1.0 SOIL GAS MONITORING RESULTS · 2018-10-19 · Finn or David Buscemi of Golder at 856-793-2005....

Golder Associates Inc. 200 Century Parkway, Suite C Mt. Laurel, New Jersey, USA 08054

T: +1 856 793-2005 +1 856 793-2006

Golder and the G logo are trademarks of Golder Associates Corporation golder.com

July 24, 2018 Project No. 023-6105-018

Mr. Andrew Nichols

Minnesota Pollution Control Agency

Voluntary Investigation & Cleanup Program

520 Lafayette Road

St. Paul, MN 55155

RE: ADDITIONAL SOIL GAS MONITORING RESULTS - FORMER WASTE RECLAMATION AREA EAST SIDE SHOREHAM YARD, MINNEAPOLIS, MN (VIC PROGRAM SITE ID VP5080) / SOO LINE (SR380)

Dear Andrew:

On behalf of Soo Line Railroad Company d/b/a Canadian Pacific (CP), this letter presents the results of additional

soil gas monitoring near the former Waste Reclamation area at the Shoreham Yard (Site) in Minneapolis,

Minnesota.

1.0 SOIL GAS MONITORING RESULTS

Soil gas monitoring was conducted on February 22, 2018 in accordance with the plan for additional soil gas

monitoring, as discussed with MPCA on January 23, 2018, approved by MPCA via email on January 29, 2018.

The work included soil gas sampling at three locations previously monitored, adjacent to the eastern property

boundary (SGB17-01, SGB17-02, and SGB17-03) as well as existing monitoring probe SGB4-D in the former

Waste Reclamation Area. Semi-permanent soil gas probes (SGB18-01, SGB18-02, and SGB18-03) were

installed at former temporary sampling locations SGB17-01, SGB17-02, and SGB17-03, respectively, to allow

collection of vapor samples between approximately 8 and 10 feet below ground surface (bgs), consistent with the

depth of the previous samples at these locations and the existing probe at SGB4-D. These soil gas probes were

designated SGB18-01, SGB18-02, and SGB18-03, as shown in Figure 1. The locations were approximately 60

feet east of soil gas probe SGB4-D, in a north-south alignment parallel to the eastern property boundary with

Central Avenue NE.

Prior to sample collection, probes were purged of at least three volumes of air at no more than 100 ml/min and

field VOC measurements were collected using a calibrated photoionization detector (PID). Soil gas samples were

collected over a one-hour period using individually certified clean, 6 Liter Summa canisters (flow rate 100 ml/min).

Samples were analyzed by USEPA Method TO-15 for tetrachloroethylene (PCE) and trichloroethylene (TCE).

One field duplicate was collected and analyzed for quality control purposes in addition to the four primary

samples.

A data quality evaluation of the laboratory deliverables was completed, including reviewing report completeness,

holding time adherence, potential blank contamination, and accuracy and precision data.

Mr. Andrew Nichols Project No. 023-6105-018

Minnesota Pollution Control Agency July 24, 2018

2

Soil gas results are provided in Table 1, compared to 33X the Minnesota Pollution Control Agency (MPCA)

compound-specific, industrial intrusion screening values (33x ISVs). As shown in Table 1, none of the PCE and

TCE results exceeded MPCA’s established screening level of 33x ISVs at the locations sampled along the

eastern property boundary. PCE slightly exceeded the screening level at location SGB4-D within the former

Waste Reclamation Area.

2.0 CONCLUSIONS / RECOMMENDATIONS

PCE and TCE results from both the previous (April 2017) and current soil gas monitoring events did not exceed

33x ISVs at all locations sampled along the eastern property boundary, and there are no potential soil gas

receptors in the vicinity of any of the sampling locations. The nearest occupied building is over 150 feet to the

east, and previous soil gas samples in 2008 along the east side of Central Avenue NE, prior to completion of soil

vapor extraction treatment, were mostly non-detect and did not indicate any level of concern at those locations.

No further action is considered necessary for soils in the Former Waste Reclamation Area, and additional soil gas

monitoring is not recommended.

If you have any questions, please do not hesitate to contact LeeAnn Thomas of CP at 612-904-6130, or Steve

Finn or David Buscemi of Golder at 856-793-2005.

Very truly yours,

Golder Associates Inc.

David N. Buscemi, PE P. Stephen Finn, C.Eng.

