july 10, 2015 ed olson mpca - university of minnesota...july 10, 2015 ed olson mpca 520 lafayette...

July 10, 2015

Ed OlsonMPCA520 Lafayette Avenue NorthSt. Paul, MN 55115

RE: George’s Used EquipmentResponse Action ReportUMore Park OU2 and OU3Rosemount, MNBay West Proposal J140651

Dear Mr. Olson:

Bay West LLC (Bay West) is pleased to submit this report documenting the completion of theJune 2015 response action and associated supplemental investigation activities action at theGeorge’s Used Equipment (GUE) Operable Unit (OU) 2 and OU3 in the University of Minnesota(U of M) UMore Park, in Rosemount, Minnesota (the Site; Figure 1). This report presents thescope of work, results of the supplemental investigation and response action, andrecommendations for the Site.

1.0 Introduction

Excavation activities completed at the Site by Bay West in September 2014 revealedpolychlorinated biphenyl (PCB) concentrations in soil exceeding 50 milligrams per kilogram(mg/kg) east of the former GUE building pad (Building 716A) in sample location 716A-SS37 andin a previous sample collected at 716A-SS13. The presence of elevated PCBs in this portion ofthe Site suggested that additional soil delineation, both vertically and horizontally, waswarranted.

At the request of the U of M, on October 14, 2014, Bay West completed delineation of the extentand magnitude of PCB contamination in soil at the Site to be removed pursuant to thepreviously approved Response Action Plan (RAP) for the Site. Based on analytical results forsidewall and bottom samples collected from the September 2014 excavation at the Site, BayWest completed 18 soil borings (SP-01 through SP-18) to 4 feet below ground surface (bgs),with soil samples collected at intervals of 0-2 feet and 2-4 feet for laboratory analysis of PCBs.Laboratory analytical results were compared to the cleanup objectives outlined in the previouslyapproved RAP. Total PCB concentrations from 3 of the 18 samples from the 0-2 foot intervalwere greater than the cleanup criteria of 1 mg/kg for the 10-inch cover material. There were nototal PCBs detected at concentrations exceeding 1 mg/kg in the soil samples analyzed in the2-4 foot interval. Results of the supplemental investigation are further detailed in theNovember 14, 2014, Supplemental Investigation Report.

On December 1-5, 2014, based on the results of the October 14, 2014, supplementalinvestigation, Bay West completed the excavation of 2,160.96 tons of soil at the Site. Bay Westcollected confirmation sidewall soil samples from the 0-2 feet intervals every 35 lineal feet.

UMP020801

George’s Used EquipmentRemoval Action Report

Page 2

Laboratory analytical results were compared to the cleanup objectives outlined in the previouslyapproved RAP. Based on the laboratory results, the excavation area was delineated andcomplete to the east, west and south; however, the northeast corner sidewall samples of theexcavation had PCB concentrations of 27 mg/kg at 716A-SS51 and 110 mg/kg at 716A-SS52.Sample locations 716A-SS51 and 716A-SS52 are located in the former driveway/approach areaof the Site. Based on these analytical results, Bay West recommended completing additionalinvestigation activities to evaluate the magnitude and extent of the PCB contamination in thisarea.

This report presents the results of the additional investigation and documents the responseaction implemented to mitigate PCB contamination at the Site in accordance with therequirements of the Record of Decision (ROD).

2.0 Additional Investigation and Removal Action Scope of Work

Bay West conducted the following scope of work:

· Amended the current Health and Safety Plan, as required by Occupational Safety andHealth Administration (OSHA);

· Conducted a utility meet with public utility locators for each field event to verify if theproposed soil boring and excavation locations were acceptable;

· Advanced 20 soil borings using a hand auger for the purpose of soil sample collection(Figure 2). Two composite soil samples were collected from each soil boring from theground surface to 10 inches bgs, and 10 inches to 24 inches bgs in each soil boringlocation;

· Submitted 31 soil samples and two duplicate soil samples for laboratory analysis ofPCBs;

· Based on additional investigation results, areas with PCB concentrations greater than 10mg/kg were excavated (Figure 2) as required in the ROD. A total of 26 tons ofexcavated soil was transported to Vonco II Landfill in Becker, Minnesota, for disposal;

· Backfilled excavated areas with a minimum of 12 inches of virgin sand in 6-inch lifts; and

· Transported and placed an additional 15 inches of virgin sand to cover the area wherePCBs were detected between 1 and 10 mg/kg. The entire area where soils wereexcavated was covered with 3 inches of top soil, and the area was planted with a nativeseed mix.

