JONATHAN Z CANNON NCW YORK N.V, . IOI7B IZIfl 597-335S ...different investigatory approac tho any...

SDMS DocID 250685

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BEVERIDGE & DIAMOND. R C. ALBERT j B C V E R T O G t HI 1333 NEW HAMPSHIRE AVENUE. N. W. OABr - D»i5C DIAMOND HAROLD HIMUCI.UAN SUITE asoo CMRISTO»"ER « •UC«l.Cy. WASHINGTON, D C. ZOO36

1O< PAPK AVCNUC JONATHAN Z CANNON NCW YORK, N.V. IOI7B ALEXANDER W SIEftCK

STEPHEN I. GORDON

IZIfl 597-335S JOHN N HANSON /NOREW C MISHKIN RO1ERT C WILLIAMS TCLCCOPItn

BEVERIDGE & DIAMOND P C

Heather M. Ford, Chief September 4, 1986 Page 2

EPA's information request is based on the authority of Section 3007 of the Resource Conservation and Recovery Act ("RCRA") and Section 104(e) of the Comprehensive Environmental Response, Compensation, and Liability Act ("CERCLA"). Section 3007 of RCRA provides that H[f]or purposes of developing or assisting in the development of any regulation or enforcing the provisions of this title, any person who generates, stores,, treats, transports, dispose^ of, oj: otherwise handles or lias handled hazardous wastes shall, upon request of [EPA]. . . furnish information relating to such wastes." (Emphasis supplied). Section 104(e) of CERCLA provides that "[f]or purposes of assisting in determining the need for response to a release under this title or enforcing the provisions of this title, any peyspn who stô eŝ treats• or disposes oJL, or where necessary to ascertain facts not available at the facility where such hazardous substances are located, who generates, transports, ar. otherwise handles or has handled hazardous substances shall, upon request of [EPA] . . .furnish information relating to such substances. ..." (Emphasis supplied.)(These provisions may be profitably contrasted with other provisions of RCRA and CERCLA which impose obligations on M owners and operators" of facilities. See, e.g.. RCRA, § 3004; CERCLA, § 107.) As indicated below, Bardanise has never generated, stored, treated, transported, disposed of, or otherwise handled hazardous wastes or hazardous substances. Consequently, EPA does not possess the statutory authority under either RCRA or CERCLA to make these requests to Bardanise. However, in a spirit of cooperation with EPA, Bardanise voluntarily is providing EPA with the information EPA has requested.

As the enclosed scale map indicates, the only land Bardanise has owned in the area referenced by EPA in its July 29 letter is the contiguous piece of property located at 272-280 Main Avenue in Korwalk (also referred to as "272-276 Main Avenue" in previous Bardanise correspondence to EPA). This land is occupied by three buildings, identified as Buildings #1, 2, and 3 on the scale map. Bardanise has never "operated", i.e,. conducted manufacturing or other industrial activities in, any of these buildings or elsewhere on this land. The past occupants of this property have included Zell Products Corporation (no longer in existence); Veritron West (no longer in existence), a division of Alloys, Unlimited (located in Long Island, New York), in turn a division of Plessey, Inc. (located in London, England); Vernitron Electrical Components, Inc. (located in Lake Success Park, Great Neck, New York); and EDO Corporation (Elinco Division)(located in College Point, New York). The current occupants of this property are Pitney Bowes and Electric Indicator Company, Inc. ("Elinco").

BEVERIDGE & DIAMOND P C


EPA's July 29 letter also inquired as to the status of any voluntary action, discussions with state or local authorities, or lawsuit in which Bardanise might be engaged regarding this property. Bardanise is not involved in a lawsuit pertaining to this site. Pursuant to a consent agreement entered into with the Connecticut Department of Environmental Protection ("DEP") on August 19, 1985, Bardanise voluntarily agreed to undertake a comprehensive hydrogeologic and engineering investigation defining the extent and degree of any chemical contamination which may exist at 272 Main Avenue. Although this agreement was directed to 272 Main Avenue, the actual investigation covered the entire property at 272-280 Main Avenue. A hydrogeologic investigation report satisfying the terms of that agreement was submitted to DEP on June 30, 1986. A copy of that report is enclosed for your information. Bardanise has continued to engage in discussions with DEP regarding the progress and results of that investigation.

EPA's letter to Bardanise infers that Bardanise is potentially liable for response costs associated with the Kellogg-Deering site and encourages Bardanise to voluntarily undertake unspecified "cleanup activities which will be overseen by the EPA." As explained more fully in my July 28 letter to Ivan Rios of EPA regarding the Agency's Remedial Investigation Report ("RI") for the Kellogg-Deering site, EPA's RI is inadequate to demonstrate that the Bardanise property is responsible in any manner for the contamination of the Kellogg-Deering well field or at the other zones of anomalously high tricholoroethylene ("TCE") concentrations which have been discovered elsewhere in the study area and may be contributing to the well field contamination. To the contrary, the report prepared by Versar, Inc. on behalf of Bardanise demonstrated that Bardanise could not be responsible for that contamination even under worst case conditions. My letter to Mr. Rios invited EPA to provide Bardanise with any disagreements the Agency might have with the technical analyses provided by Versar. To date, Bardanise has received no such response from the Agency. Although Bardanise is willing to discuss with EPA any specific response activities the Agency may have in mind, we respectfully suggest that a response to our technical comments should precede any such discussions.

In the interim, Bardanise continues to believe that EPA's evaluation to date of parties who may actually be responsible for the contamination at the well field and the zones of significantly elevated TCE concentrations has been incomplete. My July 28 letter to Mr. Rios provided EPA with extensive information which would appear to be useful for a responsible investigation of potentially responsible parties ("PRPs").

BEVERIDGE & DIAMOND PC


Bardanise urges the Agency, if it still intends to undertake a Phase II investigation of the study area, to use that investigation as an opportunity to determine what parties have actually contributed to the Kellogg-Deering well field contamination. We recommend, however, that EPA take a different investigatory approach to any Phase II study than that adopted for the RI. In particular, we suggest that an extensive program of vadose zone monitoring be conducted in those areas most likely to represent possible sources of TCE or other relevant contamination in the study area. Because data on groundwater contamination concentrations are available from the RI/ it should be possible to differentiate between those areas affected by gas-phase contaminants derived from the groundwater and those present in the vadose zone as a result of a spill or other discharge. Thus, it may be possible to delineate those locations where past discharges represent continuing sources of contamination.

The vadose zone survey should be concentrated in those areas where there are known or suspected users of volatile organic compounds, especially in areas where discharges have been documented or are likely based on existing evidence. As a general matter, the areas to the north of RI Zone 4 and to the northeast of RI Zone 2 should be examined. Attached is a list of selected locations which, based on the indicated available information, seem to represent good candidates for further investigation. Additional information on these locations may be found in the material submitted with my July 28 letter to Mr. Rios.

In keeping with EPA's national policy regarding the release of PRP names to other PRPs identified at a particular site by EPA, Bardanise requests Region I to provide it with the names of any PRPs the Agency identifies and notifies beyond those listed in EPA's July 29 letter to Bardanise. In addition, I would appreciate it if you would address all future correspondence to Bardanise regarding the Kellogg-Deering site to me.

Sincerely yours,

Karl S. Bourdeau

cc: William Walsh-Rogalski (w/out enclosures) Enclosures KSBrssh 0330E

September 4, 1986

SELECTED LIST OF POSSIBLE CONTAMINANT SOURCE LOCATIONS

KELLOGG-DEERING WELLFIELD AREA

Aqualux Water Process - 15 Perry Street

-Machine Shop Operation

-In Vicinity of Zone 4 in EPA Remedial Investigation

Report ("RI")

-Connecticut Department of Health Services

Documentation of Apparent Discharge From Pipe on West Side of Building

-First District Water Department ("FDWD") Documentation of Dumping on Bank of Deering Pond

-Suggested Sampling Location: West Side of Building

Connecticut Department of Transportation ("DOT") Site

-In Vicinity of Zone 3 in RI -Allegations of Waste Dumping -Failure to Date to Investigate and Sample Adequately

Desmond/Connecticut DOT Landfill - Perry Avenue

-In vicinity of Zone 4 in RI -DEP Documentation of Unauthorized Disposal of

Methylene Chloride, Paint Wastes, Waste Oil and Other Wastes

-DEP Documentation of Discolored Soil and Dead Vegetation at Site

Electric Control Equipment - 2 Mueller Avenue

-Machine Shop (Transformer Repair) -In Vicinity of Zone 4 in RI -User of Chlorinated Solvents -Connecticut Department of Environmental Protection

("DEP") Investigation Revealed Spills and Onsite Disposal Likely

-Suggested Sampling Locations: Outdoor Storage Areas, Storm Drains, Drywell, Loading Docks

Electric Regulator - Pearl Street

-Manufacturer of Electrical Instruments -In Vicinity of Zone 4 in RI

-User of Chlorinated Solvents -DEP investigation Revealed Outdoor Spill of Waste Oil

and Solvents -Suggested Sampling Location: Outdoor Storage Area

6. Fairfield Container - 4 New Canaan Avenue

-User of Printing Inks

-DEP Documentation of Spent Ink and Solvent (TCE)

Discharge to Soil and Groundwater -Area Was a Former Dumping Ground

-Suggested Sampling Locations: Drywell; Nearby

Underground Waste Oil Tank Area and Oil-Stained Area Along East Side of Railroad Tracks Alongside Fairfield Container (Possible Discharges From

Nearby Deering Construction or Troy's Saw Filing Facilities)

7. Firing Circuits Division of Marathon Electric Manufacturing Mueller Avenue

-Assembly of Motor Controls -In Vicinity of Zone 4 in RI -Known Use of Vapor Degreaser

8. Ford Tractor fWesco) - 27 Broad Street

-Outdoor Steam Cleaning Pit and Underground Waste Oil Tank

-DEP Documentation of Discharge to Soil -Suggested Sampling Locations: Catch Basin (Dry Well)

9. H.D. Catty - 235 Main Avenue

-Ink Printing on Paper/Foil Laminates -In Vicinity of Zone 2 in RI -User of Chlorinated Solvents -DEP Documentation of Leaking Underground Solvent

Tanks; Empty Discarded Drums; Onsite Spills -Allegations of Long-Time Onsite Disposal

-Suggested Sampling Locations: Drum Storage Area

South of Building; Underground Tank Area

10. Ivan Sorval - 100 Pearl Street

-Manufacturer of Centrifuges -In Vicinity of Zone 4 in RI -Outside Drum Storage of Chemicals (Likely TCE)

11. Maaco Auto Body and Repair^ - 195 Main Avenue

-DEP Order For Hydrogeologic Investigation and Remedial Action Program

-DEP Documentation of Leaking Paint, Lacquer Thinner,

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and Enamel Reducer Wastes Leaking From Drums;

Discharges to Ground; Benzene Contamination

-Suggested Sampling Locations: Outdoor Drum Storage Area Northwest of Facility and Indoor Drum Storage Area