Senior Engineer Principal

DNB/PSF/bjb

CC: Allan Timm, MPCA LeeAnn Thomas, CP James Vondracek, Ashland Inc. Jeremy Coughlin, CP Shoreham Area Advisory Committee Steve Helgen, Integral

Attachments: Table 1 – Soil Gas Analytical Results Figure 1 – Former SVE System Layout and Soil Gas Monitoring Locations

g:\projects\2002 projects\023-6105 cpr\soil gas monitoring (post-sve)\july 2018 letter rpt\soil gas mon rpt (7-24-18).docx

July 2018 TABLE 1

Soil Gas Analytical Results

Soil Vapor Sampling

Canadian Pacific Shoreham Yard Facility

023-6105

\\mtlaurel\data\PROJECTS\2002 Projects\023-6105 CPR\Soil Gas Monitoring (Post-SVE)\July 2018 Letter Rpt\

2018_02 Analytical Results Table Final.xlsx Page 1 of 1

SGB18-01 SGB18-01-DUP SGB18-02 SGB18-03 SGB4-D

2/22/2018 14:28 2/22/2018 14:32 2/22/2018 15:05 2/22/2018 16:35 2/22/2018 18:15

Parameter CAS # Units

MPCA Industrial 33X

Intrusion Screening

Value* (ISV/0.03) Result Result Result Result Result

Tetrachloroethene 127-18-4 ug/m3 1100 880 880 930 680 1300

Trichloroethene 79-01-6 ug/m3 230 34 32 32 14 65

Notes and Abbreviations:

ND - Not detected

ug/m3 - Micrograms per cubic meter

*Based on Industrial ISVs and Interim ISVs from the following sources:

ISVs for Vapor Intrusion Risk Evaluation - February 2009 Version:

http://www.pca.state.mn.us/index.php/view-document.html?gid=3163and Interim ISV Short Guidance - February 13, 2017:

https://www.pca.state.mn.us/sites/default/files/c-rem3-12.pdf

Checked By: AA

Sample Name

Sample Date

http://www.pca.state.mn.us/index.php/view-document.html?gid=3163

https://www.pca.state.mn.us/sites/default/files/c-rem3-12.pdf

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I.E.=849.9

I.E.=844.0

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VEW06-82-EA1

VEW06-84-EA3

VP06-60-CA2

VP06-92-EA4

VP06-91-EA3

VP06-90-EA2

VP06-89-EA1

VEW06-85-EA4

VEW06-86-ET1

VP06-93-ET1

VP06-94-ET2

VP06-95-ET3

VP06-96-ET4

VP06-97-ET5

VEW06-87-ET2

VEW06-88-ET3

SGB6-D

SGB5-D

SGB4-D

SGB6-S

SGB5-S

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SGB17-02/SGB18-02

SGB17-03/SGB18-03

SGB17-04

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FIGURE

1

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2018-07-24

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FORMER WASTE RECLAMATION AREA SOIL GAS MONITORING

SOO LINE SHOREHAM FACILITY

MINNEAPOLIS, MINNESOTA

FORMER SVE SYSTEM LAYOUT AND SOIL GAS MONITORING

LOCATIONS

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1. ALL COMPONENTS ASSOCIATED WITH THE SVE SYSTEMS WERE REMOVED OR

DECOMMISSIONED WITH THE EXCEPTION OF SOIL GAS PROBES SGB4-S AND SGB4-D AND

SGB6-S AND SGB6-D.

NOTE(S)

LEGEND

BITUMINOUS SURFACE

CONCRETE SURFACE

REFERENCE(S)

1. BASE MAP FOR TOPOGRAPHIC SURVEY OF SHOREHAM EAST SIDE TAKEN FROM DIGITAL

CAD FILE 36579 C3D TO OTHERS.dwg, SURVEYED BY EGAN, FIELD & NOWAK, INC.

2. PROPERTY LINE AND ROW FROM DIGITAL CAD FILE NEW_BASE_8_00-property line.dwg

PROVIDED BY AMEC EARTH AND ENVIRONMENTAL, INC.

3. SVE WELL LOCATIONS TAKEN FROM EXCEL FILE BY "SUNDE LAND SURVEYING, LLC.",

SEPTEMBER 19TH, 2006.

4. SHALLOW SOIL GAS BORING AND DEEP SOIL GAS BORING LOCATIONS TAKEN FROM

DIGITAL CAD FILE HSJ2013506SB.DWG, ENTITLED "LOCATION SURVEY & BASE MAP,"

PREPARED BY HARRY S. JOHNSON CO., INC. LAND SURVEYORS, DATED NOVEMBER 26,

2013.