Further details regarding the additional investigation and response action are discussed belowin Section 3.0 and Section 4.0, respectively.

3.0 Additional Investigation Activities and Results

On April 27, April 28, and May 15, 2015, Bay West conducted additional investigations todetermine the extent and magnitude of PCB contamination in the vicinity of soil samples SS-51and SS-52. Using a hand auger, Bay West advanced 20 soil borings (SS-57 through SS-76;Figure 2) and collected two composite soil samples from each soil boring: the first compositesample from the ground surface to 10 inches bgs and the second from 10 inches to 24 inchesbgs. Bay West submitted 31 soil samples and 2 duplicate soil samples to Legend TechnicalServices for analysis of PCBs.

Laboratory analytical results were compared to the cleanup objectives in the ROD. Nine of the15 samples analyzed from the 0 to 10 inch bgs interval had total PCB concentrations less than 1mg/kg. Four samples had PCB concentrations between 1 and 10 mg/kg. One sample analyzed

UMP020802


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from the 0 to 10 inch bgs interval had a total PCB concentration between 10 and 50 mg/kg(SS-67, 10.9 mg/kg), and one sample analyzed from the 0 to 10 inch bgs interval had a totalPCB concentration greater than 50 mg/kg (SS-61, 89.8 mg/kg). Complete laboratory analyticalresults from these samples are presented in Table 1, and laboratory analytical reports areincluded in Appendix A. Sample locations are shown on Figure 2. Field notes are included inAppendix B.

Based on the additional investigation findings described above, the response actionsrecommended in the 2015 Supplemental Investigation/Removal Action Work Plan (ApprovedWork Plan) approved by the MPCA on June 5, 2015, were implemented.

4.0 Response Actions

On June 15 through 19, 2015, Bay West excavated soil in the vicinity of soil samples SS-51,SS-52, SS-61, SS-62 and SS-67, where PCB concentrations exceeded 10 mg/kg. After theremoval of the impacted soil, a protective cover was placed in areas with PCB concentrationsgreater than 1 mg/kg and less than 10 mg/kg in the upper 10 inches of soil. The following detailsthe excavation activities conducted at the Site:

· Removed brush and debris from proposed excavation area;

· Excavated 26 tons of PCB contaminated soil in the areas of SS-51 and SS-67 identifiedin Figure 2 with PCB concentrations greater than 10 mg/kg, but less than 50 mg/kg. ThePCB contaminated soil was transported to Vonco II landfill in Becker, Minnesota, fordisposal. Weigh tickets from the Vonco II landfill are included in Appendix C;

· Excavated and containerized soil with PCB concentrations greater than 50 mg/kg.Approximately one cubic yard of soil per location at SS-51, SS-52, and SS-61 wasremoved to a depth of 1 foot bgs as shown on Figure 2. The University is managing thesoil as a bulk PCB waste under 40 Code of Federal Regulation (CFR) 761.61. Thedrums are being processed under the University of Minnesota’s Resource Conservationand Recovery Act (RCRA) Part B permit until they are shipped to a permitted hazardouswaste disposal facility under Section 3004 of the RCRA regulations. These drums arescheduled for pickup during the week of July 13, 2015. We will submit documentation ofthe proper disposal of this material to MPCA as soon as it becomes available;

· Per the Approved Work Plan, bottom and sidewall confirmation samples were notcollected, as the proposed excavation bottom and sidewalls have been sufficientlycharacterized with the laboratory analytical data from the 0-2 foot interval in the previousinvestigations. PCB concentrations in all samples collected from the 2-4 foot interval hadPCB concentrations less than 10 mg/kg;

· The excavation areas were backfilled with clean fill material in 6-inch lifts andcompacted. To comply with the requirement in the ROD that no soils in the 0-10 inchinterval at the Site are greater than 1 mg/kg of PCBs, approximately 348 cubic yards(487 tons) of virgin sand from the Aggregate Industries’ pit on the UMore property weretransported to the Site, and a 1-foot layer of fill material was placed on the area outlinedin Figure 2. Additionally, 3 inches of top soil (382 tons or approximately 318 cubic yards)was placed on top of the sand and seeded to prevent erosion;