12. Modern Printing and^Lithograph/Professional Graphics - 10 Pearl Street

-Commercial Printing Operation With Ink and Solvent Wastes

-In Vicinity of Zone 4 in RI -DEP Documentation of Ink Wastewater Discharge to

Ground -Suggested Sampling Locations: Dry Well, Septic Tank

and Leach Field

13. Northeast Utilities

-CL&P Landfill in Zone 3 in RI -NUS Conclusion That Further investigation Necessary

to Determine Whether Landfill Has Contributed to Kellogg-Deering Contamination

14. Norwalk pye and Finishing - Mueller Avenue

-Dyeing and Finishing Operation -In Vicinity of Zone 4 in RI -DEP and EPA Documentation of Large Uncontrolled Fuel

Oil Discharge to Groundwater and Norwalk River -FDWD Documentation of Problems with Dye Overflows and

Discharges to Soil -User of Large Variety of Organic and Other Chemicals -Use of Floor Drains for Disposal

15. Norwalk Powdered Metals - Mueller Park

-Fabrication of Metal Parts via Powdered Metals -In Vicinity of Zone 4 in RI -User of Solvents and Oils -DEP Documentation of Disposal On Ground and Of Oil

Stains -FDWD Documentation of Leaching From Soil and Runoff

Down Bank of Deering Pond -Suggested Sampling Locations: Outdoor Drum Storage

Area, Former Disposal Area on Bank of Norwalk River

16. Norwalk Tire/Armstrong Rubber (presently Caldor Office

Building) - 20 Glover Avenue

-Upgradient of Zone 4 -Large Manufacturer of Tires and Heavy Rubber Products -Likely User of Solvents

-3

17. Parkin Elmer - 353 Main Avenue (two separate facilities)

-Manufacture and Painting of Instruments and Transformers

-In Vicinity of Zone 4 in RI -User of Chlorinated Solvents -Generator of Paint and Solvent Wastes -Suggested Sampling Locations: Temporary Drum Storage

Areas, Rinse Tanks

18. Perkin Elmer - 761 Main Avenue

-Manufacturer of Laboratory Equipment -Upgradient of Zone 4 in RI -User of Chlorinated Solvents and Variety of Other

Chemicals -Underground Storage Tank (Documentation of Leak) -Previous Use of Dry Well System (Two Galleries) For

Liquid Wastes -Suggested Sampling Locations: Underground Storage

Tank Area, Dry Well Area

19. Pitnev Bowes Business Systems - 380 Main Avenue

-In Vicinity of Zone 4 -Site of Former Semiconductor Manufacturing Operations

20. Printed Circuits International - 114 Main Avenue

-Manufacturer of Printed Circuit Boards -DEP Order Regarding Discharge to Groundwater -DEP Documentation of TCE Use and of Discharges of

Etching Solutions and Other Chemicals to Floor Drains

21. Roberk - 1 Emerald Street and Mueller Park

-Manufacturer of Chrome Accessories -In Vicinity of Zone 4 in RI -Known User of TCE

22. Shell Station - Main Avenue and Broad Street

-In Vicinity of Zone 2 in RI -DEP Order Regarding Discharge to Groundwater -DEP Documentation of Hydrocarbon Spill to Soil and

Groundwater -Evidence of Significant Groundwater Levels of Volatile

Organic Aromatics (Including Benzene and Toluene) as Result of Spill

23. TTAXla.eJ; - 327 Main Avenue

-Urgradient of Zone 4 in RI -Known User of TCE

24. Yankee Metal Products - 25 Grand Avenue

-Known Major User of TCE -Known Discharge of Fuel Oil

0331E

-5

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UNITED STATES DEPARTMENT OF THE INTERIOR

GEOLOGICAL SURVEY

STATE OF CONNECTICUT HIGHWAY DEPARTMENT

NORWALK NORTH QUADRANGLE CONNECTICUT-NEW YORK

7.5 MINUTE SERIES (TOPOGRAPHIC)

Mapped, edited, and published by the Geological Survey Control by USGS. NOS/NOAA. end Connecticut Geodetic Survey

Topography by photogremmetrle methods from aerial photographs taken 1949. Field checked 1951. Revised 1960

Selected hydrographic data compiled from NOS chart 221 (1959) This information is not intended for navigational purposes

Polyconie projection. 10,000-foot grid ticks based on Connecticut coordinate system 1000-meter Universal Transverse Mercator grid ticks, zone 18, shown in blue 1927 North American Datum To place on the predicted North American Datum 1983 move the protection lines 6 meters sooth and 36 meters west a* shown by dashed comer ticks

R»d tint indicates >re«t in «hich only landmark buildings are shown

SCALE 1 24000 o

1000 0 1000 MOO 3000 AQOO VX» MOO 1000 T

1 5 ° 1 KILOMETER

CONTOUR INTERVAL 10 FEET NATIONAL GEODETIC VERTICAL DATUM OF 1929

DEPTH CURVES AND SOUNDINGS IN FEET-DATUM IS MEAN LOW WATER 'HE RELATIONSHIP IETWEEN THC TWO DATUM* IS VARIABLE

SHORELINE SHOWN REPRESENTS THE APPROXIMATE LINE OF WEAN HIGH WATER THE MEAN RANGE OF TIDE IS APPROXIMATELY 7 2 FEET

THIS MAP COMPLIES WITH NATIONAL MAP ACCURACY STANDARDS

FOR SALE BY U. S. GEOLOGICAL SURVEY. RESTON, VIRGINIA 22092 A FOLDER DESCRIBING TOPOGRAPHIC MAPS AND SYMBOLS is AVAILABLE ON REQUEST

T f̂lr

FILE COPY FILE NO—

HYDROGEOLOGIC INVESTIGATION BARDANISE BUILDINGS

272 MAIN AVENUE NORWALK, CONNECTICUT

PREPARED FOR THE BARDANISE COMPANY

JUNE 1986

FUSS & O'NEILL, INC. 210 MAIN STREET

MANCHESTER, CONNECTICUT

TABLE OF CONTENTS

PAGE

I. INTRODUCTION 1

II. GEOGRAPHIC SETTING 2

III. AREA GEOLOGY 3

A. SURFICIAL 3 B. BEDROCK 3

IV. SUBSURFACE INVESTIGATION 4

V. OVERBURDEN CONTAMINANT ANALYSIS 6

VI. HYDROGEOLOGY 7

A. SITE SPECIFIC GEOLOGY 7 B. GROUNDWATER HYDROLOGY 9

VII. GROUNDWATER QUALITY ANALYSIS 11

A. SUMMARY OF SAMPLING 11 B. NATURE AND EXTENT OF CONTAMINATION 12

VIII. SUMMARY , 13

IX. CONCLUSIONS 15

REFERENCES

TABLES

1 - Summary of Monitor Well Completion Details Following Page 5

2 - Summary of Soil Sample Contaminant Analysis Following Page 6

3 - Summary of Water Quality Data Following Page 11

FIGURES

1 - Site Location Map Following Page 2

ATTACHMENTS

I - Consent Agreement and Approval

II - Geologic Logs and Monitor Well Completion Reports

III - Laboratory Reports

IV - Soil and Water Quality Results - Building 3 (hrp Associates)

V - Water Quality Summary From NUS Remedial Investigation Report

PLATES

1 - Well Location and Bedrock Contour Map At End of Report

2 - Water Elevation and TCE Concentrations At End of Report

I. INTRODUCTION

In July 1985, Fuss & O'Neill, Inc. was retained by the

Bardanise Company to conduct a hydrogeologic investigation of

property located at 272 Main Avenue in Norwalk, Connecticut.

The investigation and this report were undertaken voluntarily

pursuant to and in compliance with Connecticut Department of

Environmental Protection (D.E.P.) Consent Agreement No. 4109,

included as Attachment I. Under this agreement, the purpose

of the study was to investigate "the extent and degree of

groundwater, surface water and soil contamination" which may

have resulted from "chemical storage, handling and disposal

activities at 272 Main Avenue".

The Bardanise property on Main Avenue is occupied by three

buildings, (Buildings 1, 2 and 3) as shown on Figure 1.

Building 3 is located at 272 Main Avenue. An earlier

hydrogeologic study conducted on the behalf of Electric

Indicator Co., Inc. ("Elinco", a former division of EDO

Corporation), which has leased Building 3 from January of 1973

to the present, demonstrated the presence of high levels

of volatile organic contaminants, principally trichloroethylene,

tetrachloroethylene and 1,1,1-trichloroethane in the groundwater

immediately west of Building 3 (Reference 1). In addition, the

study documented two areas of soil contaminated with high levels

of volatile organic compounds. These areas are located

-1

immediately east of Building 3 and according to investigations

undertaken by the D.E.P. and Elinco's consultant, (hrp

Associates), are related to the storage of both virgin and waste

solvents at Building 3.

This investigation was intended to examine the entire Bardanise

Company property which includes Buildings 1, 2 and 3 (hereafter

referred to as "the site") with respect to volatile organic

contamination.

II. GEOGRAPHIC SETTING

The Bardanise Buildings are located on the east side of U.S.

Route 7, approximately 3,200 feet south of the Merritt Parkway

in Norwalk, Connecticut as shown on Figure 1. The area is

densely developed with both commercial establishments and

light industrial facilities, whose operational histories go

back as much as 40 years or more.

The United States Environmental Protection Agency (E.P.A.),

through its consultants, NUS Corporation, has undertaken a

broad investigation relating to groundwater contamination of

the Kellogg-Deering Wellfield, located approximately 2,000

feet to the southeast of the Bardanise Buildings. These

studies, which have revealed widespread contamination of the

aquifer in a large area east of the wellfield, have included

investigations of several possible contaminant sources in the

vicinity.

-2

BARDANISE BUILDINGS

SITE LOCATION MAP

BARDANISE BUILDINGS NORWALK, CONNECTICUT

FIGURE I FUSS t n'NFii

III. AREA GEOLOGY

A. Surficial

The area in the immediate vicinity of the Bardanise

Buildings consists predominantly of two types of surficial

geologic deposits. (Reference 2). East and south of the

site at a natural elevation of 90 feet and above, the

surficial deposits consist of glacial till with scattered

bedrock outcrops. Till consists of non-stratified,

heterogeneous material deposited directly by glacial ice.

To the north and west of the property, the surficial

geology consists of fluvial sand and gravel characterized

as ice contact deposits, meaning that they were deposited

on and around stagnant glacial ice. Textural composition

can range from boulders to very fine sand and silt with

corresponding variations in hydraulic conductivity

depending on the degree of sorting by glacial meltwaters.

B. Bedrock

The bedrock beneath the site consists of mixed felsic

gneiss (Reference 3). It is described as medium to coarse

grained and poorly to well foliated. An outcrop mapped to

the east of the site indicates a strike orientation from

north to south with an easterly dip of 20°. An outcrop

observed immediately to the rear of Building 3 showed a

strike orientation generally trending northwest to

southeast.

