evaluation date:


StateEvaluation lead agency: 03/15/1996Date achieved compliance: Generators - GeneralArea of violation: GROUNDWATER MONITORING EVALUATIONEvaluation: 05/01/1989Evaluation date:

StateEvaluation lead agency: 06/30/1994Date achieved compliance: TSD - GeneralArea of violation: GROUNDWATER MONITORING EVALUATIONEvaluation: 05/01/1989Evaluation date:

StateEvaluation lead agency: 08/06/1993Date achieved compliance: TSD - GeneralArea of violation: GROUNDWATER MONITORING EVALUATIONEvaluation: 05/01/1989Evaluation date:

StateEvaluation lead agency: 06/30/1994Date achieved compliance: TSD - Closure/Post-ClosureArea of violation: GROUNDWATER MONITORING EVALUATIONEvaluation: 05/01/1989Evaluation date:

StateEvaluation lead agency: 06/30/1994Date achieved compliance: TSD IS-Ground-Water MonitoringArea of violation: GROUNDWATER MONITORING EVALUATIONEvaluation: 05/01/1989Evaluation date:

StateEvaluation lead agency: 08/06/1993Date achieved compliance: TSD - GeneralArea of violation: COMPLIANCE EVALUATION INSPECTION ON-SITEEvaluation: 05/10/1989Evaluation date:

StateEvaluation lead agency: 03/15/1996Date achieved compliance:


TC3674217.1s Page 27



Not reportedArea of violation: GROUNDWATER MONITORING EVALUATIONEvaluation: 06/26/1986Evaluation date:


StateEvaluation lead agency: Not reportedDate achieved compliance: Not reportedArea of violation: GROUNDWATER MONITORING EVALUATIONEvaluation: 04/08/1987Evaluation date:

EPA-Initiated Oversight/Observation/Training ActionsEvaluation lead agency: Not reportedDate achieved compliance: Not reportedArea of violation: GROUNDWATER MONITORING EVALUATIONEvaluation: 04/08/1987Evaluation date:





EPAEvaluation lead agency: 09/08/1988Date achieved compliance: TSD - GeneralArea of violation: COMPLIANCE SCHEDULE EVALUATIONEvaluation: 10/26/1987Evaluation date:



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EPAEvaluation lead agency: 08/22/1984Date achieved compliance: TSD - GeneralArea of violation: COMPLIANCE EVALUATION INSPECTION ON-SITEEvaluation: 05/08/1984Evaluation date:


EPAEvaluation lead agency: Not reportedDate achieved compliance: Not reportedArea of violation: FOCUSED COMPLIANCE INSPECTIONEvaluation: 11/12/1985Evaluation date:




EPAEvaluation lead agency: Not reportedDate achieved compliance: Not reportedArea of violation: FOCUSED COMPLIANCE INSPECTIONEvaluation: 03/17/1986Evaluation date:


StateEvaluation lead agency: 07/16/1986Date achieved compliance: TSD IS-Ground-Water MonitoringArea of violation: GROUNDWATER MONITORING EVALUATIONEvaluation: 06/26/1986Evaluation date:

EPA-Initiated Oversight/Observation/Training ActionsEvaluation lead agency: Not reportedDate achieved compliance:


TC3674217.1s Page 29



Not reportedSubstance: Not reportedSubstance ID: Currently on the Final NPLNPL Status:

Substance Details:

07/22/87Date Finalized: Not reportedDate Deleted: 10/15/84Date Proposed: 08EPA Region: ADAMSSite County: YesFederal Site: COSite State: ADAMS COUNTYSite City: 80022Site Zip: FinalSite Status: ROCKY MOUNTAIN ARSENAL (USARMY)Site Name:

Site Details:

10Category Value: Distance To Nearest Population-> 0 And <= 1/4 MileCategory Description: Currently on the Final NPLNPL Status:

50Category Value: Depth To Aquifer-> 25 And <= 50 FeetCategory Description: Currently on the Final NPLNPL Status:

Category Details:

1987-07-22 00:00:00Final Date: YFederal: 08EPA Region: CO5210020769EPA ID:

NPL:


EPAEvaluation lead agency: 06/17/1982Date achieved compliance: TSD - GeneralArea of violation: COMPLIANCE EVALUATION INSPECTION ON-SITEEvaluation: 04/26/1982Evaluation date:




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1445-75-6CAS #: DIISOPROPYLMETHYLPHOSPHONATESubstance: C562Substance ID: Currently on the Final NPLNPL Status:

2Scoring: GROUND WATER PATHWAYPathway: 1445-75-6CAS #: DIISOPROPYLMETHYLPHOSPHONATESubstance: C562Substance ID: Currently on the Final NPLNPL Status:

1Scoring: NO PATHWAY INDICATEDPathway: 7439-97-6CAS #: MERCURYSubstance: C460Substance ID: Currently on the Final NPLNPL Status:

1Scoring: NO PATHWAY INDICATEDPathway: 16984-48-8CAS #: FLUORIDESubstance: C393Substance ID: Currently on the Final NPLNPL Status:

1Scoring: NO PATHWAY INDICATEDPathway: 16887-00-6CAS #: CHLORIDESubstance: C170Substance ID: Currently on the Final NPLNPL Status:

2Scoring: SURFACE WATER PATHWAYPathway: 77-73-6CAS #: DICYCLOPENTADIENESubstance: C031Substance ID: Currently on the Final NPLNPL Status:

2Scoring: GROUND WATER PATHWAYPathway: 77-73-6CAS #: DICYCLOPENTADIENESubstance: C031Substance ID: Currently on the Final NPLNPL Status:

1Scoring: NO PATHWAY INDICATEDPathway: 505-60-2CAS #: MUSTARD GASSubstance: A037Substance ID: Currently on the Final NPLNPL Status:

Not reportedScoring: Not reportedPathway: Not reportedCAS #:


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GROUND WATER PATHWAYPathway: 72-20-8CAS #: ENDRINSubstance: P051Substance ID: Currently on the Final NPLNPL Status:

4Scoring: SURFACE WATER PATHWAYPathway: 60-57-1CAS #: DIELDRINSubstance: P037Substance ID: Currently on the Final NPLNPL Status:

4Scoring: GROUND WATER PATHWAYPathway: 60-57-1CAS #: DIELDRINSubstance: P037Substance ID: Currently on the Final NPLNPL Status:

4Scoring: SURFACE WATER PATHWAYPathway: 309-00-2CAS #: ALDRINSubstance: P004Substance ID: Currently on the Final NPLNPL Status:

3Scoring: GROUND WATER PATHWAYPathway: 309-00-2CAS #: ALDRINSubstance: P004Substance ID: Currently on the Final NPLNPL Status:

1Scoring: NO PATHWAY INDICATEDPathway: 15980-15-1CAS #: 1,4-OXATHIANESubstance: C576Substance ID: Currently on the Final NPLNPL Status:

1Scoring: NO PATHWAY INDICATEDPathway: 505-29-3CAS #: 1,4-DITHIANESubstance: C574Substance ID: Currently on the Final NPLNPL Status:

2Scoring: GROUND WATER PATHWAYPathway: 98-57-7CAS #: P-CHLOROPHENYLMETHYLSULFONESubstance: C563Substance ID: Currently on the Final NPLNPL Status:

2Scoring: SURFACE WATER PATHWAYPathway:


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NPL site if it was a RCRA-regulated land disposal unit. Basin F is apolicy when RMA was proposed in October 1984 was to exclude an area from ansite to include Basin F, and solicited comment on the proposal. EPA s RCRAexcluding alagoon known as Basin F, on the NPL, proposed to expand theunderway to accelerate the cleanup. On July 22, 1987, EPA placed RMA,Army has virtually completed its RI, and 13 interim response actions areanRI/FS on other areas off the facility. Status March 13, 1989): Theaction on the facility and some areas off the facility. EPA is conductingtype and extent of contamination and to identify alternatives for remedialconducting a remedial investigation/feasibility study RI/FS) to determine theground water intercept and treatment system is now in service. The Army isstudies and control actions at RMA. Status July 22, 1987): The thirdardous materials. To date, the Army has spent more than 25 million onof Defense seeks to identify, investigate, and clean up contamination from haRestoration Program, established in 1978. Under this program, the Departmentoff-site contamination. These activities are part of the Installationcontrolling or eliminating the sources of contamination on RMA and thea third system of this kind. The Army is also developing alternatives forcontaminants, and reinject the treated ground water. The Army is constructingcontaminated ground water, treat it with activated carbon to remove organicborders of RMA to control off-site migration. The systems pump outBoth the Army and Shell have constructed systems along the downgradientabout 4 square miles, with additional off-site ground water contamination.migrate off RMA, principally via ground water. Thecontaminated area coversContamination from some of these areas has migrated and may continue toand Recovery Act RCRA) when the Army filed Part A of permit applications.RMA; six received Interim Status under Subtitle C of the Resource Conservationherbicides. The Army has identified 165 possibly polluted areas atuntil 1982, Shell Chemical Co. used the site to manufacture pesticides andand demilitari ed mustard gas, nerve gas, and chemical munitions. From 1952Colorado. It covers over 27 square miles. Since 1942, RMA has manufacturedis located about 10 miles northeast of downtown Denver, Adams County,Conditions at proposal October 15, 1984): The Rocky Mountain Arsenal RMA)

Summary Details:

3Scoring: SURFACE WATER PATHWAYPathway: 96-12-8CAS #: 1,2-DIBROMO-3-CHLOROPROPANESubstance: U066Substance ID: Currently on the Final NPLNPL Status:

4Scoring: GROUND WATER PATHWAYPathway: 96-12-8CAS #: 1,2-DIBROMO-3-CHLOROPROPANESubstance: U066Substance ID: Currently on the Final NPLNPL Status:

1Scoring: NO PATHWAY INDICATEDPathway: 71-43-2CAS #: BENZENESubstance: U019Substance ID: Currently on the Final NPLNPL Status:

3Scoring:


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[email protected] Email: Community Involvement CoordinatorContact Title: (303) 312-6601Contact Tel: Jennifer ChergoContact Name: 13000436.00000Contact ID:

CERCLIS Site Contact Name(s):

Not reportedSite FUDS Flag: Not reportedAlias EPA ID: Not reportedCC Concurrence FY: / /CC Concurrence Date: 08001Site Fips Code: / /Non NPL Status Date: Not reportedNon NPL Status: USARRResp Fed Agency Code: Not reportedRBRAC Code: ACREDMNSN Unit Code: Currently on the Final NPLNPL Status: SUSite Settings Code: Federal FacilityClassification: 08EPA Region: IRST Code: Not reportedParent ID: Not reportedNFRAP Flag: Not reportedSite Init By Prog: Not reportedUSGS Quadrangle: YRCRA ID: NSite Orphan Flag: 17000.00000DMNSN Number: Federal FacilityFederal Facility: 10190003USGC Hydro Unit: 2080SMSA Number: 0811IFMS ID: 07Congressional District: ROCKY MOUNTAIN ARSENAL (UShort Name: ADAMSFacility County: CO5210020769EPA ID: 0800357Site ID:

CERCLIS:

COState: ADAMS COUNTYCity: ROCKY MOUNTAIN ARSENAL (USARMY)NPL Name:

Narratives Details:

Not reportedDeleted Date: 07/22/1987Final Date: 10/15/1984Proposed Date: FinalNPL Status:

Site Status Details:

Basin F is a major contributor to ground water contamination at RMA.to include Basin F. In addition, further investigation has demonstrated thathas finali ed the NPL/RCRA policy and is expanding this site under the policyregulated land disposal unit, and so EPA excluded it from the NPL site. EPA


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Plants with process cooling water, and construction of three seepage ponds in airrigation reservoirs and construction of a new reservoir to supply Southyard and service and maintenance facilities, modifications to preexistingextension of railway systems onto RMA, construction of a railway classificationactivities included construction of the South Plants manufacturing complex,incendiary munitions for use in World War II. Initial facility buildingmanufacture chemical warfare agents and agent-filled munitions and to produceThe Rocky Mountain Arsenal (RMA) was established in 1942 by the Army toSite Description: THIS IS BEING MONITORED BY FFIS,RCRIS,FATES,DOCKET UNDER EPA ID (CO8210820769)Alias Comments: 8270033Alias ID: 8270032Alias ID: 301Alias ID: Not reported Not reportedAlias Address: SOUTH ADAMS COUNTY - RMTN ARSNLAlias Name: 8270033Alias ID: Not reported Not reportedAlias Address: SOUTH ADAMS COUNTY (PVT. WELLS)Alias Name: 8270032Alias ID: COMMERCE CITY, CO 58355 IMMED. N. STAPLETON INTL ARPTAlias Address: ROCKY MOUNTAIN ARSENALAlias Name: 8270031Alias ID: ADAMS COUNTY, CO 80022 IMMED N STAPLETON INTL ARPTAlias Address: ROCKY MOUNTAIN ARSENAL (USARMY)Alias Name: 304Alias ID: COMMERCE CITY, CO 80022 IMMED N STAPLETON INTL ARPTAlias Address: ROCKY MOUNTAIN ARSENAL (USARMY)Alias Name: 303Alias ID: Not reported Not reportedAlias Address: ROCKY MOUNTAIN ARSENALAlias Name: 302Alias ID: COMMERCE CITY, CO 80022 N OF STAPLETON INTL AIRPORTAlias Address: US ARMY ROCKY MOUNTAIN ARSENALAlias Name: 301Alias ID: COMMERCE CY, CO 80022 ROCKY MTN ARSLAlias Address: SHELL CHEM COAlias Name: 101Alias ID:

CERCLIS Site Alias Name(s):

[email protected] Email: Remedial Project Manager (RPM)Contact Title: (303) 312-6661Contact Tel: Greg HargreavesContact Name: 8270055.00000Contact ID:

Not reportedContact Email: Site Assessment Manager (SAM)Contact Title: (303) 312-6627Contact Tel: Ryan DunhamContact Name: 13002897.00000Contact ID:


TC3674217.1s Page 35



material could be encountered. As a result, the ROD identified the Hex Pit as awithin the buried material. It was also considered likely that containerizedinvestigation to conclude that high concentrations of contaminants existedresults of the risk assessment for the Hex Pit waste material allowed theOn-Post OU, including the Hex Pit. The available historical record andROD contains a complete description of the risk assessment performed for theRecord of Decision (ROD). A ROD addressing OU3 was completed in June 1996. TheCharacterization was performed and used as the baseline risk assessment for thea Risk assessment called the Integrated Endangerment Assessment/Riskof concern (COCs) including hex, aldrin, dieldrin, endrin and isodrin. At RMA,pit. The surface sample collected contained detectable levels of contaminantsthe 0 to 1 ft depth but later determined that the sample had not entered the1.2 feet due to the presence of water in the soil. One sample was collected atwas located at the Hex Pit; however, the boring was only drilled to a depth ofthe Remedial Investigation conducted for the Hex Pit in 1985, one soil boringBuilding 571B, was constructed over the southern part of the Hex Pit. DuringSubsequent to disposal activities at the site, a tank storage structure,buried in drums and in bulk and the pit was covered, with several feet of soil.resinous materials that are relatively insoluble in water. The Hex bottoms wereto as Hex bottoms or Hex residue. These Hex bottoms are chlorinated organic,residual waste from the production process was a tarry material often referredintermediate process chemical used in the production of pesticides. Thehexachlorocyclopentadiene (Hex, also known as HCCPD and CL6CP). Hex was anused between 1950 and 1952 to dispose of waste resulting from the production ofboundary of the Central Processing Area in Section 1 of RMA. The Hex Pit wasgroundwater. The Hex Pit is located within the South Plants near the northPlants area have been other sources of contaminant releases to thethe former Basin F. Plumes flowing from the Motor Pool/Rail Yard and Northtank farm and production area, the Army and Shell trenches in Section 36, andthe Lime Settling Basins, the South Plants chemical sewer, the South Plantsgreatest contaminant releases to the groundwater have occurred from Basin A andcharacteristics and locations of the groundwater plumes suggest that thetrenches, disposal basins, or manufacturing complexes are located. Thesurface, although exceptions are noted, particularly at sites where burialcontaminant concentrations tend to occur in soil within five feet of the groundcentral manufacturing, transport, and waste disposal areas. The highesthighest levels and/or the greatest variety of contaminants are located in thesolvents, metals, and chemical warfare agent byproducts. The sites with thecontaminants found in soil and groundwater at these sites is pesticides,and F, Lime Basins, and the Army and Shell disposal trenches. The primaryprocessing area, Hex Pit, Buried M-1 Pits, and the chemical sewers), Basins AThe most highly contaminated areas identified are in South Plants (the centralapproximately 3,000 acres of soil, 15 groundwater plumes, and 798structures.completion in 2011. The contaminated areas within the On-Post OU includethe remedy for the remaining 25.5 square miles is ongoing and is scheduled forcleanup requirements and is no longer part of the NPL site. Implementation ofJanuary 2003, a 1.5 square mile of the On-Post OU was determined to meetOn-Post OU addresses contamination within the fenced 27 square miles of RMA. InRMA. The Off-Post OU addresses contamination north and northwest of RMA. Thegroundwater. The On-Post Operable Unit (OU) is one of two operable units atresulted in contamination of structures, soil, surface water, anddisposal practices used during the years when the facility had private ownersmanufacture industrial and agricultural chemicals. Common industrial and wasteparts of the South Plants facilities were leased to private companies to1980s, the facilities continued to be used by the Army. Beginning in 1946,undeveloped ranchland and farmland. Following the war and through the earlylarge earthen depression in Section 36. Prior to 1942, the area was largely


TC3674217.1s Page 36



following live testing in Section 32. The pits were also used in 1965 todemilitarized bombs and disposed components from stimulant-filled M55 rocketsgasoline). In addition, the Army incinerated fuses and bursters fromphosphorus, black powder, napalm, or PT1 (a mixture of magnesium paste andknown to have contained any of the following chemicals: Bunker C oil, whitetrench-like pit or on the surface. Munitions disposed in the burn pits areof Section 32. Disposal was accomplished by burning the munitions either in amid-1960s, the Army disposed obsolete incendiary munitions in the western halfmunitions debris was present. As early as 1954 and continuing to theThe contamination areas consist of disposal trenches and burn pits wherewestern half of Section 32 and one area in the eastern portion of Section 30.identified in the Record of Decision (ROD) consists of 7 areas within thecontaminant releases to the groundwater. The Burial Trenches projectThe Motor Pool/Rail Yard and North Plants areas have been other sources ofthe Complex (Army) and Shell trenches in Section 36, and the former Basin F.South Plants chemical sewer, the South Plants tank farm and production area,releases to the groundwater have occurred from Basin A and the Lime Basins, thelocations of the groundwater plumes suggest that the greatest contaminantbasins, or manufacturing complexes are located. The characteristics andalthough exceptions are noted, particularly where burial trenches, disposalconcentrations tend to occur in soil within five feet of the ground surface,manufacturing, transport, and waste disposal areas. The highest contaminantand/or the greatest variety of contaminants are located in the centraland chemical warfare agent byproducts. The areas with the highest levelsand groundwater in these areas are organochlorine pesticides, solvents, metals,the Complex (Army) and Shell Trenches. The primary contaminants found in soilBuried M-1 Pits, and the chemical sewers), Basins A and F, the Lime Basins, andareas were identified in South Plants (the central processing area, Hex Pit,soil, 15 groundwater plumes, and 798 structures. The most highly contaminatedcontaminated areas within the On-Post OU included approximately 3,000 acres of17.2 square miles is ongoing and is scheduled for completion in 2011. Thelonger part of the NPL site. Implementation of the remedy for the remainingthe On-Post OU have been determined to meet cleanup requirements and are noapproximately 27 square miles of RMA. As of January 2004, 9.4 square miles ofand northwest of RMA. The On-Post OU addresses contamination within theone of two operable units at RMA. The Off-Post OU addresses contamination northin April 2003. Operable Unit (OU) 3 Burial Trenches: The On-Post OU isrespectively. A ROD Amendment addressing operable unit 3 (OU3) was completedSystems where it is treated. These systems were installed in 1984 and 1981,groundwater migrates toward the Northwest and North Boundary ContainmentSystem (BANCS), which was installed in 1990. Down gradient of the BANCS,under Basin A in Section 36 and is treated .at the Basin A Neck. Containmentcontamination in South Plants, including the Hex Pit area, migrates northwardof these compounds to groundwater. The majority of the groundwaterseparation between the waste and groundwater reduce the potential for releaseIn addition, the relative insolubility of the Hex compounds and the typicalpercent of the total concentration of organic compounds present in groundwater.the concentrations of Hex Pit contaminants accounted for approximately 0.01source. If the Hex Pit is assumed to be a source of groundwater contamination,and down gradient of the pit, the Hex Pit could not be identified as a definitegroundwater. However, because these contaminants were present both up gradientlow-level concentrations of some Hex Pit contaminants were present inshould be implemented. The results of the investigation indicated thatof groundwater contamination and whether an interim response action (IRA)yards. An investigation was conducted to assess if the Hex Pit was a source81 feet by 10 feet deep resulting in an estimated volume of 3,300 bank cubicprincipal threat site. The Hex Pit was identified as approximately 110 feet by


