phase ii-c environmental site investigation report

Phase II-C Environmental Site Investigation Report

Former Farmers Union Co-op Site, VP30860

23345 Main Street

Hampton, Minnesota

Prepared for

Dakota County

November 2014

4700 West 77th Street

Minneapolis, MN 55435-4803

Phone: 952.832.2600

Fax: 952.832.2601



23345 Main Street

Hampton, Minnesota

Prepared for

Dakota County

November 2014

\\barr.com\projects\Mpls\23 MN\19\23191225 Main St Hampton Envrmntl Invst\WorkFiles\Investigation\Phase IIC Invest Report\Hampton Phase II-

C Investigation Report_2014 11 06.docx

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23345 Main Street

Hampton, Minnesota

November 2014

Contents

1.0 Introduction ........................................................................................................................................................................... 1

1.1 Objectives .......................................................................................................................................................................... 1

2.0 Background ............................................................................................................................................................................ 2

2.1 Previous Investigations ................................................................................................................................................. 2

2.2 Property History and Usage ....................................................................................................................................... 2

2.3 Site Geology and Hydrogeology .............................................................................................................................. 2

2.4 Historic Releases ............................................................................................................................................................. 2

2.5 Historic Groundwater Data ......................................................................................................................................... 3

2.6 Historic Soil Gas Data .................................................................................................................................................... 3

3.0 Phase II-C Investigation ..................................................................................................................................................... 5

3.1 Investigation Activities .................................................................................................................................................. 5

3.2 Soil Characterization, Screening, and Sampling ................................................................................................. 5

3.3 Groundwater Sampling ................................................................................................................................................ 6

3.4 Soil Gas Sampling ........................................................................................................................................................... 6

3.5 Land Survey ....................................................................................................................................................................... 7

3.6 Results ................................................................................................................................................................................. 7

3.6.1 Soil ................................................................................................................................................................................... 7

3.6.2 Groundwater ............................................................................................................................................................... 7

3.6.3 Soil Gas .......................................................................................................................................................................... 7

4.0 Phase II-C Investigation Discussion .............................................................................................................................. 8

5.0 MPCA Investigation ..........................................................................................................................................................10

6.0 Recommendations ............................................................................................................................................................11

7.0 References ............................................................................................................................................................................12

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List of Tables

Table 1 Soil Analytical Data Summary

Table 2 Groundwater Analytical Data Summary

Table 3 Soil Gas Analytical Data Summary

List of Figures

Figure 1 Site Location

Figure 2 Sample Locations

Figure 3 Geologic Cross Section A-A’

Figure 4 Geologic Cross Section B-B’

List of Appendices

Appendix A Select Previous Investigation Results

Appendix B Soil Boring Field Logs

Appendix C Laboratory Analytical Reports

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Certifications

I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Engineer under the laws of the State of Minnesota

November 2014

Julie Sullivan

PE #: 42811

Date

I hereby certify that this plan, specification, or report was prepared by me or under my direct supervision and that I am a duly Licensed Professional Geologist under the laws of the State of Minnesota

November 2014

Tonia O’Brien

PG #: 50115

Date

1

1.0 Introduction

This report documents the Phase II-C Environmental Site Investigation (Phase II-C Investigation) that was

completed at the Former Farmers Union Co-op Site (Site), VP30860, 23345 Main Street and surrounding

areas in Hampton, Minnesota. The Phase II-C Investigation was conducted to further evaluate the soil

vapor and groundwater impacts. The location of the Site is shown on Figure 1.

The Phase II-C Investigation was completed in general accordance with the Minnesota Pollution Control

Agency (MPCA)-approved Phase II-C Environmental Site Investigation Work Plan (Work Plan), prepared by

Barr Engineering Co., dated February 21, 2014 (Barr, 2014).

Investigation activities were coordinated with the City of Hampton by Barr Engineering Co. and Dakota

County Environmental Resources Department.

1.1 Objectives

The objectives of this investigation include the following (presented in order of importance):

1. Verifying the safety of residents and building occupants with respect to potential soil vapor

intrusion

2. Defining the magnitude and extent of the groundwater plume, which may also assist with

bounding the vapor intrusion area and identifying potential off-site sources

3. Identifying potential off-site sources

4. Facilitating future redevelopment of the site

Based on these objectives, the Phase II-C Investigation focused on assessing the soil gas and groundwater

concentrations in close proximity to the occupied properties east and west of the Site and the

groundwater conditions to the north and east of the Site.

The Phase II-C Investigation, in conjunction with the existing data, was designed to evaluate the potential

presence of contamination.

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2.0 Background

2.1 Previous Investigations

In 2011, a Phase I Environmental Site Assessment was completed and Recognized Environmental

Conditions (RECs) associated with the Site were identified. In January and June 2012, Phase II site

investigations were completed for the western and eastern parcels, respectively. Previous investigation

locations are shown on Figure 2.

Soil, soil gas, and groundwater results indicated a release or releases had occurred at or near the Site;

however, the horizontal extent of impacted soil gas was undefined.

2.2 Property History and Usage

The Site was previously occupied by the Farmers Union Co-op, specifically two grain elevators used for

storing and processing grain, corn, and beans; other site uses include coal storage, gas station,

convenience/hardware store, train depot, and a furniture manufacturing business, O’Brien Furniture. A

north-south trending railroad line was present on the western portion of the Site, which was removed

after 1990. The Site was also reportedly used to blend fertilizer. Currently, the Site is a gravel parking lot

and no structures remain.

2.3 Site Geology and Hydrogeology

The Site is located in the Vermillion River watershed and is adjacent to a wetland to the southwest. The

uppermost deposits at the Site and in the adjacent right-of-way consist of fill ranging from 2.5 to 8 feet in

thickness; the thickest area of fill is located beneath Main Street as shown on geologic cross-sections

included as Figures 3 and 4. The uppermost native materials consist of silt- and clay-rich deposits with

discontinuous lenses of sand. Near soil boring 2_SB_4, an apparent cavity of fill was identified and is

shown on Figure 4. The uppermost bedrock at the Site consists of Prairie du Chien Group and is

estimated at approximately 60 feet below ground surface (bgs).

In 1990, an investigation was completed south of the Site for Local Oil Company (Local Oil) and

groundwater measurements indicated a slightly north of west groundwater flow direction. In January

2012, groundwater was not observed on the Site, and in June 2012, estimated depth to groundwater on

the Site ranged from 2.5 to 7 feet bgs. These seasonal variations coupled with variable fill thickness may

affect seasonal groundwater flow paths.

Two municipal water wells, located east of the Site, supply drinking water to the City of Hampton. As part

of a recent well survey, one unsealed and unused city well and 26 active, non-municipal water wells were

identified within a one-mile radius of the Site.

2.4 Historic Releases

Two 4,000-gallon capacity gasoline underground storage tanks (USTs) and one 560-gallon capacity used-

or waste-oil UST were previously located on the Site. In 1998, a gasoline release (Leak ID# 12304) was

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reported to the Minnesota Pollution Control Agency (MPCA) and Leak site closure was granted in 1999

with contaminated soils and groundwater left in place. The USTs were reportedly removed from the Site;

however, the date(s) of removal are unknown.

Between 2000 and 2006, pesticides, fertilizer, and anhydrous ammonia releases were also reported and

received closure. Additionally, a number of adjacent sites were identified as underground/aboveground

storage tanks (UAST) and leaking underground storage tank (LUST) sites. Most notably, Local Oil, located

directly south of the Site, has two reported releases. One of these was an estimated 1,900-gallon gasoline

release from an aboveground storage tank (AST) that reportedly infiltrated to the water table. Several

remedial methods were used to recover the released gasoline. The site was granted closure in 1993;

however, the volume of product recovered was not reported. Contaminated soils remain and the

presence of offsite contamination is unknown.

2.5 Historic Groundwater Data

One groundwater sample (2_TW_5) was previously collected and analyzed for Resource Conservation and

Recovery Act (RCRA) metals and arsenic, chromium, and lead exceeded the EPA’s Maximum Contaminant

Levels (MCLs). Six of nine dissolved arsenic groundwater samples exceeded the EPA’s MCL with the

highest concentrations located in the northern portion of the Site.

Five volatile organic compounds (VOCs)—1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, benzene,

ethylbenzene, and total xylenes—exceeded the Minnesota Department of Health (MDH) Health Risk Limits

(HRLs) near the building footprint of the former furniture manufacturing business located on the northern

portion of the Site.

Gasoline range organics (GRO) was detected in two groundwater samples (2_TW_1 and 2_TW_5P)

collected from the southern and northern portions of the Site with concentrations of 436 micrograms per

liter (µg/L) and 5,950 µg/L, respectively.

Pesticides constituents, including aldrin, dieldrin, heptachlor epoxide, and toxaphene, exceeded the HRLs

at five locations (2_TW_1, 2_TW_5P, 2_TW_6, 2_TW_7B, and 2_TW_12); however, with the exception of

dieldrin, the reportable detection limits exceeded the HRLs. Two PCB samples (2_TW_1 and 2_TW_7B)

were collected and the concentrations were below the reportable detection limit.

Polycyclic aromatic hydrocarbon (PAH) constituents were reported in seven of eight samples. No

constituents with established criteria reported exceedances.