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IV. SUBSURFACE INVESTIGATIONS

In order to investigate the nature and extent of contamination

which might exist in the soil and groundwater in the vicinity

of the Bardanise Buildings, all available hydrogeologic and

water quality data was examined. In addition, to obtain data

in areas of the property not previously examined as part of

the E.P.A. study of the Kellogg-Deering Wellfield or by

Elinco's consultants, a subsurface investigation program was

conducted.

The objectives of the subsurface investigation were as

follows:

1. Determine the nature of the unconsolidated deposits

at the site.

2. Obtain samples of the unconsolidated deposits for

the purpose of determining whether volatile organic

contamination is present in areas not associated

with the previously documented contamination at the

rear of Building 3.

3. Investigate the bedrock beneath the site in order

to examine its geologic composition and structure.

-4

4. Install monitor wells for the purpose of observing

groundwater levels to determine direction of flow

and obtaining samples for water quality analysis.

As shown on Plate 1, a total of seven monitor wells were

completed adjacent to Bardanise Buildings 1 and 2 in September

of 1985, designated MW-100 through MW-106. As shown on the

plate, five of these wells were completed as bedrock wells and

two in the stratified drift deposits, depending on where t 3

water table was encountered.

Wells K-10 and K-ll, also shown on the plate, were installed

by NUS Corp. for the EPA remedial investigation of the

Kellogg-Deering Wellfield. Well K-10 is not actually located

on the Bardanise property but directly adjacent to it and was

therefore considered an important data point* Monitor Wells

MW-1 through MW-3 were installed in conjunction with the

previously referenced hydrogeologic study conducted for

Elinco. All three of these wells are completed in the

bedrock. Geologic logs and monitor well completion reports

for all wells are given as Attachment II. Table 1 is a

summary of monitor well completion details.

Monitor wells in the unconsolidated deposits installed for

this study were constructed using hollow stem augers and/or

driven 4 inch casing. An NX size diamond core barrel was

utilized for bedrock installations. Split spoon samples were

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TABLE 1 SUMMARY OF MONITOR WELL COMPLETION DETAILS

HYDROGEOLOGIC INVESTIGATION BARDANISE BUILDINGS NORWALK, CONNECTICUT

ELEVATION OF SAMPLING INTERVAL BEDROCK SURFACE WELL TOP OF CURB

NO. BOX DEPTH ELEVATION DEPTH ELEVATION AQU] (FT-MSL) (FT-BGL) (FT-MSL) (FT-BGL) (FT-MSL)

MW-la 87.87 17-26.5b 70. 9-61.4b 5.5 82 BD

MW-2a 79.67 12.5-22.5 67.2-57.2 11 69 BD

iT7-3a 82.51 18.0-28.0 64.5-54.5 18 65 BD

MW-100 81.65 42.7-47.7 38.9-33.9 38 43 BD

MW-101 80.76 30.4-35.4 50.4-45.4 36 45 OB

MW-102 99.36 10.5-15.5 88.9-83.9 6 95 BD

MW-103 83.90 10.8-15.8 73.1-68.1 10 73 BD

MW-104 81.48 9.2-14.2 72.3-67.3 7 75 BD

MW-105 82.51 19.5-24.5 63.0-58.0 17 66 BD

MW-106 82.38 11.5-16.5 70.9-65.9 17 66 OB

K-10C 82.16 15. 0-59. 4b 67. 2-22. 8b 9 73 BD

K-llc 78.45 28.5-38.5 50.0-40.0 38.5 40 OB

a - WELL INSTALLED UNDER THE SUPERVISION OF hrp ASSOCIATES, INC.

b - OPEN HOLE - NO SCREEN

c - WELL INSTALLED UNDER THE SUPERVISION OF NUS CORPORATION

MSL - MEAN SEA LEVEL

BGL - BELOW GRADE LEVEL

OB - OVERBURDEN (STRATIFIED DRIFT)

BD - BEDROCK

FUSS & O'NEILL, INC. MAV 1OQC

obtained at five foot intervals in the overburden and retained

for contaminant analysis.

All drilling and well construction was conducted in accordance

with D.E.P. approved procedures and supervised by an on site

hydrogeolog ist.

V. OVERBURDEN CONTAMINANT ANALYSIS

A total of eleven soil samples were submitted to York

Laboratories of Monroe, Connecticut for volatile organic

priority pollutant analysis. Samples selected for analysis

were those obtained at and near the depth of the water table.

This was accomplished on the premise that if contamination is

present in the upper sediments, it would also appear at lower

depths. Table 2 presents a summary of the results for those

constituents detected. A copy of the complete lab results are

given in Attachment III.

As shown on the Table, three constituents, chloroform,

methylene chloride and trichloroethylene (TCE) were detected

at various locations and depth intervals in the unconsolidated

sediments at the site. Because of the previous soils analysis

conducted in conjunction with the Elinco study, TCE was

considered the contaminant of primary concern, and was

detected in three samples, MW-101 Samples 5 and 6 at

concentrations of 25 and 95 ppb (parts per billion)

respectively and MW-102 Sample 1 at 20 ppb. We believe that

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TABLE 2 SUMMARY OF SOIL SAMPLE CONTAMINANT ANALYSIS

DATA OF SEPTEMBER 1985 HYDROGEOLOGIC INVESTIGATION

BARDANISE BUILDINGS NORWALK, CT

MONITOR WELL NUMBER

SAMPLEIDENTIFIER

DEPTH INTERVAL (FT-BGL1)

CHLOROFORM (ppb)

METHYLENE CHLORIDE (ppb)

TRICHLOROE (ppb)

MW-100 S-4 25.0-27.0 17 15 ND

S-5 30.0-32.0 17 17 ND

S-6 35.0-37.0 ND ND ND

MW-101 S-4 25.0-27.0 16 13 ND

S-5 31. 0 "T.O ND 15 25

S-6 35.0-35.9 ND ND 95

MW-102

MW-103

S-l

S-l

5.0-6.0

5.0-7.0

ND

ND

ND

ND

203

ND

MW-104 S-l 5.0-5.6 ND ND ND

MW-105 S-2 10.0-10.8 ND ND ND

S-3 15.0-16.5 11 ND ND

NOTE: LOWER LIMIT OF DETECTION =

the sample from MW-102 was in some way contaminated during

sampling or handling and that there is in fact no

contamination present in this area. Subsequent water quality

sampling at this location has not detected any volatile

organic constituents.

To summarize the overburden contaminant analyses, data

obtained from sampling conducted on behalf of Elinco (see

Attachment IV) indicated concentrations of (TCE) up to 160,000

ppb present in soil samples obtained from the drum storage

area located at the rear of Building 3. Data also revealed

soil concentrations of up to 10,500 ppb of 1,1,1

trichloroethane and up to 13,000 ppb of tetrachloroethane in

this same location.

Data obtained from sampling conducted as part of the Fuss &

O'Neill investigation revealed extremely low levels of

chloroform and methylene chloride in sediments to the

northwest and west of Bardanise Building 1. TCE was detected

in the lower portion of the unconsolidated deposits at the

site of MW-101, located at the northwest corner of Building 1.

VI. HYDROGEOLOGY

A. Site Specific Geology

Drilling and sampling conducted at the site has confirmed

that the unconsolidated deposits beneath the Bardanise

Buildings are classified as ice contact deposits which

-7

consist of assorted sized sands, gravels and boulders with

varying amounts of silt. These deposits originated during

the last glacial period, in an environment where glacial

meltwaters were in close proximity to the existing ice

mass. This produces formations of extreme complexity as

climatic variations changed the depositional environment

under which the formation was created. The result is a

geologic deposit which can consist of well sorted sands

and gravels to silty till-like materials to boulders. The

hydraulic conductivity of these deposits is highly

variable, with groundwater preferentially migrating along

zones of greatest transmissivity.

In addition to monitor well locations, Plate 1 presents an

idealized representation of the bedrock surface at the

site. As the plate illustrates, the bedrock slopes

downward to the north and west. Correspondingly, the

thickness of the stratified drift deposits increases

toward the northwestern portion of the site, reaching a

maximum of 38 feet at the location of MW-101.

Coring into the bedrock indicates that the shallow bedrock

system beneath the Bardanise Buildings is moderately

weathered within its first 6 to 12 inches. In addition,

-8

it is moderately to highly fractured to depths of at least

10 feet. This implies that a relatively uninterrupted

hydraulic connection exists between the bedrock and the

overlying stratified drift deposits.

B. Groundwater Hydrology

Following installation, development and top of casing

elevation survey of the seven new monitor wells, two

rounds of water level measurements were made in

conjunction with the water quality sampling to be

described in a later section of this report. Plate 2

shows the elevation of the water table on December 10,

1985. Water levels obtained in November were somewhat

lower, but the configuration of the water table was

unchanged.

As the plate illustrates, groundwater appears to flow

generally to the west-northwest. Along the southern

property boundary in the vicinity of Building 3, the

groundwater flow is more to the northwest. As can be seen

by comparing Plate 1 to Plate 2, groundwater flow tends to

mirror the configuration of the bedrock surface. The

groundwater gradient is approximately 0.08 ft/ft, becoming

somewhat steeper to the east, as the bedrock surface

steepens.

-9

It is important to note that the groundwater system is

complicated by the fact that flow occurs entirely in the

bedrock over approximately 60 percent of the site. Flow

in fractured media does not conform to the same principles

derived to describe flow in porous media. Therefore, the

groundwater elevation contours shown on Plate 2 should be

viewed more as an idealized representation of flow

potentials in the upper water table as opposed to the

actual elevation and direction of groundwater flow.

Bedrock groundwater flow at this site, as with most areas

in Connecticut, takes place soley within fractures, the

rock itself being nearly impermeable. The fractures

usually occur within the upper portion of the rock and,

particularly in the case of metamorphic rock, tend to be

oriented in the direction of bedding. As shown by field

observations and testing conducted by NUS, most fractures

in the E.P.A. study area, which includes the Bardanise

Buildings, are generally oriented northwest to southeast.

Because of this, the slope of the bedrock surface and

the water table configuration previously described, we

anticipate that groundwater flow in the bedrock is

preferentially to the northwest.

Due to the high degree of hydraulic connection between the

stratified drift and shallow bedrock at this site it was

considered inappropriate to treat the two units as

-10

separate flow systems with respect to contaminant

migration. Therefore, an examination of groundwater flow

in the stratified drift deposits vs. the bedrock system

was not conducted.

VII. GROUNDWATER QUALITY ANALYSIS

A. Summary of Sampling

Since March of 1985, a total of 30 groundwater samples

from the various monitor wells on and near the Bardanise

property have been analyzed for the presence of volatile

organic contamination. Table 3 is a summary of all water

quality results from sampling conducted during this

investigation. Data from the previous investigation

conducted for Elinco is presented in Attachment IV. Water

quality sampling results from the NUS report are included

as Attachment V.

As indicated on the table, the sampling of March and April

1985 at MW-1, MW-2, MW-3, K-10 and K-ll was conducted by

NUS and samples split with Fuss & O'Neill, Inc. Analysis

of the Fuss & O'Neill portion of the samples was performed

by ETC and Griswold & Fuss Environmental Laboratories.