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a total of 34 areas added during or after completion of the design. NewOE hazards, 4 of which were added to the Burial Trenches project, resulting inhazards. As a result of this evaluation, areas were identified with potentialwas conducted to identify additional areas with potential chemical agent or OEresponse to the discovery of several bomblets at RMA, a site-wide evaluationto other active Burial Trenches remedy areas. During 2001 and 2002, inincorporated into the Burial Trenches project due to the proximity of the areahealth site evaluation criteria (SEC). Excavation of the Section 20 soils wassoils found in Section 20 identified concentrations of metals above the humanthe scope of the Burial Trenches project. In addition, analysis of discoloredareas were similar to the ROD-identified areas, these new areas were added tothe ROD-identified Burial Trenches areas. Because the characteristics of thesewere identified with munitions debris and/or areas of charred soil similar toin 1999 and project implementation (2000 through 2002), 29 additional areasremedy areas were added to the Burial Trenches project. During remedial designTrenches Based on new information developed after the ROD, a total of 34 newproject. - ESA-2a 1 through ESA-2a7, Burn Pits - ESA-2c, Liquid Disposalhistory and contamination characteristics to comprise the Burial Trenchesdisposal in the ESA-2c trenches. The ROD identified 8 areas with similar usethat the casings were emptied and decontaminated with an acid wash prior toLewisite, phosgene, or incendiary chemicals, historical information indicatessite were known to have been filled at one time with nerve agent, mustard,liquid-filled munitions. Although empty munitions casings excavated from thisindicate that this site was ever used for the disposal of liquid agent oralthough this was discovered to be a misnomer because no historical databomblets. Area ESA-2c was designated as the Liquid Disposal Trenches,remains of more shell casings, incendiary bomblets and demilitarized M125recover scrap metal. Munitions items removed from the trenches included the1/2-ton truck were recovered. In 1970, the trenches were again excavated toas scrap. Several thousand artillery shells, 3,500 pounds of brass, and a 2trenches were excavated to determine whether metal buried there could be soldused in the mid-1950s to incinerate M34 white phosphorus grenades. In 1958, theof Section 30 consisting of two or more trenches. These trenches were initiallyareas. The ROD identified one disposal area, ESA-2c, in the eastern portion(HHE) soil and munitions debris soil in the Burial Trenches projectdata collected during the RI resulted in designation of human health exceedanceand lead [Pb]) in excess of background levels. Risk-based analysis of samplethe trenches contained concentrations of metals (cadmium [Cd], chromium [Cr]the surface in the areas surrounding the trenches. Soil samples collected fromthe metal debris is present throughout the trenches and is located at or nearField observations made during the Remedial Investigation (RI) indicate thatin these areas were munitions debris and potential ordnance explosives (OE).or M47 incendiary bombs were sometimes used as fuel. The principal hazardsover the pit material, and the contents were ignited. Rejected lots of napalmWhen the pit was full, additional wood was placed on top, fuel oil was pouredto 5 tons of lumber with the potentially contaminated material stacked on top.munitions casings. When used for this purpose, the pits were first lined with 4used for decontamination of tools, equipment, unwanted containers, and emptyoccurred on the surface area adjacent to the pits. The burn pits were alsoscrap metal was removed and sold to outside interests. In some cases, burningcool and then were refilled for another burn. When the pits became full, theall bombs in the pit. After incineration was complete, the pits were allowed topits, emptied, and ignited at the upwind end, causing subsequent detonation ofmunitions were disposed in a similar manner. Housed bombs were trucked to thebombs, phosgene-filled ton containers and incendiary munitions. Mostactivities in the western half of Section 32 included storage of M34 clusterdecontaminate 1,200 drums that formerly contained pesticide. Historical


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excavations were located within concentrated debris areas where the depth ofperformed during design to verify the remediation depths. The exploratorythese areas is located at or near the surface. Exploratory excavations weremunitions debris areas based on RI data indicating that the metal debris inremediation areas. The ROD designates a 1-foot excavation depth formunitions debris became the primary criterion for locating and defining debrisineffective for identifying munitions debris areas. Visual identification ofparticles of metal from demolition activities made the magnetometersdebris boundaries. However, the presence of disturbed soil areas and minuteInitially, the design team used magnetometers in an attempt to define metalROD-identified areas. Field verification efforts were targeted to these areas.identify areas of possible metallic debris within and adjacent toa geophysical survey of the northeastern portion of RMA were reviewed todebris areas and identify any additional areas with munitions debris. Data fromreconnaissance was performed to verify boundaries of ROD-identified munitionsremediation areas in the Burial Trenches project. During design, fieldadded to the Burial Trenches project due to the proximity of the area to otherresulting in designation of a HHE excavation area. Excavation of this soil wasindicated concentrations of chromium and mercury above the human health SECin 1994 and 1997, discolored (red) soil was observed. Subsequent samplingDuring revegetation efforts by United States Fish and Wildlife Service (USFWS)1974. The area was eventually reseeded and restored to natural conditions.of ESP residue were tilled into the upper 6 inches of soil in the summer ofSection 20 and was plowed and disked into the soil. Approximately 69,000 poundsThe ESP residue, described as red ash, was spread over a 32-acre area inand collect red iron oxide particulates from incinerator exhaust air stream.undistilled Levinstein mustard. The ESP was used during incineration to removefor disposal of ash and ESP residue generated from the demilitarization ofidentified for remediation of HHE soil. In 1974, part of Section 20 was usedrequirement. During project implementation, an area in Section 20 was alsoAny residual munitions debris was removed to meet the performance-basedremoved. The area was then ripped to a depth of 18 inches and inspected again.was visually inspected and any additional munitions debris identified waslimits of the trenches described in the design. Following excavation, each areaAt a minimum, waste material (munitions debris and soil) was excavated to thedefined on a performance basis to include all visible debris at each location.boundaries determined during design investigations, remediation limits wereduring the RI. Although design volumes were calculated based on the trenchmodified to include the HHE sample depths and actual debris depths observedreflect the actual trench configurations. In addition, excavation depths werethe horizontal limits of the trench boundaries were revised to more accuratelyof the ROD. Based on this review and field verification of location and shape,photos were reviewed using a digital process that was not available at the timecalculations are documented in the SQCSR. During design, historical aerialAssessment Report figures by an assumed depth of 10 feet. These volumeestimated by multiplying the trench area calculated from the Contaminationabove the human health Site Evaluation Criteria (SEC). Remediation volumes weresurface area as HHE soil based on concentrations of metals (Cd, Cr and Pb)Quantity Calculation Summary Report (SQCSR) identify four trenches and oneBT29-02, Disposal Pit - BT30-01, Surface Debris Area The ROD and Soil(RCWM) and OE Hazard Evaluation - BT29-01 and BT32-11, Disposal Trenches -Debris New areas identified by the Recovered Chemical Warfare MaterialBT32-9, Surface Burnt Debris Areas - BT32-10, Burn Pit - Borrow Area 10Area - BT20-01, Electrostatic Precipitator (ESP) Disposal - BT32-01 throughTrenches - BT6-01 and BT6-02, Surface Debris Areas - BT9-01, Surface DebrisBT4-12 through BT4-15, Surface Debris Areas - BT4-8 through BT4-11, Disposalareas identified during design or implementation: - BT4-1 through BT4-7 and


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munitions debris and possibly OE. Historical aerial photographs show areafield investigation of these areas indicated that both areas containedEvaluation and were labeled BT29-01 and BT29-02. Information gathered duringdisposal areas were identified in Section 29 during the RCWM and OE Hazardthermite incendiary devices. This area was labeled BT9-01. Section 29: Twoedge of the area. The slag was identified as potentially resulting from burninglocation, a small amount of slag and charred soil was noted along the northconducted flame-thrower tests in this area. During a field walk of thispattern of burn marks. Some historical references indicate that the Armyactivity starting in 1949 and appears on aerial photos as a graded area with aidentified in the north central portion of Section 9. This area has visiblein the northeast quadrant of Section 4. Section 9: One debris area wasalong the railroad tracks and near the previous storage areas and salvage yardbackfilling. The remaining areas were surface debris areas located primarily1950s. Generally, debris was placed in the trenches and burned prior totrenches were used for disposal of solid waste from the mid-1940s through theof the areas, BT4-8 through BT4-11, were identified as disposal trenches. Theof revegetation work in Section 4 and were labeled BT4-01 through BT4-14. Fourdebris and areas of charred soil. These areas were identified during completionSection 4 containing metallic remnants of incendiary munitions, miscellaneouspresence of munitions debris. Section 4: Fourteen areas were identified inin these areas. The areas were added to the Burial Trenches project due to theremoval of the railroad tracks, several burnt munitions items were discoveredmounds of dark material piled along the tracks at these locations. Duringthe Old Toxic Storage Yard. Historical photographs from the mid-1950s showthe Toxic Storage Yard project while removing the railroad tracks leading toinclusion in the Burial Trenches project. These areas were identified duringmunitions debris areas were identified in Section 6 (BT6-01 and BT6-02) forBT32-11 revealed layers of charred soil and munitions debris. Section 6: Twophotographs show area BT32-11 active starting in 1950. Field investigation atindicated the presence of munitions debris and possibly OE. Historical aeriallabeled BT32-11. Information gathered during field investigation of this areaidentified in Section 32 during the RCWM and OE Hazard Evaluation and waspits. This area was labeled BT32-10. One additional disposal area wasindicate that the pit was used in similar fashion to the other Section 32 burnlocation, appearance, and dates of activity based on aerial photography reviewremediation areas. Although no written history was located for this pit, therevealed the presence of munitions debris at the surface, typical of nearbySection 32 in the vicinity of the ROD-identified burn pits. A field inspectionareas. An additional burn pit was located in the west central portion ofdebris and charred soil similar to the debris present in the ROD-identifiedremediation. Field reconnaissance of these areas identified surface munitions32 in close proximity to the burning pits identified in the ROD forfield investigations. These areas are located in the western portion of Sectionalso identified for remediation (BT32-1 through BT32-9) based on the designincorporate all visible munitions debris. Section 32: Nine new areas weredesign boundaries for areas ESA-2a1 through ESA-2a7 and ESA-2c were modified tobelow. Original ROD-identified areas: Based on the field reconnaissance,discussion of remediation areas added in each section is providedmunitions debris was removed to meet the performance-based requirement. Awas then ripped to a depth of 18 inches and inspected again. Any residualexcavation and any additional munitions debris identified was removed. The areacomplete removal of munitions debris, each area was visually inspected afterremediation depth was changed to 6 inches for surface debris areas. To ensureareas. Based on these findings, the munitions debris and associated soil designin Section 32. No debris was found deeper than 4 inches in any of the debristhe debris was expected to be the greatest. Sixteen excavations were completed


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Rail Yard and North Plants areas have been other sources of contaminant(Army) and Shell trenches in Section 36, and the former Basin F. The Motor Poolchemical sewer, the South Plants tank farm and production area, the Complexgroundwater have occurred from Basin A and the Lime Basins, the South Plantsthe groundwater plumes suggest that the greatest contaminant releases to themanufacturing complexes were located. The characteristics and locations ofexceptions are noted, particularly where burial trenches, disposal basins, ortend to occur in soil within five feet of the ground surface, althoughtransport, and waste disposal areas. The highest contaminant concentrationsthe greatest variety of contaminants are located in the central manufacturing,chemical warfare agent byproducts. The areas with the highest levels and/orgroundwater in these areas are organochlorine pesticides, solvents, metals, andComplex (Army) and Shell Trenches. The primary contaminants found in soil andPits, and the chemical sewers), Basins A and F, the Lime Basins, and theidentified in South Plants (the central processing area, Hex Pit, Buried M-1groundwater plumes, and 798 structures. The most highly contaminated areas werewithin the On-Post OU included approximately 3,000 acres of soil, 15ongoing and is scheduled for completion in 2011. The contaminated areas(NPL) site. Implementation of the remedy for the remaining 17.2 square miles iscleanup requirements and are no longer part of the National Priorities ListJanuary 2004, 9.4 square miles of the On-Post OU have been determined to meetaddresses contamination within the approximately 27 square miles of RMA. As ofOff-Post OU addresses contamination north and northwest of RMA. The On-Post OUStructure: The On-Post Operable Unit (OU) is one of two OUs at RMA. The(ESD) addressing OU 3 was completed in July 2004. OU3 North Plantsstockpile was designated BT4-15. An Explanation of Significant DifferencesHazardous Waste Landfill (HWL). Because the debris originated in Section 4, theadded to the Burial Trenches project and the debris was disposed at theremoved and stockpiled in Section 35. Removal of the stockpile was subsequentlySection 4, railroad ballast containing inert munitions debris was identified,potential agent area. Section 35: During USFWS revegetation activities inthe Burial Trenches project to allow complete ROD 3X certification for thethe required agent screening work. Removal of this surface debris was added toasphalt paving, curb and gutter, abandoned utilities, etc.), which inhibitedwork, the remediation Subcontractor encountered a number of obstacles (e.g.,agent screening to remediate the area. During completion of agent screeningas a potential agent contamination area and was scheduled for soil ripping withnortheast corner of the area. This portion of Borrow Area 10 was designateddemilitarization of GB- and VX-containing munitions occurred in or around thebottles. The site history indicates that from the mid-1960s to early 1970s,storage of chemical agents contained in 55-gallon drums, munitions, and samplefor use around 1953. The area was used until the mid-1970s, primarily forArea 10 is part of the New Toxic Storage Yard (NTSY). The NTSY was constructedreinforced concrete railroad loading dock to the south. This portion of BorrowBA10, is bounded by 8th Avenue to the north, F Street to the east, and adebris removal and added to the Burial Trenches project. The area, designatedArea 10, located in the northeast corner of Section 31, was identified fordisposal activities conducted at ESA-2c. Section 31: A portion of Borrowbomblets. The debris in this area is consistent with debris kickout fromarea, labeled BT30-01, contained munitions debris including remnants of M125the surface area surrounding ESA-2c was identified as a potential OE area. Thiswithin the pit. Section 30: As part of the RCWM and OE Hazard Evaluation,investigation at BT29-01 revealed charred debris and munitions componentsHistorical aerial photographs show area BT29-02 active starting in 1956. Fieldbombs. The munitions had been burned in the trench as part of disposal.components of M50 4-pound incendiary munitions, M23A1 and 500-pound clusterBT29-01 active starting in 1950. Field investigation at BT29-01 revealed


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Basins continued to receive aqueous waste from South Plants, from both Army and1943, the Army stopped putting lime slurry into the Lime Basins. The Limeheavy metals, including As. After Lewisite manufacturing ceased in Novemberprecipitation process produced a lime sludge that contained high levels ofprecipitate metals and reduce the As concentration in the wastewater. Thisgravity flow into Basin A, just north of the Lime Basins. The lime was used toprior to discharge to the unlined Lime Basins and subsequently discharged bywastewater from the production of Lewisite was routinely treated with timereceive other aqueous waste from South Plants. Through November 1943,Basins were designed to remove arsenic (As) from South Plants wastewater and toentire Lime Basins project area occupies approximately 5 acres. The Limeconstructed in 1942, each approximately 15 feet deep and 1 acre in size. TheAvenue along the southwestern portion of Section 36. Three basins werecompleted in September 2004. The Lime Basins are located just north of 7thPlants. An Explanation of Significant Differences addressing OU 3 wasRI, a contaminated soil corridor was defined for the chemical sewers in Northchemical sewers. Based on sampling results from the South Plants chemical sewerworst-case estimate of contaminated soil associated with the North PlantsPlants along vitrified clay pipe sewer segments were used to provide aBuilding 1727 sump. However, soil samples collected in Section 36 and in Southlines in the North Plants complex or the steel trunk lines downstream of theareas. Sampling was not conducted along the cast iron pipe chemical sewergenerally attributable to windblown contaminants from other sourcerisk area. Dieldrin is a prevalent contaminant in surface soils at RMA,dieldrin in surface soils were sufficient to result in delineation of a biotaBuilding 1501 (NPSA-3) did not exceed the HHE SEC; however, concentrations ofsuspected to be contaminated with arsenic. Soil samples collected aroundBuilding 1703 was used as an ammunition demilitarization facility and wascontained concentrations of arsenic and dieldrin in excess of the HHE SEC.samples collected from the drainage areas around Building 1703 (NPSA-6)demilitarization of adamsite, an arsenic-containing chemical agent. Soilevaluation criteria (SEC). Building 1611 was used in 1983 and 1984 forconcentrations of arsenic in excess of the human health exceedance (HHE) siteareas around Building 1611 (North Plants Study Area [NPSA]-5) containeddrainage ditches. Soil samples collected from the surface soil and drainagearound the buildings to target investigation of potential spill areas andsoil sampling in the areas surrounding the buildings. Samples were locatedInvestigation (RI) of the North Plants area was conducted in 1988 and includedinterceptor line running between South Plants and Basin F. The Remedial12-inch steel line was added to transport the waste to the chemical seweriron pipe conveyed the waste to Basin A for disposal. Sometime prior to 1961, afrom the Building 1727 sump to the disposal basins. Initially, a 6-inch castchemical agent contamination. Two pressurized discharge lines transported wastewere added to the liquid waste collected in the sump to neutralize potentialmanufacturing facilities to the Building 1727 sump. Caustic solution and waternetwork was constructed as part of the original complex and connected various1727 sump, and trunk lines from the sump to the disposal basins. The collectionconsisting of three major parts: a cast iron collection network, the BuildingNorth Plants manufacturing facility included a network of chemical sewerstransfer, store, and demilitarize/neutralize chemicals and munitions. Thefrom 1964 to 1970. The facilities were also used by the Army to containerize,intermittently until 1957. The Army redistilled low purity GB intermittentlySection 25 in T2S, R67W. Production of GB began in April 1953 and continuedcomplex covers approximately 90 acres located within the central part ofto produce sarin (GB), Isopropyl Methylphosphonofluoridate. The North Plantsby the Army from 1950 to 1953 as a chemical nerve agent manufacturing facilityreleases to the groundwater. The North Plants was designed and constructed


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with detections of OCPs in most samples. One sample had OCP concentrationswere collected from 8 locations. Sample results were similar to the RI resultsthe Lime Basins. In 1990, to support design of the slurry wall, 16 soil samplesaround the basins, groundwater extraction system, and soil vegetative cap overmaterial from outside the basins to within the basin area, a subsurface barriermigration pathways. The IRA for the Lime Basins included relocation of sludgewere designed to mitigate major active sources of potential contaminants tocaptured and treated at the Basin A Neck treatment facility. Various IRAsGroundwater flow from the Lime Basins is to the northwest and is currentlyAs concentrations are significantly higher in the downgradient wells.groundwater upgradient from the Lime Basins in the South Plants plume; however,volatile organic compounds (VOCs). These contaminants are also present inpresent in the groundwater in the Lime Basins area include OCPs, As andfeet depth) is currently within the groundwater aquifer. Major contaminantsportion of the Lime Basins, the bottom 2 to 3 feet of waste (approximately 15the Lime Basins are a source of groundwater contamination. In the southernthan the HH SEC. Groundwater sampling conducted during the RI indicated thatHH SEC. In addition, As was detected in two samples at concentrations greaterconfirmed the RI sample results indicating OCP concentrations greater than theyielding 35 samples were located in the Lime Basins area. The FS resultsof the Feasibility Study (FS) Soil Volume Refinement Program. Ten boringsCriteria (HH SEC). In 1994, additional soil samples were collected as partsample had OCP concentrations greater than the Human Health Site Evaluationwere similar to the RI results with detections of OCPs in most samples. Oneborings at 5- and 10-ft depths to further characterize the area. Sample resultscompleted to determine depth to bedrock. Soil samples were collected from those1990, to support design of the Interim Response Action (IRA), soil borings wereand vertical extents of contamination associated with the Lime Basins. Inadditional soil sampling and field observations to further define the lateralReport (CAR). The Phase II program began in the summer of 1987 and consisted ofobservations. Results are presented in the Phase I Contamination Assessmentperformed in the spring of 1985 and included soil sampling and fieldInvestigation (RI) for the Lime Basins was conducted in two phases. Phase I wasleveled them off with the existing ground surface. The RemedialIn 1974 or 1975, the Army bulldozed the embankments of the Lime Basins andneutralizing agent for GB and was routinely used by the Army for that purpose.in the Lime Basins. Sodium hydroxide has been shown to be an effectiveisopropyl methylphosphonate were neutralized with sodium hydroxide and disposeddiisopropyl methylphosphonate (DIMP) and/or greater than a trace amount ofreported that rejected batches of sarin with greater than three percent ofno drums of mustard were ever deposited in the Lime Basins. In addition, it isreport was later refuted by testimony from U.S. Army personnel who stated thatvolume of chemical agent material, not an actual drum. This unsubstantiatedbelieved that the mustard was neutralized, and that the term "drum" refers to ahave received more than 150 drums of mustard agent from 1959 to 1960. It wasuse and had been filled in. It was alleged that the Lime Basins also mightJuly 1974. Aerial photographs from 1975 indicate the basins were no longer inSouth Plants to the Lime Basins. Lime slurry was disposed in this manner until1963, a three-inch line was installed to transfer the lime slurry directly fromhauled lime waste from the South Plants Lime Pond to the Lime Basins. In latea slurry in the South Plants Lime Pond. Between 1955 and 1963, periodicallyacetylene production generated lime as a by-product. This lime was deposited asthe chemical sewer lines leading to Basin F. Between 1950 and 1974,and the Lime Basins for aqueous waste following the completion of Basin F andthe Lime Basins. In January 1957, both the Army and Shell ceased using Basin Atransported through two chemical sewers that discharged into the south side ofproductions, including pesticide production wastewater. These wastes were