2.6 Historic Soil Gas Data

In January 2012, two soil gas samples were collected from the western parcel and analyzed for VOCs by

EPA method TO-15. Although several detections exceeded the MPCA’s residential and industrial vapor

intrusion screening values (ISVs), all constituents were less than ten times (10X) the ISVs for residential

and industrial criteria (Stantec, April 25, 2012).

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In January and June 2012, nine soil gas samples were collected from the eastern parcel and analyzed for

VOCs by EPA method TO-15 (Stantec, April 18, 2013). Four or more VOCs were detected in soil gas at

concentrations exceeding the ISVs at each location (including constituents with the reportable detection

limits greater than the ISVs). High reporting limits may suggest either insufficient sample volumes were

collected or the laboratory performed sample dilutions.

Appendix A contains select results from the 2012 investigations.

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3.0 Phase II-C Investigation

The following sections describe the methods used to collect soil, groundwater, and soil gas samples and

summarize the results of the investigation.

3.1 Investigation Activities

Investigative drilling activities were conducted on April 10 and 11, 2014, which were preceded by a utility

meet on April 9, 2014. Sample locations are shown on Figure 2.

Matrix Environmental, LLC, contracted to Barr, advanced borings at eight locations using a direct-push

drill rig. Soil borings were advanced first, followed by construction of temporary wells, and soil gas

sampling. Prior to the advancement of the borings for sample collection, Matrix conducted a public utility

locate through Gopher State One Call and private utilities in the work area were located by a private

locator.

Multiple borings were advanced at each location to collect samples of different media. Therefore, the

name of each boring on Figure 2 indicates the boring number (e.g. SB-6), preceded by an abbreviation

referencing the use of that boring as follows:

SB indicates a boring used for soil characterization, field screening, and sampling

TW indicates a temporary well used for groundwater sampling

VP indicates a boring used for soil gas (vapor point) sampling

3.2 Soil Characterization, Screening, and Sampling

Soil characterization, screening, and sampling were completed by advancing soil borings via direct push

methods. Soil was collected continuously in new disposable acetate sample liners to document soil

characteristics and to field screen for evidence of contamination (i.e. odor, discoloration sheen, or other

evidence of potential soil impacts) and for organic vapors using an 11.7 eV photoionization detector (PID).

Soil characteristics (in general accordance with ASTM D-2488, Standard Practice for Description and

Identification of Soils (Visual/Manual Method)) and PID measurements are documented in soil boring field

logs in Appendix B. Eight soil borings, SB-1 through SB-8, were completed to maximum depths of 12 to

20 feet bgs.

Based on field observations and screening (e.g. stained soil, petroleum-like odor, sheen, and elevated

organic vapor reading of 197 parts per million (ppm)), two soil samples were submitted for chemical

analysis based on field observations. The soil samples were submitted to Legend Technical Services

(Legend) in St. Paul, Minnesota and analyzed for VOCs using EPA Method 8260. Laboratory reports are

included in Appendix C. Soil samples were collected in accordance with Barr’s Standard Operating

Procedure (SOP) for Direct-Push Soil and Groundwater Sample Collection included in Attachment C of the

Work Plan (Barr, 2014).

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Borings were abandoned with bentonite in accordance with the State of Minnesota and Dakota County

requirements. Each soil boring was sealed prior to drilling the associated soil gas boring.

3.3 Groundwater Sampling

Groundwater was sampled from temporary wells and direct push borings. Four temporary monitoring

wells, TW-1, TW-5, TW-6, and TW-8, were constructed in four of the eight soil boring locations to record

water level elevations and collect water samples; an additional groundwater sample was collected from

SB-2, but no temporary well was installed at this location. The temporary wells were constructed of 1-inch

diameter polyvinyl chloride (PVC) riser and well screen.

Temporary wells were allowed to equilibrate overnight before water level measurements and samples

were collected.

Depending on the volume of water available in the temporary well, groundwater was purged through new

disposable polyethylene and silicone tubing connected to a peristaltic pump. For the volatile organic

carbon samples, groundwater was collected by pausing the peristaltic pump, removing the polyethylene

tubing from the temporary well and filling laboratory supplied vials from the bottom of the polyethylene

tubing. Due to a limited volume of groundwater in some of the temporary wells, VOC sampling was

prioritized over the RCRA metals sampling.

Groundwater samples were collected in laboratory-supplied containers from four temporary wells and one

soil boring, for a total of five groundwater samples, in accordance with Barr’s Standard Operating

Procedure (SOP) for Direct-Push Soil and Groundwater Sample Collection included in Attachment C of the

Work Plan (Barr, 2014). Groundwater was not encountered in the other three borings, SB-3, SB-4, and

SB-7. Therefore, no groundwater samples were collected from these locations. Groundwater samples

were submitted to Legend and analyzed for VOCs using EPA Method 8260B and dissolved RCRA metals

using EPA method 6010/6020, as possible, with respect to available groundwater volume.

3.4 Soil Gas Sampling

Temporary soil gas monitoring points were installed at the sample locations for the purpose of collecting

a soil gas sample for laboratory analysis. Soil gas sample depths were based on depth to groundwater,

field screening results, and soil/fill classification observed during soil boring installation, targeting the fill

materials. The sample depths ranged between 3.5 to 8 feet bgs.

The soil gas sample was not collected from the same boring used for soil sampling to minimize the risk of

leaking or short-circuiting of ambient air originating from the ground surface.

The temporary soil gas monitoring point was constructed and sampled in accordance with Barr’s Standard

Operating Procedure (SOP) for Air Sample Collection from a Soil Gas Implant included in Attachment A of

the Work Plan (Barr, 2014), using the Post-Run Tubing (PRT) System fabricated by Geoprobe Systems and

advanced by direct-push equipment. The drill rod was sealed at the ground surface with hydrated

bentonite prior to collecting a soil gas sample. The soil gas sample was collected with the direct-push

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equipment using new disposable polytetrafluoroethylene tubing connected to stainless steel Swagelok

fittings, t-fittings, valves and a 1 liter summa canister at the ground surface. The soil gas monitoring point

was advanced to depths approximately two to four feet above the water table at each location, where

possible. Because of site conditions (unsaturated soil depth limitations) VP-1 and VP-8 were collected

approximately 0.5 feet above the observed water level in their associated soil borings, SB-1 and SB-8,

respectively. Initial and final vacuum measurements were recorded for the summa canister used to collect

the soil gas sample. The soil gas monitoring point was purged by removing 2.5 tubing volumes of soil gas

with a disposable syringe. The laboratory-prepared Summa canister was filled with soil gas at a rate of less

than 200 milliliters per minute (ml/min). After the soil gas sample was collected, the downhole tools were

removed and the annular space was sealed with grout in accordance with State of Minnesota and Dakota

County requirements.

The eight soil gas samples, VP-1 through VP-8, were submitted to Legend and analyzed for the MPCA

Minnesota Soil Gas VOC List using Method TO-15.

3.5 Land Survey

A survey using standard land surveying methods was completed to document the ground surface

elevation at each sample location. The temporary wells were surveyed to determine groundwater

elevation.

3.6 Results

This section summarizes the results of the investigation. Figure 2 shows the sample locations. Figures 3

and 4 are geologic cross-sections of the area, which include current and previous sample locations.

3.6.1 Soil

Two soil samples, SB-2 at 8 to 9 feet bgs and SB-4 at 5 to 5.5 feet bgs, were collected based on field

indications of potential impacts and analyzed for VOCs. No VOCs were detected above their method

detection limits. Table 1 summarizes the results. The sample locations are shown on Figure 2.

3.6.2 Groundwater

Five groundwater samples were collected and analyzed for VOCs and in three samples for dissolved 8

RCRA metals. Acetone, methyl ethyl ketone (MEK), and barium were detected above their method

detection limits. Table 2 summarizes the results. The sample locations are shown on Figure 2.

3.6.3 Soil Gas

Eight soil gas samples were collected and analyzed for VOCs. Numerous VOCs were detected in the soil

samples, five VOCs—1,2,4-trimethylbenzene (1,2,4-TMB), 1,3,5-TMB, 1,3-butadiene, benzene, and

tetrachloroethylene (PCE)—exceeded their ISVs and of these, two—1,3-butadiene and PCE —exceeded

10X the ISVs. Table 3 summarizes the results. The sample locations are shown on Figure 2.

Laboratory reports are included in Appendix C.

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4.0 Phase II-C Investigation Discussion

Based on the investigation objectives, this investigation focused on assessing the soil gas and

groundwater concentrations in close proximity to the occupied properties east and west of the Site and

the groundwater conditions to the north and east of the site.

This investigation, in conjunction with the existing data, was designed to evaluate the potential presence

of contamination associated with historic uses on the Site and adjacent properties. Based on these data,

the consistent presence of VOCs in the right-of-way soil gas and groundwater samples has not been

confirmed.

In general, the results of the Phase II-C investigation indicate that VOCs were not detected in the

groundwater above the method detection levels, with the exception of two VOCs (acetone and MEK) in

one temporary well location, and VOCs detected in the soil vapor were generally below their applicable

ISV, with the exception of one VOC (1,3-butadiene). Following are comparisons between the Phase II-C

Investigation results and the 2012 investigations.

Trimethylbenzene was detected in soil gas samples in 2012 and 2014.

Trichloroethylene (TCE) in soil gas was detected in multiple sample locations in 2012; at one

location, the concentration was more than 10X the industrial ISV. In 2014, TCE concentrations in

the soil gas were below the method detection limits.