Following the installation of monitor wells 100 thru 106,

samples were obtained by Fuss & O'Neill, Inc. in November

and December of 1985 at monitor wells MW-1 thru MW-3 and

MW-100 thru MW-106. Analysis was performed by York

-11

TABLE 3 SLMMARY OF WATER DUALITY DATA HYDROGEOLOGIC INVESTIGATION

BARDANISE BUILDINGS NOPWALK, CT

c 0) 0) c rH

.I? 4J •P 0) 0)0) O c o M 0)

0 o .c O -p o •H 0)

•H )H Q EH o 1 1

CN o •H

I -P E-t

0)

(1c)

0

o rH A O

4J 0) E-"

ND ND ND ND

1,447 175 310 203

3,809 7,821 2,000 780

850 2,456

MONITOR WELL

MW-1

MW-2

MW-3

MW-100

DATE

3/14/85* 4/22/85^ 11/5/85 .̂ 12/10/85

3/14/85J 4/22/85^ 11/5/85 .̂ 12/10/85:

3/14/85^ 4/22/85^ 11/5/85 .̂ 12/10/85

3/14/85 4/22/85 11/5/85% 12/10/85J

NA NA ND ND

NA NA 97 67

NA NA 310 366

ND ND ND ND

121 49 200 78

123 29 180 222

ND ND ND ND

18,133 26,105 14,000 6,920

34,732 104,988 73,000 77,950

1,400 250 30,000 3,449 3 41,000

TABLE 3 (CONT.) SUMMARY OF WATER QUALITY DATA HYDROGEOLOGIC INVESTIGATION

BARDANISE BUILDINGS

MONITOR WELL DATE

MW-101 3/14/85 4/22/85, 11/5/852. 12/10/85:

MW-102 3/14/85 4/22/85, 11/5/85% 12/10/85

MW-103 3/14/85 4/22/85, 11/5/85. 12/10/85:

MW-104 3/14/85 4/22/85, 11/5/852. 12/10/85'

c 0)

•P 0) o

o •H Q I

I -P

1,100 1,020

ND ND

ND

ND 17

NORWALK, CT

0) C (0

•P 0) o

o •H

EH I

rH

66 45

ND ND

53

41 102

0)c 0) rH

>1 X!

JJ 0) rl

O

O •H

16,000 37,660

ND ND

620 270

2,200 3,342

0)

0)

•Po> o

M O

o (0

0)

EH

340 667

ND ND

84 29

90 431

K-10

MONITOR WELL

MW-105

MW-106

DATE

3/14/85 4/22/85.. 11/5/852

12/10/853

3/14/85 4/22/85. 11/5/852. 12/10/85J

3/14/85. 4/22/851

11/5/85 12/10/85

TABLE 3 (CONT.) SUMMARY OF WATER QUALITY DATA

HYDROGEOLOGIC INVESTIGATION BARDANISE BUILDINGS

NORWALK, CT

0) V

0) G 0)

0) 0) 0)O c

O 0) H 0 (1) rH O u )H U •H a) O

•H SH rH Q O JS I rH o

CM x: o •H

I 4J

ND 5 9 3 ND 2 ND ND

ND 2 ND ND ND 2 ND ND

ND 562 52

TABLE 3 (CONT.) SUMMARY OF WATER QUALITY DATA HYDROGEOLOGIC INVESTIGATION

BARDANISE BUILDINGS NORWALK, CT

c (1)C0) m 0)

C J2 0) -P 0) 0) o O s-i 0) M o O (U

o 4J a O •H (U o

•H Q

I EH I o

MONITOR WELL DATE

K-ll 3/14/854 3/14/85̂ 4/22/851

11/5/85 12/10/85

NOT SAMPLED NA NOT ANALYZED ND NONE DETECTED

CN (0 O •H 4J ̂

0)

4J EH

NA ND 12,300 118 NA 35,430 83 NA 13,903 59

NOTE: ALL RESULTS IN MICROGRAMS PER LITER (ppb) DETECTION LIMIT 1 ppb

SAMPLED BY NUS SAMPLED BY F & 0

3 SAMPLED BY F & 0

4 SAMPLED BY NUS

ANALYSIS BY GRISWOLD & FUSS - ANALYSIS BY YWC - ANALYSIS BY GRISWOLD & FUSS ANALYSIS BY ETC

Laboratories and Griswold & Fuss. Sampling was conducted

utilizing D.E.P. approved procedures.

B. Nature and Extent of Contamination

In addition to water table contours, Plate 2 shows TCE

concentrations based on the November and December 1985

sampling conducted by Fuss & O'Neill, Inc. Water samples

were obtained from Monitor Wells MW-1 through MW-3 and

MW-100 through MW-106. Wells K-10 and K-ll were not

available for sampling at these times so that data from

previous samples collected by NUS and split with Fuss &

O'Neill is presented.

As shown on the plate, TCE has been detected both in the

shallow bedrock and in the unconsolidated materials.

Generally, the principal levels of TCE contamination haye

been detected on site in the groundwater to the west of

Buildings 1 and 3. The highest contaminant concentrations

were detected in samples obtained from MW-3, located

immediately to the west of Building 3.

Monitor Wells MW-1 and MW-102, completed to the east and

hydraulically upgradient of the Bardanise Buildings,

showed no evidence of volatile organic contamination.

MW-105 and MW-106, located to the north of Building 1 and

completed in

-12

the bedrock and stratified drift aquifers respectively

have indicated intermittent, trace levels of volatile

organics.

VIII. SUMMARY

The hydrogeologic investigations conducted at 272 Main Avenue

in Norwalk by the Bardanise Company and Elinco, and data

obtained in conjunction with the E.P.A. Kellogg-Deering study

have demonstrated the following:

1. The unconsolidated materials at the site consist of

assorted sized sand, gravel, boulders and silt designated

as ice contact deposits. Hydraulic conductivity of this

geologic unit is highly variable, depending on the degree

of sorting by glacial meltwaters. The deposits range in

thickness from 0 to 38 feet across the site.

2. Bedrock at the site consists of weathered and fractured

gneiss. Fracture orientation is generally northwest to

southeast. Test drilling indicates that the bedrock

surface slopes steeply to the west across the northern

portion of the site and to the northwest across the

southern portion, beneath Building 3.

3. Test drilling has shown that a high degree of

interconnection most probably exists between the

stratified drift deposits and the underlying bedrock.

-13

This presents a situation favorable to contaminant

migration from the overburden into the bedrock. In

addition, groundwater levels have shown evidence of a

downward flow potential from the overburden to the bedrock

system.

\

4. Water levels indicate that"groundwater flow potentials are

to the west-northwest at a gradient of approximately 0.08

pt/ft. ^uch of the groundwater flow occurs exclusively in

the shallow bedrock fracture system, particularly in the

eastern and southern portions of the property.

5. Sampling of the stratified deposits conducted on behalf of

Elinco demonstrated TCE levels of up to 160,000 ppb in

soil samples obtained from the rear of Building 3.

Analysis of soil samples from six locations in the

vicinity of Buildings 1 and 2 have shown relatively low

levels of TCE, chloroform and methylene chloride at and

near the water table.

6. Water quality samples indicate that volatile organic

compounds, principally trichloroethylene,

tetrachlorethylene and 1,1,1 trichloroethane are present

in the groundwater beneath the site, principally to the

west of Buildings 1 and 3, and to a lesser extent between

Buildings 1 and 3. These compounds have been detected

both in the unconsolidated sediments and the fractured

-14

bedrock. The highest concentrations of volatile organics

are present in the bedrock aquifer in the vicinity of

Building 3.

IX. CONCLUSIONS

Because of the configuration of the contaminant plume

emanating from the study area, and the physical contraints and

hydrogeologic properties of this site, it is difficult to

assi in a point source for the contamination detected in the

groundwater at the Bardanise Buildings.

The earlier work conducted on behalf of Elinco indicates that

the former Elinco drum storage area and virgin TCE storage

tank located at the rear of Building 3 (see Plates 1 and 2)

were definite sources of contamination (Reference 1, p. 16).

No additional areas of grossly contaminated soil were detected

on site and it is not possible to identify specifically any

other source areas based on the information obtained and

reviewed. Given the above, it is highly probable that the

rear of Building 3 can be considered the primary source of

groundwater contamination at the Bardanise site.

Contamination is likely to have migrated to the northwest from

the rear of Building 3 following the northwest groundwater

flow gradient, northwest to southeast bedrock fracture

orientation and northwest slope of the bedrock surface

previously described.

-15

Subsequent to the earlier study conducted at Building 3,

Elinco has excavated and aerated 4,200 cubic feet of

contaminated soil associated with the former drum storage

area. At the request of the D.E.P., two soil venting tubes

were also installed. These actions served to minimize

leaching of additional contaminants which were contained

within the sediments.

-16

REFERENCES

1. hrp Associates, Inc., 1984, Hydrooeoloqic and Engineering

Report on the Extent of Contamination and Remedial Options

Available, prepared for the Elinco Division of EDO

Corporation.

2. London, E. H., 1984, Surficial Geology of the Norwalk North

Quadrangle, Map MF-1520, United States Geological Survey in

cooperation with the State of Connecticut Geological and

Natural History Survey.

3. Kroll, Richard L., 1967-1969, Bedrock Geology of the Norwalk

North Quadrangle/ Connecticut, State of Connecticut Geological

and Natural History Survey, Department of Environmental

Protection Quadrangle Report 34.

4. NUS Corporation, 1986, Remedial Investigation Report, Volume

1, Technical Report, Kellogg-Deering Site, Norwalk,

Connecticut. Prepared for the U.S. EPA, Contract number

68-01-6699.

ATTACHMENT I

D.E.P. CONSENT AGREEMENT AND APPROVAL

?

STATE OF C O N N E C T I C U T CONNECT/ DEPARTMENT OF ENVIRONMENTAL PROTECTION

Y E A 1 STATE OF CONNECTICUT I 9 8 5 & 1

VS. THE BARDANISE COMPANY

IN THE MATTER OF AN AGREEMENT WITH THE BARDANISE COMPANY TO ABATE POLLUTION

CONSENT AGREEMENT

WHEREAS, on October 19, 1983, the Commissioner of Environmental Protection acting pursuant to Section 22a-432 of the Connecticut General Statutes issued an order to abate pollution (Order No. 3597) to "Charles Zell, et al" with respect to property located at 272 Main Avenue, Norwalk, Connecticut; and

WHEREAS, The Bardanise Conpany, a Connecticut General Partnership (hereinafter referred to as the "Conpany"), is the owner of the aforementioned property; and

WHEREAS, The Bardanise Conpany denies responsibility for the maintenance of conditions which can reasonably be expected to create a source of pollution of the waters of the State, but nevertheless desires to cooperate with the Commissioner of Environmental Protection in investigating the extent and degree of groundwater, surface water and soil contamination resulting from chemical storage handling and disposal activities at 272 Main Avenue, Norwalk, Connecticut.