· A barrier of mulch and wood chips was placed on the concrete pad to prevent erosion ofthe cover material. Sand overlain by topsoil was graded away from the concrete areawith 12 inches of soil and 3 inches of top soil to provide for slope stability. The area wasseeded with a native plant mix (Minnesota Department of Transportation [MnDOT] Seed

UMP020803


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Mix 32-241 Native Construction) immediately following placement of the topsoil andwatered, as necessary, to allow grass to grow in the newly seeded area; and

· A parking barrier of logs was permanently placed on the northeast approach to limitaccess to the Site after the cover material has been placed. Existing orange snow fenceand signage were removed from the Site following completion of backfilling activities.

A photo log of excavation and fill activities is included in Appendix D. Field notes from removalaction activities are included in Appendix B.

5.0 Recommendation

In accordance with the ROD, PCB contaminated soil exceeding 10 mg/kg has been removedfrom the Site and the direct contact exposure pathway of PCB contaminated soil greater than 1mg/kg and less than 10 mg/kg has been eliminated with the placement of 15 inches of sand andsoil cover. Based on the results of previous investigations and remedial actions conducted atthe Site, the response actions are considered complete.

Thank you for the opportunity to submit this Response Action Report. If you have any additionalquestions or concerns on this report, please contact Bill Lazarz using the contact informationprovided below.

Sincerely,

Paul Raymaker, PG William LazarzGeologist Environmental Services Group Manager(651) 785-5618 (651) [email protected] [email protected]

UMP020804


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Tables

UMP020805

UMP020806

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Figures

UMP020808

Y:\Clients\UNIVERSITY_OF_MINNESOTA\Georges_Used_Equipment\140488\MapDocs\J140651FIG1SiteLocationMap.mxd UMP020809

Y:\Clients\UNIVERSITY_OF_MINNESOTA\Georges_Used_Equipment\140488\MapDocs\J140651FIG2SiteMap.mxd UMP020810


Appendix ALaboratory Reports

UMP020811

88 Empire DriveSt Paul, MN 55103Tel: 651-642-1150Fax: 651-642-1239

RE: Analytical Services

St. Paul, MN 55103

May 08, 2015

Work Order Number: 1501532

Bach Pham

Client Manager II

Bay West

[email protected]

Enclosed are the results of analyses for samples received by the laboratory on 04/28/15. If you have any questions concerningthis report, please feel free to contact me.

Results are not blank corrected unless noted within the report. Additionally, all QC results meet requirements unless noted.

All samples will be retained by Legend Technical Services, Inc., unless consumed in the analysis, at ambient conditions for 30days from the date of this report and then discarded unless other arrangements are made. All samples were received inacceptable condition unless otherwise noted.

All test results and QC meet requirements of the 2003 NELAC standard.

MDH (NELAP) Accreditation #027-123-295

Prepared by,LEGEND TECHNICAL SERVICES, INC

Mr. Bill Lazarz

5 Empire Drive

Legend Technical Services, Inc. The results in this report apply to the samples analyzed in accordance withthe chain of custody document. This analytical report must be reproduced inits entirety.

UMP020812


Project:

Project Number:

Project Manager:

Analytical Services

J140651-Georges Used Equipment

Mr. Bill LazarzSt. Paul, MN 55103 05/08/15Date Reported:

Bay West

Work Order #: 15015325 Empire Drive

Sample ID Laboratory ID Date Sampled

ANALYTICAL REPORT FOR SAMPLES

Date ReceivedMatrix

SS-61 (24'') 1501532-05 Soil 04/28/15 12:28 04/28/15 13:25

SS-62 (24'') 1501532-06 Soil 04/28/15 12:26 04/28/15 13:25

SS-63 (24'') 1501532-07 Soil 04/28/15 12:24 04/28/15 13:25

SS-64 (24'') 1501532-08 Soil 04/28/15 12:22 04/28/15 13:25

SS-67 (24'') 1501532-11 Soil 04/28/15 12:16 04/28/15 13:25

SS-68 (24'') 1501532-12 Soil 04/28/15 12:14 04/28/15 13:25

SS-69 (24'') 1501532-13 Soil 04/28/15 12:12 04/28/15 13:25

SS-70 (24'') 1501532-14 Soil 04/28/15 12:10 04/28/15 13:25

SS-71 (24'') 1501532-15 Soil 04/28/15 12:08 04/28/15 13:25

SS-72 (24'') 1501532-16 Soil 04/28/15 12:04 04/28/15 13:25

SS-73 (24'') 1501532-17 Soil 04/28/15 12:02 04/28/15 13:25

SS-74 (24'') 1501532-18 Soil 04/28/15 12:00 04/28/15 13:25

SS-BW72 (24'') 1501532-19 Soil 04/28/15 12:06 04/28/15 13:25

Shipping Container Information

Default Cooler Temperature (°C): 0.7

Received on ice: Yes Temperature blank was present Received on ice pack: NoReceived on melt water: No Ambient: No Acceptable (IH/ISO only): No

Custody seals: No

Case Narrative:

Legend Technical Services, Inc. The results in this report apply to the samples analyzed in accordance withthe chain of custody document. This analytical report must be reproducedin its entirety.

Page 2 of 12

UMP020813


Project:

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Project Manager:

Analytical Services



Bay West


PCB 8082ALegend Technical Services, Inc.

ResultAnalyte RL Units Dilution Batch Prepared Analyzed Method NotesMDL

SS-61 (24'') (1501532-05) Soil Sampled: 04/28/15 12:28 Received: 04/28/15 13:25

EPA 8082A04/30/15 05/02/15mg/kg dry B5D3003Aroclor 1016 0.22


Project:

Project Number:

Project Manager:

Analytical Services



Bay West





B5D3003 04/30/15 05/06/15 EPA 8082A84.0 60.9-138 %Surrogate: Tetrachloro-meta-xylene




Project:

Project Number:

Project Manager:

Analytical Services



Bay West





B5D3003 04/30/15 05/02/15mg/kg dryAroclor 1260 0.44 EPA 8082A2.0 0.022 2

" " 05/02/15 "104 65.3-143 %Surrogate: Decachlorobiphenyl

" " " "89.5 60.9-138 %Surrogate: Tetrachloro-meta-xylene




Project:

Project Number:

Project Manager:

Analytical Services



Bay West







Project:

Project Number:

Project Manager:

Analytical Services



Bay West


PERCENT SOLIDSLegend Technical Services, Inc.



B5D3011 04/30/15 04/30/15%% Solids % calculation89 1























SS-BW72 (24'') (1501532-19) Soil Sampled: 04/28/15 12:06 Received: 04/28/15 13:25



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UMP020818


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Analytical Services



Bay West


Result Units LevelSpike

ResultSource

%REC%RECLimits %RPD

%RPDLimit NotesAnalyte

PCB 8082A - Quality ControlLegend Technical Services, Inc.

RL MDL

Batch B5D3003 - EPA 3545 ASE Extraction

Blank (B5D3003-BLK1) Prepared: 04/30/15 Analyzed: 05/01/15

Aroclor 1016 mg/kg wet< 0.20 0.20 0.010

Aroclor 1221 mg/kg wet< 0.20 0.20 0.017

Aroclor 1232 mg/kg wet< 0.20 0.20 0.013

Aroclor 1242 mg/kg wet< 0.20 0.20 0.018

Aroclor 1248 mg/kg wet< 0.20 0.20 0.011

Aroclor 1254 mg/kg wet< 0.20 0.20 0.012

Aroclor 1260 mg/kg wet< 0.20 0.20 0.0097

mg/kg wet 0.0667 65.3-143Surrogate: Decachlorobiphenyl 88.00.0587

mg/kg wet 0.0667 60.9-138Surrogate: Tetrachloro-meta-xylene 78.50.0523

LCS (B5D3003-BS1) Prepared: 04/30/15 Analyzed: 05/01/15

Aroclor 1260 mg/kg wet 0.333 70-13091.60.305 0.20 0.0097



Matrix Spike (B5D3003-MS1) Prepared: 04/30/15 Analyzed: 05/06/15Source: 1501532-11