PCE in soil gas was detected in multiple sample locations in 2014. In 2012, PCE was detected in

one soil gas sample.

Soil gas samples from April 2014 were generally collected from deeper depth intervals than in

2012.

Groundwater levels were variable with respect to the different investigations.

o April 2014 investigation – Groundwater levels ranged from approximately 3.5 feet to

19 feet bgs, which included an observation of perched water at one location.

o June 2012 investigation – The depth to groundwater was 2.5 feet bgs to more than an

estimated 10 feet bgs (Stantec, 2013).

o January 2012 investigation – Groundwater was only encountered at one of five locations,

at a depth estimated between 7 and 12 feet bgs (Stantec, 2013).

Groundwater levels are likely being influenced by seasonal fluctuations and the presence of

infrastructure, including pavement and underlying geotextile.

Additionally, based on the shallow water table conditions, the ground conditions are likely impacting the

investigation results for the different media: soil, groundwater, and soil gas. During this investigation

(April 2014), a frost (frozen soil) layer was observed in two soil borings (SB-1 and SB-6), located on the Site

to the southwest and off the Site to the east of the parking lot, and was absent at the remaining soil

boring locations. The presence and absence of frost indicate that increased ambient air temperatures

allowed for some portions of the upper soil horizon to begin thawing and snow cover to melt and

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infiltrate into the underlying soil and groundwater. Those conditions may have influenced the results

observed during this investigation.

There are also limitations of the previous investigation results. Specifically, some of the detection limits

from the 2012 soil gas investigation data are greater than the MPCA risk screening levels. For example,

1,3 butadiene was detected in seven of the eight soil gas samples collected in April 2014, at documented

levels greater than 10X the residential ISV; however, the detection limit for all nine samples collected in

2012 was greater than the residential ISV and in three of those nine samples greater than 10X the

residential ISV, the industrial ISV, and 10X the industrial ISV. A similarly elevated detection limit was also

documented for PCE in soil gas in 2012.

The soil gas investigation results indicate that currently there is no pattern established that vapors from

VOCs in the subsurface are consistently present. This lack of pattern is based on measuring soil gas

concentrations less than 10X the residential ISVs in April 2014 (with the exception of 1,3-butadiene and

PCE) and detections greater than 10X residential and industrial ISVs in 2012. The soil gas concentrations

of 1,3-butadiene documented during the Phase II-C Investigation were greater than 10x the residential

ISV at all locations, with the exception of sample location VP-1. With regards to 1,3-butadiene, it is

possible that the detections of that compound may have been impacted by sampling or laboratory

methods, which prompts question as to the level of those 1,3-butadiene concentrations.

An off-site source of the observed soil gas impacts was not identified by the eight borings and sampling

completed in April 2014. There were field observations of potential petroleum-related impacts in soil

boring SB-2 (i.e. stained soil, petroleum-like odor, and elevated organic vapor reading of 197 ppm) and a

sheen observed in soil boring SB-4; however, the laboratory analytical data did not detect VOC impacts to

soil. This could be a result of limited impacts in the soil column that were not continuous between the

grab sample that was collected for field screening and the discrete sample collected for the VOC

laboratory analyses.

Additionally, VOCs were not detected in four of the five groundwater samples collected in April 2014. At

groundwater sample location TW-5, two VOCs—acetone and MEK—were detected. Acetone and MEK are

often observed as laboratory contaminants.

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5.0 MPCA Investigation

In June 2014, on behalf of the MPCA, Bay West completed an investigation of soil, groundwater, and soil

gas in the area of the Site related to MPCA Leak #18939 (Bay West, 2014). Four soil gas samples were

collected and analyzed as part of that investigation. Three of the four soil gas samples were collected

near existing buildings. The soil gas sample results were reviewed and evaluated in conjunction with the

data presented in this report and previous investigation reports to assist in determining further actions.

The MPCA investigation documented 1,2-dichloroethane in one soil gas sample at concentrations greater

than 100X the residential and 100X the industrial ISVs and the vinyl chloride concentration was more than

100X the residential ISV in that sample. Hexachloro-1,3-butadiene was also detected in select soil gas

samples at concentrations greater than 10X the residential and 10X the industrial ISVs. Additionally,

1,1,2,2-tetrachloroethane, naphthalene, and TCE concentrations were greater than the residential and

industrial ISVs.

The investigation also included soil and groundwater sampling. The soil and groundwater samples were

analyzed, evaluated, and tabulated for benzene, toluene, ethyl benzene, and total xylenes (BETX); methyl

tertiary butyl ether (MTBE), gasoline range organics (GRO), and diesel range organics (DRO). Neither BETX

nor MTBE were detected in any of the soil or groundwater samples. GRO and DRO were detected in some

of the soil samples and the majority of the groundwater samples. Other VOCs (e.g., chlorinated VOCs)

were analyzed for the soil and groundwater samples, but those results were not tabulated, evaluated, or

discussed in the report.

Appendix A contains select results from the MPCA investigation.

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6.0 Recommendations

Based on the results of the Phase II-C Investigation, previous investigations, and the MPCA investigation, a

specific source of contamination has not been identified despite the historic presence of numerous

potential sources. Based on these soil gas results, together with the results from other investigations,

there is potential risk to human health and the environment with respect to soil gas. MPCA guidance

(MPCA, 2010) suggests that soil gas concentrations greater than 100X ISVs require completion of a

building survey and sub-slab vapor sampling.

Therefore, it is recommended that the Site be referred to MPCA Site Assessment for additional

investigation and evaluation.

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7.0 References

Barr Engineering Co., February 21, 2014. Phase II-C Environmental Site Investigation Work Plan, Former

Farmers Union Co-op Site, VP30860, 23345 Main Street, Hampton, Minnesota.

Bay West, August 2014. Investigation Report Form, L#18939, Hampton Utility Project.

MPCA, August 2010. Vapor Intrusion Technical Support Document, Remediation Division, Minnesota

Pollution Control Agency.

Stantec Consulting Services Inc., April 25, 2012. Phase II Environmental Site Assessment, Former O’Brien

Furniture Property (Site 2A), Hampton, Minnesota.

Stantec Consulting Services Inc., April 18, 2013. Phase II Environmental Site Assessment, Former Farmers

Union Co-op Property (Site 2), 23345 Main Street, Hampton, Minnesota.

Tables

Table 1Soil Analytical Data Summary

Phase II-C Environmental Site InvestigationFormer Farmers Union Co-Op Site

Hampton, MN

Location SB-2 SB-4Date 4/10/2014 4/11/2014

Depth 8 - 9 ft 5 - 5.5 ftSample Type N N

ParameterGeneral Parameters

Solids, percent 86 % 88 %VOCs

1,1,1,2-Tetrachloroethane < 0.11 mg/kg < 0.28 mg/kg1,1,1-Trichloroethane < 0.11 mg/kg < 0.28 mg/kg1,1,2,2-Tetrachloroethane < 0.11 mg/kg < 0.28 mg/kg1,1,2-Trichloroethane < 0.11 mg/kg < 0.28 mg/kg1,1-Dichloro-1-propene < 0.11 mg/kg < 0.28 mg/kg1,1-Dichloroethane < 0.11 mg/kg < 0.28 mg/kg1,1-Dichloroethylene < 0.11 mg/kg < 0.28 mg/kg1,2,3-Trichlorobenzene < 0.22 mg/kg < 0.57 mg/kg1,2,3-Trichloropropane < 0.11 mg/kg < 0.28 mg/kg1,2,4-Trichlorobenzene < 0.22 mg/kg < 0.57 mg/kg1,2,4-Trimethylbenzene < 0.11 mg/kg < 0.28 mg/kg1,2-Dibromo-3-chloropropane < 0.22 mg/kg < 0.57 mg/kg1,2-Dibromoethane < 0.11 mg/kg < 0.28 mg/kg1,2-Dichlorobenzene < 0.11 mg/kg < 0.28 mg/kg1,2-Dichloroethane < 0.11 mg/kg < 0.28 mg/kg1,2-Dichloroethylene, cis < 0.11 mg/kg < 0.28 mg/kg1,2-Dichloroethylene, trans < 0.11 mg/kg < 0.28 mg/kg1,2-Dichloropropane < 0.11 mg/kg < 0.28 mg/kg1,3,5-Trimethylbenzene < 0.11 mg/kg < 0.28 mg/kg1,3-Dichloro-1-propene, cis < 0.11 mg/kg < 0.28 mg/kg1,3-Dichloro-1-propene, trans < 0.11 mg/kg < 0.28 mg/kg1,3-Dichlorobenzene < 0.11 mg/kg < 0.28 mg/kg1,3-Dichloropropane < 0.11 mg/kg < 0.28 mg/kg1,4-Dichlorobenzene < 0.11 mg/kg < 0.28 mg/kg2,2-Dichloropropane < 0.22 mg/kg < 0.57 mg/kgAcetone < 0.86 mg/kg < 2.3 mg/kgAllyl Chloride < 0.22 mg/kg < 0.57 mg/kgBenzene < 0.11 mg/kg < 0.28 mg/kgBromobenzene < 0.11 mg/kg < 0.28 mg/kgBromochloromethane < 0.11 mg/kg < 0.28 mg/kgBromodichloromethane < 0.11 mg/kg < 0.28 mg/kgBromoform < 0.22 mg/kg < 0.57 mg/kgBromomethane < 0.22 mg/kg < 0.57 mg/kgButyl benzene < 0.11 mg/kg < 0.28 mg/kgButylbenzene, sec < 0.11 mg/kg < 0.28 mg/kgButylbenzene, tert < 0.11 mg/kg < 0.28 mg/kgCarbon tetrachloride < 0.11 mg/kg < 0.28 mg/kgChlorobenzene < 0.11 mg/kg < 0.28 mg/kgChlorodibromomethane < 0.11 mg/kg < 0.28 mg/kgChloroethane < 0.11 mg/kg < 0.28 mg/kgChloroform < 0.11 mg/kg < 0.28 mg/kgChloromethane < 0.11 mg/kg < 0.28 mg/kgChlorotoluene, o < 0.11 mg/kg < 0.28 mg/kgChlorotoluene, p < 0.11 mg/kg < 0.28 mg/kgCumene (isopropyl benzene) < 0.11 mg/kg < 0.28 mg/kgCymene p- (Toluene isopropyl p-) < 0.11 mg/kg < 0.28 mg/kgDibromomethane (methylene bromide) < 0.11 mg/kg < 0.28 mg/kgDichlorodifluoromethane (CFC-12) < 0.22 mg/kg < 0.57 mg/kgDichlorofluoromethane (CFC-21) < 0.11 mg/kg < 0.28 mg/kgEthyl benzene < 0.11 mg/kg < 0.28 mg/kgEthyl ether < 0.22 mg/kg < 0.57 mg/kgHexachlorobutadiene < 0.43 mg/kg < 1.1 mg/kgMethyl ethyl ketone < 0.86 mg/kg < 2.3 mg/kgMethyl isobutyl ketone < 0.22 mg/kg < 0.57 mg/kgMethyl tertiary butyl ether (MTBE) < 0.11 mg/kg < 0.28 mg/kgMethylene chloride < 0.43 mg/kg < 1.1 mg/kg