NOW, THEREFORE, it is hereby agreed as follows:

1. The Bardanise Company will undertake to investigate the extent and degree of groundwater, surface water and soil contamination resulting from chemical storage handling and disposal activities at 272 Main Avenue, Norwalk, Connecticut in accordance with the following schedule:

A. Within 30 days of the effective date of this Consent Agreement the Company shall verify to the Commissioner of Environmental Protection that a qualified consultant has. been retained to perform the necessary studies and investigation as aforesaid.

B. Within 45 days of the effective date of this Consent Agreement, the Conpany shall submit for the review and approval of the Commissioner of Environmental Protection a scope of study report to accomplish the aforementioned investigation, which report shall include the proposed location and depths of groundwater, monitoring wells, soil and surface water sampling locations and proposed sampling program.

C. Within 75 days of the effective date of this Consent Agreement, the Conpany shall verify to the Commissioner of Environmental Protection that monitoring wells, as per step B above, have been installed as approved by the Commissioner of Environmental Protection and that the proposed sampling program has begun.

Phone:

165 Capiiol Avenue • Hartford. Connecticut 06106

-2

D. Within 180 days of the effective date of this Consent Agreement, the Company shall submit for the review and approval of the Conmissioner of Environmental Protection a comprehensive hydrogeologic and engineering report which defines the extent and degree of contamination as aforesaid.

2. The Commissioner of Environmental Protection shall withdraw the aforementioned Order No. 3597 as well as the civil action instituted pursuant thereto by Writ, Summons and Complaint dated December 10, 1984 in the Superior Court for the Judicial District of Hartford/New Britain at Hartford.

3. The Coimdssioner may at any time take any and all legal, administrative or equitable action to* abate pollution, or take such other action as provided by the Connecticut General Statutes, as amended, or the Regulations of the Connecticut State Agencies on all matters not specifically covered in this agreement of if the Company fails to comply with the provisions of this Consent Agreement.

THE

A Par

Stanley

COMMISSIC DEPARTMENT OF ENVIRONMENTAL PROTECTION

We hereby consent to the entry of the foregoing Agreement as a final order of the Conroissioner of Environmental Protection without further notice.

THE COMPANY

-3

- Entered as an Agreement with the Comnissioner of Environmental Protection pursuant to Section 22a-432 of the Connecticut General Statutes, this 19 day of Aigu^ti985.

Stanley J/Paj6 COMMISSIONER

CONSENT ORDER NO.4109 DEPAJPC-103-092 TOWN OF NORWALK LAND RECORDS >5AIL CERTIFIED MAIL-RRR MAIL TO: MR. SOL YOUNG 79 OCEAN DRIVE EAST STAMFORD, CT 06902

C E L E B R A T E CONNECTICUT STATE OF C O N N E C T I C U T

DEPARTMENT OF ENVIRONMENTAL PROTECTION O c t o b e r 1 , 1 9 8 5

Y E A R S I 9 8 5 & I 9 3 6

A P P R O V A L

Mr. Sol Young 79 Ocean Drive Stamford, Connecticut 06902

The Bardanise Company Re: DEP/WPC-103-092

Norwalk, Connecticut

Dear Mr. Young:

The Scope of Work prepared for The Bardanise Company by Fuss & O'Neill has been reviewed by the Department of Environmental Protection.

This report conplies with Departanent of Environmental Protection/ Water Compliance Unit's ORDER No. WC 3597 to the Bardanise Company entered on August 19, 1985 fulfilling the requirements of Steps A and B of the Order.

This APPROVAL does not relieve the discharger of the obligation to obtain any other authorizations as may be required by other provisions of the Connecticut General Statutes, or regulations of Connecticut State agencies, or regulations of any municipality.

Richard Director Water Compliance Chit

RJB:PM:wen

cc: Consulting Engineer:

Fuss & O'Neill 210 Main Street Manchester, Connecticut 06040

Mr. Alan Kosloff Rove, Case, Kennel ly & Klebanoff Two Wintonbury Mall Post Office Box 588 Bloonfield, Connecticut 06002

Phone.

165 Car.:.1! Avenue • H a t - f o r d . Onnectvji 0610ft

ATTACHMENT II

GEOLOGIC LOGS AND MONITOR WELL COMPLETION REPORTS

Bit *. Ft-. East Coast Drilling, Inc. A P R1 e Proportions Used !40fcWU30"fol I on 2"0.0. Sampler SUMMARY

Cohesioniest Density Connive Consistency Earth BorKv; 3 . 5 D:0ry C= Cored W*Wosned trace CiolO% 0-10 Loose 0-4 Soft 30 •«• Mord Rocfc Coring 21.0^ UP : Und'SfurDCd P'Ston Miie iOio20% IO-3O Med. Dense 4-8 M/Sliff Somoies LTPs Test Pit A= Auger V:Vone Test »ome 2Ofo33°/c 3O-50 Dense 8-(5_ Stiff f .«.V '.'.'-»«' '

o*d 35 TO 50%

http:24.5'-26.5Ihttp:22.5'-24.5fhttp:0.5'-2.0f

MONITOR WET J. COMPLETION REPORT

Town: N;o&wA*-< Site: E i-

Monitoring Point Z.D. No.: jv\w— | Date of completion: ̂ / *-/ I

DEPAPC I.D. No:

toni toeing Point Location (relative to site features): - s , .rt-

Drilling Contractor: Eyv s T C o/V s r Supervising Engineer/Geologist: P. PA O /?. ». u u » ivj G. s:̂ /c .

Well Construction Method:

. T7«iPr«MATTCM (ELEVATIONS TO NEAREST 0.1 FEET)

Ground surface elevation (MSL) :

Top of casing elevation (MSL) t

Length of Screen:

Length of riser pipe: f"7.O4

Screen type:

Filter fabric: _ Yes _ No

Well inside diameter: 2. "

Well depth below ground surface: ;£ £

Refusal; _ Yes _ No

Screened interval:

Screen Slot size:

Screen packing: _ Yes _ No

If yes, Thickness:

Material:

grain size:

Impermeable Backfill; 6e~-*«-«»/>« "Ve

Well casing material and schedule: i-to^v'C- Estimated K screened interval:

Method of well development: f>'

Bedrock wells

Casing length:i

t~l -0

Water-bearing rock unit: t- fr ft c T ̂ •*• ̂ O (= Ofc '3 • c

Water bearing sections (depths and approximate yields): i o' — .

Length of rock core: / ^, . >- '

Diameter of core hole: 2 7/?"

Thickness and depth of impermeable backfill: 2./ ' i

% —t 0

Or ings seals: X Yes _ No

GEOLOGIC TMPQRMATIQN

Aquifer:

Inferred relationship to plune: _ Within _ Outside _ Edge

Watershed (plume discharge watercourse) :

Aquifer materials (attach boring log)t

Attach maps and plans required of G.l.j. and G.4.

MONITOR WELL INSTALLATION DETAIL

FOR WELL IN BEDROCK

.- (

VENTED U08KIH« STEEL CAP: X Yg« MQ

PROTECTIVE TOP OF CASINO CL.

CROUNO SURFACE CL

•OAC HOLE DIA

TOP OP BEDROCK CL

•OTTOU OF CASINO EL. NO

CORCHOLC DIAMETER

BOTTOM OF CORCHOLC.CL.-r

Cr»«* Pn-^ct ririllinn Ini* §»t* — fin tasi uoasi uriiuny, inc. 9 1 1^ P. 0. BOX 961 - WALLINGFORD. CONN. 06492 m * F,0 narr 4/9/84

TO HRP *«siT** ates ADOPfSS ^ew Britain, Connecticut HOI F MO MW-2 ponirrfuAUF Elincp iorATm»i Norwalk, Connecticut

.C^ner HfT rn Client I rmMW 83-ttb-lU LINE A STA n-rccrnTTn Taken at Site |«».«,MO 83-176A OFFSFT

GROUND WATER OBSERVATIONS CASING SAMPLER CORE BAR. SURFACE ELEV AI alter Heun. c_ s DATESTAPTFD 4/4/84 Type HSA r^ OATEcoMPi 4/4/84

Sue ID. 1 3/ ̂ - BORING FOREMANQuagliaroli I t, nftar Hm rs 1401 i* BIT INSPECTOR P. Misluk

Honwnflr roll SOLS ENGR.

LOCATION OF BORING '•

Casing Sample Type Blows per 6" Moisture SOIL lOENTinCATlON Strata Blows Depths of on Sampler Remarks include color, gradation, Type of SAMPLE Density 0. soil etc. Rock-color, type, condition, hard-From- To ximpte or O ness, Driling time, seams and etc. Pen foot O-6 6-12 12-18 Consist. Elev. No Re

0.5'-2.0' D 10 4 6 Moist .5' Macadam. 1 1.5' 1. Loose Light Brown fine Sand,

little Silt.

Moist 5.0' 5.0'-6.5' D 10 28 37 Very Multi-color fine-coarse 2 1.51 1.:

Dense Sand and fine-medium Gravel. _

Moist Gray Brown fine-coarse Sand, lO.O'-lO.S D 617 5 V/Dense some fine-coarse Gravel, 3 .5' .5

11.0' trace Silt. Cobbles. 11.0'-16,0 C 7 Grayish White Gneiss, ( 31 5.01 4.e

5 from 14.0' -14. 5' seams). 8 7 6

. 16.0'-21-0' C 5 Gray Gneiss with fractured C2 5.0' 5.C joints. 4

4 3

21.0' 5 Roller Bit to 23.0'

-- 23.01

Bottom of Boring 23.0'

Installed 2" PVC Monitor Well & 22.5'

12. 5' Riser Pipe 10. O1 Screen

1 Curb Box

GROUND SuRPACE TO 1. T_ f) * us«"D HSA "c IASING: THEN Roller Bit to 23. u* Sc impie Type Proportions Used 14015Wf.«30"fonon2"O.D. Sompler SUMMARY

a Density Cohesive Consistency Eorfh Bonng 13.0 0:0ry C' Cored Wswosned trace G'olO% 0-10 Loose 0-4 Soft 30-fMord Rock Coring TO^ UP: Undisturbed P'jion Mine, iO'o20% 10-30 Mi d. Dense 4-8 M/Stiff SomptesTP: Test Pit A: Auger V:VoneTest some 20to35% 30-50 Dense tt-lS «>M1 | _ .;,._

UT: Undisturbed Tn.nwOll ona 35ro50% 50* Ver y Dense I5-3O v-«M» ' rlOLh NO nw ^

3

WFTJ. fT>TPTJ7IrfffrJ REPORT

Q3JERAL INFORMATION

Town: fs/ortW/M-V< Site: E T U i ^ / C - O

Monitoring Point I.D. No.: (v\W -2. Date of completion: *4 /4 j

DEPATC I.D. No:

Monitoring Point Location (relative to site features): OOojA/ *

Length of riser pipe: l̂ .. r'

Screen type: WC, Screen Slot size: . O i O *'

Filter fabric: _ Yes V No Screen packing: K Yes No

If yes, Thickness: ( O . O

Well inside diameter: *' Material:

grain size: Jt. 12.