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storage. Additional liquid retention capacity in two surface pondshazardous liquid waste into the three lined tanks at the Tank Farm for interimduring 1988 and 1989. During May 1988, the Army began transferring Basin Ffor Basin F hazardous liquid waste, sludge, and soil remediation was performedand eliminate emissions of volatile chemicals from the basin. The initial IRAthe underlying groundwater, eliminate potential adverse impacts to wildlife,conducted to prevent potential infiltration of contamination from the basins toregarding liquid and soil contamination in and under Basin F. The IRA was1988, the Army initiated an accelerated remediation to address concernscurrently captured and treated at the North Boundary Containment System. Indibromochloropropane. Groundwater flow from Basin F is to the north and isarea include chloroform, benzene, trichloroethylene, dieldrin, DIMP, andmore than 40 feet. Major contaminants present in the groundwater in the Basin Fcontamination. Depth to groundwater in the Basin F area ranges from 20 feet toconducted during the RI indicated that Basin F is a source of groundwaterall conveyance systems into the basin on July 14, 1982. Groundwater samplingeastern basin perimeter. The basin was preliminarily closed by the removal of4) construction of a north-south surface runoff interceptor ditch along theinstallation of a dike in the basin separating the ’wet’ from ’dry’ areas; andpipe trickler system in the basin to enhance natural solar evaporation; 3)connection to Basin F from South Plants and North Plants; 2) construction of ameasures included: 1) removal of the chemical sewer trunk line and lateralgenerating additional liquid waste volumes contained in the basin. Theseinfiltrating both ground and surface waters, and prevent surface runoff fromthe remaining liquids in the basin, prevent sewer-transported flows fromArmy implemented a series of measures designed to accelerate the evaporation oftermination of all waste discharges to the chemical sewer in December 1981, theand was taken directly to the Deep Well Injection Facility. Following thewas completed, liquid waste discharge from the chemical sewer bypassed Basin Fof unfilterable bacterial organisms in the contents of the effluent. When F-1was added to accelerate settling and minimize the time available for the growthcreating a 1-million-gallon surge basin identified as F-1. This modificationArmy constructed an earthen fill dike across the southeast corner of Basin F,been damaged by severe wave action within the basin. In the summer of 1964, therepairs were made to the liner and protective soil layer of Basin F, which hadof 1957, Basins A and C were used for temporary liquid waste containment whilesite were used for this purpose, with one exception. In the spring and summercontaminated liquid wastes. After December 1956, no other evaporative basins onbetween December 1956 and December 1981 for the solar evaporation ofManufacturing Area and the Sarin (GB) complex. Basin F was used continuouslyArmy and Shell chemical operations, including the Chlorine Plant, Shellmillion gallons. The impoundment was to be used to contain liquid wastes froma maximum depth of approximately 12 feet, and a capacity of approximately 243asphalt membrane. The impoundment had a surface area of approximately 93 acres,asphalt membrane. A 1-foot-thick soil protective layer was placed on top of theconstructing a dike around a natural depression and lining it with a 3/8-inchdepression located immediately north of Basin C. The impoundment was created bysurface impoundment occurred between July and December 1956 in a naturalwork was completed in 1993. Basin F: Construction of the Basin F (NCSA-3)vegetative cap was constructed over the entire Lime Basins project area. Thiswere constructed to route drainage around the south and east sides. Thediscovery, only the minimum 18-inch thick vegetative cap and storm sewer linechemically configured ordnance if excavation continued. As a result of thismunitions debris was discovered indicating the potential for encounteringconstruction of the slurry wall and groundwater extraction system at the site,specified a slurry wall as the subsurface barrier. During excavation forgreater than the HH SEC. The final design for implementation of the IRA


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For detailed financial records, contact EDR for a Site Report.:

Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: EPA Fund-FinancedPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 10/15/84Date Completed: / /Date Started: PROPOSAL TO NATIONAL PRIORITIES LISTAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: SITEWIDEOperable Unit: Low priority for further assessmentPriority Level: 06/01/81Date Completed: / /Date Started: PRELIMINARY ASSESSMENTAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 07/01/75Date Completed: / /Date Started: DISCOVERYAction: 001Action Code:

CERCLIS Assessment History:

completed in October 2005.cover. A Record of Decision Amendment addressing Operable Unit 3 (OU3) wasBasin F surface area was covered with a clay cover, topsoil, and vegetativedesignated contaminated material had been consolidated into the Wastepile, thehalted at a depth of 6.5 feet below the asphalt liner elevation. After thecontamination down to depths approaching 40 feet, Basin F soil removal wasobservations. However, because it was impractical to remove all of thecontaminated materials were removed from Basin F varied depending on fieldand turning, then transferred to the Basin F Wastepile. The depth to whichsludge, overburden, and asphalt liner were stripped, partially dried by piling1995. Approximately 480,000 cy of contaminated soil, crystalline sludge,incinerated on site by Submerged Quench Incineration between 1993 andthe liquid beyond the initial estimate. The hazardous liquid was subsequentlyasphalt basin floor, and seasonal precipitation which increased the volume ofunexpected liquids found perched between a false bottom (salt lenses) and the(double-lined impoundment identified as Ponds A and B) was used because of


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06/04/87Date Completed: 04/04/85Date Started: FEDERAL FACILITY REMEDIAL INVESTIGATION/FEASIBILITY STUDYAction: 004Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: EPA Fund-FinancedPrimary Responsibility: PERM TREATMENT SYSTEMS ARMYOperable Unit: Not reportedPriority Level: 05/01/86Date Completed: 04/01/86Date Started: HEALTH ASSESSMENTAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal EnforcementPrimary Responsibility: PERM TREATMENT SYSTEMS ARMYOperable Unit: Not reportedPriority Level: 10/31/85Date Completed: 04/15/85Date Started: REMEDIAL INVESTIGATION/FEASIBILITY STUDY WORKPLAN APPROVAL BY HQAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal EnforcementPrimary Responsibility: PERM TREATMENT SYSTEMS ARMYOperable Unit: Not reportedPriority Level: 06/30/85Date Completed: 12/31/84Date Started: COMMUNITY INVOLVEMENTAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: SITEWIDEOperable Unit: Higher priority for further assessmentPriority Level: 12/01/84Date Completed: / /Date Started: SITE INSPECTIONAction: 001Action Code:


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PrimaryPlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 10/20/87Date Completed: / /Date Started: REMEDIAL DESIGN/REMEDIAL ACTION NEGOTIATIONSAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: EPA Fund-FinancedPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 07/22/87Date Completed: / /Date Started: FINAL LISTING ON NATIONAL PRIORITIES LISTAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal EnforcementPrimary Responsibility: PERM TREATMENT SYSTEMS ARMYOperable Unit: Not reportedPriority Level: 06/04/87Date Completed: / /Date Started: RECORD OF DECISIONAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: PERM TREATMENT SYSTEMS ARMYOperable Unit: Admin Record Compiled for a Remedial EventPriority Level: 06/04/87Date Completed: 06/04/87Date Started: ADMINISTRATIVE RECORDSAction: 002Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: PERM TREATMENT SYSTEMS ARMYOperable Unit: Not reportedPriority Level:


TC3674217.1s Page 47



Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: PERM TREATMENT SYSTEMS ARMYOperable Unit: Not reportedPriority Level: 03/08/88Date Completed: 07/01/87Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 003Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 6 BSN F LIQUIDS & SLUDGESOperable Unit: Higher priority for further assessmentPriority Level: 03/08/88Date Completed: 06/15/87Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 002Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 02/09/88Date Completed: 10/30/87Date Started: REMEDIAL DESIGN/REMEDIAL ACTION NEGOTIATIONSAction: 002Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 02/01/88Date Completed: 05/08/87Date Started: SECTION 107 LITIGATIONAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator:


TC3674217.1s Page 48



007Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 4 ABANDONED WELL CLOSUREOperable Unit: Higher priority for further assessmentPriority Level: 06/21/88Date Completed: 01/15/88Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 004Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal EnforcementPrimary Responsibility: CHEMICAL SALESOperable Unit: Not reportedPriority Level: 03/31/88Date Completed: 10/27/87Date Started: REMEDIAL INVESTIGATION/FEASIBILITY STUDY WORKPLAN APPROVAL BY HQAction: 002Action Code:





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SITEWIDEOperable Unit: Not reportedPriority Level: 11/08/88Date Completed: 05/13/88Date Started: REMEDIAL DESIGN/REMEDIAL ACTION NEGOTIATIONSAction: 009Action Code:


Not reportedAction Anomaly: EmergencyUrgency Indicator: PrimaryPlanning Status: EPA Fund-FinancedPrimary Responsibility: SITEWIDEOperable Unit: StabilizedPriority Level: 09/30/88Date Completed: 04/18/86Date Started: REMOVALAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 9 FUGITIVE DUST SPPRSSNOperable Unit: Higher priority for further assessmentPriority Level: 08/12/88Date Completed: 11/15/87Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 002Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 2 UPGRADE 3 BNDRY, GW SYSTOperable Unit: Higher priority for further assessmentPriority Level: 07/21/88Date Completed: 12/31/86Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 07/07/88Date Completed: 04/15/88Date Started: REMEDIAL DESIGN/REMEDIAL ACTION NEGOTIATIONSAction:


TC3674217.1s Page 50



Not reportedUrgency Indicator: PrimaryPlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 02/03/89Date Completed: 06/30/88Date Started: REMEDIAL DESIGN/REMEDIAL ACTION NEGOTIATIONSAction: 011Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 2 UPGRADE 3 BNDRY, GW SYSTOperable Unit: Higher priority for further assessmentPriority Level: 12/12/88Date Completed: 09/07/88Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 005Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal EnforcementPrimary Responsibility:


TC3674217.1s Page 51








Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 02/17/89Date Completed: / /Date Started: FEDERAL INTERAGENCY AGREEMENTAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 02/17/89Date Completed: 12/09/87Date Started: SECTION 107 LITIGATIONAction: 002Action Code:


Not reportedAction Anomaly:


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09/18/89Date Completed: 02/06/89Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 006Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 3 BASIN F GW SYSTEMOperable Unit: Higher priority for further assessmentPriority Level: 08/11/89Date Completed: 04/17/89Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 008Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 7 BLDG. 1727 SUMPOperable Unit: Higher priority for further assessmentPriority Level: 06/19/89Date Completed: 12/09/88Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 005Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 6 BSN F LIQUIDS & SLUDGESOperable Unit: Higher priority for further assessmentPriority Level: 05/08/89Date Completed: 01/29/88Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 003Action Code:


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Federal FacilitiesPrimary Responsibility: PERM TREATMENT SYSTEMS ARMYOperable Unit: Low priority for further assessmentPriority Level: 12/09/89Date Completed: 07/01/87Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 7 BLDG. 1727 SUMPOperable Unit: Higher priority for further assessmentPriority Level: 11/27/89Date Completed: 07/31/89Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 007Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 2 UPGRADE 3 BNDRY, GW SYSTOperable Unit: Higher priority for further assessmentPriority Level: 11/16/89Date Completed: 07/20/89Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 009Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 12 HOT SPOTSOperable Unit: Not reportedPriority Level: 10/11/89Date Completed: 02/15/85Date Started: FEDERAL FACILITY REMEDIAL INVESTIGATION/FEASIBILITY STUDYAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 5 BASIN A NECK GW SYSTEMOperable Unit: Not reportedPriority Level:


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Not reportedAction Anomaly: Not reportedUrgency Indicator: AlternatePlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 02/26/90Date Completed: 08/16/89Date Started: REMEDIAL DESIGN/REMEDIAL ACTION NEGOTIATIONSAction: 014Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 4 ABANDONED WELL CLOSUREOperable Unit: Higher priority for further assessmentPriority Level: 02/23/90Date Completed: 09/20/88Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 006Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 12/31/89Date Completed: / /Date Started: Special Notice IssuedAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 11 ASBESTOSOperable Unit: Higher priority for further assessmentPriority Level: 12/31/89Date Completed: 06/28/88Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 004Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status:


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Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 RAIL CLASSOperable Unit: Admin Record Compiled for a Remedial EventPriority Level: 02/26/90Date Completed: 02/26/90Date Started: ADMINISTRATIVE RECORDSAction: 005Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 12 HOT SPOTSOperable Unit: Admin Record Compiled for a Remedial EventPriority Level: 02/26/90Date Completed: 10/11/89Date Started: ADMINISTRATIVE RECORDSAction: 003Action Code:







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08/16/89Date Started: REMEDIAL DESIGN/REMEDIAL ACTION NEGOTIATIONSAction: 017Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12-MOTOR POOLOperable Unit: Not reportedPriority Level: 02/26/90Date Completed: / /Date Started: RECORD OF DECISIONAction: 004Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 RAIL CLASSOperable Unit: Not reportedPriority Level: 02/26/90Date Completed: / /Date Started: RECORD OF DECISIONAction: 003Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 12 HOT SPOTSOperable Unit: Not reportedPriority Level: 02/26/90Date Completed: / /Date Started: RECORD OF DECISIONAction: 002Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12-MOTOR POOLOperable Unit: Admin Record Compiled for a Remedial EventPriority Level: 02/26/90Date Completed: 02/26/90Date Started: ADMINISTRATIVE RECORDSAction: 004Action Code:


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SITEWIDEOperable Unit: Not reportedPriority Level: 05/03/90Date Completed: 08/16/89Date Started: REMEDIAL DESIGN/REMEDIAL ACTION NEGOTIATIONSAction: 019Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 LIME SETOperable Unit: Not reportedPriority Level: 03/20/90Date Completed: / /Date Started: RECORD OF DECISIONAction: 005Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 LIME SETOperable Unit: Admin Record Compiled for a Remedial EventPriority Level: 03/20/90Date Completed: 03/20/90Date Started: ADMINISTRATIVE RECORDSAction: 006Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: AlternatePlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 03/20/90Date Completed:


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Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 ARMY TRENCHESOperable Unit: Admin Record Compiled for a Remedial EventPriority Level: 05/03/90Date Completed: 05/03/90Date Started: ADMINISTRATIVE RECORDSAction: 007Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 SHELL TRENCHESOperable Unit: Admin Record Compiled for a Remedial EventPriority Level: 05/03/90Date Completed: 05/03/90Date Started: ADMINISTRATIVE RECORDSAction: 008Action Code:






Not reportedAction Anomaly: Not reportedUrgency Indicator: AlternatePlanning Status: Federal EnforcementPrimary Responsibility:


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Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 13 S.PLANTS LIQ WASTE TRTMOperable Unit: Not reportedPriority Level: 05/14/90Date Completed: / /Date Started: RECORD OF DECISIONAction: 008Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: DelayedPlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 05/14/90Date Completed: 11/26/89Date Started: REMEDIAL DESIGN/REMEDIAL ACTION NEGOTIATIONSAction: 021Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 ARMY TRENCHESOperable Unit: Not reportedPriority Level: 05/03/90Date Completed: / /Date Started: RECORD OF DECISIONAction: 006Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 SHELL TRENCHESOperable Unit: Not reportedPriority Level: 05/03/90Date Completed: / /Date Started: RECORD OF DECISIONAction: 007Action Code:




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10/24/90Date Completed: 11/13/89Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 009Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 3 BASIN F GW SYSTEMOperable Unit: Higher priority for further assessmentPriority Level: 10/24/90Date Completed: 11/06/89Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 008Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: CHEMICAL SALESOperable Unit: Not reportedPriority Level: 10/19/90Date Completed: 10/27/87Date Started: FEDERAL FACILITY REMEDIAL INVESTIGATIONAction: 001Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 10 SANITARY SEWER REMEDYOperable Unit: Higher priority for further assessmentPriority Level: 05/24/90Date Completed: 07/31/89Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 010Action Code:


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PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12-MOTOR POOLOperable Unit: Not reportedPriority Level: 01/25/91Date Completed: 01/09/90Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 012Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 1 OFF POST (N) GW SYSTEMOperable Unit: Higher priority for further assessmentPriority Level: 01/25/91Date Completed: 08/03/89Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 011Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 ARMY TRENCHESOperable Unit: Not reportedPriority Level: 12/31/90Date Completed: 07/05/90Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 017Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 2 UPGRADE 3 BNDRY, GW SYSTOperable Unit: Higher priority for further assessmentPriority Level: 12/12/90Date Completed: 04/05/90Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 011Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 5 BASIN A NECK GW SYSTEMOperable Unit: Higher priority for further assessmentPriority Level:


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Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA2 NWBCSOperable Unit: Not reportedPriority Level: 04/19/91Date Completed: 05/29/90Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 015Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA HYDRAZINE FACILITYOperable Unit: Higher priority for further assessmentPriority Level: 03/19/91Date Completed: 03/17/89Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 007Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 SHELL TRENCHESOperable Unit: Not reportedPriority Level: 03/13/91Date Completed: 08/21/90Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 019Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 RAIL CLASSOperable Unit: Not reportedPriority Level: 01/25/91Date Completed: 03/05/90Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 013Action Code:




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Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 13 S.PLANTS LIQ WASTE TRTMOperable Unit: Higher priority for further assessmentPriority Level: 06/28/91Date Completed: 08/10/90Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 018Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: EPA Fund-FinancedPrimary Responsibility: IRA12 STF PLUMEOperable Unit: Not reportedPriority Level: 06/06/91Date Completed: / /Date Started: RECORD OF DECISIONAction: 009Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 STF PLUMEOperable Unit: Admin Record Compiled for a Remedial EventPriority Level: 06/06/91Date Completed: 06/06/91Date Started: ADMINISTRATIVE RECORDSAction: 010Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 9 FUGITIVE DUST SPPRSSNOperable Unit: Not reportedPriority Level: 05/31/91Date Completed: 05/31/91Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 019Action Code:



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Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: State, Fund FinancedPrimary Responsibility: PERM TREATMENT SYSTEMS ARMYOperable Unit: Not reportedPriority Level: 09/30/91Date Completed: 02/12/88Date Started: STATE SUPPORT AGENCY COOPERATIVE AGREEMENTAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: CHEMICAL PROCESS RELATED ACTOperable Unit: Not reportedPriority Level: 09/05/91Date Completed: / /Date Started: RECORD OF DECISIONAction: 010Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: CHEMICAL PROCESS RELATED ACTOperable Unit: Admin Record Compiled for a Remedial EventPriority Level: 09/05/91Date Completed: 09/05/91Date Started: ADMINISTRATIVE RECORDSAction: 011Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 LIME SETOperable Unit: Not reportedPriority Level: 08/30/91Date Completed: 04/04/90Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 014Action Code:


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PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: CHEMICAL PROCESS RELATED ACTOperable Unit: Not reportedPriority Level: 10/28/91Date Completed: 09/03/91Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 021Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 RAIL CLASSOperable Unit: Not reportedPriority Level: 10/25/91Date Completed: 12/11/90Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 015Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA6 BF LIQOperable Unit: Not reportedPriority Level: 10/17/91Date Completed: 06/20/90Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 016Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 STF PLUMEOperable Unit: Not reportedPriority Level: 10/16/91Date Completed: 06/28/91Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 020Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA2 NWBCSOperable Unit: Not reportedPriority Level:


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Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 10/05/92Date Completed: / /Date Started: Lodged By DOJAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12-MOTOR POOLOperable Unit: Not reportedPriority Level: 07/14/92Date Completed: 01/02/91Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 016Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 07/13/92Date Completed: 12/05/91Date Started: FEDERAL FACILITY FIVE YEAR REVIEWAction: 003Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 SHELL TRENCHESOperable Unit: Not reportedPriority Level: 12/15/91Date Completed: 04/15/91Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 018Action Code:




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Not reportedAction Anomaly: Not reportedUrgency Indicator: DelayedPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 10 SANITARY SEWER REMEDYOperable Unit: Higher priority for further assessmentPriority Level: 01/27/93Date Completed: 07/10/90Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 013Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: WASTE MGMT STG/DISPOSALOperable Unit: Not reportedPriority Level: 01/15/93Date Completed: / /Date Started: RECORD OF DECISIONAction: 011Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: CHEMICAL PROCESS RELATED ACTOperable Unit: Not reportedPriority Level: 11/18/92Date Completed: / /Date Started: Explanation Of Significant DifferencesAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA HYDRAZINE FACILITYOperable Unit: Higher priority for further assessmentPriority Level: 11/12/92Date Completed: 11/25/91Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 025Action Code:



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08/05/91Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 020Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 1 OFF POST (N) GW SYSTEMOperable Unit: Higher priority for further assessmentPriority Level: 05/21/93Date Completed: 09/10/91Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 021Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: OFFPOSTOperable Unit: Admin Record Compiled for a Remedial EventPriority Level: 03/29/93Date Completed: 02/15/85Date Started: ADMINISTRATIVE RECORDSAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 02/12/93Date Completed: 09/11/92Date Started: CONSENT DECREEAction: 001Action Code:


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IRA 13 S.PLANTS LIQ WASTE TRTMOperable Unit: Admin Record Compiled for a Remedial EventPriority Level: 09/30/93Date Completed: 05/14/90Date Started: ADMINISTRATIVE RECORDSAction: 009Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: PCBOperable Unit: Not reportedPriority Level: 09/23/93Date Completed: / /Date Started: RECORD OF DECISIONAction: 013Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: USTSOperable Unit: Not reportedPriority Level: 09/23/93Date Completed: / /Date Started: RECORD OF DECISIONAction: 012Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 LIME SETOperable Unit: Not reportedPriority Level: 09/23/93Date Completed: 10/01/91Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 022Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: AlternatePlanning Status: Federal FacilitiesPrimary Responsibility: IRA 13 S.PLANTS LIQ WASTE TRTMOperable Unit: Higher priority for further assessmentPriority Level: 09/23/93Date Completed:


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Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: CHEMICAL PROCESS RELATED ACTOperable Unit: Not reportedPriority Level: 02/14/94Date Completed: 07/15/93Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 024Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: CHEMICAL PROCESS RELATED ACTOperable Unit: Not reportedPriority Level: 01/28/94Date Completed: 12/01/93Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 026Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: CHEMICAL PROCESS RELATED ACTOperable Unit: Not reportedPriority Level: 10/15/93Date Completed: 05/01/93Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 023Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 12 HOT SPOTSOperable Unit: Not reportedPriority Level: 09/30/93Date Completed: / /Date Started: RECORD OF DECISION AMENDMENTAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility:


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Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: USTSOperable Unit: Not reportedPriority Level: 11/15/94Date Completed: 09/24/93Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 025Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 10/16/94Date Completed: 10/16/94Date Started: FEDERAL FACILITY COMMUNITY INVOLVEMENTAction: 001Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 05/10/94Date Completed: 01/14/92Date Started: ENGINEERING EVALUATION/COST ANALYSISAction: 001Action Code:




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10/16/95Date Completed: 01/02/93Date Started: ADMINISTRATIVE RECORDSAction: 012Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA6 BF LIQOperable Unit: Not reportedPriority Level: 07/03/95Date Completed: 03/21/91Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 017Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: PCBOperable Unit: Not reportedPriority Level: 01/30/95Date Completed: 12/09/93Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 027Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 STF PLUMEOperable Unit: Not reportedPriority Level: 01/09/95Date Completed: 11/15/91Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 023Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA12 ARMY TRENCHESOperable Unit: Not reportedPriority Level: 01/09/95Date Completed: 11/30/90Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 014Action Code:


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Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: OFFPOSTOperable Unit: Not reportedPriority Level: 03/13/96Date Completed: 02/14/96Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 030Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: OFFPOSTOperable Unit: Not reportedPriority Level: 12/19/95Date Completed: / /Date Started: RECORD OF DECISIONAction: 016Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: OFFPOSTOperable Unit: Higher priority for further assessmentPriority Level: 12/19/95Date Completed: 02/15/85Date Started: FEDERAL FACILITY REMEDIAL INVESTIGATION/FEASIBILITY STUDYAction: 003Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: CHEMICAL PROCESS RELATED ACTOperable Unit: Not reportedPriority Level: 12/01/95Date Completed: 07/15/93Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 028Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Admin Record Compiled for a Remedial EventPriority Level:


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Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: PCBOperable Unit: Not reportedPriority Level: 08/30/96Date Completed: 03/01/95Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 034Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 06/11/96Date Completed: / /Date Started: RECORD OF DECISIONAction: 015Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: WASTE MGMT STG/DISPOSALOperable Unit: Not reportedPriority Level: 06/11/96Date Completed: 02/05/93Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 022Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Higher priority for further assessmentPriority Level: 06/11/96Date Completed: 02/15/85Date Started: FEDERAL FACILITY REMEDIAL INVESTIGATION/FEASIBILITY STUDYAction: 002Action Code:




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11/18/96Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 033Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 09/05/97Date Completed: 05/29/97Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 039Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: OFFPOSTOperable Unit: Not reportedPriority Level: 03/03/97Date Completed: 06/11/96Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 044Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: WASTE MGMT STG/DISPOSALOperable Unit: Not reportedPriority Level: 12/08/96Date Completed: 02/05/93Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 026Action Code:


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ONPOSTOperable Unit: Not reportedPriority Level: 10/01/97Date Completed: 09/01/97Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 059Action Code:








Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 09/16/97Date Completed:


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Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 12/23/97Date Completed: 10/16/97Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 047Action Code:










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Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: OFFPOSTOperable Unit: Not reportedPriority Level: 07/31/98Date Completed: 12/08/97Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 031Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 06/30/98Date Completed: 10/06/97Date Started: ALTERNATIVE DISPUTE RESOLUTIONAction: 001Action Code:








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Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 09/30/98Date Completed: 09/05/97Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 048Action Code:








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SITEWIDEOperable Unit: Not reportedPriority Level: 10/02/98Date Completed: / /Date Started: NOTICE OF INTENT TO PARTIALLY DELETEAction: 001Action Code:






Not reportedAction Anomaly: Long Term ActionUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 09/30/98Date Completed: 10/15/97Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 079Action Code:




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Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 03/10/99Date Completed: 09/19/97Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 040Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 12/15/98Date Completed: 01/05/98Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 075Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: EPA Fund-FinancedPrimary Responsibility:


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ONPOSTOperable Unit: Not reportedPriority Level: 04/20/00Date Completed: 06/29/99Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 076Action Code:










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Not reportedUrgency Indicator: Not reportedPlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 07/28/00Date Completed: 09/15/99Date Started: ALTERNATIVE DISPUTE RESOLUTIONAction: 002Action Code:








Not reportedAction Anomaly: Long Term ActionUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility:


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Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: USTSOperable Unit: Not reportedPriority Level: 08/23/00Date Completed: 03/31/95Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 033Action Code:










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Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 09/29/00Date Completed: 03/03/99Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 117Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: IRA 11 ASBESTOSOperable Unit: Not reportedPriority Level: 09/29/00Date Completed: 01/01/90Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 010Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 09/28/00Date Completed:


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Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: PERM TREATMENT SYSTEMS ARMYOperable Unit: Not reportedPriority Level: 10/02/00Date Completed: 02/28/90Date Started: TECHNICAL ASSISTANCE GRANTAction: 001Action Code:








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Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 01/31/01Date Completed: 07/06/00Date Started: FEDERAL FACILITY FIVE YEAR REVIEWAction: 002Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 11/07/00Date Completed: / /Date Started: Explanation Of Significant DifferencesAction: 012Action Code:





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Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 04/01/02Date Completed: 01/20/99Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 060Action Code:










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Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status:


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082Action Code:






Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: EPA Fund-FinancedPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 09/23/02Date Completed: / /Date Started: NOTICE OF INTENT TO PARTIALLY DELETEAction: 002Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: EPA In-HousePrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 09/12/02Date Completed: 10/11/00Date Started: RISK/HEALTH ASSESSMENTAction: 001Action Code:



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Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal EnforcementPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 12/09/02Date Completed: 09/24/01Date Started: ALTERNATIVE DISPUTE RESOLUTIONAction: 003Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 09/26/02Date Completed: 05/01/00Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction:


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Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 04/15/03Date Completed: / /Date Started: RECORD OF DECISION AMENDMENTAction: 002Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: EPA Fund-FinancedPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 01/21/03Date Completed: 10/02/98Date Started: PARTIAL NATIONAL PRIORITIES LIST DELETIONAction: 001Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility:


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Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 09/29/03Date Completed: / /Date Started: TECHNICAL ASSISTANCEAction: 001Action Code:







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Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: EPA Fund-FinancedPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 01/15/04Date Completed: 07/28/03Date Started: PARTIAL NATIONAL PRIORITIES LIST DELETIONAction: 003Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: EPA Fund-FinancedPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 01/15/04Date Completed: 07/28/03Date Started: PARTIAL NATIONAL PRIORITIES LIST DELETIONAction: 002Action Code:




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Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Final RA ReportPriority Level: 09/30/04Date Completed: 03/21/01Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 120Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Final RA ReportPriority Level: 09/30/04Date Completed: 04/28/00Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 070Action Code:








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Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Final RA ReportPriority Level: 09/30/04Date Completed: 10/10/01Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 088Action Code:




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Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Final Remedy Selected at SitePriority Level: 10/20/05Date Completed: / /Date Started: RECORD OF DECISION AMENDMENTAction: 003Action Code:




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ONPOSTOperable Unit: Not reportedPriority Level: 05/04/06Date Completed: / /Date Started: Explanation Of Significant DifferencesAction: 014Action Code:






Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Final RA ReportPriority Level: 03/30/06Date Completed: 08/18/03Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 100Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Final RA ReportPriority Level: 03/30/06Date Completed:


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Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Final RA ReportPriority Level: 09/21/06Date Completed: 02/19/02Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 106Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: EPA Fund-FinancedPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 07/31/06Date Completed: / /Date Started: PARTIAL NATIONAL PRIORITIES LIST DELETIONAction: 004Action Code:








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Not reportedAction Anomaly: Waste Left on SiteUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Final RA ReportPriority Level: 01/29/07Date Completed: 10/13/03Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 099Action Code:




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OFFPOSTOperable Unit: Not reportedPriority Level: 12/20/07Date Completed: 12/09/96Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 041Action Code:










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Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 12/20/07Date Completed: 02/23/05Date Started: FEDERAL FACILITY FIVE YEAR REVIEWAction: 005Action Code:










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Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 11/18/08Date Completed: / /Date Started: Explanation Of Significant DifferencesAction: 011Action Code:










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Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 01/21/09Date Completed: 10/01/07Date Started: TECHNICAL ASSISTANCEAction: 002Action Code:






Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status:


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Not reportedAction Anomaly: Waste Left on SiteUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 07/16/09Date Completed: 05/01/07Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 114Action Code:


Not reportedAction Anomaly: Long Term ActionUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 06/11/09Date Completed: 03/30/05Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 115Action Code:


Not reportedAction Anomaly: Long Term ActionUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 05/14/09Date Completed: 04/23/07Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 136Action Code:


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Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Interim RA ReportPriority Level: 01/19/10Date Completed: 12/21/01Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 078Action Code:








Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level:


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Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Interim RA ReportPriority Level: 02/22/10Date Completed: 04/12/05Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 140Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: PrimaryPlanning Status:


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Not reportedAction Anomaly: Waste Left on SiteUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 01/06/11Date Completed: 08/17/07Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 107Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: EPA Fund-FinancedPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 09/13/10Date Completed: 06/17/10Date Started: PARTIAL NATIONAL PRIORITIES LIST DELETIONAction: 005Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: EPA Fund-FinancedPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 06/17/10Date Completed: / /Date Started: NOTICE OF INTENT TO PARTIALLY DELETEAction: 006Action Code:



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07/22/10Date Started: FEDERAL FACILITY FIVE YEAR REVIEWAction: 006Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: 07/13/11Date Completed: 12/20/07Date Started: OPERATIONS AND MAINTENANCEAction: 004Action Code:






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Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 11/15/11Date Completed: 10/16/94Date Started: Restoration Advisory BoardAction: 002Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: 09/30/11Date Completed:


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Not reportedUrgency Indicator: PrimaryPlanning Status: Federal FacilitiesPrimary Responsibility: PERM TREATMENT SYSTEMS ARMYOperable Unit: Not reportedPriority Level: / /Date Completed: 09/29/89Date Started: OPERATIONS AND MAINTENANCEAction: 001Action Code:










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Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: / /Date Completed: 04/12/05Date Started: FEDERAL FACILITY REMEDIAL ACTIONAction: 112Action Code:




Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: / /Date Completed: 09/14/04Date Started: FEDERAL FACILITY REMEDIAL DESIGNAction: 072Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: SITEWIDEOperable Unit: Not reportedPriority Level: / /Date Completed: 07/13/01Date Started: TECHNICAL ASSISTANCE GRANTAction: 002Action Code:




TC3674217.1s Page 122













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ONPOSTOperable Unit: Not reportedPriority Level: / /Date Completed: 12/20/07Date Started: OPERATIONS AND MAINTENANCEAction: 003Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: / /Date Completed: 12/20/07Date Started: OPERATIONS AND MAINTENANCEAction: 002Action Code:






Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: ONPOSTOperable Unit: Not reportedPriority Level: / /Date Completed:


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Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: OFFPOSTOperable Unit: Not reportedPriority Level: / /Date Completed: 12/20/07Date Started: OPERATIONS AND MAINTENANCEAction: 008Action Code:


Not reportedAction Anomaly: Not reportedUrgency Indicator: Not reportedPlanning Status: Federal FacilitiesPrimary Responsibility: OFFPOSTOperable Unit: Not reportedPriority Level: / /Date Completed: 12/20/07Date Started: OPERATIONS AND MAINTENANCEAction: 007Action Code:








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1114 additional US CERCLIS Financial: record(s) in the EDR Site Report.Click this hyperlink while viewing on your computer to access

40320Page Number: 49Fed Register Volume: 10/15/84Fed Register Date:

27620Page Number: 52Fed Register Volume: 07/22/87Fed Register Date:

Federal Register Details:










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http://www.edrnet.com/srf2/FinalSiteReport.aspx?ID=4NY49INUJYIF22W9mZIMK949Ul3Jjt3b6ICNFDE2iP24CWGy3L.mIaZ4s56AMMyKbW7Iv4B39WA7nplPu35a4vOjFrtgq4FdNAhYkw2VJ9tnI6b84.URYJ6p2n5IG6Fbs99v29.WLX45lmuSZGb5UCMAYKbd3yj4lV9At5V7lVH34m4xrNC.YNf3GN9KJIZR26HUTYJlM5MSIEnF7T88z2HlWaO96Jm32ZCh6A8MBrKjD49K4cQ92o3kKlYh3iG9XKjQjtWt1afbBj6IS3K5CaCNDLuS0DLZEOp4TANQRYdb3GJ9LUIFr2NpU3vJXU3KWIQWFlJ2Nn2vgWOM2zNmwLZq22m6Mm9KGK4CW4Jc96f9JXldU3U25u.j75tPT6MfbXa64X2OKCKONFf6wmDiAEqc2

http://www.edrnet.com/srf2/FinalSiteReport.aspx?ID=4NY49INUJYIF22W9mZIMK949Ul3Jjt3b6ICNFDE2iP24CWGy3L.mIaZ4s56AMMyKbW7Iv4B39WA7nplPu35a4vOjFrtgq4FdNAhYkw2VJ9tnI6b84.URYJ6p2n5IG6Fbs99v29.WLX45lmuSZGb5UCMAYKbd3yj4lV9At5V7lVH34m4xrNC.YNf3GN9KJIZR26HUTYJlM5MSIEnF7T88z2HlWaO96Jm32ZCh6A8MBrKjD49K4cQ92o3kKlYh3iG9XKjQjtWt1afbBj6IS3K5CaCNDLuS0DLZEOp4TANQRYdb3GJ9LUIFr2NpU3vJXU3KWIQWFlJ2Nn2vgWOM2zNmwLZq22m6Mm9KGK4CW4Jc96f9JXldU3U25u.j75tPT6MfbXa64X2OKCKONFf6wmDiAEqc2



92811 92411NAICS Code(s): CA077HAction: 19950417Actual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): CA500 - CMI Workplan ApprovedAction: 19990408Actual Date: CAMU - LANDFILLArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): CA550RCAction: 20060307Actual Date: CAMU - LANDFILLArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): CA006OUAction: 19870306Actual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): CA050 - RFA CompletedAction: 19870306Actual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:

CORRACTS:


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Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): timing considerations and administrative considerations action work at the facility, technical factors, the degree of risk, amenable to stabilization activity based on the, status of corrective CA225YE - Stabilization Measures Evaluation, This facility ,isAction: 19950419Actual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): CA070YE - RFA Determination Of Need For An RFI, RFI is NecessaryAction: 19950419Actual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): expected Unacceptable migration of contaminated groundwater is observed or CA750NO - Migration of Contaminated Groundwater under Control,Action: 19950419Actual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): Exposures Under Control has been verified CA725YE - Current Human Exposures Under Control, Yes, Current HumanAction: 19950419Actual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security


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19960611Actual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): CA006OUAction: 19960611Actual Date: CAMU - LANDFILLArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): CA100 - RFI ImpositionAction: 19960611Actual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): Migration of Contaminated Groundwater Under Control has been verified CA750YE - Migration of Contaminated Groundwater under Control, Yes,Action: 20000606Actual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:


Not reportedSchedule end date: Not reportedOriginal schedule date:


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Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): CA450 - Corrective Measures Design ApprovedAction: 19980731Actual Date: CAMU - LANDFILLArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): CA100 - RFI ImpositionAction: 19960611Actual Date: CAMU - LANDFILLArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): corrective action priority CA075HI - CA Prioritization, Facility or area was assigned a highAction: 19960611Actual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): CA400 - Date For Remedy Selection (CM Imposed)Action: 19960611Actual Date: CAMU - LANDFILLArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): CA400 - Date For Remedy Selection (CM Imposed)Action:


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Not reportedSchedule end date: 19991231Original schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): CAGPRAction: Not reportedActual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:


Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): considerations corrective action work at the facility, or other, administrative facility, the degree of risk, timing considerations, the status of (IN). Reasons for this conclusion may be the status of, closure at the inappropriate (NF) or (2) there is a lack of technical, information other than (1) it appears to be technically, infeasible or amenable to stabilization activity at the, present time for reasons CA225NR - Stabilization Measures Evaluation, This facility is, notAction: 19980923Actual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:

Not reportedSchedule end date: Not reportedOriginal schedule date: Programs Administration of Air and Water Resource and Solid Waste Management National Security 92811 92411NAICS Code(s): Migration of Contaminated Groundwater Under Control has been verified CA750YE - Migration of Contaminated Groundwater under Control, Yes,Action: 19980923Actual Date: ENTIRE FACILITYArea Name: 08EPA Region: CO5210020769EPA ID:


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03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

ReinjectionEngineering Control: GroundwaterContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

Pump And TreatEngineering Control: GroundwaterContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

Operations & Maintenance (O&M)Engineering Control: GroundwaterContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

MonitoringEngineering Control: GroundwaterContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

FlocculationEngineering Control: GroundwaterContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

ExtractionEngineering Control: GroundwaterContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

03/31/12Actual Date: Not reportedEvent Code: ADAMSCounty: 08EPA Region: ADAMS COUNTY, CO 80022 IMMED N STAPLETON INTL ARPTAddress: ROCKY MOUNTAIN ARSENAL (USARMY)Name: 0800357Site ID: CO5210020769EPA ID:

US ENG CONTROLS:


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SoilContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

Other, (N.O.S.)Engineering Control: SoilContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

MonitoringEngineering Control: SoilContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

LinerEngineering Control: SoilContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

ExcavationEngineering Control: SoilContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

DisposalEngineering Control: SoilContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

ConsolidateEngineering Control: SoilContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

CapEngineering Control: SoilContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

Slurry WallEngineering Control: GroundwaterContaminated Media :


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FlocculationEngineering Control: GroundwaterContaminated Media : 04Operable Unit: 12/19/95Action Completion date: RECORD OF DECISIONAction Name: 016Action ID:


Containment, (N.O.S.)Engineering Control: GroundwaterContaminated Media : 04Operable Unit: 12/19/95Action Completion date: RECORD OF DECISIONAction Name: 016Action ID:

Carbon AdsorptionEngineering Control: GroundwaterContaminated Media : 04Operable Unit: 12/19/95Action Completion date: RECORD OF DECISIONAction Name: 016Action ID:

Alternate Drinking Water, (N.O.S.)Engineering Control: GroundwaterContaminated Media : 04Operable Unit: 12/19/95Action Completion date: RECORD OF DECISIONAction Name: 016Action ID:

Solidification/Stabilization (In-Situ)Engineering Control: SoilContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

Soil WashingEngineering Control: SoilContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

Slurry WallEngineering Control:


TC3674217.1s Page 134



016Action ID:

MonitoringEngineering Control: Surface WaterContaminated Media : 04Operable Unit: 12/19/95Action Completion date: RECORD OF DECISIONAction Name: 016Action ID:

RevegetationEngineering Control: SoilContaminated Media : 04Operable Unit: 12/19/95Action Completion date: RECORD OF DECISIONAction Name: 016Action ID:

No Further ActionEngineering Control: SoilContaminated Media : 04Operable Unit: 12/19/95Action Completion date: RECORD OF DECISIONAction Name: 016Action ID:

No Further ActionEngineering Control: SedimentContaminated Media : 04Operable Unit: 12/19/95Action Completion date: RECORD OF DECISIONAction Name: 016Action ID:


Pump And TreatEngineering Control: GroundwaterContaminated Media : 04Operable Unit: 12/19/95Action Completion date: RECORD OF DECISIONAction Name: 016Action ID:

Operations & Maintenance (O&M)Engineering Control: GroundwaterContaminated Media : 04Operable Unit: 12/19/95Action Completion date: RECORD OF DECISIONAction Name: 016Action ID:

Natural AttenuationEngineering Control: GroundwaterContaminated Media : 04Operable Unit: 12/19/95Action Completion date: RECORD OF DECISIONAction Name: 016Action ID:


TC3674217.1s Page 135



ROD AmendmentAction Name: 002Action ID:

DewateringEngineering Control: Solid WasteContaminated Media : 03Operable Unit: 04/15/03Action Completion date: ROD AmendmentAction Name: 002Action ID:

ExcavationEngineering Control: SoilContaminated Media : 03Operable Unit: 04/15/03Action Completion date: ROD AmendmentAction Name: 002Action ID:

Dust SuppressionEngineering Control: SoilContaminated Media : 03Operable Unit: 04/15/03Action Completion date: ROD AmendmentAction Name: 002Action ID:

DisposalEngineering Control: SoilContaminated Media : 03Operable Unit: 04/15/03Action Completion date: ROD AmendmentAction Name: 002Action ID:

DewateringEngineering Control: SoilContaminated Media : 03Operable Unit: 04/15/03Action Completion date: ROD AmendmentAction Name: 002Action ID:

Other, (N.O.S.)Engineering Control: SoilContaminated Media : 16Operable Unit: 09/30/93Action Completion date: ROD AmendmentAction Name: 001Action ID:

Other, (N.O.S.)Engineering Control: SludgeContaminated Media : 16Operable Unit: 09/30/93Action Completion date: ROD AmendmentAction Name: 001Action ID:

No Further ActionEngineering Control: Surface WaterContaminated Media : 04Operable Unit: 12/19/95Action Completion date: RECORD OF DECISIONAction Name:


TC3674217.1s Page 136



10/20/05Action Completion date: ROD AmendmentAction Name: 003Action ID:

DisposalEngineering Control: SoilContaminated Media : 03Operable Unit: 10/20/05Action Completion date: ROD AmendmentAction Name: 003Action ID:

CapEngineering Control: SoilContaminated Media : 03Operable Unit: 10/20/05Action Completion date: ROD AmendmentAction Name: 003Action ID:

Pump And TreatEngineering Control: GroundwaterContaminated Media : 03Operable Unit: 10/20/05Action Completion date: ROD AmendmentAction Name: 003Action ID:

Operations & Maintenance (O&M)Engineering Control: GroundwaterContaminated Media : 03Operable Unit: 10/20/05Action Completion date: ROD AmendmentAction Name: 003Action ID:

Impermeable BarrierEngineering Control: GroundwaterContaminated Media : 03Operable Unit: 10/20/05Action Completion date: ROD AmendmentAction Name: 003Action ID:

ExcavationEngineering Control: Solid WasteContaminated Media : 03Operable Unit: 04/15/03Action Completion date: ROD AmendmentAction Name: 002Action ID:

Dust SuppressionEngineering Control: Solid WasteContaminated Media : 03Operable Unit: 04/15/03Action Completion date: ROD AmendmentAction Name: 002Action ID:

DisposalEngineering Control: Solid WasteContaminated Media : 03Operable Unit: 04/15/03Action Completion date:


TC3674217.1s Page 137



26Operable Unit: 11/18/92Action Completion date: Explanation Of Significant DifferencesAction Name: 001Action ID:

SamplingEngineering Control: Buildings/StructuresContaminated Media : 26Operable Unit: 11/18/92Action Completion date: Explanation Of Significant DifferencesAction Name: 001Action ID:

Residuals DisposalEngineering Control: Buildings/StructuresContaminated Media : 26Operable Unit: 11/18/92Action Completion date: Explanation Of Significant DifferencesAction Name: 001Action ID:

RecyclingEngineering Control: Buildings/StructuresContaminated Media : 26Operable Unit: 11/18/92Action Completion date: Explanation Of Significant DifferencesAction Name: 001Action ID:

DisposalEngineering Control: Buildings/StructuresContaminated Media : 26Operable Unit: 11/18/92Action Completion date: Explanation Of Significant DifferencesAction Name: 001Action ID:

DemolitionEngineering Control: Buildings/StructuresContaminated Media : 26Operable Unit: 11/18/92Action Completion date: Explanation Of Significant DifferencesAction Name: 001Action ID:

DecontaminationEngineering Control: Buildings/StructuresContaminated Media : 26Operable Unit: 11/18/92Action Completion date: Explanation Of Significant DifferencesAction Name: 001Action ID:

ExcavationEngineering Control: SoilContaminated Media : 03Operable Unit: 10/20/05Action Completion date: ROD AmendmentAction Name: 003Action ID:

Engineering Control, (N.O.S.)Engineering Control: SoilContaminated Media : 03Operable Unit:


TC3674217.1s Page 138



Solid WasteContaminated Media : 03Operable Unit: 09/02/08Action Completion date: Explanation Of Significant DifferencesAction Name: 009Action ID:

Non-fundamental change (ESD)Engineering Control: SoilContaminated Media : 03Operable Unit: 04/23/09Action Completion date: Explanation Of Significant DifferencesAction Name: 008Action ID:

SamplingEngineering Control: SoilContaminated Media : 03Operable Unit: 01/06/09Action Completion date: Explanation Of Significant DifferencesAction Name: 007Action ID:

ExcavationEngineering Control: SoilContaminated Media : 03Operable Unit: 01/06/09Action Completion date: Explanation Of Significant DifferencesAction Name: 007Action ID:

DisposalEngineering Control: SoilContaminated Media : 03Operable Unit: 01/06/09Action Completion date: Explanation Of Significant DifferencesAction Name: 007Action ID:

ConsolidateEngineering Control: SoilContaminated Media : 03Operable Unit: 01/06/09Action Completion date: Explanation Of Significant DifferencesAction Name: 007Action ID:

CapEngineering Control: SoilContaminated Media : 03Operable Unit: 01/21/09Action Completion date: Explanation Of Significant DifferencesAction Name: 006Action ID:

Other, (N.O.S.)Engineering Control: SoilContaminated Media : 03Operable Unit: 06/03/08Action Completion date: Explanation Of Significant DifferencesAction Name: 004Action ID:

Storage - TemporaryEngineering Control: Buildings/StructuresContaminated Media :


TC3674217.1s Page 139



SamplingEngineering Control: SoilContaminated Media : 03Operable Unit: 02/07/02Action Completion date: Explanation Of Significant DifferencesAction Name: 013Action ID:

ExcavationEngineering Control: SoilContaminated Media : 03Operable Unit: 02/07/02Action Completion date: Explanation Of Significant DifferencesAction Name: 013Action ID:

DisposalEngineering Control: SoilContaminated Media : 03Operable Unit: 02/07/02Action Completion date: Explanation Of Significant DifferencesAction Name: 013Action ID:

ConsolidateEngineering Control: SoilContaminated Media : 03Operable Unit: 02/07/02Action Completion date: Explanation Of Significant DifferencesAction Name: 013Action ID:

Soil CoverEngineering Control: SoilContaminated Media : 03Operable Unit: 11/07/00Action Completion date: Explanation Of Significant DifferencesAction Name: 012Action ID:




DisposalEngineering Control:


TC3674217.1s Page 140



019Action ID:

CapEngineering Control: SoilContaminated Media : 03Operable Unit: 06/26/06Action Completion date: Explanation Of Significant DifferencesAction Name: 019Action ID:



Other, (N.O.S.)Engineering Control: GroundwaterContaminated Media : 03Operable Unit: 03/31/06Action Completion date: Explanation Of Significant DifferencesAction Name: 017Action ID:


Other, (N.O.S.)Engineering Control: Solid WasteContaminated Media : 03Operable Unit: 05/19/05Action Completion date: Explanation Of Significant DifferencesAction Name: 015Action ID:




TC3674217.1s Page 141



Explanation Of Significant DifferencesAction Name: 023Action ID:

MonitoringEngineering Control: Free-phase NAPLContaminated Media : 03Operable Unit: 01/06/12Action Completion date: Explanation Of Significant DifferencesAction Name: 023Action ID:

Free Product RecoveryEngineering Control: Free-phase NAPLContaminated Media : 03Operable Unit: 01/06/12Action Completion date: Explanation Of Significant DifferencesAction Name: 023Action ID:

DisposalEngineering Control: Free-phase NAPLContaminated Media : 03Operable Unit: 01/06/12Action Completion date: Explanation Of Significant DifferencesAction Name: 023Action ID:

Containment, (N.O.S.)Engineering Control: Free-phase NAPLContaminated Media : 03Operable Unit: 01/06/12Action Completion date: Explanation Of Significant DifferencesAction Name: 023Action ID:



Non-fundamental change (ESD)Engineering Control: Buildings/StructuresContaminated Media : 03Operable Unit: 04/28/10Action Completion date: Explanation Of Significant DifferencesAction Name: 020Action ID:

Soil CoverEngineering Control: SoilContaminated Media : 03Operable Unit: 06/26/06Action Completion date: Explanation Of Significant DifferencesAction Name:


TC3674217.1s Page 142



02/26/90Action Completion date: RECORD OF DECISIONAction Name: 002Action ID:

Treatment, (N.O.S.)Engineering Control: SludgeContaminated Media : 16Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 002Action ID:

Residuals DisposalEngineering Control: SludgeContaminated Media : 16Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 002Action ID:

SamplingEngineering Control: GroundwaterContaminated Media : 16Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 002Action ID:


Residuals DisposalEngineering Control: GroundwaterContaminated Media : 01Operable Unit: 06/04/87Action Completion date: RECORD OF DECISIONAction Name: 001Action ID:


Air StrippingEngineering Control: GroundwaterContaminated Media : 01Operable Unit: 06/04/87Action Completion date: RECORD OF DECISIONAction Name: 001Action ID:

Non-fundamental change (ESD)Engineering Control: GroundwaterContaminated Media : 03Operable Unit: 01/06/12Action Completion date:


TC3674217.1s Page 143





Hydraulic ControlEngineering Control: GroundwaterContaminated Media : 19Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 003Action ID:


VitrificationEngineering Control: SoilContaminated Media : 16Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 002Action ID:

Treatment, (N.O.S.)Engineering Control: SoilContaminated Media : 16Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 002Action ID:

Subsurface Vertical BarrierEngineering Control: SoilContaminated Media : 16Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 002Action ID:

Residuals DisposalEngineering Control: SoilContaminated Media : 16Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 002Action ID:

VitrificationEngineering Control: SludgeContaminated Media : 16Operable Unit:


TC3674217.1s Page 144



SoilContaminated Media : 18Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 004Action ID:

Carbon AdsorptionEngineering Control: SoilContaminated Media : 18Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 004Action ID:

Treatment, (N.O.S.)Engineering Control: GroundwaterContaminated Media : 18Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 004Action ID:



Hydraulic ControlEngineering Control: GroundwaterContaminated Media : 18Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 004Action ID:



ReinjectionEngineering Control: GroundwaterContaminated Media :


TC3674217.1s Page 145



Dredging, Excavation, or RemovalEngineering Control: SludgeContaminated Media : 20Operable Unit: 03/20/90Action Completion date: RECORD OF DECISIONAction Name: 005Action ID:

DisposalEngineering Control: SludgeContaminated Media : 20Operable Unit: 03/20/90Action Completion date: RECORD OF DECISIONAction Name: 005Action ID:


Recovery TrenchEngineering Control: GroundwaterContaminated Media : 20Operable Unit: 03/20/90Action Completion date: RECORD OF DECISIONAction Name: 005Action ID:


Vapor Phase Carbon AdsorptionEngineering Control: Soil GasContaminated Media : 18Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 004Action ID:

Air Emissions/Off-Gas Treatment, (N.O.S.)Engineering Control: Soil GasContaminated Media : 18Operable Unit: 02/26/90Action Completion date: RECORD OF DECISIONAction Name: 004Action ID:


Soil Vapor Extraction (in-situ)Engineering Control:


TC3674217.1s Page 146



007Action ID:

Recovery WellsEngineering Control: Free-phase NAPLContaminated Media : 23Operable Unit: 05/03/90Action Completion date: RECORD OF DECISIONAction Name: 007Action ID:

MonitoringEngineering Control: Solid WasteContaminated Media : 22Operable Unit: 05/03/90Action Completion date: RECORD OF DECISIONAction Name: 006Action ID:


ExcavationEngineering Control: SoilContaminated Media : 20Operable Unit: 03/20/90Action Completion date: RECORD OF DECISIONAction Name: 005Action ID:


Soil CoverEngineering Control: SludgeContaminated Media : 20Operable Unit: 03/20/90Action Completion date: RECORD OF DECISIONAction Name: 005Action ID:

Slurry WallEngineering Control: SludgeContaminated Media : 20Operable Unit: 03/20/90Action Completion date: RECORD OF DECISIONAction Name: 005Action ID:

Slope StabilizationEngineering Control: SludgeContaminated Media : 20Operable Unit: 03/20/90Action Completion date: RECORD OF DECISIONAction Name: 005Action ID:


TC3674217.1s Page 147



RECORD OF DECISIONAction Name: 010Action ID:


Residuals DisposalEngineering Control: Liquid WasteContaminated Media : 17Operable Unit: 05/14/90Action Completion date: RECORD OF DECISIONAction Name: 008Action ID:

IncinerationEngineering Control: Liquid WasteContaminated Media : 17Operable Unit: 05/14/90Action Completion date: RECORD OF DECISIONAction Name: 008Action ID:

Surface Drain ReinjectionEngineering Control: GroundwaterContaminated Media : 23Operable Unit: 05/03/90Action Completion date: RECORD OF DECISIONAction Name: 007Action ID:

Subsurface Vertical BarrierEngineering Control: GroundwaterContaminated Media : 23Operable Unit: 05/03/90Action Completion date: RECORD OF DECISIONAction Name: 007Action ID:

Containment, (N.O.S.)Engineering Control: GroundwaterContaminated Media : 23Operable Unit: 05/03/90Action Completion date: RECORD OF DECISIONAction Name: 007Action ID:

Subsurface Vertical BarrierEngineering Control: Free-phase NAPLContaminated Media : 23Operable Unit: 05/03/90Action Completion date: RECORD OF DECISIONAction Name: 007Action ID:

Soil CoverEngineering Control: Free-phase NAPLContaminated Media : 23Operable Unit: 05/03/90Action Completion date: RECORD OF DECISIONAction Name:


TC3674217.1s Page 148



09/23/93Action Completion date: RECORD OF DECISIONAction Name: 012Action ID:


RecyclingEngineering Control: DebrisContaminated Media : 27Operable Unit: 09/23/93Action Completion date: RECORD OF DECISIONAction Name: 012Action ID:

DisposalEngineering Control: DebrisContaminated Media : 27Operable Unit: 09/23/93Action Completion date: RECORD OF DECISIONAction Name: 012Action ID:

DecontaminationEngineering Control: DebrisContaminated Media : 27Operable Unit: 09/23/93Action Completion date: RECORD OF DECISIONAction Name: 012Action ID:

Storage - TemporaryEngineering Control: Buildings/StructuresContaminated Media : 26Operable Unit: 09/05/91Action Completion date: RECORD OF DECISIONAction Name: 010Action ID:

SamplingEngineering Control: Buildings/StructuresContaminated Media : 26Operable Unit: 09/05/91Action Completion date: RECORD OF DECISIONAction Name: 010Action ID:

DemolitionEngineering Control: Buildings/StructuresContaminated Media : 26Operable Unit: 09/05/91Action Completion date: RECORD OF DECISIONAction Name: 010Action ID:

DecontaminationEngineering Control: Buildings/StructuresContaminated Media : 26Operable Unit: 09/05/91Action Completion date:


TC3674217.1s Page 149




DisposalEngineering Control: DebrisContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

ConsolidateEngineering Control: DebrisContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

Other, (N.O.S.)Engineering Control: Solid WasteContaminated Media : 29Operable Unit: 09/23/93Action Completion date: RECORD OF DECISIONAction Name: 013Action ID:

Storage - PermanentEngineering Control: SoilContaminated Media : 29Operable Unit: 09/23/93Action Completion date: RECORD OF DECISIONAction Name: 013Action ID:

IncinerationEngineering Control: SoilContaminated Media : 29Operable Unit: 09/23/93Action Completion date: RECORD OF DECISIONAction Name: 013Action ID:



ExcavationEngineering Control: SoilContaminated Media : 27Operable Unit:


TC3674217.1s Page 150



Not reportedEvent Code: ADAMSCounty: 08EPA Region: ADAMS COUNTY, CO 80022 IMMED N STAPLETON INTL ARPTAddress: RECORD OF DECISIONAction Name: ROCKY MOUNTAIN ARSENAL (USARMY)Name: 0800357Site ID: CO5210020769EPA ID:

GroundwaterContaminated Media : 04Operable Unit: 12/19/1995Complet. Date: 12/19/1995Actual Date: Institutional Controls, (N.O.S.)Inst. Control: Not reportedEvent Code: ADAMSCounty: 08EPA Region: ADAMS COUNTY, CO 80022 IMMED N STAPLETON INTL ARPTAddress: RECORD OF DECISIONAction Name: ROCKY MOUNTAIN ARSENAL (USARMY)Name: 0800357Site ID: CO5210020769EPA ID:

US INST CONTROL:


Air StrippingEngineering Control: GroundwaterContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

RecyclingEngineering Control: DebrisContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

Operations & Maintenance (O&M)Engineering Control: DebrisContaminated Media : 03Operable Unit: 06/11/96Action Completion date: RECORD OF DECISIONAction Name: 015Action ID:

MonitoringEngineering Control: DebrisContaminated Media :


TC3674217.1s Page 151



100Specific Gravity: T Chemical, physical, or biological treatment.Handling Method: CF - Fiber or plastic boxes, cartonsContainer Type: 001Number of Containers: P - PoundsUnits: 00003Quantity: D003 - NON-LISTED REACTIVE WASTESWaste Code: NYD000632372TSDF ID: WID980898258Trans2 EPA ID: WID980898258Trans1 EPA ID: CO5210020769Generator EPA ID: 860505Part B Recv Date: 860506Part A Recv Date: 860430TSD Site Recv Date: 860430Trans2 Recv Date: 860424Trans1 Recv Date: 860424Generator Ship Date: WI2000GWTrans2 State ID: WS92Trans1 State ID: Completed copyManifest Status: NYA2652669Document ID:

303-289-0379Mailing Phone: USAMailing Country: Not reportedMailing Zip4: 53080Mailing Zip: WIMailing State: SAUKVILLEMailing City: Not reportedMailing Address 2: C/O GW INC. P.O. BOX AMailing Address: UNITED STATES MILITARY-DRMO-OSB/DENVERMailing Contact: UNITED STATES MILITARY-DRMO-OSB/DENVERMailing Name: USACountry: CO5210020769EPA ID:

NY MANIFEST:

Full-text of USEPA Record of Decision(s) is available from EDR.ROD:

Executive. States District Court is available from EDR. Contact your EDR Account Full-text of the consent decree for this site issued by the United Not reportedEntered Date: Not reportedDistrict: Not reportedCourt Num: Not reportedCase Title: Not reportedSite ID: CO5210020769EPA ID:

CONSENT:

GroundwaterContaminated Media : 04Operable Unit: 12/19/1995Complet. Date: 12/19/1995Actual Date: Water Supply Use RestrictionInst. Control:


TC3674217.1s Page 152



Not reportedGen County: COMMERCE CITY, CO 800220000Mailing City,St,Zip: N OF STAPLETON INTL AIRPORMailing Address: Not reportedMailing Name: 3032890545Telephone: UNITED STATES ARMYContact: CO5210020769Gepaid: 1996Year:

99Facility County: .0175Tons: Transfer StationDisposal Method: etc) Halogenated solvents (chloroforms, methyl chloride, perchloroethylene,Waste Category: Not reportedTSD County: CAD050806850TSD EPA ID: Not reportedGen County: COMMERCE CITY, CO 800220000Mailing City,St,Zip: N OF STAPLETON INTL AIRPORMailing Address: Not reportedMailing Name: 3032890545Telephone: UNITED STATES ARMYContact: CO5210020769Gepaid: 1996Year:

99Facility County: .0025Tons: Transfer StationDisposal Method: Other inorganic solid wasteWaste Category: Not reportedTSD County: CAD050806850TSD EPA ID: Not reportedGen County: COMMERCE CITY, CO 800220000Mailing City,St,Zip: N OF STAPLETON INTL AIRPORMailing Address: Not reportedMailing Name: 3032890545Telephone: UNITED STATES ARMYContact: CO5210020769Gepaid: 1996Year:

99Facility County: 1.3550Tons: Transfer StationDisposal Method: Pesticides and other waste associated with pesticide productionWaste Category: Not reportedTSD County: CAD050806850TSD EPA ID: Not reportedGen County: COMMERCE CITY, CO 800220000Mailing City,St,Zip: N OF STAPLETON INTL AIRPORMailing Address: Not reportedMailing Name: 3032890545Telephone: UNITED STATES ARMYContact: CO5210020769Gepaid: 1996Year:

HAZNET:

86Year:


TC3674217.1s Page 153



Not reportedDate achieved: Not reportedNational action type: Not reportedAir program:

Compliance and Enforcement Major Issues:

Not reportedCurrent HPV: SOURCE OWNED OR OPERATED BY THE FEDERAL GOVERNMENTGovt facility: POTENTIAL UNCONTROLLED EMISSIONS < 100 TONS/YEARDefault classification: IN COMPLIANCE - INSPECTIONDefault compliance status: National SecurityNAIC code description: 928110North Am. industrial classf: NATIONAL SECURITYSic code desc: 9711Sic code: 036Air quality cntrl region: Not reportedDunn & Bradst #: 08Region code: ADAMSCounty: COMMERCE CITY, CO 80022 5650 HAVANA, RMA, BLDG. 128Plant address: ROCKY MOUNTAIN ARSENAL USARMYPlant name: 110000868507EPA plant ID:

Airs Minor Details:

AIRS (AFS):

Not reportedAction: 8Region: CO5210020769EPA ID:

2020 COR ACTION:

25 additional CA_HAZNET: record(s) in the EDR Site Report.Click this hyperlink while viewing on your computer to access

99Facility County: .1100Tons: Transfer StationDisposal Method: Oxygenated solvents (acetone, butanol, ethyl acetate, etc.)Waste Category: Not reportedTSD County: CAD050806850TSD EPA ID: Not reportedGen County: COMMERCE CITY, CO 800220000Mailing City,St,Zip: N OF STAPLETON INTL AIRPORMailing Address: Not reportedMailing Name: 3032890545Telephone: UNITED STATES ARMYContact: CO5210020769Gepaid: 1996Year:

99Facility County: .1500Tons: Transfer StationDisposal Method: Liquids with chromium (VI) >= 500 Mg./LWaste Category: Not reportedTSD County: CAD050806850TSD EPA ID:


TC3674217.1s Page 154

http://www.edrnet.com/srf2/FinalSiteReport.aspx?ID=2V2ZVR1AZj8eRW2CAn15jM2meT4xWf6jCJ67nh3E5l2eVv1XZY7URJ11Ap8gjP3deY4xWi2zCx4Anj2lVA21Zr1iRI4oA978jA85eO5NWZ3GCx2cn48P5P0cMc2SmxtxT72MVz2CZT1eRE2GAK1NjP1Eeu1qW437CU8enY4m5M5eM91QmW5oTt1

http://www.edrnet.com/srf2/FinalSiteReport.aspx?ID=2V2ZVR1AZj8eRW2CAn15jM2meT4xWf6jCJ67nh3E5l2eVv1XZY7URJ11Ap8gjP3deY4xWi2zCx4Anj2lVA21Zr1iRI4oA978jA85eO5NWZ3GCx2cn48P5P0cMc2SmxtxT72MVz2CZT1eRE2GAK1NjP1Eeu1qW437CU8enY4m5M5eM91QmW5oTt1



0Air prog code hist file: 1203Hist compliance date: IN COMPLIANCE - INSPECTIONState compliance status:












Historical Compliance Minor Sources:

Not reportedPenalty amount: Not reportedDate achieved: Not reportedNational action type: Not reportedAir program:

Not reportedPenalty amount:


TC3674217.1s Page 155



Not reportedTurnover compliance: Not reportedRepeat violator date: Not reportedDef. attainment/non attnmnt: IN COMPLIANCE - INSPECTIONDef. poll. compliance status: POTENTIAL UNCONTROLLED EMISSIONS < 100 TONS/YEARDefault pollutant classification: VOLATILE ORGANIC COMPOUNDSPlant air program pollutant: SIP SOURCEAir program code:

Not reportedTurnover compliance: Not reportedRepeat violator date: ATTAINMENT AREA FOR GIVEN POLLUTANTDef. attainment/non attnmnt: IN COMPLIANCE - INSPECTIONDef. poll. compliance status: POTENTIAL UNCONTROLLED EMISSIONS < 100 TONS/YEARDefault pollutant classification: SULFUR DIOXIDEPlant air program pollutant: SIP SOURCEAir program code:

Not reportedTurnover compliance: Not reportedRepeat violator date: ATTAINMENT AREA FOR GIVEN POLLUTANTDef. attainment/non attnmnt: IN COMPLIANCE - INSPECTIONDef. poll. compliance status: POTENTIAL UNCONTROLLED EMISSIONS < 100 TONS/YEARDefault pollutant classification: TOTAL PARTICULATE MATTERPlant air program pollutant: SIP SOURCEAir program code:

Not reportedTurnover compliance: Not reportedRepeat violator date: ATTAINMENT AREA FOR GIVEN POLLUTANTDef. attainment/non attnmnt: IN COMPLIANCE - INSPECTIONDef. poll. compliance status: POTENTIAL UNCONTROLLED EMISSIONS < 100 TONS/YEARDefault pollutant classification: PARTICULATE MATTERPlant air program pollutant: SIP SOURCEAir program code:

Not reportedTurnover compliance: Not reportedRepeat violator date: ATTAINMENT AREA FOR GIVEN POLLUTANTDef. attainment/non attnmnt: IN COMPLIANCE - INSPECTIONDef. poll. compliance status: POTENTIAL UNCONTROLLED EMISSIONS < 100 TONS/YEARDefault pollutant classification: Not reportedPlant air program pollutant: SIP SOURCEAir program code:

Not reportedTurnover compliance: Not reportedRepeat violator date: ATTAINMENT AREA FOR GIVEN POLLUTANTDef. attainment/non attnmnt: IN COMPLIANCE - INSPECTIONDef. poll. compliance status: POTENTIAL UNCONTROLLED EMISSIONS < 100 TONS/YEARDefault pollutant classification: CARBON MONOXIDEPlant air program pollutant: SIP SOURCEAir program code:

Compliance & Violation Data by Minor Sources:


TC3674217.1s Page 156



GRSPermit Specialist Assigned: PrivateSurface Owner: PrivateMineral Owner: 10/16/2002Date Last Inspection: 606Affected Acres: 152Max Allowed Disturbed Acres: CroplandPre Mining: Industrial/CommercialPost Mining: -104.77634999999999Longitude: 39.801830000000002Latitutde: 4405576.9000000004PS Y UTM: 519146.29999999999PS X UTM: 4405576.9000000004UTM Y: 519146.29999999999UTM X: Not reportedQuarter1: Not reportedQuarter Quarter: SEQuarter: 9Section: 06Prime Meridian: WRange Direction: 66Range: SNorth or South: 3Township: 0Actual Surety: 48Required I: 236000Required Surety: 688Annual Fee: Not reportedCommodity 2: 606.20000000000005Permit Acreage: 05/06/1992Date Permit Issued: 112cPermit Type: Kelley Trucking, Inc.Permittee: 11/18/2002Date Status: TerminatedStatus Description: SurfaceMine Type: M1991138Facility Id:

MINES:

1007 ft.0.191 mi.