Page 1 of 211/6/2014P:\Mpls\23 MN\19\23191225 Main St Hampton Envrmntl Invst\WorkFiles\DATA MGMT\Table 1_Soil Analytical_05072014.xlsx

Table 1Soil Analytical Data Summary


Hampton, MN

Location SB-2 SB-4Date 4/10/2014 4/11/2014

Depth 8 - 9 ft 5 - 5.5 ftSample Type N N

Parameter

Naphthalene < 0.22 mg/kg < 0.57 mg/kgPropylbenzene < 0.11 mg/kg < 0.28 mg/kgStyrene < 0.11 mg/kg < 0.28 mg/kgTetrachloroethylene < 0.11 mg/kg < 0.28 mg/kgTetrahydrofuran < 0.86 mg/kg < 2.3 mg/kgToluene < 0.11 mg/kg < 0.28 mg/kgTrichloroethylene < 0.11 mg/kg < 0.28 mg/kgTrichlorofluoromethane < 0.11 mg/kg < 0.28 mg/kgTrichlorotrifluoroethane (Freon 113) < 0.11 mg/kg < 0.28 mg/kgVinyl chloride < 0.11 mg/kg < 0.28 mg/kgXylene, m & p < 0.22 mg/kg < 0.57 mg/kgXylene, o < 0.11 mg/kg < 0.28 mg/kg

Page 2 of 211/6/2014P:\Mpls\23 MN\19\23191225 Main St Hampton Envrmntl Invst\WorkFiles\DATA MGMT\Table 1_Soil Analytical_05072014.xlsx

Table 2Groundwater Analytical Data Summary


Hampton, MN

SB-2 TW-1 TW-5 TW-6 TW-8

4/10/2014 4/11/2014 4/11/2014 4/11/2014 4/11/2014

2 - 12 ft 5 - 15 ft 10 - 20 ft 11 - 16 ft 5 - 15 ft

N N N N N

ParameterTotal or

DissolvedMetals

Arsenic Dissolved < 0.010 mg/l < 0.010 mg/l -- -- < 0.010 mg/lBarium Dissolved 0.079 mg/l 0.23 mg/l -- -- 0.094 mg/lCadmium Dissolved < 0.0010 mg/l < 0.0010 mg/l -- -- < 0.0010 mg/lChromium Dissolved < 0.010 mg/l < 0.010 mg/l -- -- < 0.010 mg/lLead Dissolved < 0.0030 mg/l < 0.0030 mg/l -- -- < 0.0030 mg/lMercury Dissolved < 0.00020 mg/l < 0.00020 mg/l -- -- < 0.00020 mg/lSelenium Dissolved < 0.020 mg/l < 0.020 mg/l -- -- < 0.020 mg/lSilver Dissolved < 0.0050 mg/l < 0.0050 mg/l -- -- < 0.0050 mg/l

VOCs1,1,1,2-Tetrachloroethane NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,1,1-Trichloroethane NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,1,2,2-Tetrachloroethane NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,1,2-Trichloroethane NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,1-Dichloro-1-propene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,1-Dichloroethane NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,1-Dichloroethylene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,2,3-Trichlorobenzene NA < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l1,2,3-Trichloropropane NA < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l1,2,4-Trichlorobenzene NA < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l1,2,4-Trimethylbenzene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,2-Dibromo-3-chloropropane NA < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l1,2-Dibromoethane NA < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l1,2-Dichlorobenzene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,2-Dichloroethane NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,2-Dichloroethylene, cis NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,2-Dichloroethylene, trans NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,2-Dichloropropane NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,3,5-Trimethylbenzene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,3-Dichloro-1-propene, cis NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,3-Dichloro-1-propene, trans NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,3-Dichlorobenzene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,3-Dichloropropane NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l1,4-Dichlorobenzene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l2,2-Dichloropropane NA < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/lAcetone NA < 20 ug/l < 20 ug/l 45 ug/l < 20 ug/l < 20 ug/lAllyl Chloride NA < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/lBenzene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lBromobenzene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lBromochloromethane NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lBromodichloromethane NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lBromoform NA < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/lBromomethane NA < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/lButyl benzene NA < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/lButylbenzene, sec NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lButylbenzene, tert NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lCarbon tetrachloride NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lChlorobenzene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lChlorodibromomethane NA < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/lChloroethane NA < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/lChloroform NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lChloromethane NA < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/lChlorotoluene, o NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lChlorotoluene, p NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lCumene (isopropyl benzene) NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lCymene p- (Toluene isopropyl p-) NA < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/lDibromomethane (methylene bromide) NA < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l < 2.5 ug/l

Location

Date

Depth

Sample Type

Page 1 of 211/6/2014P:\Mpls\23 MN\19\23191225 Main St Hampton Envrmntl Invst\WorkFiles\DATA MGMT\Table 2_Groundwater Analytical_05072014.xlsx

Table 2Groundwater Analytical Data Summary


Hampton, MN

SB-2 TW-1 TW-5 TW-6 TW-8

4/10/2014 4/11/2014 4/11/2014 4/11/2014 4/11/2014

2 - 12 ft 5 - 15 ft 10 - 20 ft 11 - 16 ft 5 - 15 ft

N N N N N

ParameterTotal or

Dissolved

Location

Date

Depth

Sample Type

Dichlorodifluoromethane (CFC-12) NA < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/lDichlorofluoromethane (CFC-21) NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lEthyl benzene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lEthyl ether NA < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/lHexachlorobutadiene NA < 10 ug/l < 10 ug/l < 10 ug/l < 10 ug/l < 10 ug/lMethyl ethyl ketone NA < 20 ug/l < 20 ug/l 43 ug/l < 20 ug/l < 20 ug/lMethyl isobutyl ketone NA < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/lMethyl tertiary butyl ether (MTBE) NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lMethylene chloride NA < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/lNaphthalene NA < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/l < 5.0 ug/lPropylbenzene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lStyrene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lTetrachloroethylene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lTetrahydrofuran NA < 20 ug/l < 20 ug/l < 20 ug/l < 20 ug/l < 20 ug/lToluene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lTrichloroethylene NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lTrichlorofluoromethane NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lTrichlorotrifluoroethane (Freon 113) NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lVinyl chloride NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/lXylene, m & p NA < 2.0 ug/l < 2.0 ug/l < 2.0 ug/l < 2.0 ug/l < 2.0 ug/lXylene, o NA < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l < 1.0 ug/l

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Table 3Soil Gas Analytical Data Summary


Hampton, MNVP-1 VP-2 VP-3 VP-4 VP-5 VP-6 VP-7 VP-8

4/11/2014 4/11/2014 4/11/2014 4/11/2014 4/11/2014 4/11/2014 4/11/2014 4/11/2014

4 - 6 ft 6 - 8 ft 4 - 6 ft 4 - 6 ft 4 - 6 ft 6 - 8 ft 3.5 - 4.5 ft 4 - 6 ft

N N N N N N N N

Parameter

Minnesota MPCA Residential Intrusion

Screening Values (ISVs) for Vapor Intrusion Risk

Evaluation

Minnesota MPCA Residential 10X

Intrusion Screening Values (ISVs) for

Vapor Intrusion Risk Evaluation

Minnesota MPCA Industrial Intrusion Screening Values (ISVs) for Vapor Intrusion Risk

Evaluation

Minnesota MPCA Industrial 10X



Effective Date 09/26/2014 09/26/2014 09/26/2014 09/26/2014Exceedance Key Bold Underline Italic Shade