Impermeable Backfill: Q e *. fort , 1" •«.

Well casing material and schedule: Estimated K screened interval:

Method of well development: pvjv^ Time spent developing: ( \vî

Locking _ or threaded cap _ Impermeable backfni? c

Bedrock wells

Casing length: CL2.< 5~

vTater-tearing rock unit: pr//> c T v-'/£ £ D ^ ^ l ̂ ^>UL= ' *S

r /Water bearing sections (depths andapproximate yields) : / 3 • o - 2 Z , 5*

Length of rock core: /2- -O*

Ditaneter of core hole: 2~

d impThicknesThicknesss ananddeptdepthh ooff impermeable backfill: ^' /0 • 5" - / 2. . S* Jl '

0-rings seals: _ .Yes X No

HEOI/CTC INFORMATION

Aguifer:

Inferred relationship to plane: Within Outside Edge

Watershed (plane discharge watercourse):

Aquifer materials (attach boring log) t



FOR WELL IN BEDROCK

mw - z

VENTED AOSHiltW STEEL CAP: V YE* no

OCX. y, TOP Of CASINO EL., PROTECTIVE »TCEL- CAfttftt: _£.YES MO

MOUNDED BACKFILL i .YES ^LNO «ROUNO SURFACE EL.,

i , *\

20NCRETE COLLAR: i.YES "Q

v\>rtxi. \/\ r r t^ »y\ ejfr* y \ c.I

i-*—TYPE OF CAaiMOt PVC*,

I 1.0. 2il « « ̂ & "

•OREHOLE OIA., • JOINT h

IMPCRyEABLC lACKFILL- TO A/I Tb

TOP OF BEDROCK EL.

I 2\\V*\toB, A. W^V

BOTTOM OF CASINO El —i 0- RING SEALS: « _ YES Jt-NO -4- S

lik< (.MO ooTro^f-^'

.tr, " COREHOLE OUMETER ̂ ' ̂ BOTTOM OF COREHOLt XL. -t *

FtB.East Coast Drilling, Inc. SMFFT 1 ^ 1

P. O. BOX 961 - WALLINGFORD, CONN 06492 fcr*. New

Ftfl. OATF 4/9/84 HRP Associates ,ADDRESS Britain. Connecticut 7OJCCT NAME _ Elinco LOCATION

Norwalk. Connecticut HOLE NO. MW-3 Client UNE ft STA. " "*T SENT TO. PRO J. NO 83-86-10

Taken at Siee 83-176A OFFSET ./>LES SENT TO. OUR JOB NO.

GROUND WATER OBSERVATIONS CASING SAMPLER CORE BAR. SURFACE ELEV. A. 19.0' „,_ 0 M DATE STARTED 4/4/84 Type HSA S-S

OATECOMPL. 4/5/84 •jlj" i T/fl'1 Size ID. BORING FOREMAN Ouagliaroli II

A? ofter .Hours 1401b. Hammer Wt. BIT INSPECTOR P Mi c 1 nlf i tanvnv poll 30" SOLSENGA

LOCATION OF BORING:

Cosing Sample Type Blows per 6" Moisture SOIL IDENTIFICATION x Strata Blows Depths of on Sampler Remarks include color, gradation. Type of SAMPLE Density

Tper From » or Change soil etc. Rock-color, type, condition, hord-From- To samp* ness.Dnling time, seams and etc. No Pen loot 0-6 6-12 12-18 Consist. Ektv. Rec.

0.5'-2.0' D £ 5 6 Moist .5' Macadam. 1 1.5' .5' Medi urn Brown fine -medium Sand, Dens e littlu fine Gravel, little

Silt. Mo is t

5.0'-6.5' p 1? 58 51 Very Brown fine-coarse Sand, 2 1.5' 1.0' Dens e some fine-coarse Gravel,

.trace Silt.

Mois t Brown fine-medium Sand, lO.O'-ll.S1 D 12 31 27 Very little fine-medium Gravel. i 1.5' 1.2'

Densi&

Mois t it it L5.0'-16.5' D 12 42 9? Very 4 1.5' 1.5'

. Dens< k 18. 01

L8.0'-23.0' C 7 Gray Gneiss. Cl 5.0' 4.7' 5 (Reamed Casing to 20. O1) 7 7 it ii 23.0'-28.0' C C2 5.0' 4.7' 6 6 6 7 7

28.0' 5

Bottom of Boring 28.0'

Installed 2" PVC Rock Well @ 28.0'

20.8' Riser Pipe

1 Curb Box

GROUND SURFACE TO Ifi..O1 us^D HSA "c THEN Cored to 28.0' aompie Type Proportion* Used I40tt>wt.i30"fol ion2"0.0.Sompler SUMMARY

Cohesionless Density Cohesive Cinsistency garfh Soring J.O. 0D:0ry C: Cored WsWosned iroce OiolO% O-iO Loose 0-4 Soft 30 + Hord Rock Cormg LU-U' P: Undisturbed P'jton little ' iO»o20% IO-3O Med. Dense 4-8 M/Stiff SompiesP:T»M Pit A: Auger V^Vone Test so-ne 20to33°/c 3O-SO Dense e-is stiff n. I/M C t.

WFTJ.

Town: N0£W/)LK' Site: bi

Monitoring Point I.D. No.: (A UJ-3 Date of completion: /

DEPAPC I.D. No:

Monitoring Point Location (relative to site features)

Drilling Contractor: CAST £-£/*»• Supervising Engineer/Geologist: ttf»L

Well Construction Method:

WFTJ. rNPQRHATIQN (ELEVATIONS TO NEAREST 0.1

Ground surface elevation (MSL): Well depth below ground surface: Z2-O

Refusal: Yes No

Top of casing elevation (MSL): Screened interval: '—

Length of Screen: /

Length of riser pipe: 20•£

Screen type: FfC- Screen Slot size: 'O 10 */

Filter fabric: Yes )L No Screen packing: X Yes No

If yes, Thickness: IO-O

Well inside diameter: Material:

grain size: ft

Impermeable Backfill: (3r/ ToH > TC.

Well casing material and schedule: Estimated K screened interval:

Method of well development: Time spent developing: 1 A/u.

Locking or threaded cap Impermeable backfill:

Casing length:

Water-bearing rock unit: [̂

Water bearing sections (depths and approximate yields) : \ Q'~

Length of rock core: 'O •

Dioneter of core hole: Z

Thickness and depth of impermeable backfill: Z /t £-12 *** 2 / X:3

O-rings seals: X Yes _ No

GEOLOGIC rNPQRMATIQH

Aquifer:

Inferred relationship to plume: Within Outside Edge

Watershed (plume discharge watercourse):

Aquifer materials (attach boring log) t



FOR WELL IN BEDROCK

.VENTED LOCKING STEEL CAP: /x Yga no

TOP OF CASING EL. ~\ ( _y

i^^» 1

*̂ «* i//

P-UOUNOEO BACKFILL i YES ̂ C-NO GROUND SURFACE EL. ___ —I I"

, *±4

>- "^* '"t L Ji ^

^CONCRETE COLLAR: J6 vr« NO / X

*, i • 11 f i ^rrTYPE OF CA»lMOi fi -CA r

1

DE

PT

H

DRILLER

INSPECTOR

DATE START

DATE FINISH

NO.

1

2

Glenn Drilling Inc.R.F.D. #1, Lake Road Fltchvilra, CT 06334

(203, 887-3621

ARCHITECT ENGINEER Mi^Kool na=««

Bob Potterton TYPE

Sept. 9. 1985 SIZE ID

HAMMER WT.

Set>t. 11. 1985 HAMMER FAL

SAMPLE

BLOWS PER 6" DEPTH RANGE ON SAMPLER

0-6 6-12 12-18

5.0'-6.5» 16 36 100

10.0'-10.8' 100 100 '.3

CLIENT 1.AUC PROJECT

LQCAT|C IN

C*n«« S*mpl«r

NV SS3" 1£" 300# 14.0#

2r 30"

COL. STRATA A CHANGE REC.

1T1

.7

P.J.. * n-i «eill WRING "— — — NUMBER

30. O1 -32.0' 55 38

71 61 .5 Broun fine-medium Sand. Fine-coarse Gravel. Cobbles

6

R-1

35.0'-37.0'

38.0'-Z.3.0'

33 12

16 12 .5

1.3 in n

38.0'

Eurotm fine-medium Sand.gravel.

Cored Marble like Rock.

Fine-medium

SAMPLE IDCNTIFICATION PENETRATION RESISTANCE .Mc PORTIONS USCt ) REMARKS: •«,»«~ ,̂ IWIb.Wt.Wlif^SO-onrO.D.Somp^ » ~~- SPLIT SPOON CofMMonimt O»n»t«y Conotlw* ConsMlwicy 1iraca Oto10%

1 WALL TUBS M v-fy L40M O-* Vory ton | into 10to20% U UNO ISTURBCD PISTON »•• LOOM 3-* ton O OPEI u END ROD 10-I» MM. D«AM *•» M/ftnri IMM 70 to 35%

uCAU»ie «0-4t D««M ••!> ttlH Coring Time W WAS n 4»^»r« »o • V»ry O«n»« 1«-30 V-ftlllfA AUG ER SAMPLE jl . HM«

DE

PT

H

•OfltNO Glenn Drilling Inc. CLIENT Fuss &0'Neill NUMBER R.F.O. *1. Lake Road - Kt^cftC^ /, Ho«uJAC

12

MONITOR WFT.T.

Av - O«|Z A f

Itonitoring Point Location (relative to site features) : Q&r-attrt au.tu>wx& £ &rt "?•

Drilling Contractor: C^£NK OftAUt/MC. y INC. Supervising Engineer/Geologist: R.S

Well Construction Method: KOCLCV-* ^T£A> Auc/yes / 3'» / cAit/xG

WET.T. INFORMATION (ELEVATIONS TO NEAREST 0.1 FEET)

Ground surface elevation (MSL) : Well depth below ground surf ace r

8 1 Refusal: _ Yes X. No

Top of casing elevation ^JSL) : S\ Screened interval:

Length of Screen: S" «£T H2.l'-m ' **^

13

Bedrock well3

Casing length: ^2- f££r

Water-bearing rock unit: d^tisi

Water bearing sections (depths and approximate yields)

Length of rock core: I"2.

Diameter of core hole: 2

Thickness and depth of impermeable backfill:

O-ring^e seals: X Yes No

GEOLOGIC INFORMATION

Aquifer: &£Cf2.cUC-


Watershed (plume discharge watercourse): g

Aquifer materials (attach boring log) :(£>££.

Attach maps and plans required of G.l.j. and G.4

MONITOR WELL I N S T A L L A T I O N D E T A I L

FOR WELL IN BEDROCK

-|OO

TOP OF CASING EL. \s GROUND SURFACE EL.

3^

BOREHOLE DIA.

TOP OF BEDROCK EL.