Aroclor 1260 mg/kg dry 0.370 M170-1301640.980 0.3740.22 0.011

mg/kg dry 0.0741 65.3-143Surrogate: Decachlorobiphenyl 88.00.0652

mg/kg dry 0.0741 60.9-138Surrogate: Tetrachloro-meta-xylene 88.50.0656

Matrix Spike Dup (B5D3003-MSD1) Prepared: 04/30/15 Analyzed: 05/06/15Source: 1501532-11

Aroclor 1260 mg/kg dry 0.370 R270-13095.9 29.30.729 0.3740.22 0.011 17.2




Page 8 of 12

UMP020819


Project:

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Analytical Services



Bay West



ResultSource

%REC%RECLimits %RPD


PERCENT SOLIDS - Quality ControlLegend Technical Services, Inc.

RL MDL

Batch B5D3011 - General Preparation

Duplicate (B5D3011-DUP1) Prepared & Analyzed: 04/30/15Source: 1501529-01

% Solids % 1.2382.0 81.0 20


% Solids % 0.0090.0 90.0 20


% Solids % 0.0089.0 89.0 20


Page 9 of 12

UMP020820


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Bay West


Notes and Definitions

R2 RPD/RSD exceeded the laboratory acceptance limit. See case narrative.

M1 Matrix spike recovery was high, the associated blank spike recovery was acceptable.

Sample results reported on a dry weight basis

Relative Percent DifferenceRPD

dry

Less than value listed<

Not applicable. The %RPD is not calculated from values less than the reporting limit.NA

MDL Method Detection Limit

RL Reporting Limit

LCS

MS

Laboratory Control Spike = Blank Spike (BS) = Laboratory Fortified Blank (LFB)

Matrix Spike = Laboratory Fortified Matrix (LFM)


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UMP020821



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UMP020822



Page 12 of 12

UMP020823



St. Paul, MN 55103

May 18, 2015


Kevyn Kalland

Client Manager I

Bay West

[email protected]

This is a revised report. The details of the revision are listed in the case narrative on the following page.





MDH (NELAC) Certification #027-123-295


Mr. Bill Lazarz

5 Empire Drive

REVISION


UMP020824


Project:

Project Number:

Project Manager:

Analytical Services



Bay West




Date ReceivedMatrix

SS-57 (10'') 1501523-01 Soil 04/27/15 15:00 04/27/15 16:50

SS-58 (10'') 1501523-02 Soil 04/27/15 15:02 04/27/15 16:50

SS-59 (10'') 1501523-03 Soil 04/27/15 15:04 04/27/15 16:50

SS-60 (10'') 1501523-04 Soil 04/27/15 15:06 04/27/15 16:50

SS-61 (10'') 1501523-05 Soil 04/27/15 15:08 04/27/15 16:50

SS-62 (10'') 1501523-06 Soil 04/27/15 15:10 04/27/15 16:50

SS-63 (10'') 1501523-07 Soil 04/27/15 15:12 04/27/15 16:50

SS-64 (10'') 1501523-08 Soil 04/27/15 15:14 04/27/15 16:50

SS-65 (10'') 1501523-09 Soil 04/27/15 15:16 04/27/15 16:50

SS-66 (10'') 1501523-10 Soil 04/27/15 15:18 04/27/15 16:50

SS-67 (10'') 1501523-11 Soil 04/27/15 15:20 04/27/15 16:50

SS-68 (10'') 1501523-12 Soil 04/27/15 15:22 04/27/15 16:50

SS-69 (10'') 1501523-13 Soil 04/27/15 15:24 04/27/15 16:50

SS-70 (10'') 1501523-14 Soil 04/27/15 15:26 04/27/15 16:50

SS-71 (10'') 1501523-15 Soil 04/27/15 15:28 04/27/15 16:50

SS-72 (10'') 1501523-16 Soil 04/27/15 15:30 04/27/15 16:50

SS-73 (10'') 1501523-17 Soil 04/27/15 15:32 04/27/15 16:50

SS-74 (10'') 1501523-18 Soil 04/27/15 15:34 04/27/15 16:50

SS-BW74 (10'') 1501523-19 Soil 04/27/15 15:36 04/27/15 16:50




Custody seals: No

Case Narrative:

MS/MSD %RPDs was outside laboratory limits for Aroclor 1260 in the batch B5E1201. The MS/MSD source sample wasSS-57 (10"). All target analytes were within limits in the LCS.