VOCs

1,1,1-Trichloroethane 5000 ug/m3 50000 ug/m3 10000 ug/m3 100000 ug/m3 < 2.7 ug/m3 < 2.7 ug/m3 < 2.7 ug/m3 < 2.7 ug/m3 < 2.7 ug/m3 < 2.7 ug/m3 < 2.7 ug/m3 < 2.7 ug/m31,1,2,2-Tetrachloroethane 0.2 ug/m3 2 ug/m3 1 ug/m3 10 ug/m3 < 3.4 ug/m3 < 3.4 ug/m3 < 3.4 ug/m3 < 3.4 ug/m3 < 3.4 ug/m3 < 3.4 ug/m3 < 3.4 ug/m3 < 3.4 ug/m31,1,2-Trichloroethane 0.6 ug/m3 6 ug/m3 2 ug/m3 20 ug/m3 < 2.7 ug/m3 < 2.7 ug/m3 < 2.7 ug/m3 < 2.7 ug/m3 < 2.7 ug/m3 < 2.7 ug/m3 < 2.7 ug/m3 < 2.7 ug/m31,1-Dichloroethane 500 ug/m3 5000 ug/m3 1000 ug/m3 10000 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m31,1-Dichloroethylene 200 ug/m3 2000 ug/m3 600 ug/m3 6000 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m31,2,4-Trichlorobenzene 4 ug/m3 40 ug/m3 10 ug/m3 100 ug/m3 < 3.7 ug/m3 < 3.7 ug/m3 < 3.7 ug/m3 < 3.7 ug/m3 < 3.7 ug/m3 < 3.7 ug/m3 < 3.7 ug/m3 < 3.7 ug/m31,2,4-Trimethylbenzene 7 ug/m3 70 ug/m3 20 ug/m3 200 ug/m3 31 ug/m3 17 ug/m3 15 ug/m3 19 ug/m3 19 ug/m3 16 ug/m3 17 ug/m3 23 ug/m31,2-Dibromoethane 0.02 ug/m3 0.2 ug/m3 0.06 ug/m3 0.6 ug/m3 < 3.8 ug/m3 < 3.8 ug/m3 < 3.8 ug/m3 < 3.8 ug/m3 < 3.8 ug/m3 < 3.8 ug/m3 < 3.8 ug/m3 < 3.8 ug/m31,2-Dichlorobenzene 200 ug/m3 2000 ug/m3 600 ug/m3 6000 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m31,2-Dichloroethane 0.4 ug/m3 4 ug/m3 1 ug/m3 10 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m31,2-Dichloroethylene, cis 60 (3) ug/m3 600 (3) ug/m3 200 (3) ug/m3 2000 (3) ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m31,2-Dichloroethylene, trans 60 ug/m3 600 ug/m3 200 ug/m3 2000 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m31,2-Dichloropropane 4 ug/m3 40 ug/m3 10 ug/m3 100 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m31,3,5-Trimethylbenzene 6 ug/m3 60 ug/m3 20 ug/m3 200 ug/m3 8.1 ug/m3 4.2 ug/m3 3.8 ug/m3 4.7 ug/m3 4.9 ug/m3 4.4 ug/m3 4.6 ug/m3 5.7 ug/m31,3-Butadiene 0.3 ug/m3 3 ug/m3 1 ug/m3 10 ug/m3 < 1.1 ug/m3 9.2 ug/m3 9.4 ug/m3 23 ug/m3 9.8 ug/m3 22 ug/m3 5.2 ug/m3 5.2 ug/m31,3-Dichloro-1-propene, cis 20 (1) ug/m3 200 (1) ug/m3 60 (1) ug/m3 600 (1) ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m31,3-Dichloro-1-propene, trans 20 (1) ug/m3 200 (1) ug/m3 60 (1) ug/m3 600 (1) ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m31,3-Dichlorobenzene NA NA NA NA < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m31,4-Dichlorobenzene 60 ug/m3 600 ug/m3 200 ug/m3 2000 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m3 < 3.0 ug/m31-Undecene, 4-methyl- 2600 ug/m3 TIC 2100 ug/m3 TIC 850 ug/m3 TIC 2700 ug/m3 TIC 3000 ug/m3 TIC 3600 ug/m3 TIC 2500 ug/m3 TIC 1600 ug/m3 TIC2,6,10-Trimethyldodecane -- 2500 ug/m3 TIC -- -- -- -- -- 2800 ug/m3 TIC2,6,11-Trimethyldodecane 3600 ug/m3 TIC -- 1300 ug/m3 TIC 3400 ug/m3 TIC 4000 ug/m3 TIC 3200 ug/m3 TIC 3000 ug/m3 TIC --2-Hexanone NA NA NA NA < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 3.9 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 2.5 ug/m3 < 2.0 ug/m33,4-Dimethylheptane -- 4200 ug/m3 TIC 2300 ug/m3 TIC 4600 ug/m3 TIC 5200 ug/m3 TIC -- 4700 ug/m3 TIC 3700 ug/m3 TIC3,7-Dimethylnonane -- 1700 ug/m3 TIC 570 ug/m3 TIC 2000 ug/m3 TIC 2200 ug/m3 TIC 2700 ug/m3 TIC 1900 ug/m3 TIC 1100 ug/m3 TIC4-Ethyltoluene NA NA NA NA 8.3 ug/m3 4.9 ug/m3 4.2 ug/m3 5.2 ug/m3 5.5 ug/m3 5.4 ug/m3 5.0 ug/m3 5.7 ug/m3Acetone 31000 ug/m3 310000 ug/m3 87000 ug/m3 870000 ug/m3 460 ug/m3 110 ug/m3 110 ug/m3 96 ug/m3 86 ug/m3 44 ug/m3 120 ug/m3 69 ug/m3Benzene 4.5 ug/m3 45 ug/m3 13 ug/m3 130 ug/m3 5.8 ug/m3 6.5 ug/m3 19 ug/m3 18 ug/m3 7.6 ug/m3 14 ug/m3 5.4 ug/m3 5.6 ug/m3Benzyl chloride 1 ug/m3 10 ug/m3 3 ug/m3 30 ug/m3 < 2.6 ug/m3 < 2.6 ug/m3 < 2.6 ug/m3 < 2.6 ug/m3 < 2.6 ug/m3 < 2.6 ug/m3 < 2.6 ug/m3 < 2.6 ug/m3Bromodichloromethane NA NA NA NA < 3.4 ug/m3 < 3.4 ug/m3 < 3.4 ug/m3 < 3.4 ug/m3 < 3.4 ug/m3 < 3.4 ug/m3 < 3.4 ug/m3 < 3.4 ug/m3Bromoform 9 ug/m3 90 ug/m3 30 ug/m3 300 ug/m3 < 5.2 ug/m3 < 5.2 ug/m3 < 5.2 ug/m3 < 5.2 ug/m3 < 5.2 ug/m3 < 5.2 ug/m3 < 5.2 ug/m3 < 5.2 ug/m3Bromomethane 5 ug/m3 50 ug/m3 10 ug/m3 100 ug/m3 < 1.9 ug/m3 < 1.9 ug/m3 < 1.9 ug/m3 < 1.9 ug/m3 < 1.9 ug/m3 < 1.9 ug/m3 < 1.9 ug/m3 < 1.9 ug/m3Carbon disulfide 700 ug/m3 7000 ug/m3 2000 ug/m3 20000 ug/m3 5.7 ug/m3 2.2 ug/m3 2.1 ug/m3 4.1 ug/m3 < 1.6 ug/m3 3.6 ug/m3 4.5 ug/m3 7.8 ug/m3Carbon tetrachloride 0.7 ug/m3 7 ug/m3 2 ug/m3 20 ug/m3 < 3.1 ug/m3 < 3.1 ug/m3 < 3.1 ug/m3 < 3.1 ug/m3 < 3.1 ug/m3 < 3.1 ug/m3 < 3.1 ug/m3 < 3.1 ug/m3Chlorobenzene 50 ug/m3 500 ug/m3 100 ug/m3 1000 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3 < 2.3 ug/m3Chlorodibromomethane NA NA NA NA < 4.3 ug/m3 < 4.3 ug/m3 < 4.3 ug/m3 < 4.3 ug/m3 < 4.3 ug/m3 < 4.3 ug/m3 < 4.3 ug/m3 < 4.3 ug/m3Chloroethane 10000 ug/m3 100000 ug/m3 30000 ug/m3 300000 ug/m3 < 1.3 ug/m3 < 1.3 ug/m3 < 1.3 ug/m3 < 1.3 ug/m3 < 1.3 ug/m3 < 1.3 ug/m3 < 1.3 ug/m3 < 1.3 ug/m3Chloroform 100 ug/m3 1000 ug/m3 300 ug/m3 3000 ug/m3 < 2.4 ug/m3 < 2.4 ug/m3 < 2.4 ug/m3 < 2.4 ug/m3 < 2.4 ug/m3 < 2.4 ug/m3 < 2.4 ug/m3 < 2.4 ug/m3Chloromethane 90 ug/m3 900 ug/m3 300 ug/m3 3000 ug/m3 < 1.0 ug/m3 1.5 ug/m3 1.3 ug/m3 1.8 ug/m3 1.5 ug/m3 2.1 ug/m3 1.5 ug/m3 1.6 ug/m3Cyclohexane 6000 ug/m3 60000 ug/m3 20000 ug/m3 200000 ug/m3 < 1.7 ug/m3 4.7 ug/m3 5.3 ug/m3 7.3 ug/m3 4.1 ug/m3 9.2 ug/m3 3.5 ug/m3 2.9 ug/m3Decane, 2,2,9-trimethyl- -- -- 850 ug/m3 TIC -- -- -- -- --Decane, 2,5,6-trimethyl- -- 1700 ug/m3 TIC -- -- -- -- 2100 ug/m3 TIC --Decane, 2,6,6-trimethyl 1200 ug/m3 TIC -- -- 1200 ug/m3 TIC 1500 ug/m3 TIC 1400 ug/m3 TIC -- 870 ug/m3 TICDichlorodifluoromethane (CFC-12) < 2.5 ug/m3 < 2.5 ug/m3 < 2.5 ug/m3 < 2.5 ug/m3 < 2.5 ug/m3 < 2.5 ug/m3 < 2.5 ug/m3 < 2.5 ug/m3Dichlorotetrafluoroethane NA NA < 3.5 ug/m3 < 3.5 ug/m3 < 3.5 ug/m3 < 3.5 ug/m3 < 3.5 ug/m3 < 3.5 ug/m3 < 3.5 ug/m3 < 3.5 ug/m3Dodecane, 4-methyl- 5600 ug/m3 TIC 5400 ug/m3 TIC 2400 ug/m3 TIC 6300 ug/m3 TIC 7000 ug/m3 TIC 7900 ug/m3 TIC 6200 ug/m3 TIC 4500 ug/m3 TICEthyl acetate 3000 ug/m3 30000 ug/m3 8000 ug/m3 80000 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 4.3 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3Ethyl Alcohol 15000 ug/m3 150000 ug/m3 42000 ug/m3 420000 ug/m3 < 0.94 ug/m3 7.8 ug/m3 3.8 ug/m3 8.1 ug/m3 2.9 ug/m3 15 ug/m3 4.0 ug/m3 2.7 ug/m3Ethyl benzene 1000 ug/m3 10000 ug/m3 3000 ug/m3 30000 ug/m3 14 ug/m3 12 ug/m3 7.8 ug/m3 9.9 ug/m3 10 ug/m3 14 ug/m3 9.2 ug/m3 8.9 ug/m3Heptane NA NA NA NA 11 ug/m3 8.9 ug/m3 9.4 ug/m3 14 ug/m3 7.8 ug/m3 16 ug/m3 5.8 ug/m3 5.7 ug/m3