0

FEET

20 40

1'' = 20'

FACILITY BOUNDARY

WOOD FENCE

OVERHEAD WIRE

STORM SEWER

RAILROAD TRACKS

TILL SVE WELL - DECOMMISSIONED

ALLUVIUM SVE WELL - DECOMMISSIONED

SVE SYSTEM ENCLOSURE - DECOMMISSIONED

SVE SYSTEM PIPING (ABOVE GRADE) - REMOVED

TILL MONITORING PROBE - DECOMMISSIONED

ALLUVIUM MONITORING PROBE - DECOMMISSIONED

SVE SYSTEM PIPING (BELOW GRADE) - REMOVED

FIXED PIPE SUPPORT - REMOVED

HEAT EXCHANGER - REMOVED

CARBON VESSEL - REMOVED

FLEXIBLE (FLEX) HOSE - REMOVED

CHAIN LINK FENCE - REMOVED

X X X

SHALLOW SOIL GAS BORING (SGB) LOCATION (SEE REFERENCE 4)

DEEP SOIL GAS BORING (SGB) LOCATION (SEE REFERENCE 4)

SANITARY SEWER

WATER MAIN

UTILITY POLE

2017 AND 2018 SOIL GAS MONITORING LOCATION

2008 SOIL VAPOR SAMPLING LOCATION

3/7/2018Ms. Alison ZollGolder Associates, Inc.200 Century ParkwaySuite CMt. Laurel NJ 08054

Project Name: CP - Shoreham YardProject #: 023-6105-018

Dear Ms. Alison Zoll

The following report includes the data for the above referenced project for sample(s) received on 2/26/2018 at Air Toxics Ltd.

The data and associated QC analyzed by Modified TO-15 are compliant with the project requirements or laboratory criteria with the exception of the deviations noted in the attached case narrative.

Thank you for choosing Eurofins Air Toxics Inc. for your air analysis needs. Eurofins Air Toxics Inc. is committed to providing accurate data of the highest quality. Please feel freeto contact the Project Manager: Ausha Scott at 916-985-1000 if you have any questions regarding the data in this report.

Regards,

Ausha Scott

Project Manager

Workorder #: 1802505

Page 1 of 14

Ms. Alison ZollGolder Associates, Inc.200 Century ParkwaySuite CMt. Laurel, NJ 08054

WORK ORDER #: 1802505

CLIENT: BILL TO:

PHONE:

Accounts PayableGolder Associates, Inc.200 Century ParkwaySuite CMt. Laurel, NJ 08054

856-793-2005

856-793-200602/26/2018

DATE COMPLETED: 03/07/2018

P.O. # L1701

PROJECT # 023-6105-018 CP - Shoreham Yard

Work Order Summary

FAX:

DATE RECEIVED:CONTACT: Ausha Scott

NAMEFRACTION # TEST VAC./PRES.RECEIPT

PRESSUREFINAL

01A SGB18-01 Modified TO-15 6.5 "Hg 5 psi02A Duplicate Modified TO-15 6.5 "Hg 5 psi03A SGB18-02 Modified TO-15 7.0 "Hg 5 psi04A SGB18-03 Modified TO-15 7.5 "Hg 5 psi05A SGB4-D Modified TO-15 6.5 "Hg 5 psi06A Lab Blank Modified TO-15 NA NA07A CCV Modified TO-15 NA NA08A LCS Modified TO-15 NA NA08AA LCSD Modified TO-15 NA NA

CERTIFIED BY:

Technical Director

DATE:

Name of Accreditation Body: NELAP/ORELAP (Oregon Environmental Laboratory Accreditation Program)Accreditation number: CA300005, Effective date: 10/18/2016, Expiration date: 10/17/2017.

180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630(916) 985-1000 . (800) 985-5955 . FAX (916) 985-1020

03/07/18

Page 2 of 14

This report shall not be reproduced, except in full, without the written approval of Eurofins Air Toxics, Inc.

Eurofins Air Toxics Inc.. certifies that the test results contained in this report meet all requirements of the NELAC standards

Certification numbers: AZ Licensure AZ0775, NJ NELAP - CA016, NY NELAP - 11291, TX NELAP - T104704434-16-11, UT NELAP CA0093332016-7, VA NELAP - 8113, WA NELAP - C935

LABORATORY NARRATIVEModified TO-15

Golder Associates, Inc.Workorder# 1802505

Five 6 Liter Summa Canister (100% Certified) samples were received on February 26, 2018. The laboratory performed analysis via modified EPA Method TO-15 using GC/MS in the full scan mode.