Per the client's request, this report was revised May 18, 2015 to include 8082A PCB analysis results for samples SS-57(10"), SS-58 (10"), and SS-66 (10").

This report supersedes the report dated May 11, 2015.


Page 2 of 15

UMP020825


Project:

Project Number:

Project Manager:

Analytical Services



Bay West





EPA 8082A05/12/15 05/14/15mg/kg dry B5E1201Aroclor 1016 0.22


Project:

Project Number:

Project Manager:

Analytical Services



Bay West





B5D2902 04/29/15 04/30/15 EPA 8082A88.5 60.9-138 %Surrogate: Tetrachloro-meta-xylene




Project:

Project Number:

Project Manager:

Analytical Services



Bay West






" " 05/01/15 "83.0 65.3-143 %Surrogate: Decachlorobiphenyl

" " " "80.0 60.9-138 %Surrogate: Tetrachloro-meta-xylene




Project:

Project Number:

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Analytical Services



Bay West






"" 05/01/15mg/kg dry "Aroclor 1254 0.23


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Analytical Services



Bay West







Project:

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Bay West

































Page 8 of 15

UMP020831


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Analytical Services



Bay West















Page 9 of 15

UMP020832


Project:

Project Number:

Project Manager:

Analytical Services



Bay West



ResultSource

%REC%RECLimits %RPD



RL MDL

Batch B5D2902 - EPA 3545 ASE Extraction

Blank (B5D2902-BLK1) Prepared: 04/29/15 Analyzed: 04/30/15

Aroclor 1016 mg/kg wet< 0.20 0.20 0.010

Aroclor 1221 mg/kg wet< 0.20 0.20 0.017

Aroclor 1232 mg/kg wet< 0.20 0.20 0.013

Aroclor 1242 mg/kg wet< 0.20 0.20 0.018

Aroclor 1248 mg/kg wet< 0.20 0.20 0.011

Aroclor 1254 mg/kg wet< 0.20 0.20 0.012

Aroclor 1260 mg/kg wet< 0.20 0.20 0.0097



LCS (B5D2902-BS1) Prepared: 04/29/15 Analyzed: 04/30/15

Aroclor 1260 mg/kg wet 0.333 70-13096.30.321 0.20 0.0097



Matrix Spike (B5D2902-MS1) Prepared: 04/29/15 Analyzed: 05/01/15Source: 1501523-06

Aroclor 1260 mg/kg dry 0.357 M370-130NR5.16 6.562.2 0.10



Matrix Spike Dup (B5D2902-MSD1) Prepared: 04/29/15 Analyzed: 05/01/15Source: 1501523-06

Aroclor 1260 mg/kg dry 0.358 M370-130NR 6.024.86 6.562.2 0.10 17.2



Batch B5E1201 - EPA 3550B

Blank (B5E1201-BLK1) Prepared: 05/12/15 Analyzed: 05/13/15

Aroclor 1016 mg/kg wet< 0.20 0.20 0.010

Aroclor 1221 mg/kg wet< 0.20 0.20 0.017

Aroclor 1232 mg/kg wet< 0.20 0.20 0.013

Aroclor 1242 mg/kg wet< 0.20 0.20 0.018

Aroclor 1248 mg/kg wet< 0.20 0.20 0.011

Aroclor 1254 mg/kg wet< 0.20 0.20 0.012

Aroclor 1260 mg/kg wet< 0.20 0.20 0.0097



LCS (B5E1201-BS1) Prepared: 05/12/15 Analyzed: 05/13/15

Aroclor 1260 mg/kg wet 0.333 70-13095.10.317 0.20 0.0097




Page 10 of 15

UMP020833


Project:

Project Number:

Project Manager:

Analytical Services



Bay West



ResultSource

%REC%RECLimits %RPD



RL MDL

Batch B5E1201 - EPA 3550B

Matrix Spike (B5E1201-MS1) Prepared: 05/12/15 Analyzed: 05/15/15Source: 1501523-01