Location

Date

Depth

Sample Type

Page 1 of 411/6/2014P:\Mpls\23 MN\19\23191225 Main St Hampton Envrmntl Invst\WorkFiles\DATA MGMT\Table 3_Soil Vapor Analytical Data Summary_April 2014.xlsx



Hampton, MNVP-1 VP-2 VP-3 VP-4 VP-5 VP-6 VP-7 VP-8

4/11/2014 4/11/2014 4/11/2014 4/11/2014 4/11/2014 4/11/2014 4/11/2014 4/11/2014

4 - 6 ft 6 - 8 ft 4 - 6 ft 4 - 6 ft 4 - 6 ft 6 - 8 ft 3.5 - 4.5 ft 4 - 6 ft

N N N N N N N N

Parameter

Minnesota MPCA Residential Intrusion

Screening Values (ISVs) for Vapor Intrusion Risk

Evaluation

Minnesota MPCA Residential 10X



Minnesota MPCA Industrial Intrusion Screening Values (ISVs) for Vapor Intrusion Risk

Evaluation

Minnesota MPCA Industrial 10X



Effective Date 09/26/2014 09/26/2014 09/26/2014 09/26/2014Exceedance Key Bold Underline Italic Shade

Location

Date

Depth

Sample Type

Heptane, 2,2,4,6,6-pentamethyl -- 1900 ug/m3 TIC 550 ug/m3 TIC 1900 ug/m3 TIC 2100 ug/m3 TIC 2800 ug/m3 TIC 1900 ug/m3 TIC 1100 ug/m3 TICHeptane, 3,3-dimethyl- 3000 ug/m3 TIC -- -- -- -- 4500 ug/m3 TIC -- --Hexachlorobutadiene 0.5 ug/m3 5 ug/m3 5 ug/m3 10 ug/m3 < 5.3 ug/m3 < 5.3 ug/m3 < 5.3 ug/m3 < 5.3 ug/m3 < 5.3 ug/m3 < 5.3 ug/m3 < 5.3 ug/m3 < 5.3 ug/m3Hexane (C6) 2000 ug/m3 20000 ug/m3 6000 ug/m3 60000 ug/m3 6.3 ug/m3 5.4 ug/m3 8.3 ug/m3 14 ug/m3 6.1 ug/m3 14 ug/m3 4.4 ug/m3 3.6 ug/m3Hexane, 3,3-dimethyl- 3500 ug/m3 TIC 3900 ug/m3 TIC 1500 ug/m3 TIC 4000 ug/m3 TIC 4500 ug/m3 TIC 5500 ug/m3 TIC 4200 ug/m3 TIC 2700 ug/m3 TICIsooctane (2,2,4-Trimethylpentane) 2200 ug/m3 TIC -- -- -- -- -- -- --Isopropyl alcohol 7000 ug/m3 70000 ug/m3 20000 ug/m3 200000 ug/m3 5.0 ug/m3 2.8 ug/m3 2.4 ug/m3 13 ug/m3 4.8 ug/m3 28 ug/m3 17 ug/m3 8.0 ug/m3Methyl ethyl ketone 5000 ug/m3 50000 ug/m3 10000 ug/m3 100000 ug/m3 15 ug/m3 12 ug/m3 19 ug/m3 20 ug/m3 11 ug/m3 11 ug/m3 27 ug/m3 10 ug/m3Methyl isobutyl ketone 3000 ug/m3 30000 ug/m3 8000 ug/m3 80000 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 5.6 ug/m3 < 2.0 ug/m3 < 2.0 ug/m3 3.2 ug/m3 2.3 ug/m3Methyl tertiary butyl ether (MTBE) 3000 ug/m3 30000 ug/m3 8000 ug/m3 80000 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3Methylene chloride 20 ug/m3 200 ug/m3 60 ug/m3 600 ug/m3 < 1.7 ug/m3 < 1.7 ug/m3 < 1.7 ug/m3 < 1.7 ug/m3 < 1.7 ug/m3 < 1.7 ug/m3 < 1.7 ug/m3 2.6 ug/m3Naphthalene 9 ug/m3 90 ug/m3 30 ug/m3 300 ug/m3 4.9 ug/m3 3.7 ug/m3 3.7 ug/m3 3.9 ug/m3 3.6 ug/m3 3.9 ug/m3 3.8 ug/m3 4.4 ug/m3Nonane, 3-methyl-5-propyl- 2300 ug/m3 TIC -- -- -- -- -- -- --Octane, 2,2-dimethyl- 2300 ug/m3 TIC 2500 ug/m3 TIC 840 ug/m3 TIC 2500 ug/m3 TIC 2800 ug/m3 TIC 3600 ug/m3 TIC 2700 ug/m3 TIC 1600 ug/m3 TICOctane, 2,4,6-trimethyl- -- -- -- -- 4100 ug/m3 TIC -- -- --Octane, 2,6,6-trimethyl- 3700 ug/m3 TIC 2900 ug/m3 TIC 1100 ug/m3 TIC 3600 ug/m3 TIC -- 4300 ug/m3 TIC 3200 ug/m3 TIC 2300 ug/m3 TICPropylene 3000 ug/m3 30000 ug/m3 8000 ug/m3 80000 ug/m3 82 ug/m3 80 ug/m3 92 ug/m3 160 ug/m3 95 ug/m3 130 ug/m3 38 ug/m3 33 ug/m3Styrene 1000 ug/m3 10000 ug/m3 3000 ug/m3 30000 ug/m3 < 2.1 ug/m3 < 2.1 ug/m3 < 2.1 ug/m3 < 2.1 ug/m3 < 2.1 ug/m3 < 2.1 ug/m3 < 2.1 ug/m3 < 2.1 ug/m3Tetrachloroethylene 2 (3) ug/m3 20 (3) ug/m3 30 (3) ug/m3 300 (3) ug/m3 17 ug/m3 16 ug/m3 7.1 ug/m3 12 ug/m3 13 ug/m3 21 ug/m3 11 ug/m3 9.3 ug/m3Tetrahydrofuran NA NA NA NA < 1.5 ug/m3 < 1.5 ug/m3 < 1.5 ug/m3 < 1.5 ug/m3 < 1.5 ug/m3 1.8 ug/m3 < 1.5 ug/m3 < 1.5 ug/m3Toluene 5000 ug/m3 50000 ug/m3 10000 ug/m3 100000 ug/m3 48 ug/m3 45 ug/m3 36 ug/m3 34 ug/m3 33 ug/m3 56 ug/m3 28 ug/m3 26 ug/m3Trichloroethylene 2 (3) ug/m3 20 (3) ug/m3 6 (3) ug/m3 60 (3) ug/m3 < 1.1 ug/m3 < 1.1 ug/m3 < 1.1 ug/m3 < 1.1 ug/m3 < 1.1 ug/m3 < 1.1 ug/m3 < 1.1 ug/m3 < 1.1 ug/m3Trichlorofluoromethane 700 ug/m3 7000 ug/m3 2000 ug/m3 20000 ug/m3 < 2.8 ug/m3 < 2.8 ug/m3 < 2.8 ug/m3 < 2.8 ug/m3 < 2.8 ug/m3 < 2.8 ug/m3 < 2.8 ug/m3 < 2.8 ug/m3Trichlorotrifluoroethane (Freon 113) 30000 ug/m3 300000 ug/m3 80000 ug/m3 800000 ug/m3 < 3.8 ug/m3 < 3.8 ug/m3 < 3.8 ug/m3 < 3.8 ug/m3 < 3.8 ug/m3 < 3.8 ug/m3 < 3.8 ug/m3 < 3.8 ug/m3Vinyl acetate 200 ug/m3 2000 ug/m3 600 ug/m3 6000 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3 < 1.8 ug/m3Vinyl chloride 1 ug/m3 10 ug/m3 3 ug/m3 30 ug/m3 < 0.51 ug/m3 < 0.51 ug/m3 < 0.51 ug/m3 < 0.51 ug/m3 < 0.51 ug/m3 < 0.51 ug/m3 < 0.51 ug/m3 < 0.51 ug/m3Xylene, m & p 100 (2) ug/m3 1000 (2) ug/m3 300 (2) ug/m3 3000 (2) ug/m3 66 ug/m3 48 ug/m3 30 ug/m3 41 ug/m3 45 ug/m3 56 ug/m3 39 ug/m3 39 ug/m3Xylene, o 100 (2) ug/m3 1000 (2) ug/m3 300 (2) ug/m3 3000 (2) ug/m3 25 ug/m3 17 ug/m3 11 ug/m3 15 ug/m3 16 ug/m3 20 ug/m3 14 ug/m3 15 ug/m3