-2 "*̂ 111

.,«, BOTTOM OF CASING EU.£_L_

1

12

l* COREHOLE DIAMETER BOTTOM OF COREHOLE EL. ——ii '

—VENTED LOCKING STC-CL CAP: _£_ YES NO

PROTECTIVE STEEL CASING: _/±_ YES _ NO

MOUNDED BACKFILL YES X NO

ONCRETE COLLAR: XT YES _ _ NO

BACKFII 1 UATPBIALT H0t£

-TYPE OF CASING; SCH VC

9" ? Lf ' 1.0. ^ O.D._£i_L_

JOINT TYPE: TH(i.£ftO£D- ~ pLM4>M

I-IMPERMEABLE BACKFILL: PfaULL-t5 /S£r

Glenn Drilling Inc. CLIENT Fuss & O'Neill WRING TT ..,, _ N(JM>eW

R.F.O. #1. LakaRoad * ....,_ liOjO*.'̂ ' / ^C^A^/^CK. vn r 101 FitchvMla, CT 06334 PROJECT

(203) 887-3621 LOCAT|(.1M No run 1 If. Ct. SHEET

ARCHITECT Ko-J

DRILLER Mir»ha/»l n»nn«i ENOINE6R _ _ QPA-S'iAO °' "^

dung Scmplcr Cor* larrtl INSPECTOR Bob Potterton MV SURFACE ELEV. . TYPE

NW SS

SI2E ID 3" 1-JLi' 2" DATE START Sept. 12, 1985 300# U0#

DATE FINISH Sept. 13. 1985 HAMMER FAL 24" 30" OFFSET HAMMER WT.

SAMPLE

o. z

BLOWS PER 6" COL. STRATA A FIELD CLASSIFICATION AND REMARKS Ul NO. DEPTH RANGE ON SAMPLER REC. CHANGE o

0-6 6-12 12-18

51 — 01 c, n i_5 ft» 61 1OO/ .ft Brown fine-coarse Sand and Gravel.

Cobbles and Boulders.

2 10.0'-10.5' 113 .5 Brown fine-coarse sand. Fine-medium Gravel. Cobbles and Boulders.

Augered 12.0'. Moved Hole and Drove Casing.

3. 15.0'-16.0' 53 100 .9

20I~ , 2n.O'- No Sample Recovery.

25.0' A 25.0'-27.0' 33 41 29 ,9 Brown fine-coarse Sand. Fine Gravel.

31

1\

5 31.0'-33.0' 31 29 31 1.1 Brown fine-medium Sand. Cobbles 31

6 35.0'-35.9' 51 100/. 4 r5 R-1 36.0'-37.0' .9 10 Cored Combination of Mica, Granite 36.0' and Quartz.

End of Bring: 37.0'

SAMPLE IOCNTIFICATION PENETRATION RESISTANCE MOfORTIONS UCfO REMARKS: Installed 2" PVC 140H».Wt. f«llir*M Ofl 2 O.O. Sftmptor i* ^j. tr -11 n j.*. j. or

S — SPLIT SPOON CoiMMonmt 0»nilty CoAMlv* Contt»l«ncv W»*» 0 IO 10% MOniOtr Well DOttOm at ^5. 1 WALL TUBE 0^ v«ry LOOM 0-» V««y Soft |ut«* 101020% 5.0* Screen:35.0' Riser u uwo (STUAteO PISTON S-* LOOM 1-4 Ko«t

10 J em* 20 to 35% 1 Protective Casing O OP6P 4 END ROD - » M*4- £>•"*• *•• M/kiiff i J0-4t t'1*H SAMPLE °*"i* *"" .

http:140H�.Wt

12

MONITOR WFT.T mMPLETQ

Town: Site:

Monitoring Point I.D. No.: m v * » - ( O t Date of completion

13

cock wellq

Causing length:

Waterbearing rock unit:

Water bearrtsw sections (depths and approximate yields)

Length of rock\ore:

Diameter of core ho3

Thickness and depth of Impermeable backfill:

0-rings sea"Vs: Yes \ No

GEOLOGIC INFORMATION


Watershed (plume discharge watercourse): Nofi.u>flut

Aquifer materials (attach boring log):


M O N I T O R WELL INSTALLATION DETAIL

FOR WELL IN UNCONSOLIDA TED D E P O S I T

-- V E N T E D L O C K I N G STEfcL— &**» : NO

OF 3ASING EL. •PROTECTIVE STEEL CASING: X YFS NO

GROUND SURFACE t / r- MOUNDED BACKFILL: YES >< NO

] ' -̂̂ ^ .̂:' — ^^ f̂-CONCRETE COLLAR: j£_ YES NO

_2_ — BACKFILL MATERIAL: , i Pg:

; ^j|

BfcNTTDN Htf/CbfteSfT G&AXT

3 - 1 TYPE OF CASING A SCRFFN? :̂ & 5CH. VO PMC.

^ 7 a*, im i p •7" Q p £. f BOREHOLE DIA. b^ JOINT TYPE: ThttA0£O

/II/— BACKFILL MATERIAL:

u • ^

* i _/ 4— / mtoicx^n o

Glenn Drilling Inc.R.F.O. *1. LakaRoad FitchvBla. CT 06334

(2031 887-3621

CLIENT

PHOJECI

LOCAT)C

• MAUC

,w

FIICQ &_ O'Nftil 1

(tfcicCff /rt«A^AVJt

Norwalk, Ct.

•ORINO NUMBER MW-102

SHEET

DRILLER Michael Deane ARCHITECT

ENG1N « B F.LE NO 926-85AO

INSPECTOR Hob Potterton TYPE Htf"* sT

COC4uv

Ba)f'Ct SURFACE ELEV.

DATE START

DATE FINISH

Sept.

Sent.

16.

17r

1985

1985

SIZE 1.0

HAMMER WT.

HAMMER FAL

300#

24" U0#

30" OFFSET

z

HI O

NO. DEPTH

SAMPLE

RANGE BLOWS PER 6" ON SAMPLER

0-6 612 12-18 REC.

COL. A

STRATA CHANGE FIELD CLASSIFICATION AND REMARKS

^ 1

R-1

R-2

5.0'-6.0'

5.0'-10.0'

10.0'-15.0'

76 103 .9 1.1

1.5

3 Lh L 4. 3

' 5.0'

Brown fine-coarse Sand. Weathered Rock. Auger to 6.0'. Moved Hole and Drove Casing. Cored Rock (®_ £>'

^

R-3 15.0'-19.0' 1 .3

^ 5 6 A 3 2 6 19.0'

End of Boring: 19.0'

Installed 2" PVC Monitor Well Bottom set at 15.5' 5.0' Screen 10.0 Riser 1 Protective Casing and Plug

SAMPLE 1DCNTIFICATION

S

UO

S*LI

UNO OPEt

r SPOON I WALL TUBE ISTURBED PISTON * END ROD HI SAMPLE

Con«*ionl*» D*iultyO-4 Vwy LOOM»•• LOOM

10-2* MM. O*AMJO-4* D»n»iO . Very O«»M

Conctlv* ConiltUncy 0-2 Vwy ten 1-4 toft »•• M/Stlft

••!» SUM 16-10 V-SIHI

1 I

I

'

rae*

intoam*

Ou>10%

10to20% 20 to 36%

JJ • Htra

12

MONITOR WFTTO>IPLETC)N REPORT

Town: Site:

Monitoring Point I.D. No.: Date of completion:

13

Bedrock, wellg

Casing length: | o tier

Water-bearing rock unit:

Water bearing sections (depths and approximate yields) :

Length of rock core: 13

Diameter of core hole: 2

Thickness and depth of impermeable backfill: 0.6 TH\QC TO

Q-rinĝ seal̂ : V Yes

GET?LOGIC

Aquifer:

Inferred relationship to plume: _ Within _ Outside _ Edge

Watershed (plume discharge watercourse) :

Aquifer materials (attach boring log) :



FOR WELL IN BEDROCK

CUAA 3QK-|02_ VENTED LOCKING 8TC-EL OAP; >< YES NO

TOP OF CASING EL. IO < PROTECTIVE STEEL CASING: _X.YES NO

U .-MOUNDED BACKFILL i .YES X NO/ o( 'GROUND SURFACE EL. -^rt>a»f_o.^

S?>^ i 1̂ 1> ' "̂ "1

CONCRETE COLLAR: X^ YES NOg /\ z' I— BACKFILL MATERIAL: fe6\fTcrt|-r^/cfcAifc^T

_-!_• .̂/ / f" £.CiVX "T

I^

6 X' 1 X̂ TYPE OF CASING: SCW VO P^C. r- rt l.D. _£ O-Dr% V.

BOREHOLE DIA. /x JOINT TYPE* THft.C/^0^0 " Pu l̂̂ H

N IMPERMEABLE BACKFILL-.

TOP OF BEDROCK %̂

1

Glenn Drilling Inc. CLIENT Fuss & O'Neill •ORINO NUMBER R.F.O. #1, Lake Road

JtcVLC^ / P «k£*>4UC FitchvUto. CT 06334 PROJ6C1 MW-103

(203) 887-3621 LQCAT|C SHEET IN Norwalk. Ct. No._J ARCHITECT

, DRILLER Michael Deane ENGINEER FILE NO. Q.26-85^0 of

Com* SamoKr Cor* t»f'«! INSPCCTOR Bob Potterton SURFACE ELEV. TYPE HV S

12

™tr< Town: NoftvAJftMC. Site: ^^

Monitoring Point I.D. No. : r rwAJ- j^S Date of completion:

DEPATC I.D. No: 19 SOWJM o^- o-uv_0,,xG. 2.

Monitoring Point Location (relative to site features) :

Drilling Contractor: &UNK OC-\U-

13

Bedrock

Casing length: /o. &


Water bearing sections (depths and approximate yields) :

Length of rock core: |o f-A£T

Diameter of core hole: £ Ve» -«


FOR WELL IN BEDROCK

/ntu -103 VENTED LOCKING 3TCCL CAP: X. YES NO

PROTECTIVE STEEL CASING: .^_YES NO TOP OF CASING EL. 83

/ pMOUNDED BACKFILL i YES _X_ NO ' f GROUND SURFACE EL. 83 —i ^po* o-l*

* /

\ \^

DE

PT

H

WRING Glenn Drilling Inc. CLIENT Fuss & O'Neill NUMBER R.F.D. *1, Lake Road MW-104

Fltchv«ta, CT 06334 PROJECT

(203I 887-3621 LOCAT(C Norwalk, Ct. SHEET

ARCHITECT ENG'NEERDRILLER Michael Deane FILE NO 926-85^0

C»»'"« Stmpltf Cor* ••»•! INSPECTOR Bob Potterton try SURFACE ELEV. TYPE HW SS

^" 1f 2" DATE START Sept. 17, 1985 SIZE 10

300# U0# HAMMER WT. ?/" 30" DATE FINISH Sept. 18, 1985 UAUUCB CAI 1 ^ -^ OFFSET

SAMPLE BLOWS PER 6" COL. STRATA

A FIELD CLASSIFICATION AND REMARKS CHANGE NO. DEPTH RANGE ON SAMPLER REC. 0-6 6-12 12-18

1 5.0'-5.6' 65 100/ 1 .6 Brown fine-coarse Sand. Fine-medium R-1 6.0'-11.0' 1,7 5 6.0' gravel. Cobbles and Boulders.