Aroclor 1260 mg/kg dry 0.358 70-13079.00.808 0.5240.22 0.010

mg/kg dry 0.0717 65.3-143Surrogate: Decachlorobiphenyl 1010.0724


Matrix Spike Dup (B5E1201-MSD1) Prepared: 05/12/15 Analyzed: 05/15/15Source: 1501523-01

Aroclor 1260 mg/kg dry 0.358 M2, R270-13041.3 18.30.672 0.5240.22 0.010 17.2

mg/kg dry 0.0717 65.3-143Surrogate: Decachlorobiphenyl 1030.0738



Page 11 of 15

UMP020834


Project:

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Project Manager:

Analytical Services



Bay West



ResultSource

%REC%RECLimits %RPD



RL MDL

Batch B5D2911 - General Preparation


% Solids % 5.4190.0 95.0 20


% Solids % 1.1488.0 87.0 20


% Solids % 1.1389.0 88.0 20


Page 12 of 15

UMP020835


Project:

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Analytical Services



Bay West



R2 RPD/RSD exceeded the laboratory acceptance limit. See case narrative.

M3 The spike recovery value is unusable since the analyte concentration in the sample is disproportionate to the spike level. The associatedblank spike recovery was acceptable.

M2 Matrix spike recovery was low, the associated blank spike recovery was acceptable.



dry




RL Reporting Limit

LCS

MS




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UMP020836



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UMP020837



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UMP020838



St. Paul, MN 55103

May 28, 2015


Kevyn Kalland

Client Manager I

Bay West

[email protected]





MDH (NELAP) Accreditation #027-123-295


Mr. Bill Lazarz

5 Empire Drive


UMP020839


Project:

Project Number:

Project Manager:

Analytical Services



Bay West




Date ReceivedMatrix

SS-75 (10'') 1501837-01 Soil 05/15/15 12:40 05/15/15 14:05

SS-75 (24'') 1501837-02 Soil 05/15/15 12:45 05/15/15 14:05

SS-76 (10'') 1501837-03 Soil 05/15/15 12:55 05/15/15 14:05

SS-76 (24'') 1501837-04 Soil 05/15/15 13:00 05/15/15 14:05




Custody seals: No

Case Narrative:


Page 2 of 9

UMP020840


Project:

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Analytical Services



Bay West





EPA 8082A05/19/15 05/24/15mg/kg dry B5E1901Aroclor 1016 0.23


Project:

Project Number:

Project Manager:

Analytical Services



Bay West





B5E1901 05/19/15 05/24/15 EPA 8082A80.5 60.9-138 %Surrogate: Tetrachloro-meta-xylene


Page 4 of 9

UMP020842


Project:

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Analytical Services



Bay West





B5E2207 05/22/15 05/22/15%% Solids % calculation87 1








Page 5 of 9

UMP020843


Project:

Project Number:

Project Manager:

Analytical Services



Bay West



ResultSource

%REC%RECLimits %RPD



RL MDL

Batch B5E1901 - EPA 3545 ASE Extraction

Blank (B5E1901-BLK1) Prepared: 05/19/15 Analyzed: 05/24/15

Aroclor 1016 mg/kg wet< 0.20 0.20 0.010

Aroclor 1221 mg/kg wet< 0.20 0.20 0.017

Aroclor 1232 mg/kg wet< 0.20 0.20 0.013

Aroclor 1242 mg/kg wet< 0.20 0.20 0.018

Aroclor 1248 mg/kg wet< 0.20 0.20 0.011

Aroclor 1254 mg/kg wet< 0.20 0.20 0.012

Aroclor 1260 mg/kg wet< 0.20 0.20 0.0097



LCS (B5E1901-BS1) Prepared: 05/19/15 Analyzed: 05/24/15

Aroclor 1260 mg/kg wet 0.333 70-1301070.357 0.20 0.0097



Matrix Spike (B5E1901-MS1) Prepared: 05/19/15 Analyzed: 05/24/15Source: 1501837-04

Aroclor 1260 mg/kg dry 0.407 70-1301120.556


Project:

Project Number:

Project Manager:

Analytical Services



Bay West



ResultSource

%REC%RECLimits %RPD



RL MDL

Batch B5E2207 - General Preparation

Duplicate (B5E2207-DUP1) Prepared & Analyzed: 05/22/15Source: 1501862-04

% Solids % 6.9974.0 69.0 20

Duplicate (B5E2207-DUP2) Prepared & Analyzed: 05/22/15Source: 1501906-01

% Solids % 4.2070.0 73.0 20


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Project:

Project Number:

Project Manager:

Analytical Services



Bay West





dry




RL Reporting Limit

LCS

MS




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Appendix BField Notes

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Bay West LLC 651/291-04565 Empire Drive FAX 651/291-0099St. Paul, Minnesota 55103-1867 1-800-279-0456

DAILY DIARYTo be completed by Crew Leader _1___ of __1___

Job NameUMore/Georges Used Equipment

Job No.J140651

Date6/15-6/19

Project ManagerBill L

Bay West CrewCraig, Preston

Personnel on Site (Client, Visitors, Bay West staff other than listed above)

Detailed description of work performed:

6/15/15

Loaded up necessary equipment and went to site,

Went through Health and Safety plan and tailgate meeting.

Checked out equipment to make sure there was not any major damage.

Removed brush and debris that was on grid SS-51 and SS-67 samples. Located the grids and marked them out.

Started digging soil to stockpile for load out the following day.

6/16/15

Health and safety tail gate meeting completed.

First truck showed up with a load of sand, placed it on the area that will not be excavated. Two additional trucks

showed up and they were both loaded with the SS-51 and SS-67 grid area. Trucks were given a manifest to go

to Vonco in Becker, MN.

Began to load the SS-51 and SS-62 into drums based on the map grids. 12 drums were loaded, spoke to PM

that the grids still need some additional soil to be removed, will bring additional drums the following day.

First driver continued to run sand from the Umore pit, and two additional trucks began to run loads. Brought in 14

end dumps with sand. Then began to stock pile black dirt from the same pit, a total of 13 loads was brought in.

Began to place three inches of black dirt on the west side of the previously excavated area in between loads.

All orange fencing and stakes were removed from the site and wrapped up.

Total loads were:

Sand=14

Black Dirt=13

Due to the potential for severe weather overnight and into the morning poly was used to cover the black dirt as it

would turn to mud if not covered and be difficult to do finishing work.

6/17/15

Picked up grass seed from Ramy turf in the morning, MNDOT native construction 32-241. Arrived on-site and

held health and safety tail gate meeting.

Uncovered the black dirt pile and began to run sand. Checked the boundaries with GPS to verify. Began to build

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our 12” sand cap, also filled in the excavated areas and include 12” of sand on-top of that. 4 more drums were

needed to excavate the remaining soil in SS-51 and SS-62. Drums were all moved onto the pad and labeled with

PCB and Hazardous waste labels. Drums were then covered with poly. Additional black dirt was also brought in.

total loads included:

Sand=6

Black Dirt=4

The black dirt was covered in case there was additional rain overnight.

6/18/15

Went to look for “waddles” for erosion control in the morning, bought a roll of erosion control matting for the peak.

Started getting sand right away in the morning. Arrived on-site and held health and safety tail gate meeting.

Janet arrived on-site and discussed the parking barrier and erosion control onto the pad. We discussed using the

trees cut down in the beginning of the site as a parking barrier and using the mulch to help control erosion onto

the concrete pad, she agreed on the plan, also discussed this with the PM.

Continued to get the area shaped and to final grade. Seeded the bermed areas.

6/19/14

Arrived on-site and had health and safety tail gate meeting. Completed seeding the entire excavated area and

used dozer to track the seed in, birds had been eating the seed. Used a one roll of erosion control matting

(8’x112.5). Covered the front entrance to the site and also the slope that was on the NE side of concrete pad.

Used the mulch to create an erosion control barrier to help in the same area. Equipment was fueled up and site

was buttoned up. Contacted PM so equipment could be called for pick up.

Craig mobilized to a spill call and Preston went back to the shop to unload equipment and toolwatch.

Waste Generated:

Change in Conditions (if any):

Sample Summary:

Samples Taken: r Yes r No No. of Samples COC #:

Sample Destination:

Size and Type of Sample:

Signature Date 6/23/15

PROJECT MANAGER/FILE DOCS#9287

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Appendix CWeigh Tickets

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Appendix DPhoto Log

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july 10, 2015 ed olson mpca - university of minnesota...july 10, 2015 ed olson mpca 520 lafayette...

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