Hampton, MN

Footnote

-- Not analyzed/not available.N Sample Type: NormalFD Sample Type: Field Duplicate

NA NA (not applicable) indicates that a fractional portion of the sample is not part of the analytical testing or field collection procedures.

ND Not detected.TIC Tentatively identified compound

Validated

Laboratory data has been evaluated following Barr QA/QC procedures and/or project-specific data review requirements. Field data has been verified for transcription errors, consistency and completeness. Data transferred from the previous database (9/2009) were categorized as validated, but may be comprised of any one of the following data status categories: Validated, SSource, No QC or Legacy.

No QC Laboratory data has been excluded from Barr QA/QC procedures.

SSourceLaboratory and/or field data obtained from a secondary source external to Barr. Second source QA/QC evaluation procedures may or may not have been performed beyond the original data generator.

LegacyHistorical laboratory data (internal at Barr). QA/QC evaluation procedures may or may not have been performed beyond the original data generator

Qualifiera Estimated value, calculated using some or all values that are estimates.b Potential false positive value based on blank data validation procedures.c Coeluting compound.e Estimated value, exceeded the instrument calibration range.f Sample was collected at a flowrate exceeding the recommended rate of 200 mL/minute.h EPA recommended sample preservation, extraction or analysis holding time was exceeded. i Indeterminate value based on failure of blind duplicate data to meet quality assurance criteria.j Reported value is less than the stated laboratory quantitation limit and is considered an estimated value.p Relative percent difference is >40% (25% CLP pesticides) between primary and confirmation GC columns.pp Small peak in chromatogram below method detection limit.

rThe presence of the compound is suspect based on the ID criteria of the retention time and relative retention time obtained from the examination of the chromatograms.

s Potential false positive value based on statistical analysis of blank sample data.t Sample positive for total coliforms but negative for E. coli.v Sample was collected under a vacuum of greater than XX inches of mercury. * Estimated value, QA/QC criteria not met.** Unusable value, QA/QC criteria not met.AT Sample chromatogram is noted to be atypical of a petroleum product.EMPC Estimated maximum possible concentration.

BQABarr-applied project specific qualifier: extraction and/or analyses conducted using an alternative method and/or procedure.

BQC Barr-applied project specific qualifier: plant shut down.BQD Barr-applied project specific qualifier: equipment malfunction.BQE Barr-applied project specific qualifier: equipment adjustment.BQM Barr-applied project specific qualifier: manual measurement.BQN Barr-applied project specific qualifier: unable to be sampled or measured due to various reasons.BQP Barr-applied project specific qualifier: atypical chromatographic pattern.BQQ Barr-applied project specific qualifier: some aspect of QA/QC was not met.BQR Barr-applied project specific qualifier: location was re-sampled.BQS Barr-applied project specific qualifier: data is considered suspect.BQT Barr-applied project specific qualifier: summed value not displayed due to insufficient field length.BQU Barr-applied project specific qualifier: historical qualifier - definition unknown.BQV Barr-applied project specific qualifier: estimated value.BQX Barr-applied project specific qualifier: see notes for qualifier definition.BQZ Barr-applied project specific qualifier: data is considered unusable.

Data Footnotes and Qualifiers




Hampton, MNAction Level Qualifiers/Footnotes

Qualifier Definition(1) Based on 1,3-Dichloropropene CAS number 542-75-6.

(2) Based on total xylenes CAS number 1330-20-7.

(3) Interim ISV value.

NA No toxicity data available.

MN MPCA Industrial ISVs, MN MPCA Industrial 10X ISVs,

MN MPCA Residential ISVs,MN MPCA Residential 10X ISVs


Figures

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50

456747

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500 0 500Feet

Figure 1SITE LOCATION

Former Farmers Union Co-op SiteHampton, Minnesota

Barr Footer: ArcGIS 10.2.1, 2014-02-11 09:31 File: I:\Projects\23\19\1225\Maps\Reports\PhaseII_Investigation_Feb2014\Fig01 Site Location.mxd User: mbs2

_̂Project Area

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IA

MI

ND

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Approximate Property Boundary

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2A_SB_32A_VP_3

2_SB_122_TW_122_VP_12

2_SB_42_VP_4

2_SB_142_TW_142_VP_14

2_SB_102_TW_102_VP_10

2_SB_11

2_SB_9

2_SB_2

2_SB_42_VP_4

2_SB_52_VP_5

2_SB_7B2_TW_7B

2_SB_8

2_SB_7A

2_SB_62_TW_62_VP_6

2_SB_12_VP_1

2_SB_1 (6/12)2_TW_1 (6/12)2_VP_1 (6/12)

2_SB_32_VP_3

B

B'

A

A'

SB_5TW_5VP_5

SB_4VP_4

SB_3VP_3

SB_2VP_2

SB_6TW_6VP_6

SB_1TW_1VP_1

SB_7VP_7

SB_8TW_8VP_8

LINCOLN ST

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Aerometrics

Barr Footer: ArcGIS 10.2.1, 2014-10-08 13:10 File: I:\Projects\23\19\1225\Maps\Reports\Supplemental_PhaseII_Investigation_May2014\Fig02 2014 Sample Locations.mxd User: mlw3

") January 2012 Sample Location (Stantec)

#* June 2012 Sample Location (Stantec)

!. April 2014 Sample Location

Cross Section Location

Approximate Property Boundary(Provided by others)

I80 0 80

Feet

Figure 2

SAMPLE LOCATIONSFormer Farmers Union Co-Op Site

Hampton, Minnesota

Imagery Source: Aerometric; 2013

Figure 3

Geologic Cross-Section A-A'Former Farmers Union Co-op Site

Hampton, Minnesota

DRAFT

LEGEND

Geologic Contact

Inferred Geologic Contact

Approximate Water table

Monitoring Well Screen

Soil Boring/Piezometer

0 50

Approximate Horizontal Scale in Feet10X Vertical Exaggeration

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970

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Surface topography from Minnesota Department of Natural Resources.“1m LiDAR Elevation, Twin Cities Metro Region, Dakota County, 11/12/2011 to 11/15/2011” Available from http://www.mngeo.state.mn.us/. Retrieved January 30, 2014.

CROSS SECTION LOCATION MAP

ESTIMATED PARKING LOT FILL

SAND

SILTY SAND(FILL?)

GRAVELPATCH

ASPHALT

TOPSOIL

B-B

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pt

ASPHALT

ESTIMATED OFF-SITE FILL

ESTIMATED CAVITY FILL

Historic Building Slab andFoundation Area

SILTTO CLAY

} 40

feet

ASPHALT

SILTTO CLAY

SILTTO CLAY

LiDAR ground surface elevation

SILTTO CLAY

ESTIMATED ON-SITE FILL

2-S

B-6

2-S

B-7

A

2-S

B-8

2-S

B-9

2-S

B-1

0

2-S

B-1

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B-5

2-S

B-5

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2A-S

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SB

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SB

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SB

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SB-X Barr April 2014 boring

2-SB-X Stantec Jan & June 2012 boring

Feet

(MS

L) ORGANICSILTY SAND

SILTTO CLAY

SILTTO CLAY

SILTY SAND

Figure 4

Geologic Cross-Section B-B'Former Farmers Union Co-op Site

Hampton, Minnesota

DRAFT

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0 50

Approximate Horizontal Scale in Feet10X Vertical Exaggeration

BWEST

B'EAST

LEGEND

Geologic Contact

Inferred Geologic Contact

Approximate Water table

Monitoring Well Screen

Soil Boring/Piezometer

LiDAR ground surface elevation

SB-X Barr April 2014 boring

2-SB-X Stantec Jan & June 2012 boring

970

975

980

985

965

970

975

980

985

965

Surface topography from Minnesota Department of Natural Resources.“1m LiDAR Elevation, Twin Cities Metro Region, Dakota County,11/12/2011 to 11/15/2011” Available from http://www.mngeo.state.mn.us/.Retrieved January 30, 2014.