Relative:Higher

Actual:5338 ft.

1/8-1/4 DENVER (County), CO NNE N/A1 CO MINESTOWER 56/64 BORROW S112330975

TC3674217.1s Page 157

ORPHAN SUMMARY

City EDR ID Site Name Site Address Zip Database(s)

Count: 0 records.

NO SITES FOUND

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To maintain currency of the following federal and state databases, EDR contacts the appropriate governmental agencyon a monthly or quarterly basis, as required.

Number of Days to Update: Provides confirmation that EDR is reporting records that have been updated within 90 daysfrom the date the government agency made the information available to the public.



NPL: National Priority ListNational Priorities List (Superfund). The NPL is a subset of CERCLIS and identifies over 1,200 sites for prioritycleanup under the Superfund Program. NPL sites may encompass relatively large areas. As such, EDR provides polygoncoverage for over 1,000 NPL site boundaries produced by EPA’s Environmental Photographic Interpretation Center(EPIC) and regional EPA offices.

Date of Government Version: 04/26/2013Date Data Arrived at EDR: 05/09/2013Date Made Active in Reports: 07/10/2013Number of Days to Update: 62

Source: EPATelephone: N/ALast EDR Contact: 05/09/2013Next Scheduled EDR Contact: 07/22/2013Data Release Frequency: Quarterly

NPL Site Boundaries

Sources:

EPA’s Environmental Photographic Interpretation Center (EPIC)Telephone: 202-564-7333

EPA Region 1 EPA Region 6Telephone 617-918-1143 Telephone: 214-655-6659




EPA Region 10Telephone 206-553-8665

Proposed NPL: Proposed National Priority List SitesA site that has been proposed for listing on the National Priorities List through the issuance of a proposed rulein the Federal Register. EPA then accepts public comments on the site, responds to the comments, and places onthe NPL those sites that continue to meet the requirements for listing.



NPL LIENS: Federal Superfund LiensFederal Superfund Liens. Under the authority granted the USEPA by CERCLA of 1980, the USEPA has the authorityto file liens against real property in order to recover remedial action expenditures or when the property ownerreceived notification of potential liability. USEPA compiles a listing of filed notices of Superfund Liens.


Source: EPATelephone: 202-564-4267Last EDR Contact: 08/15/2011Next Scheduled EDR Contact: 11/28/2011Data Release Frequency: No Update Planned

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING


DELISTED NPL: National Priority List DeletionsThe National Oil and Hazardous Substances Pollution Contingency Plan (NCP) establishes the criteria that theEPA uses to delete sites from the NPL. In accordance with 40 CFR 300.425.(e), sites may be deleted from theNPL where no further response is appropriate.




CERCLIS: Comprehensive Environmental Response, Compensation, and Liability Information SystemCERCLIS contains data on potentially hazardous waste sites that have been reported to the USEPA by states, municipalities,private companies and private persons, pursuant to Section 103 of the Comprehensive Environmental Response, Compensation,and Liability Act (CERCLA). CERCLIS contains sites which are either proposed to or on the National PrioritiesList (NPL) and sites which are in the screening and assessment phase for possible inclusion on the NPL.


Source: EPATelephone: 703-412-9810Last EDR Contact: 05/29/2013Next Scheduled EDR Contact: 09/09/2013Data Release Frequency: Quarterly

FEDERAL FACILITY: Federal Facility Site Information listingA listing of National Priority List (NPL) and Base Realignment and Closure (BRAC) sites found in the ComprehensiveEnvironmental Response, Compensation and Liability Information System (CERCLIS) Database where EPA Federal FacilitiesRestoration and Reuse Office is involved in cleanup activities.


Source: Environmental Protection AgencyTelephone: 703-603-8704Last EDR Contact: 07/08/2013Next Scheduled EDR Contact: 10/21/2013Data Release Frequency: Varies


CERCLIS-NFRAP: CERCLIS No Further Remedial Action PlannedArchived sites are sites that have been removed and archived from the inventory of CERCLIS sites. Archived statusindicates that, to the best of EPA’s knowledge, assessment at a site has been completed and that EPA has determinedno further steps will be taken to list this site on the National Priorities List (NPL), unless information indicatesthis decision was not appropriate or other considerations require a recommendation for listing at a later time.This decision does not necessarily mean that there is no hazard associated with a given site; it only means that,based upon available information, the location is not judged to be a potential NPL site.




CORRACTS: Corrective Action ReportCORRACTS identifies hazardous waste handlers with RCRA corrective action activity.





Federal RCRA non-CORRACTS TSD facilities list

RCRA-TSDF: RCRA - Treatment, Storage and DisposalRCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservationand Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The databaseincludes selective information on sites which generate, transport, store, treat and/or dispose of hazardous wasteas defined by the Resource Conservation and Recovery Act (RCRA). Transporters are individuals or entities thatmove hazardous waste from the generator offsite to a facility that can recycle, treat, store, or dispose of thewaste. TSDFs treat, store, or dispose of the waste.


Source: Environmental Protection AgencyTelephone: 303-312-6149Last EDR Contact: 07/01/2013Next Scheduled EDR Contact: 10/14/2013Data Release Frequency: Quarterly


RCRA-LQG: RCRA - Large Quantity GeneratorsRCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservationand Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The databaseincludes selective information on sites which generate, transport, store, treat and/or dispose of hazardous wasteas defined by the Resource Conservation and Recovery Act (RCRA). Large quantity generators (LQGs) generateover 1,000 kilograms (kg) of hazardous waste, or over 1 kg of acutely hazardous waste per month.



RCRA-SQG: RCRA - Small Quantity GeneratorsRCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservationand Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The databaseincludes selective information on sites which generate, transport, store, treat and/or dispose of hazardous wasteas defined by the Resource Conservation and Recovery Act (RCRA). Small quantity generators (SQGs) generatebetween 100 kg and 1,000 kg of hazardous waste per month.



RCRA-CESQG: RCRA - Conditionally Exempt Small Quantity GeneratorsRCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservationand Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The databaseincludes selective information on sites which generate, transport, store, treat and/or dispose of hazardous wasteas defined by the Resource Conservation and Recovery Act (RCRA). Conditionally exempt small quantity generators(CESQGs) generate less than 100 kg of hazardous waste, or less than 1 kg of acutely hazardous waste per month.





Federal institutional controls / engineering controls registries

US ENG CONTROLS: Engineering Controls Sites ListA listing of sites with engineering controls in place. Engineering controls include various forms of caps, buildingfoundations, liners, and treatment methods to create pathway elimination for regulated substances to enter environmentalmedia or effect human health.



US INST CONTROL: Sites with Institutional ControlsA listing of sites with institutional controls in place. Institutional controls include administrative measures,such as groundwater use restrictions, construction restrictions, property use restrictions, and post remediationcare requirements intended to prevent exposure to contaminants remaining on site. Deed restrictions are generallyrequired as part of the institutional controls.



LUCIS: Land Use Control Information SystemLUCIS contains records of land use control information pertaining to the former Navy Base Realignment and Closureproperties.


Source: Department of the NavyTelephone: 843-820-7326Last EDR Contact: 05/20/2013Next Scheduled EDR Contact: 09/02/2013Data Release Frequency: Varies

Federal ERNS list

ERNS: Emergency Response Notification SystemEmergency Response Notification System. ERNS records and stores information on reported releases of oil and hazardoussubstances.


Source: National Response Center, United States Coast GuardTelephone: 202-267-2180Last EDR Contact: 07/01/2013Next Scheduled EDR Contact: 10/14/2013Data Release Frequency: Annually


SHWS: This state does not maintain a SHWS list. See the Federal CERCLIS list and Federal NPL list.State Hazardous Waste Sites. State hazardous waste site records are the states’ equivalent to CERCLIS. These sitesmay or may not already be listed on the federal CERCLIS list. Priority sites planned for cleanup using state funds(state equivalent of Superfund) are identified along with sites where cleanup will be paid for by potentiallyresponsible parties. Available information varies by state.

Date of Government Version: N/ADate Data Arrived at EDR: N/ADate Made Active in Reports: N/ANumber of Days to Update: N/A

Source: Department of Public Health & EnvironmentTelephone: 303-692-3300Last EDR Contact: 05/20/2013Next Scheduled EDR Contact: 09/02/2013Data Release Frequency: N/A



State and tribal landfill and/or solid waste disposal site lists

SWF/LF: Solid Waste Sites & FacilitiesSolid Waste Facilities/Landfill Sites. SWF/LF type records typically contain an inventory of solid waste disposalfacilities or landfills in a particular state. Depending on the state, these may be active or inactive facilitiesor open dumps that failed to meet RCRA Subtitle D Section 4004 criteria for solid waste landfills or disposalsites.


Source: Department of Public Health & EnvironmentTelephone: 303-692-3300Last EDR Contact: 05/17/2013Next Scheduled EDR Contact: 08/26/2013Data Release Frequency: Annually


LUST: Leaking Underground Storage Tank ListLeaking Underground Storage Tank Incident Reports. LUST records contain an inventory of reported leaking undergroundstorage tank incidents. Not all states maintain these records, and the information stored varies by state.


Source: Department of Labor and Employment, Oil Inspection SectionTelephone: 303-318-8521Last EDR Contact: 06/10/2013Next Scheduled EDR Contact: 09/23/2013Data Release Frequency: Quarterly

TRUST: Lust Trust SitesReimbursement application package. The 1989 Colorado General Assembly established Colorado’s Petroleum StorageTank Fund. The Fund reimburses eligible applicants for allowable costs incurred in cleaning up petroleum contaminationfrom underground and aboveground petroleum storage tanks, as well as for third-party liability expenses. Remediationof contamination caused by railroad or aircraft fuel is not eligible for reimbursement. The Fund satisfies federalEnvironmental Protection Agency financial assurance requirements. Monies in the Fund come from various sources,predominantly the state environmental surcharge imposed on all petroleum products except railroad or aircraftfuel.


Source: Department of Labor and Employment, Oil Inspection SectionTelephone: 303-318-8521Last EDR Contact: 07/18/2013Next Scheduled EDR Contact: 10/14/2013Data Release Frequency: Varies

LAST: Leaking Aboveground Storage Tank ListingA listing of leaking aboveground storage tank sites.


Source: Department of Labor & EmploymentTelephone: 303-318-8525Last EDR Contact: 06/10/2013Next Scheduled EDR Contact: 09/23/2013Data Release Frequency: Varies

INDIAN LUST R7: Leaking Underground Storage Tanks on Indian LandLUSTs on Indian land in Iowa, Kansas, and Nebraska


Source: EPA Region 7Telephone: 913-551-7003Last EDR Contact: 04/29/2013Next Scheduled EDR Contact: 08/12/2013Data Release Frequency: Varies



INDIAN LUST R8: Leaking Underground Storage Tanks on Indian LandLUSTs on Indian land in Colorado, Montana, North Dakota, South Dakota, Utah and Wyoming.


Source: EPA Region 8Telephone: 303-312-6271Last EDR Contact: 04/29/2013Next Scheduled EDR Contact: 08/12/2013Data Release Frequency: Quarterly

INDIAN LUST R4: Leaking Underground Storage Tanks on Indian LandLUSTs on Indian land in Florida, Mississippi and North Carolina.


Source: EPA Region 4Telephone: 404-562-8677Last EDR Contact: 04/29/2013Next Scheduled EDR Contact: 08/12/2013Data Release Frequency: Semi-Annually

INDIAN LUST R10: Leaking Underground Storage Tanks on Indian LandLUSTs on Indian land in Alaska, Idaho, Oregon and Washington.



INDIAN LUST R1: Leaking Underground Storage Tanks on Indian LandA listing of leaking underground storage tank locations on Indian Land.



INDIAN LUST R6: Leaking Underground Storage Tanks on Indian LandLUSTs on Indian land in New Mexico and Oklahoma.



INDIAN LUST R9: Leaking Underground Storage Tanks on Indian LandLUSTs on Indian land in Arizona, California, New Mexico and Nevada




UST: Underground Storage Tank DatabaseRegistered Underground Storage Tanks. UST’s are regulated under Subtitle I of the Resource Conservation and RecoveryAct (RCRA) and must be registered with the state department responsible for administering the UST program. Availableinformation varies by state program.




Source: Department of Labor and Employment, Oil Inspection SectionTelephone: 303-318-8521Last EDR Contact: 06/10/2013Next Scheduled EDR Contact: 09/23/2013Data Release Frequency: Quarterly

AST: Aboveground Tank ListAboveground storage tank locations.


Source: Department of Labor and Employment, Oil Inspection SectionTelephone: 303-318-8521Last EDR Contact: 06/10/2013Next Scheduled EDR Contact: 09/23/2013Data Release Frequency: Semi-Annually

INDIAN UST R9: Underground Storage Tanks on Indian LandThe Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indianland in EPA Region 9 (Arizona, California, Hawaii, Nevada, the Pacific Islands, and Tribal Nations).



INDIAN UST R8: Underground Storage Tanks on Indian LandThe Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indianland in EPA Region 8 (Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming and 27 Tribal Nations).



INDIAN UST R1: Underground Storage Tanks on Indian LandThe Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indianland in EPA Region 1 (Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont and ten TribalNations).


Source: EPA, Region 1Telephone: 617-918-1313Last EDR Contact: 04/29/2013Next Scheduled EDR Contact: 08/12/2013Data Release Frequency: Varies

INDIAN UST R4: Underground Storage Tanks on Indian LandThe Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indianland in EPA Region 4 (Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennesseeand Tribal Nations)



INDIAN UST R7: Underground Storage Tanks on Indian LandThe Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indianland in EPA Region 7 (Iowa, Kansas, Missouri, Nebraska, and 9 Tribal Nations).





INDIAN UST R6: Underground Storage Tanks on Indian LandThe Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indianland in EPA Region 6 (Louisiana, Arkansas, Oklahoma, New Mexico, Texas and 65 Tribes).



INDIAN UST R5: Underground Storage Tanks on Indian LandThe Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indianland in EPA Region 5 (Michigan, Minnesota and Wisconsin and Tribal Nations).



INDIAN UST R10: Underground Storage Tanks on Indian LandThe Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indianland in EPA Region 10 (Alaska, Idaho, Oregon, Washington, and Tribal Nations).



FEMA UST: Underground Storage Tank ListingA listing of all FEMA owned underground storage tanks.


Source: FEMATelephone: 202-646-5797Last EDR Contact: 07/19/2013Next Scheduled EDR Contact: 10/28/2013Data Release Frequency: Varies

State and tribal institutional control / engineering control registries

AUL: Environmental Real Covenants ListSenate Bill 01-145 gave authority to the Colorado Department of Public Health and Environment to approve requeststo restrict the future use of a property using an enforceable agreement called an environmental covenant. Whena contaminated site is not cleaned up completely, land use restrictions may be used to ensure that the selectedcleanup remedy is adequately protective of human health and the environment.


Source: Department of Public Health & EnvironmentTelephone: 303-692-3331Last EDR Contact: 06/13/2013Next Scheduled EDR Contact: 08/19/2013Data Release Frequency: Varies




INDIAN VCP R1: Voluntary Cleanup Priority ListingA listing of voluntary cleanup priority sites located on Indian Land located in Region 1.



INDIAN VCP R7: Voluntary Cleanup Priority LisitngA listing of voluntary cleanup priority sites located on Indian Land located in Region 7.



VCP: Voluntary Cleanup & Redevelopment Act Application Tracking ReportThe Voluntary Cleanup and Redevelopment Act is intended to permit and encourage voluntary cleanups by providinga method to determine clean-up responsibilities in planning the reuse of property. The VCRA was intended for siteswhich were not covered by existing regulatory programs.


Source: Department of Public Health and EnvironmentalTelephone: 303-692-3331Last EDR Contact: 07/19/2013Next Scheduled EDR Contact: 10/28/2013Data Release Frequency: Semi-Annually



US BROWNFIELDS: A Listing of Brownfields SitesBrownfields are real property, the expansion, redevelopment, or reuse of which may be complicated by the presenceor potential presence of a hazardous substance, pollutant, or contaminant. Cleaning up and reinvesting in theseproperties takes development pressures off of undeveloped, open land, and both improves and protects the environment.Assessment, Cleanup and Redevelopment Exchange System (ACRES) stores information reported by EPA Brownfieldsgrant recipients on brownfields properties assessed or cleaned up with grant funding as well as information onTargeted Brownfields Assessments performed by EPA Regions. A listing of ACRES Brownfield sites is obtained fromCleanups in My Community. Cleanups in My Community provides information on Brownfields properties for which informationis reported back to EPA, as well as areas served by Brownfields grant programs.


Source: Environmental Protection AgencyTelephone: 202-566-2777Last EDR Contact: 06/25/2013Next Scheduled EDR Contact: 10/07/2013Data Release Frequency: Semi-Annually

Local Lists of Landfill / Solid Waste Disposal Sites

DEBRIS REGION 9: Torres Martinez Reservation Illegal Dump Site LocationsA listing of illegal dump sites location on the Torres Martinez Indian Reservation located in eastern RiversideCounty and northern Imperial County, California.


Source: EPA, Region 9Telephone: 415-947-4219Last EDR Contact: 04/29/2013Next Scheduled EDR Contact: 08/12/2013Data Release Frequency: No Update Planned



ODI: Open Dump InventoryAn open dump is defined as a disposal facility that does not comply with one or more of the Part 257 or Part 258Subtitle D Criteria.


Source: Environmental Protection AgencyTelephone: 800-424-9346Last EDR Contact: 06/09/2004Next Scheduled EDR Contact: N/AData Release Frequency: No Update Planned

HISTORICAL LANDFILL: Historical Landfill ListAbandoned/Inactive Landfills.


Source: Department of Public Health & EnvironmentTelephone: 303-692-3300Last EDR Contact: 09/05/1996Next Scheduled EDR Contact: N/AData Release Frequency: No Update Planned

SWRCY: Registered Recyclers ListingA listing of registered recycler locations in the state of Colorado.



INDIAN ODI: Report on the Status of Open Dumps on Indian LandsLocation of open dumps on Indian land.



Local Lists of Hazardous waste / Contaminated Sites

US CDL: Clandestine Drug LabsA listing of clandestine drug lab locations. The U.S. Department of Justice ("the Department") provides thisweb site as a public service. It contains addresses of some locations where law enforcement agencies reportedthey found chemicals or other items that indicated the presence of either clandestine drug laboratories or dumpsites.In most cases, the source of the entries is not the Department, and the Department has not verified the entryand does not guarantee its accuracy. Members of the public must verify the accuracy of all entries by, for example,contacting local law enforcement and local health departments.


Source: Drug Enforcement AdministrationTelephone: 202-307-1000Last EDR Contact: 06/03/2013Next Scheduled EDR Contact: 09/16/2013Data Release Frequency: Quarterly

CDL: Meth Lab LocationsMeth lab locations that were reported to the Department of Public Health & Environment.


Source: Department of Public Health and EnvironmentTelephone: 303-692-3023Last EDR Contact: 07/03/2013Next Scheduled EDR Contact: 10/21/2013Data Release Frequency: Quarterly

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US HIST CDL: National Clandestine Laboratory RegisterA listing of clandestine drug lab locations. The U.S. Department of Justice ("the Department") provides thisweb site as a public service. It contains addresses of some locations where law enforcement agencies reportedthey found chemicals or other items that indicated the presence of either clandestine drug laboratories or dumpsites.In most cases, the source of the entries is not the Department, and the Department has not verified the entryand does not guarantee its accuracy. Members of the public must verify the accuracy of all entries by, for example,contacting local law enforcement and local health departments.


Source: Drug Enforcement AdministrationTelephone: 202-307-1000Last EDR Contact: 03/23/2009Next Scheduled EDR Contact: 06/22/2009Data Release Frequency: No Update Planned

Local Land Records

LIENS 2: CERCLA Lien InformationA Federal CERCLA (’Superfund’) lien can exist by operation of law at any site or property at which EPA has spentSuperfund monies. These monies are spent to investigate and address releases and threatened releases of contamination.CERCLIS provides information as to the identity of these sites and properties.




HMIRS: Hazardous Materials Information Reporting SystemHazardous Materials Incident Report System. HMIRS contains hazardous material spill incidents reported to DOT.


Source: U.S. Department of TransportationTelephone: 202-366-4555Last EDR Contact: 07/01/2013Next Scheduled EDR Contact: 10/14/2013Data Release Frequency: Annually

CO ERNS: Spills DatabaseState reported spills.


Source: Department of Public Health and EnvironmentalTelephone: 303-692-2000Last EDR Contact: 07/03/2013Next Scheduled EDR Contact: 10/21/2013Data Release Frequency: Quarterly

SPILLS 90: SPILLS90 data from FirstSearchSpills 90 includes those spill and release records available exclusively from FirstSearch databases. Typically,they may include chemical, oil and/or hazardous substance spills recorded after 1990. Duplicate records that arealready included in EDR incident and release records are not included in Spills 90.