11 15 Cored Rock. 13

—2-5-J R-2 11 .0'-13.0' .8 15

21 31

R-'J n.0'-15.7« 1.0 17 1O

19 15.7' End of Boring: 15.71

Installed 2" PVC Monitor Well Bottom set at H.2' 5.0' Screen 9.8' Riser 1 Protective Casing and Plug.

CAMPLE 1DCNTIFICATION PORTIONS UttD REMARKS: S SMJ T SPOON Con«*ioniMt O*ntlly CoKMiv* ContltUncy tMM OlO 10%

1 WALL TUBE 0-4 Vwy LOOM 0-7 Vary Soft Iinto 10to20% U UNO ISTURBED PISTON >•• LOOM J-4 toft

io-2t M«a, D«nM »-« M/snff ionw 20 to 38% O OPCI i END ROD 10-4* O*OM t-l» SUM H SAMPLE «< ?«...iiMt em A Coring Time SO • Very D«nM It-JO V-Sllff *

ER SAMPLE Jl • H»f«

12

METT REPORT

Town: N&ft^ftMk Site:

/ I * I.D. No.: mw-lo^ Date of ion: ^ / i & l & S Monitoring Point completion

C2P/WPC I.D. No: IO3-CRZ 5" f£4r SOUTH cf

>Vonitoring Point Location (relative to site features): e,vxicoirC(_T

13

Bedrock

Casing length: ^.8

Water-bearing rock unit: Gr


FOR WELL IN BEDROCK

VENTED LOCKING 9TGCL CAP: _£_ YES NO

TOP OF CASING EL. PROTECTIVE STEEL CASING:^ YES NO

MOUNDED BACKFILLi YES NO GROUND SURFACE EL

ONCRETE COLLAR: X YgS _ NO

BACKFILL MATERIAL: rrfc/Cfcn*M ^Ar^ .^^

TYPE OF CASIHS; SCH VO

o" . I.D. ^ O.D

BOREHOLE DIA. JOINT TTPE: TH9JLAUQ

IMPERMEABLE BACKFILL:

TOP OF BEDROCK g£r(TOH

Glenn Drilling Inc. CLIENT Fuss &. 0"Neill WRING NUMBER R.F.O. 11. Lake Road

MAkJC tP^Oftfy^ *>&*'̂ m MW— 105 Fltchvilto, CT 06334 PROJECT (203) 887-3621 LQCAT|C xsj Norwalk, Ct. SHEET

No.-J ENGINEER ofARCHITECT

DRILLER Michael Deane FILE NO. QP^-ftV.p ' • fctS Pe>Trt/

C*i."fl Simpler Cor* ••»•! INSPECTOR Tim &INC4 4fl.1l SURFACE ELEV. TYPE HW SS NX

DATE START .Sppt. 20f 1985 SIZE 10 1 -̂n LINE A STATION HAMMER WT. 300# U0#

DATE FINISH Sept. 23. 1985 24" 30" OFFSET SAMPLE

ft.x

BLOWS PER 6" COL. STRATA ut ON SAMPLER A CHANGE FIELD CLASSIFICATION AND REMARKS NO. DEPTH RANGE REC. 0

0-6 6-12 12-18

1 5.0'-7.0« A8 90 56 1.? Brown fine-coarse sand and gravel 75 Weathered Rock.

10' •32 10.0'-10.8' 5A 100/ .ft Brown fine-coarse sand and gravel. Weathered Rock.

3 15.0'-16.5' 31 13 10? Q Dark Brown fine-coarse Sand and Gravel. Weathered Rock. M>CK AT

R-1 1ft-0'-??.n' 1 9 17 16 18 19 I ?? i

R-2 23.0'-27.5'

27.5' End of Boring: 27.5'

Installed 2" PVC Monitor Well Bottom set at 24.0' 5.0' Screen 19.0' Riser 1 Protective Casing and Plug

Reamed hole with Roller Bit to 25.0' Telescoped NW Casing to maintain Hole.

SAMPLE 1DCMTIHCATION PENETRATION RESISTANCE PROPORTIONS USE!

S SPLI T SPOON Con«*ioni«tt Ocnilty ColtMlv* Co««lit»ney_ tfM* 0 to 10% 1 WALL TUBE 0-4 V*r y LOOM 0-» V»fy Soft ||R|* 10 to 20%

U UNO ISTURBEO PISTON »•• Loo* J-4 Soft io-2t MM. D*n«« »-• M/itiif tarn* 20 to 38% O OPEI « END ROD J0-4t " O»nt» 8-1 J SUM ^^, *«.«•«« roi A Corrin§ Time H SAMPLE SO* V«ry D*nM lt-10 V-SII(f •"• ^ «• OB»

ER SAMPLE

12

NITOV/ETTcr)MPLEnON REPORT

mAtr< A V

13

Bedrock well3

Casing length: (^ £G£T

Water-bearing rock unit: £/itis»s

Water bearing sections (depths and approximate yields)

Length of rock core: 8 f^-T

Diameter of core hole: 2. 73 -iMc«t-S

Thickness and depth of impermeable backfill: ^ fctfcr

O-rings seals: X^ Yes No

GEOLOGIC INFORMATICM

Aquifer: BfePftAOf-


Watershed (plume discharge watercourse):

Aquifer materials (attach boring log):


MONITOR WELL I N S T A L L A T I O N DETAIL

FOR WELL IN BEDROCK

TOP OF CASING EL.

GROUND SURFACE EL. -\ A^frJi

1 i , A

i BOREHOLE DIA.

TOP OF BEDROCK EL.

r?

BOTTOM OF CASING -,

I*'.COREHOLE DIAMETER BOTTOM OF COREHOLE EL.—i— i''

\5»',

VENTED LOCKING STCCL MP:\ YES_ NO

PROTECTIVE STEEL CASING: _£. YES _ NO

-MOUNDED BACKFILL i YES X NO

ONCRETE COLLAR: Xf Ygs NO

•BACKFILL MATERIAL: DftllC Cu.T-nf«C.S

-TYPE OF CASIHG-. SCH

I.D. 2. n.n. "2.H

JOINT TVPg: THR.C&D6D '

.IMPERMEABLE BACKFILL

w 0- RING SEAL YES . N O

5 Or PMC

Glenn Drilling Inc. CLIENT p,,ffT X, n»N»i-M iORINO R.F.O. #1. Lake Road RtchvHto, CT 06334 PROJECT MAUC flCSCC^/N^^flCX i?™

(203) 887-3621 LOCATION Nr>rTjn1Vr fit. SHEET

ARCHITECT No._J

DRILLER Michael Deane ENGINEER FILPNO ' 926-8540 of -L—

C*»'"fl S«mpl*r Cort ••rrcl INSPECTOR Bob Potterton SURFACE ELEV. .. ,, TYPE HV

DATE START Sept. 23, 1985 SIZE 1.0. / 300#

HAMMER WT. wDATE FINISH 3f»pt.- 2Af 1985 HAMMER FAL L OFFSET . . SAMPLE

Z BLOWS PER 6" COL. STRATA

Ill A CHANGE FIELD CLASSIFICATION AND REMARKS ft. NO. DEPTH RANGE ON SAMPLER REC. O 0-6 6-12 12-18

51" Drove Casing to 16.51.

16.5' End of Boring: 16.51

Installed 2" PVC Monitor Well Bottom set at 16.01

5.01 Screen 11.0' Riser 1 Protective Casing and Plug.

•AMPLE 1DCNTIFICATION PORTIONS USED MEMAMM: ( SPLC r SPOON COAMtonlcu D«ntlty Coit*»lv« ContMloncy traM Oto10%

U UNO WALL TUBE

STURBED PISTON 0-4»-»

Vory LOOM LOOM

0-Z 1-4

Vory Soft Soft

|Mto 10ie20%

O OPE* 1 END ROD I0-2t M*4. O*1M 5-* M/Sllff 1OIM 20 to 36% •1 SAMPLE

JO-4t»0 •

D»«M V*ry O«nM

••»» SUM 14-JO V-Stlff •«* MioBML COL A ,._

Jl • H«fO

12

MONITOR WFTJ (DMPLETIO REPORT

Town: NoftsxJftLK. Site:

Monitoring Point I.D. No.: muo- lo fe Date of completion: f / Z W /

I.D. No:

>:-onitoring Point Location (relative to site features): nofcm of 6«-uu*Ai&

Drilling Contractor: Cu-£NrH CX\vxt.xG. i/*c. Supervising Engineer/Geologist: A.

Well Construction 1-fethod: Dftox^ *{-(/>(C«

WETT. TMFQpviATION (ELEVMIONS TO NEAREST 0.1 FEET)

Ground surface elevation (HSL) : Well depth below ground surface:

&$ Refusal: _ Yes X Nb /

Top of casing elevation (MSL) : 33 Screened interval:

Length of Screen: S" F££T \ i , 5 f - ( t > ~ s '

Length of riser pipe: (( f-t£r

Screen type: Soc-rrfeO PWC Screen Slot size: 10

Filter fabric: _ Yes X No Screen packing: X Yes _ No

If yes, Thickness:

Well inside diameter: 2 -/^iCHtS Material:

grain size:

Impermeable

Well casing material and schedule: Estimated K screened interval •5CH£.t»jH.£. Vo PVC

K-ethod of well development: BA»U

13

Bedrock wells

Casbw length:


Water bearing, sections (depths and approximate yields)

Length of rock cbt^:

Diameter of core holes.

Thickness and depth of imp^EHjeable backfill:

O-rings seals: _ .Yes _ "^

GEOLOGIC TNPnRMATTON

Aquifer: SAM.O 'L

Inf erred relationship to plume: _ Within _ Outside _ Edge

Watershed (plume discharge watercourse): HO&UJAUC

Aquifer naterials (attach boring log) : SA/

- 14

M O N I T O R WELL INSTALLATION DETAIL

FOR WELL IN UNCONSOL IDA TED D E P O S I T

VENTED LOCKING STEEL C A P : X.YES _ NO

TOP Or CASING EL.

GROUND SURFACE EL.

BOREHOLE DIA.

WELL POINT EL

BOTTOM OF BORING EL

PROTECTIVE STEEL CASING: ,X_YES NO

MOUNDED BACKFILL: YES .X NO

CONCRETE COLLAR: V" YES _ NO

BACKFILL MATERIAL'.

TYPE OF CASING a SCREEN:

5CH. VO PMC,

I.D._£ O.D..

JOINT TYPE:

IMPERUEABLE BACKFILL!

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JONATHAN Z CANNON NCW YORK N.V, . IOI7B IZIfl 597-335S ...different investigatory approac tho any...

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Transcript of JONATHAN Z CANNON NCW YORK N.V, . IOI7B IZIfl 597-335S ...different investigatory approac tho any...