This workorder was independently validated prior to submittal using 'USEPA National Functional Guidelines' as generally applied to the analysis of volatile organic compounds in air. A rules-based,logic driven, independent validation engine was employed to assess completeness, evaluate pass/fail of relevant project quality control requirements and verification of all quantified amounts.

Method modifications taken to run these samples are summarized in the table below. Specific project requirements may over-ride the ATL modifications.

Requirement ATL ModificationsTO-15Initial Calibration </=30% RSD with 2

compounds allowed out to < 40% RSD

</=30% RSD with 4 compounds allowed out to < 40% RSD

Blank and standards Zero Air UHP Nitrogen provides a higher purity gas matrix than zero air

Receiving Notes

There were no receiving discrepancies.

Dilution was performed on samples SGB18-01, Duplicate, SGB18-02, SGB18-03 and SGB4-D due to the presence of high level target species.

Analytical Notes

Eight qualifiers may have been used on the data analysis sheets and indicates as follows: B - Compound present in laboratory blank greater than reporting limit (background subtractionnot performed). J - Estimated value. E - Exceeds instrument calibration range. S - Saturated peak. Q - Exceeds quality control limits. U - Compound analyzed for but not detected above the reporting limit, LOD, or MDL value. See data page for project specific U-flag definition. UJ- Non-detected compound associated with low bias in the CCV N - The identification is based on presumptive evidence.

File extensions may have been used on the data analysis sheets and indicates as follows: a-File was requantified b-File was quantified by a second column and detector

Definition of Data Qualifying Flags

Page 3 of 14

r1-File was requantified for the purpose of reissue

Page 4 of 14

MODIFIED EPA METHOD TO-15 GC/MS FULL SCANSummary of Detected Compounds

Client Sample ID: SGB18-01

Lab ID#: 1802505-01A

(ug/m3)(ug/m3)(ppbv)(ppbv)CompoundAmountRpt. LimitAmountRpt. Limit

0.43 6.4 2.3 34Trichloroethene

0.43 130 2.9 880Tetrachloroethene

Client Sample ID: Duplicate

Lab ID#: 1802505-02A





Lab ID#: 1802505-03A





Lab ID#: 1802505-04A




Client Sample ID: SGB4-D

Lab ID#: 1802505-05A


1.7 12 9.2 65Trichloroethene

1.7 190 12 1300Tetrachloroethene

Page 5 of 14

Client Sample ID: SGB18-01Lab ID#: 1802505-01A

MODIFIED EPA METHOD TO-15 GC/MS FULL SCAN

20022710File Name:Dil. Factor: 4.28

Date of Collection: 2/22/18 2:32:00 PMDate of Analysis: 2/27/18 02:28 PM


0.43 6.4 2.3 34Trichloroethene0.43 130 2.9 880Tetrachloroethene

Container Type: 6 Liter Summa Canister (100% Certified)

Limits%RecoverySurrogatesMethod

83 70-1301,2-Dichloroethane-d4107 70-130Toluene-d8106 70-1304-Bromofluorobenzene

Page 6 of 14

Client Sample ID: DuplicateLab ID#: 1802505-02A









Page 7 of 14










Page 8 of 14










Page 9 of 14

Client Sample ID: SGB4-DLab ID#: 1802505-05A





1.7 12 9.2 65Trichloroethene1.7 190 12 1300Tetrachloroethene




Page 10 of 14

Client Sample ID: Lab BlankLab ID#: 1802505-06A



Date of Collection: NA Date of Analysis: 2/27/18 11:30 AM


0.10 Not Detected 0.54 Not DetectedTrichloroethene0.10 Not Detected 0.68 Not DetectedTetrachloroethene

Container Type: NA - Not Applicable


87 70-1301,2-Dichloroethane-d499 70-130Toluene-d8

103 70-1304-Bromofluorobenzene

Page 11 of 14

Client Sample ID: CCVLab ID#: 1802505-07A




%RecoveryCompound

124Trichloroethene113Tetrachloroethene




Page 12 of 14

Client Sample ID: LCSLab ID#: 1802505-08A




Limits%RecoveryCompoundMethod

117 70-130Trichloroethene115 70-130Tetrachloroethene



86 70-1301,2-Dichloroethane-d499 70-130Toluene-d8

106 70-1304-Bromofluorobenzene

Page 13 of 14

Client Sample ID: LCSDLab ID#: 1802505-08AA




Limits%RecoveryCompoundMethod

118 70-130Trichloroethene117 70-130Tetrachloroethene




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1.0 SOIL GAS MONITORING RESULTS · 2018-10-19 · Finn or David Buscemi of Golder at 856-793-2005....

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