Source: FirstSearchTelephone: N/ALast EDR Contact: 01/03/2013Next Scheduled EDR Contact: N/AData Release Frequency: No Update Planned


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RCRA NonGen / NLR: RCRA - Non GeneratorsRCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservationand Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The databaseincludes selective information on sites which generate, transport, store, treat and/or dispose of hazardous wasteas defined by the Resource Conservation and Recovery Act (RCRA). Non-Generators do not presently generate hazardouswaste.



DOT OPS: Incident and Accident DataDepartment of Transporation, Office of Pipeline Safety Incident and Accident data.


Source: Department of Transporation, Office of Pipeline SafetyTelephone: 202-366-4595Last EDR Contact: 05/07/2013Next Scheduled EDR Contact: 08/19/2013Data Release Frequency: Varies

DOD: Department of Defense SitesThis data set consists of federally owned or administered lands, administered by the Department of Defense, thathave any area equal to or greater than 640 acres of the United States, Puerto Rico, and the U.S. Virgin Islands.


Source: USGSTelephone: 888-275-8747Last EDR Contact: 07/19/2013Next Scheduled EDR Contact: 10/28/2013Data Release Frequency: Semi-Annually

FUDS: Formerly Used Defense SitesThe listing includes locations of Formerly Used Defense Sites properties where the US Army Corps of Engineersis actively working or will take necessary cleanup actions.


Source: U.S. Army Corps of EngineersTelephone: 202-528-4285Last EDR Contact: 06/10/2013Next Scheduled EDR Contact: 09/23/2013Data Release Frequency: Varies

CONSENT: Superfund (CERCLA) Consent DecreesMajor legal settlements that establish responsibility and standards for cleanup at NPL (Superfund) sites. Releasedperiodically by United States District Courts after settlement by parties to litigation matters.


Source: Department of Justice, Consent Decree LibraryTelephone: VariesLast EDR Contact: 06/25/2013Next Scheduled EDR Contact: 10/14/2013Data Release Frequency: Varies

ROD: Records Of DecisionRecord of Decision. ROD documents mandate a permanent remedy at an NPL (Superfund) site containing technicaland health information to aid in the cleanup.


Source: EPATelephone: 703-416-0223Last EDR Contact: 06/11/2013Next Scheduled EDR Contact: 09/23/2013Data Release Frequency: Annually

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UMTRA: Uranium Mill Tailings SitesUranium ore was mined by private companies for federal government use in national defense programs. When the millsshut down, large piles of the sand-like material (mill tailings) remain after uranium has been extracted fromthe ore. Levels of human exposure to radioactive materials from the piles are low; however, in some cases tailingswere used as construction materials before the potential health hazards of the tailings were recognized.


Source: Department of EnergyTelephone: 505-845-0011Last EDR Contact: 05/28/2013Next Scheduled EDR Contact: 09/09/2013Data Release Frequency: Varies

US MINES: Mines Master Index FileContains all mine identification numbers issued for mines active or opened since 1971. The data also includesviolation information.


Source: Department of Labor, Mine Safety and Health AdministrationTelephone: 303-231-5959Last EDR Contact: 06/04/2013Next Scheduled EDR Contact: 09/16/2013Data Release Frequency: Semi-Annually

TRIS: Toxic Chemical Release Inventory SystemToxic Release Inventory System. TRIS identifies facilities which release toxic chemicals to the air, water andland in reportable quantities under SARA Title III Section 313.



TSCA: Toxic Substances Control ActToxic Substances Control Act. TSCA identifies manufacturers and importers of chemical substances included on theTSCA Chemical Substance Inventory list. It includes data on the production volume of these substances by plantsite.


Source: EPATelephone: 202-260-5521Last EDR Contact: 06/25/2013Next Scheduled EDR Contact: 10/07/2013Data Release Frequency: Every 4 Years

FTTS: FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act)FTTS tracks administrative cases and pesticide enforcement actions and compliance activities related to FIFRA,TSCA and EPCRA (Emergency Planning and Community Right-to-Know Act). To maintain currency, EDR contacts theAgency on a quarterly basis.


Source: EPA/Office of Prevention, Pesticides and Toxic SubstancesTelephone: 202-566-1667Last EDR Contact: 05/28/2013Next Scheduled EDR Contact: 09/09/2013Data Release Frequency: Quarterly

FTTS INSP: FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act)A listing of FIFRA/TSCA Tracking System (FTTS) inspections and enforcements.



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HIST FTTS: FIFRA/TSCA Tracking System Administrative Case ListingA complete administrative case listing from the FIFRA/TSCA Tracking System (FTTS) for all ten EPA regions. Theinformation was obtained from the National Compliance Database (NCDB). NCDB supports the implementation of FIFRA(Federal Insecticide, Fungicide, and Rodenticide Act) and TSCA (Toxic Substances Control Act). Some EPA regionsare now closing out records. Because of that, and the fact that some EPA regions are not providing EPA Headquarterswith updated records, it was decided to create a HIST FTTS database. It included records that may not be includedin the newer FTTS database updates. This database is no longer updated.


Source: Environmental Protection AgencyTelephone: 202-564-2501Last EDR Contact: 12/17/2007Next Scheduled EDR Contact: 03/17/2008Data Release Frequency: No Update Planned

HIST FTTS INSP: FIFRA/TSCA Tracking System Inspection & Enforcement Case ListingA complete inspection and enforcement case listing from the FIFRA/TSCA Tracking System (FTTS) for all ten EPAregions. The information was obtained from the National Compliance Database (NCDB). NCDB supports the implementationof FIFRA (Federal Insecticide, Fungicide, and Rodenticide Act) and TSCA (Toxic Substances Control Act). SomeEPA regions are now closing out records. Because of that, and the fact that some EPA regions are not providingEPA Headquarters with updated records, it was decided to create a HIST FTTS database. It included records thatmay not be included in the newer FTTS database updates. This database is no longer updated.


Source: Environmental Protection AgencyTelephone: 202-564-2501Last EDR Contact: 12/17/2008Next Scheduled EDR Contact: 03/17/2008Data Release Frequency: No Update Planned

SSTS: Section 7 Tracking SystemsSection 7 of the Federal Insecticide, Fungicide and Rodenticide Act, as amended (92 Stat. 829) requires allregistered pesticide-producing establishments to submit a report to the Environmental Protection Agency by March1st each year. Each establishment must report the types and amounts of pesticides, active ingredients and devicesbeing produced, and those having been produced and sold or distributed in the past year.



ICIS: Integrated Compliance Information SystemThe Integrated Compliance Information System (ICIS) supports the information needs of the national enforcementand compliance program as well as the unique needs of the National Pollutant Discharge Elimination System (NPDES)program.



PADS: PCB Activity Database SystemPCB Activity Database. PADS Identifies generators, transporters, commercial storers and/or brokers and disposersof PCB’s who are required to notify the EPA of such activities.



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MLTS: Material Licensing Tracking SystemMLTS is maintained by the Nuclear Regulatory Commission and contains a list of approximately 8,100 sites whichpossess or use radioactive materials and which are subject to NRC licensing requirements. To maintain currency,EDR contacts the Agency on a quarterly basis.


Source: Nuclear Regulatory CommissionTelephone: 301-415-7169Last EDR Contact: 07/10/2013Next Scheduled EDR Contact: 09/23/2013Data Release Frequency: Quarterly

RADINFO: Radiation Information DatabaseThe Radiation Information Database (RADINFO) contains information about facilities that are regulated by U.S.Environmental Protection Agency (EPA) regulations for radiation and radioactivity.



FINDS: Facility Index System/Facility Registry SystemFacility Index System. FINDS contains both facility information and ’pointers’ to other sources that contain moredetail. EDR includes the following FINDS databases in this report: PCS (Permit Compliance System), AIRS (AerometricInformation Retrieval System), DOCKET (Enforcement Docket used to manage and track information on civil judicialenforcement cases for all environmental statutes), FURS (Federal Underground Injection Control), C-DOCKET (CriminalDocket System used to track criminal enforcement actions for all environmental statutes), FFIS (Federal FacilitiesInformation System), STATE (State Environmental Laws and Statutes), and PADS (PCB Activity Data System).


Source: EPATelephone: (303) 312-6312Last EDR Contact: 06/13/2013Next Scheduled EDR Contact: 09/23/2013Data Release Frequency: Quarterly

RAATS: RCRA Administrative Action Tracking SystemRCRA Administration Action Tracking System. RAATS contains records based on enforcement actions issued under RCRApertaining to major violators and includes administrative and civil actions brought by the EPA. For administrationactions after September 30, 1995, data entry in the RAATS database was discontinued. EPA will retain a copy ofthe database for historical records. It was necessary to terminate RAATS because a decrease in agency resourcesmade it impossible to continue to update the information contained in the database.


Source: EPATelephone: 202-564-4104Last EDR Contact: 06/02/2008Next Scheduled EDR Contact: 09/01/2008Data Release Frequency: No Update Planned

RMP: Risk Management Plans

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When Congress passed the Clean Air Act Amendments of 1990, it required EPA to publish regulations and guidancefor chemical accident prevention at facilities using extremely hazardous substances. The Risk Management ProgramRule (RMP Rule) was written to implement Section 112(r) of these amendments. The rule, which built upon existingindustry codes and standards, requires companies of all sizes that use certain flammable and toxic substancesto develop a Risk Management Program, which includes a(n): Hazard assessment that details the potential effectsof an accidental release, an accident history of the last five years, and an evaluation of worst-case and alternativeaccidental releases; Prevention program that includes safety precautions and maintenance, monitoring, and employeetraining measures; and Emergency response program that spells out emergency health care, employee training measuresand procedures for informing the public and response agencies (e.g the fire department) should an accident occur.



BRS: Biennial Reporting SystemThe Biennial Reporting System is a national system administered by the EPA that collects data on the generationand management of hazardous waste. BRS captures detailed data from two groups: Large Quantity Generators (LQG)and Treatment, Storage, and Disposal Facilities.


Source: EPA/NTISTelephone: 800-424-9346Last EDR Contact: 05/30/2013Next Scheduled EDR Contact: 09/09/2013Data Release Frequency: Biennially

METHANE SITE: Methane Site Investigations - Jefferson County 1980The objectives of the study are to define as closely as possible the boundaries of methane producing solid wastelandfills.


Source: Jefferson County Health DepartmentTelephone: 303-239-7175Last EDR Contact: 01/27/1995Next Scheduled EDR Contact: N/AData Release Frequency: No Update Planned

METHANE INVESTIGATION: Methane Gas & Swamp FindingsThe primary objective of this study was to assess methane gas related hazards at selected landfill sites in Colorado.These sites were selected by the Colorado Department of Health following evaluation of responses received fromCounty and Municipal agencies about completed and existing landfills within their jurisdiction.


Source: Department of HealthTelephone: 303-640-3335Last EDR Contact: 01/27/1995Next Scheduled EDR Contact: N/AData Release Frequency: No Update Planned

DRYCLEANERS: Drycleaner FacilitiesA listing of drycleaning facilities.



NPDES: Permitted Facility ListingA listing of permitted facilities from the Water Quality Control Division.

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AIRS: Permitted Facility & Emissions ListingA listing of Air Pollution Control Division permits and emissions data.



UMTRA: Uranium Mill Tailings SitesThere were nine uranium mill tailings sites in Colorado designated for cleanup under the federal Uranium MillTailings Radiation Control Act. These nine sites, know commonly as UMTRA sites, were remediated jointly by theState of Colorado and the U.S. Department of Energy during the late 1980’s and early 1990’s. Mill tailings wereremoved from 8 of the mill sites and relocated in engineered disposal cells. A disposal cell is designed to encapsulatethe material, reduce radon emanation, and prevent the movement of water through the material. At one site, Maybell,CO, the tailings were stabilized in-place at the mill site. After remediation of the tailings was completed, theState and DOE began to investigate the residual impacts to groundwater at the mill sites. The groundwater phaseof the UMTRA program is on-going.



ASBESTOS: Asbestos Abatement & Demolition ProjectsAsbestos abatement and demolition projects by the contractor.


Source: Department of Public Health & EnvironmentTelephone: 303-692-3100Last EDR Contact: 05/13/2013Next Scheduled EDR Contact: 08/26/2013Data Release Frequency: Semi-Annually

INDIAN RESERV: Indian ReservationsThis map layer portrays Indian administered lands of the United States that have any area equal to or greaterthan 640 acres.


Source: USGSTelephone: 202-208-3710Last EDR Contact: 07/19/2013Next Scheduled EDR Contact: 10/28/2013Data Release Frequency: Semi-Annually

SCRD DRYCLEANERS: State Coalition for Remediation of Drycleaners ListingThe State Coalition for Remediation of Drycleaners was established in 1998, with support from the U.S. EPA Officeof Superfund Remediation and Technology Innovation. It is comprised of representatives of states with establisheddrycleaner remediation programs. Currently the member states are Alabama, Connecticut, Florida, Illinois, Kansas,Minnesota, Missouri, North Carolina, Oregon, South Carolina, Tennessee, Texas, and Wisconsin.



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FEDLAND: Federal and Indian LandsFederally and Indian administrated lands of the United States. Lands included are administrated by: Army Corpsof Engineers, Bureau of Reclamation, National Wild and Scenic River, National Wildlife Refuge, Public Domain Land,Wilderness, Wilderness Study Area, Wildlife Management Area, Bureau of Indian Affairs, Bureau of Land Management,Department of Justice, Forest Service, Fish and Wildlife Service, National Park Service.


Source: U.S. Geological SurveyTelephone: 888-275-8747Last EDR Contact: 07/19/2013Next Scheduled EDR Contact: 10/28/2013Data Release Frequency: N/A

US FIN ASSUR: Financial Assurance InformationAll owners and operators of facilities that treat, store, or dispose of hazardous waste are required to provideproof that they will have sufficient funds to pay for the clean up, closure, and post-closure care of their facilities.



2020 COR ACTION: 2020 Corrective Action Program ListThe EPA has set ambitious goals for the RCRA Corrective Action program by creating the 2020 Corrective ActionUniverse. This RCRA cleanup baseline includes facilities expected to need corrective action. The 2020 universecontains a wide variety of sites. Some properties are heavily contaminated while others were contaminated buthave since been cleaned up. Still others have not been fully investigated yet, and may require little or no remediation.Inclusion in the 2020 Universe does not necessarily imply failure on the part of a facility to meet its RCRA obligations.



LEAD SMELTER 2: Lead Smelter SitesA list of several hundred sites in the U.S. where secondary lead smelting was done from 1931and 1964. These sitesmay pose a threat to public health through ingestion or inhalation of contaminated soil or dust


Source: American Journal of Public HealthTelephone: 703-305-6451Last EDR Contact: 12/02/2009Next Scheduled EDR Contact: N/AData Release Frequency: No Update Planned

LEAD SMELTER 1: Lead Smelter SitesA listing of former lead smelter site locations.



Financial Assurance 2: Financial Assurance Information ListingA listing of financial assurance information for solid waste facilities. Financial assurance is intended to ensurethat resources are available to pay for the cost of closure, post-closure care, and corrective measures if theowner or operator of a regulated facility is unable or unwilling to pay.

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MINES: Permitted Mines ListingThis dataset represents permitted mines in the State of Colorado


Source: Division of Reclamation Mining and safetyTelephone: 303-866-3567Last EDR Contact: 12/26/2012Next Scheduled EDR Contact: N/AData Release Frequency: Varies

US AIRS (AFS): Aerometric Information Retrieval System Facility Subsystem (AFS)The database is a sub-system of Aerometric Information Retrieval System (AIRS). AFS contains compliance dataon air pollution point sources regulated by the U.S. EPA and/or state and local air regulatory agencies. Thisinformation comes from source reports by various stationary sources of air pollution, such as electric power plants,steel mills, factories, and universities, and provides information about the air pollutants they produce. Action,air program, air program pollutant, and general level plant data. It is used to track emissions and compliancedata from industrial plants.



US AIRS MINOR: Air Facility System DataA listing of minor source facilities.



EPA WATCH LIST: EPA WATCH LISTEPA maintains a "Watch List" to facilitate dialogue between EPA, state and local environmental agencies on enforcementmatters relating to facilities with alleged violations identified as either significant or high priority. Beingon the Watch List does not mean that the facility has actually violated the law only that an investigation byEPA or a state or local environmental agency has led those organizations to allege that an unproven violationhas in fact occurred. Being on the Watch List does not represent a higher level of concern regarding the allegedviolations that were detected, but instead indicates cases requiring additional dialogue between EPA, state andlocal agencies - primarily because of the length of time the alleged violation has gone unaddressed or unresolved.



PRP: Potentially Responsible PartiesA listing of verified Potentially Responsible Parties



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PCB TRANSFORMER: PCB Transformer Registration DatabaseThe database of PCB transformer registrations that includes all PCB registration submittals.



COAL ASH DOE: Sleam-Electric Plan Operation DataA listing of power plants that store ash in surface ponds.


Source: Department of EnergyTelephone: 202-586-8719Last EDR Contact: 07/19/2013Next Scheduled EDR Contact: 10/28/2013Data Release Frequency: Varies

COAL ASH EPA: Coal Combustion Residues Surface Impoundments ListA listing of coal combustion residues surface impoundments with high hazard potential ratings.


Source: Environmental Protection AgencyTelephone: N/ALast EDR Contact: 06/14/2013Next Scheduled EDR Contact: 09/23/2013Data Release Frequency: Varies

Financial Assurance 1: Financial Assurance Information ListingA listing of financial assurance information for hazardous waste facilities. Financial assurance is intended toensure that resources are available to pay for the cost of closure, post-closure care, and corrective measuresif the owner or operator of a regulated facility is unable or unwilling to pay.





EDR MGP: EDR Proprietary Manufactured Gas PlantsThe EDR Proprietary Manufactured Gas Plant Database includes records of coal gas plants (manufactured gas plants)compiled by EDR’s researchers. Manufactured gas sites were used in the United States from the 1800’s to 1950’sto produce a gas that could be distributed and used as fuel. These plants used whale oil, rosin, coal, or a mixtureof coal, oil, and water that also produced a significant amount of waste. Many of the byproducts of the gas production,such as coal tar (oily waste containing volatile and non-volatile chemicals), sludges, oils and other compoundsare potentially hazardous to human health and the environment. The byproduct from this process was frequentlydisposed of directly at the plant site and can remain or spread slowly, serving as a continuous source of soiland groundwater contamination.


Source: EDR, Inc.Telephone: N/ALast EDR Contact: N/ANext Scheduled EDR Contact: N/AData Release Frequency: No Update Planned

EDR US Hist Auto Stat: EDR Exclusive Historic Gas StationsEDR has searched selected national collections of business directories and has collected listings of potentialgas station/filling station/service station sites that were available to EDR researchers. EDR’s review was limitedto those categories of sources that might, in EDR’s opinion, include gas station/filling station/service stationestablishments. The categories reviewed included, but were not limited to gas, gas station, gasoline station,filling station, auto, automobile repair, auto service station, service station, etc. This database falls withina category of information EDR classifies as "High Risk Historical Records", or HRHR. EDR’s HRHR effort presentsunique and sometimes proprietary data about past sites and operations that typically create environmental concerns,but may not show up in current government records searches.

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Source: EDR, Inc.Telephone: N/ALast EDR Contact: N/ANext Scheduled EDR Contact: N/AData Release Frequency: Varies

EDR US Hist Cleaners: EDR Exclusive Historic Dry CleanersEDR has searched selected national collections of business directories and has collected listings of potentialdry cleaner sites that were available to EDR researchers. EDR’s review was limited to those categories of sourcesthat might, in EDR’s opinion, include dry cleaning establishments. The categories reviewed included, but werenot limited to dry cleaners, cleaners, laundry, laundromat, cleaning/laundry, wash & dry etc. This database fallswithin a category of information EDR classifies as "High Risk Historical Records", or HRHR. EDR’s HRHR effortpresents unique and sometimes proprietary data about past sites and operations that typically create environmentalconcerns, but may not show up in current government records searches.


Source: EDR, Inc.Telephone: N/ALast EDR Contact: N/ANext Scheduled EDR Contact: N/AData Release Frequency: Varies

EDR US Hist Auto Stat: EDR Proprietary Historic Gas Stations - Cole


Source: N/ATelephone: N/ALast EDR Contact: N/ANext Scheduled EDR Contact: N/AData Release Frequency: Varies

EDR US Hist Cleaners: EDR Proprietary Historic Dry Cleaners - Cole


Source: N/ATelephone: N/ALast EDR Contact: N/ANext Scheduled EDR Contact: N/AData Release Frequency: Varies

COUNTY RECORDS

ADAMS COUNTY:

Summary Report on Methane Gas Hazards and Surveys Conducted on Domestic and Demolition Landfills in Adams CountyAs of May 8, 1978, all known landfills or dumping sites in the Adams County area have been surveyed.


Source: Tri-County Health DepartmentTelephone: 303-761-1340Last EDR Contact: 01/27/1995Next Scheduled EDR Contact: N/AData Release Frequency: No Update Planned

ARAPAHOE COUNTY:

A Survey of Landfills in Arapahoe CountyA survey of Arapahoe County was conducted from August through November, 1977, of all open and closed landfillsand dumpsites in the county. Each of the sites found was classified as domestic or demolition.



BOULDER COUNTY:

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Old Landfill SitesLandfill sites in Boulder county.


Source: Boulder County Health DepartmentTelephone: 303-441-1182Last EDR Contact: 01/30/1998Next Scheduled EDR Contact: N/AData Release Frequency: No Update Planned

DENVER COUNTY:

Landfills in Denver CountyLandfill sites in the city and county of Denver.


Source: City and County of DenverTelephone: 303-436-7300Last EDR Contact: 12/07/2012Next Scheduled EDR Contact: N/AData Release Frequency: No Update Planned

Investigation of Methane Gas HazardsThe purpose of this study was to assess the actual and potential generation, migration, explosive and relatedproblem associated with specified old landfills, and to identify existing and potential problems, suggested strategiesto prevent, abate, and control such problems and recommend investigative and monitoring functions as may be deemednecessary. Eight sites determined to be priorities due to population density and potential hazards to populationand property were selected by the Colorado Department of Health.


Source: City and County of Denver Department of Environmental HealthTelephone: 720-865-5522Last EDR Contact: 01/15/2013Next Scheduled EDR Contact: N/AData Release Frequency: No Update Planned

DOUGLAS COUNTY:

Douglas County Landfill KeyLandfill sites in Douglas county.



PUEBLO COUNTY:

Designated Disposal & Landfill SitesOnly inert materials. Asphalt, cement, dirt & rock unless otherwise specified. These sites are no longer active.


Source: Pueblo City-County Health DepartmentTelephone: 719-583-4300Last EDR Contact: 11/13/1995Next Scheduled EDR Contact: N/AData Release Frequency: No Update Planned

TRI COUNTY:

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Tri-County Area Solid Waste Facilities List (Adams, Arapahoe and Douglas Counties)Closed Domestic Landfills in Adams County, Closed Domestic Landfills in Arapahoe County, Closed Demolition Landfillsin Arapahoe County, Closed Domestic Landfills in Douglas County.



WELD COUNTY:

Solid Waste Facilities in Weld CountySolid Waste Facilities in Weld County.


Source: Weld County Department of Public HealthTelephone: 970-304-6415Last EDR Contact: 05/10/2013Next Scheduled EDR Contact: 08/26/2013Data Release Frequency: No Update Planned

OTHER DATABASE(S)

Depending on the geographic area covered by this report, the data provided in these specialty databases may or may not becomplete. For example, the existence of wetlands information data in a specific report does not mean that all wetlands in thearea covered by the report are included. Moreover, the absence of any reported wetlands information does not necessarilymean that wetlands do not exist in the area covered by the report.

CT MANIFEST: Hazardous Waste Manifest DataFacility and manifest data. Manifest is a document that lists and tracks hazardous waste from the generator throughtransporters to a tsd facility.


Source: Department of Energy & Environmental ProtectionTelephone: 860-424-3375Last EDR Contact: 05/21/2013Next Scheduled EDR Contact: 09/02/2013Data Release Frequency: Annually

NY MANIFEST: Facility and Manifest DataManifest is a document that lists and tracks hazardous waste from the generator through transporters to a TSDfacility.


Source: Department of Environmental ConservationTelephone: 518-402-8651Last EDR Contact: 05/09/2013Next Scheduled EDR Contact: 08/19/2013Data Release Frequency: Annually

PA MANIFEST: Manifest InformationHazardous waste manifest information.


Source: Department of Environmental ProtectionTelephone: 717-783-8990Last EDR Contact: 07/18/2013Next Scheduled EDR Contact: 11/04/2013Data Release Frequency: Annually

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WI MANIFEST: Manifest InformationHazardous waste manifest information.


Source: Department of Natural ResourcesTelephone: N/ALast EDR Contact: 07/17/2013Next Scheduled EDR Contact: 09/30/2013Data Release Frequency: Annually

Oil/Gas Pipelines: This data was obtained by EDR from the USGS in 1994. It is referred to by USGS as GeoData Digital Line Graphsfrom 1:100,000-Scale Maps. It was extracted from the transportation category including some oil, but primarilygas pipelines.

Electric Power Transmission Line DataSource: Rextag Strategies Corp.Telephone: (281) 769-2247U.S. Electric Transmission and Power Plants Systems Digital GIS Data

Sensitive Receptors: There are individuals deemed sensitive receptors due to their fragile immune systems and special sensitivityto environmental discharges. These sensitive receptors typically include the elderly, the sick, and children. While the location of allsensitive receptors cannot be determined, EDR indicates those buildings and facilities - schools, daycares, hospitals, medical centers,and nursing homes - where individuals who are sensitive receptors are likely to be located.

AHA Hospitals:Source: American Hospital Association, Inc.Telephone: 312-280-5991The database includes a listing of hospitals based on the American Hospital Association’s annual survey of hospitals.

Medical Centers: Provider of Services ListingSource: Centers for Medicare & Medicaid ServicesTelephone: 410-786-3000A listing of hospitals with Medicare provider number, produced by Centers of Medicare & Medicaid Services,a federal agency within the U.S. Department of Health and Human Services.

Nursing HomesSource: National Institutes of HealthTelephone: 301-594-6248Information on Medicare and Medicaid certified nursing homes in the United States.

Public SchoolsSource: National Center for Education StatisticsTelephone: 202-502-7300The National Center for Education Statistics’ primary database on elementaryand secondary public education in the United States. It is a comprehensive, annual, national statisticaldatabase of all public elementary and secondary schools and school districts, which contains data that arecomparable across all states.

Private SchoolsSource: National Center for Education StatisticsTelephone: 202-502-7300The National Center for Education Statistics’ primary database on private school locations in the United States.

Daycare Centers: Daycare ListingSource: Department of Human ServicesTelephone: 303-866-5958

Flood Zone Data: This data, available in select counties across the country, was obtained by EDR in 2003 & 2011 from the FederalEmergency Management Agency (FEMA). Data depicts 100-year and 500-year flood zones as defined by FEMA.

NWI: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDRin 2002 and 2005 from the U.S. Fish and Wildlife Service.

State Wetlands Data: Riparian Vegetation DataSource: Division of WildlifeTelephone: 970-416-3360

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Scanned Digital USGS 7.5’ Topographic Map (DRG)Source: United States Geologic SurveyA digital raster graphic (DRG) is a scanned image of a U.S. Geological Survey topographic map. The map imagesare made by scanning published paper maps on high-resolution scanners. The raster imageis georeferenced and fit to the Universal Transverse Mercator (UTM) projection.

STREET AND ADDRESS INFORMATION

© 2010 Tele Atlas North America, Inc. All rights reserved. This material is proprietary and the subject of copyright protectionand other intellectual property rights owned by or licensed to Tele Atlas North America, Inc. The use of this material is subjectto the terms of a license agreement. You will be held liable for any unauthorized copying or disclosure of this material.

TC3674217.1s Page GR-25


Certified Sanborn® Map Report

First Creek Improvement Project

First Creek At East 56th Avenue

Denver, CO 80249

Inquiry Number: 3674217.2

July 23, 2013

Certified Sanborn® Map Report 7/23/13

Site Name:First Creek ImprovementFirst Creek At East 56thDenver, CO 80249

Client Name:ERO Resources1842 Clarkson StreetDenver, CO 80218

Contact: Courtney SockwellEDR Inquiry # 3674217.2

The complete Sanborn Library collection has been searched by EDR, and fire insurance maps covering the targetproperty location provided by ERO Resources were identified for the years listed below. The certified Sanborn Librarysearch results in this report can be authenticated by visiting www.edrnet.com/sanborn and entering the certificationnumber. Only Environmental Data Resources Inc. (EDR) is authorized to grant rights for commercial reproduction ofmaps by Sanborn Library LLC, the copyright holder for the collection.

Certified Sanborn Results:

Site Name: First Creek Improvement ProjectAddress: First Creek At East 56th AvenueCity, State, Zip: Denver, CO 80249Cross Street:P.O. # NAProject: 4912Certification # 852B-4BF0-8771

Library of Congress

University Publications of America

EDR Private Collection

The Sanborn Library LLC Since 1866™

The Sanborn Library includes more than 1.2 millionSanborn fire insurance maps, which track historicalproperty usage in approximately 12,000 Americancities and towns. Collections searched:

Sanborn® Library search resultsCertification # 852B-4BF0-8771

UNMAPPED PROPERTYThis report certifies that the complete holdings of the SanbornLibrary, LLC collection have been searched based on clientsupplied target property information, and fire insurance mapscovering the target property were not found.

Limited Permission To Make CopiesERO Resources (the client) is permitted to make up to THREE photocopies of this Sanborn Map transmittal and each fire insurance mapaccompanying this report solely for the limited use of its customer. No one other than the client is authorized to make copies. Upon request madedirectly to an EDR Account Executive, the client may be permitted to make a limited number of additional photocopies. This permission isconditioned upon compliance by the client, its customer and their agents with EDR's copyright policy; a copy of which is available upon request.

Disclaimer - Copyright and Trademark noticeThis Report contains certain information obtained from a variety of public and other sources reasonably available to Environmental Data Resources, Inc. It cannot beconcluded from this Report that coverage information for the target and surrounding properties does not exist from other sources. NO WARRANTY EXPRESSED ORIMPLIED, IS MADE WHATSOEVER IN CONNECTION WITH THIS REPORT. ENVIRONMENTAL DATA RESOURCES, INC. SPECIFICALLY DISCLAIMS THEMAKING OF ANY SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE. ALLRISK IS ASSUMED BY THE USER. IN NO EVENT SHALL ENVIRONMENTAL DATA RESOURCES, INC. BE LIABLE TO ANYONE, WHETHER ARISING OUT OFERRORS OR OMISSIONS, NEGLIGENCE, ACCIDENT OR ANY OTHER CAUSE, FOR ANY LOSS OF DAMAGE, INCLUDING, WITHOUT LIMITATION, SPECIAL,INCIDENTAL CONSEQUENTIAL, OR EXEMPLARY DAMAGES. ANY LIABILITY ON THE PART OF ENVIRONMENTAL DATA RESOURCES, INC. IS STRICTLYLIMITED TO A REFUND OF THE AMOUNT PAID FOR THIS REPORT. Purchaser accepts this Report "AS IS". Any analyses, estimates, ratings, environmental risklevels or risk codes provided in this Report are provided for illustrative purposes only, and are not intended to provide, nor should they be interpreted as providingany facts regarding, or prediction or forecast of, any environmental risk for any property. Only a Phase I Environmental Site Assessment performed by anenvironmental professional can provide information regarding the environmental risk for any property. Additionally, the information provided in this Report is not to beconstrued as legal advice.

Copyright 2013 by Environmental Data Resources, Inc. All rights reserved. Reproduction in any media or format, in whole or in part, of any report or map ofEnvironmental Data Resources, Inc., or its affiliates, is prohibited without prior written permission.

EDR and its logos (including Sanborn and Sanborn Map) are trademarks of Environmental Data Resources, Inc. or its affiliates. All other trademarks used herein arethe property of their respective owners.

3674217 - 2 page 2

APPENDIX C —

QUALIFICATIONS OF ENVIRONMENTAL PROFESSIONALS


Courtney SockwellEnvironmental Scientist/Geologist

Courtney has twelve years ofexperience in the environmentalfield, working on Phase I and IIEnvironmental Site Assessments(ESAs); site characterization andmonitoring; surface andsubsurface soil and ground waterinvestigations; contaminationexcavation; remediation systemdesign, installation, andoperation; and solid andhazardous waste management.

EducationB. S. 2000, Stephen F. Austin StateUniversity, Double Major in Geologyand Environmental ScienceCDOT Erosion Control Supervisor Training CDPHE-WQCD Training forStormwater Compliance Inspectors

Certifications and Affiliations1910.120(e) 40-Hour HazardousWaste Operation and EmergencyResponse, with Annual 8-HourRefreshers

LicensureListed Environmental Scientist,Colorado Department of Labor andEmployment, Division of Oil andPublic Safety, Listing No. #6122.

ERO Resources Corporationwww.eroresources.com

Representative Experience

The City of Boulder, CO Assisted the City of Boulder with characterizationand disposal of petroleum contaminated soil associated with a utility projectand allowed the utility installation to continue without significant delay.

Dover Industries, Inc., CO Assisted with site characterization andmonitoring, source area remediation, excavations, and operation ofcontainment and treatment system for chlorinated hydrocarbon-contaminatedground water.

KB Home of Colorado, Inc. Various Projects, CO Conducted Phase IEnvironmental Site Assessments (ESAs) and Phase II Site Investigations onnumerous parcels within the former Stapleton Airport and other proposeddevelopment sites.

FHWA Materials Laboratory Spill Cleanup, CO Waste Specialist for wastemanagement activities associated with Federal Highway Administration’sMaterials Laboratory Spill Cleanup Project on the Denver Federal Center.

City of Thornton, Various Projects, CO Assists in the management ofgeneral environmental services contract with the City of Thornton. Projectshave included numerous Phase I and Phase II ESAs for undeveloped openspace and various infrastructure improvement projects.

Prairie Waters Project, CO Field manager for environmental siteinvestigations for the City of Aurora’s near-term plan for a new water supplysource and treatment facilities.

Muller Engineering, Inc. Various Projects, CO Project manager for Phase Iand Phase II ESAs for various CDOT and county road construction projectsalong the Front Range.

General Services Administration, Denver Federal Center, CO Fieldgeologist for numerous site investigations at the Denver Federal Center.Activities included monitoring well installation and sampling, stream flowmeasurements and sediment sampling, ground water seep measurements,and waste management.

TSH Engineering, Inc. Various Projects, CO Project manager for Phase Iand Phase II ESAs for various CDOT and county road construction projectsalong the Front Range.

UST Removal and Closure, Cortez, CO Project/Field Manager for theremoval and closure of two UST’s at a public school transportation facility.

The Trust for Public Land, CO Conducted Phase I ESA’s for numerous OpenSpace and Conservation Easement properties within Colorado.

Craig SovkaGeologist

Craig has 16 years of consultingexperience in the environmentalfield, including Phase I and IIenvironmental site assessments,site characterization and moni-toring, surface and subsurfacesoil and water investigations, andremediation system design,installation, and operation.

EducationB.S. 1992, Geology, Princeton University

LicensureListed Environmental Scientist,Colorado Department of Labor andEmployment, Division of Oil andPublic Safety, Listing No. #5784

Certifications aand AAffiliationsOSHA 1910.120(e) 40-hour Hazardous WasteOperations and EmergencyResponse, with Annual 8-HourRefreshersFirefighter I, National Board on FireService Professional Qualifications,1994

ERO Resources Corporationwww.eroresources.com

Representative Experience

Dover Industries, Inc., Boulder, CO Ground water investigations andoperation of containment and treatment system for chlorinated hydrocarbon-contaminated ground water at a manufacturing facility.

City of Aurora, Havana North Environmental Assessment, CO Fieldmanager for a limited Phase I environmental site assessment for 40 parcelsacross 88 acres. Parcels included commercial, light industrial, and vacantlands with known or suspect contamination.

Power Engineering Company, Denver, CO Field manager for soil andground water investigations to delineate the source and extent ofcontamination at a chrome plating facility. Assisted in the design,construction, and operation of an innovative treatment system to remediatehexavalent chromium-contaminated soil and ground water.

Dry Cleaner Investigations and Remediation, CO Field manager for soiland ground water investigations to delineate the source and extent of drycleaner solvent contamination at several former and active dry cleanerfacilities. Designed and implemented in-situ treatment strategies toremediate contaminated soil and ground water.

New Mexico Interstate Stream Commision Pecos River Basin, NM Projectmanager for site assessments at numerous farm and ranch properties in thePecos River Basin. The New Mexico Interstate Stream Commission is in theprocess of acquiring up to 18,000 acres of land and water rights in the riverbasin and requires an evaluation of environmental conditions prior topurchasing each property.

Colorado Bumper Exchange, Pueblo, CO Project manager for soil andground water investigations to delineate the source and extent ofcontamination at a chrome and nickel plating facility.

Vista Ridge Development Corp., CO Field manager for all environmentalissues associated with the development of a new 900-acre golf coursecommunity in Erie, Colorado. Services included Phase I environmental siteassessments on numerous parcels, remediation of oil and gas well productionwaste, and the preparation and implementation of a Voluntary Cleanup Planof a 50-year old rifle and skeet shooting range.

St. Joseph Hospital, Denver, CO Project manager for underground storagetank investigations of numerous diesel fuel tanks for the hospital’s emergencypower generators, including site characterization, oversight of tank removal,and the preparation and implementation of a Corrective Action Plan.Prepared No Further Action Request forms and received closure of all tanksfrom the regulatory agency.

Foxhoven Tire Center, Sterling, CO Project manager for ground watermonitoring and operation and maintenance of a ground water treatmentsystem at a former gasoline service station.

Thompson Gravel Pit, Granby, CO Provided a hydrogeological evaluationfor the expansion of an existing gravel mine operation to prove lack ofimpacts to nearby ground water users. Testified at county hearings.

Rocky's Autos, Adams County, CO Completed soil corings and aquifertesting to model the effects of a subsurface leak from an undergroundstorage tank on downgradient properties.

City and County of Broomfield, CO Phase I and II environmental siteassessments at numerous properties purchased by Broomfield for OpenSpace preservation.


APPENDIX D —

PHASE I ESA WORK SCOPE

ERO

Resources

Corporation

WORK SCOPE


Summary

ERO Resources Corporation (ERO) will conduct a Phase I Environmental Site

Assessment1

(ESA) of the subject property. The ESA will consist of a visual

inspection of the subject property, interviews with the property owner, project

manager, and key site manager, and a compilation and review of publicly available

information from a variety of sources about past and current environmental conditions

at the subject property. ERO will provide the Client with a written report including a

detailed presentation of findings.

Tasks

Site reconnaissance. ERO will conduct a visual site reconnaissance of the subject

property. The purpose of the inspection is to document recognized environmental

conditions. Photographs will be taken as appropriate. ERO will not take any samples

during the site reconnaissance. The following issues are specifically excluded from

this ESA—wetlands, migratory birds, asbestos-containing materials, radon, lead-based

paint, lead in drinking water, mold, and subsurface mineral rights, leases, or

ownership.

ERO will document the general site setting, such as current use(s) of the subject

property and adjoining properties, and general hydrogeologic and topographic

features. A general description of structures and other improvements on the subject

property will be provided.

ERO will identify the following site conditions, if they are visually or physically

observed, during the site reconnaissance—

The quantity, type, and storage system for hazardous substances and petroleum

products in connection with identified uses

Tanks, containers, drums, barrels, and other systems used for storing hazardous

substance and petroleum products not connected to identified uses

Aboveground and underground storage tanks

1 According to ASTM 1527-05: “Standard Practice for Environmental Site

Assessments: Phase I Environmental Site Assessment Process.”

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ERO

Resources

Corporation

Pits, ponds, lagoons and other features potentially used for storage and/or

disposal of hazardous substances and petroleum product

Odors, pools of liquids, stained soils and pavement, and stressed vegetation

Presence of electrical equipment potentially containing PCBs.

Interviews. ERO will conduct interviews with the ESA user, property owner, site

manager and/or other persons with knowledge of the subject property.

File search and regulatory agency review. ERO will conduct a search of records

and files from a variety of sources, and compile existing information pertaining to

current and past environmental conditions. This search may include the following

information, as ERO deems appropriate—

Topographic, land use, and environmental resource maps

Aerial photographs

County and city records

State and federal databases

Vapor Encroachment Screening. ERO will evaluate the sites identified during

the Records Review to evaluate potential vapor encroachment in accordance with

ASTM E 2600-10, the “Standard Guide for Vapor Encroachment Screening on

Property Involved in Real Estate Transactions” (ASTM 2010). ERO will conduct a

Tier 1 Screening using information presented in the Phase I ESA records review to

whether a Vapor Encroachment Condition VEC exists, likely exists, or cannot be ruled

out for the property. The results of this screening will be included in the Phase I ESA

report. No sampling or testing is included with the screening.

Reports and recommendations. Based on the information gathered during the

above tasks, ERO will compile the information and findings in a written report for the

subject property. The report will contain a detailed presentation of findings, including

the site description, records review, site reconnaissance, and conclusions.

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ERO

Resources

Corporation

Assumptions and Conditions

It is important to emphasize that considerable uncertainty is inherent in conducting

this type of investigation. The ESA will be completed by qualified environmental

professionals using that degree of care and skill ordinarily exercised under similar

circumstances by other environmental professionals practicing in this field.

Unforeseen conditions may significantly affect the ability to make conclusions and

recommendations based solely on the proposed investigations, which may ultimately

affect the level of risk for a given level of investigative effort and cost. The following

assumptions and conditions describe some of the possible limitations under this Work

Scope.

1. ERO assumes the subject property will not present conditions that may be

hazardous to the health and safety of ERO personnel. The presence of visible

hazards or contamination may be sufficient cause for ERO to halt work

immediately and request a meeting with the Client to discuss to the problem.

2. All work will be conducted according to the provisions given in this Work Scope

and in the accompanying Terms and Conditions. No other specifications or

guidelines have been agreed to, nor will any such specifications or guidelines be

addressed except as will otherwise be according to this Work Scope.

3. Adequate and timely access to the subject property to conduct the ESA is assumed.

Written authorization or other arrangements as may be necessary to ensure access

by ERO personnel will be provided by the Client.

4. Any conditions, known or suspected to the Client, that may have bearing on these

investigations, or to the findings or recommendations made pursuant to this Work

Scope, will be disclosed to ERO before initiation of the Work Scope. The Client

will make available to ERO any appraisal reports, title histories, engineering

reports or other technical reports or information that may pertain to this

investigation.

5. All references, statements or recommendations in this Work Scope or in any

subsequent written reports to substances being either hazardous or not hazardous

are made solely in accordance with or in reference to such official designations

made by government agencies or other authorities under applicable laws,

regulations, or guidelines. ERO itself makes no claim, warranty or implication as

to whether any substance may or may not be hazardous.

6. This Work Scope does not include an assessment of the potential for any particular

condition adversely to affect public health.

7. Any laboratory analytical work will be conducted by a laboratory or laboratories

under separate contract or subcontract. While ERO will endeavor to select

qualified laboratories for sample analysis, ERO will accept no responsibility or

liability for laboratory results, quality control or analytical turnaround time.

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Resources

Corporation

8. Deviations from these assumptions may result in cost increases or changes in

schedule.

9. All site boundaries shown or discussed in the report are approximations based on

information supplied by the Client. ERO Resources will accept no responsibility

or liability for the accuracy of the site boundaries.

10. The Client will be responsible for completing the user questionnaire, obtaining a

map/survey of the subject property, determining property size, and forwarding

these items to ERO at least five days before the date of project completion.

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