CROSS SECTION LOCATION MAP

2A-S

B-2

SB

-1 SB

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2-S

B-1

2

2-S

B-4

2-S

B-1

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SB

-3

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SANDYSILT

(FILL?)SAND

CONCRETE

FILL

SILTY SAND

ASPHALT

Historic Building Slab & Foundation Area

SILTTO CLAY

SILTTO CLAY

SILTTO CLAY

ASPHALT

FILL

SILTTO CLAY

SILTTO CLAY

POORLY GRADED

SAND WITH SILT

SILTY SANDCLAYEY SAND

Appendices

Appendix A

Select Previous Investigation Results

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

2_SB_52_MW_5

2_SB_7B2_TW_7B

2_SB_152_TW_15

2_SB_1 (6/12)2_TW_1 (6/12)2_VP_1 (6/12)

2_SB_2

2_SB_5P2_TW_5P2_VP_5P

2_SB_62_TW_62_VP_6

2_SB_7A

2_SB_8

2_SB_9

2_SB_102_TW_102_VP_10

2_SB_11

2_SB_122_TW_122_VP_12

2_SB_142_TW_142_VP_14

2_SB_17

2A_SB_1

2A_SB_4

2A_SB_2

2_SB_12_VP_1

2_SB_32_VP_3

2_SB_42_VP_4

2A_SB_32A_VP_3

2A_SB_52A_VP_5

MPCA UAST Site

Grain Elevator # 1

Two Oil Fired Heaters South Warehouse

Railroad

Coal Bin

Auto Service StationMPCA UAST Site

Possible Canopy Location

Grain Elevator # 2

Former Soil Stockpiles

Local Oil Company SiteDakota County Waste SiteClosed MPCA LUAST Site

Closed MPCA LUAST Site

Legend

Property Boundary

Sampling Locations

Sample Period

!. January - 2012

!. June - 2012

One Team. Infinite Solutions.

Stantec Consulting2335 Highway 36 WSt. Paul, Minnesotatel 651.636.4600

0 50 10025Feet

Data Sources include:Dakota County, MN 2010 Aerial Photography,

JJB 10/11/2012

V:\1937\active\193700826\07_gis\mxds\FarmersU_Fig2_Site_Layout_SampleLocs.mxd

Last Updated: 10/11/2012The information on this map has been compiled by Stantec staff from a variety of sources and is subject to change without notice. Stantec makes no representations or warranties, express or implied,as to accuracy, completeness,timeliness, or rights to the use of such information.

Project Information193700826Figure 2

Site Layout and Sample LocationsFormer Farmer's Union Co-op

Hampton, Minnesota

Peer Review by

Final Review by

Prepared by

Initials Date

±SB = Soil BoringTW = Temporary Groundwater Monitoring WellVP = Vapor Port

MPCA = Minnesota Pollution Control AgencyUAST = Underground/Above Ground Storage TankLUAST = Leaking Underground / Above Ground Storage Tank

RJB 10/11/2012

Acronyms and Abbreviations

VOCs in Vapor - Concentration Label Code:Blue Font = Concentrations that exceed 10X MPCA's Residential Intrusion Screening ValueRed Font = Concentrations that exceed 10X MPCA's Industrial Intrusion Screening Value

2_VP_12Trichloroethene - 48.9 ug/m3

2_VP_10Trichloroethene - 34.6 ug/m3

2_VP_141,2,4-Trimethylbenzene - 697 ug/m3

1,3,5-Trimethylbenzene - 247 ug/m3

Benzene - 567 ug/m3

Naphthalene - 381 ug/m3

Trichloroethene - 1,030 ug/m3

m&p-Xylene - 1,190 ug/m3

2_VP_1 (6/12)Trichloroethene - 33.8 ug/m3

2_VP_5PTrichloroethene - 38.9 ug/m3

MPCA UAST Site

Grain Elevator # 1

Two Oil Fired Heaters South Warehouse

Railroad

Coal Bin

Auto Service StationMPCA UAST Site

Possible Canopy Location

Grain Elevator # 2

Former Soil Stockpiles

Local Oil Company SiteDakota County Waste SiteClosed MPCA LUAST Site

Closed MPCA LUAST Site

2_VP_1

2_VP_3

2_VP_4

2_VP_6

2A_VP_3

2A_VP_5

One Team. Infinite Solutions.

Stantec Consulting2335 Highway 36 WSt. Paul, Minnesotatel 651.636.4600

0 50 10025Feet

Data Sources include:Dakota County, MN 2010 Aerial Photography, Fire Underwriters Inspection Bureau, January 1950

JJB 10/11/2012

V:\1937\active\193700826\07_gis\mxds\FarmersU_Fig7_VOC_Vapor.mxd

Last Updated: 10/12/2012The information on this map has been compiled by Stantec staff from a variety of sources and is subject to change without notice. Stantec makes no representations or warranties, express or implied,as to accuracy, completeness,timeliness, or rights to the use of such information.

Project Information193700826Figure 7

VOC Concentrations in Soil VaporFormer Farmer's Union Co-op

Hampton, Minnesota

Peer Review by

Final Review by

Prepared by

Initials Date

±

Acronyms and Abbreviations:VOC = Volatile Organic CompoundMPCA = Minnesota Pollution Control Agencyug/m3 = micrograms per cubic meterISV = Intrusion Screening ValueND = Non-detect (less than detection limit)

Legend

Property Boundary

VOCs - Vapor

Number of Exceedances

0

1

6

VOCs - Possible Known Exceedanceof 10X MPCA's Residential orIndustrial Instrusion Screening Values

RJB 10/11/2012

TABLE 10VAPOR CHEMISTRY DATA FOR TOXIC VOLATILE ORGANIC COMPOUNDSFORMER FARMER'S UNION CO-OP PROPERTY (SITE 2), HAMPTON, MN

Page 1 of 1

1 1 3 4 5P 6 10 12 142_VP_1-@4'-6'

2_VP_1 @2'

2_VP_3-@5'

2_VP_4-@8'

2_VP_5P @2'

2_VP_6 @2'

2_VP_10 @2'

2_VP_12 @2'

2_VP_14 @2'

01/17/12 06/19/12 01/18/12 01/18/12 06/19/12 06/19/12 06/19/12 06/19/12 06/19/12

ResidentialResidential

10XIndustrial

Industrial 10X

1,1,1-Trichloroethane 5,000 50,000 10,000 100,000 <403 <2.0 <0.65 <429 <1.9 <2.0 <2.0 <3.2 <1601,1,2,2-Tetrachloroethane 0.2 2 1 10 <403 <1.3 <0.65 <429 <1.2 <1.3 <1.3 <2.0 <1011,1,2-Trichloroethane 0.6 6 2 20 <403 <0.99 <0.65 <429 <0.96 <0.99 <0.99 <1.6 <79.21,1,2-Trichlorotrifluoroethane 30,000 300,000 80,000 800,000 <403 <2.9 <0.65 <429 <2.8 <2.9 <2.9 <4.7 <2301,1-Dichloroethane 0.4 4 1 10 <403 <1.5 <0.65 <429 <1.4 <1.5 <1.5 <2.4 <1181,1-Dichloroethene NE NE NE NE <403 <1.5 <0.65 <429 <1.4 <1.5 <1.5 <2.4 <1171,2,4-Trichlorobenzene 4 40 10 100 <403 <1.8 <0.65 <429 <1.7 <1.8 <1.8 <2.9 <1431,2,4-Trimethylbenzene 7 70 20 200 <403 27.7 2.4 <429 31.7 24.2 28.5 22.7 6971,2-Dibromoethane (EDB) 0.02 0.2 0.06 1 <403 <2.8 <0.65 <429 <2.7 <2.8 <2.8 <4.6 <2251,2-Dichlorobenzene 200 2,000 600 6,000 <403 <2.2 <0.65 <429 <2.1 <2.2 <2.2 <3.6 <1761,2-Dichloroethane 200 2,000 600 6,000 <403 <0.74 <0.65 <429 <0.71 <0.74 <0.74 <1.2 <59.01,2-Dichloropropane 4 40 10 100 <403 <1.7 <0.65 <429 <1.6 <1.7 <1.7 <2.7 <1351,3,5-Trimethylbenzene 6 60 20 200 <403 <1.8 <0.65 <429 9.6 <1.8 <1.8 <2.9 2471,3-Butadiene 0.3 3 1 10 <403 <0.81 <0.65 <429 <0.78 <0.81 <0.81 <1.3 <64.81,3-Dichlorobenzene NE NE NE NE <403 <2.2 <0.65 <429 <2.1 <2.2 <2.2 <3.6 <1761,4-Dichlorobenzene 60 600 200 2,000 <403 <2.2 <0.65 <429 <2.1 <2.2 <2.2 <3.6 <1762-Butanone (MEK) 5,000 50,000 10,000 100,000 <403 37.2 1.2 <429 53 22.3 63.9 32.9 9382-Hexanone NE NE NE NE <403 7.8 <0.65 <429 7.7 4.0 13.1 4.7 <1202-Propanol 7000 70,000 20,000 200,000 <403 <4.5 <0.65 <429 <4.4 <4.5 <4.5 <7.3 <3604-Ethyltoluene NE NE NE NE <403 11 1 <429 9.5 8.6 11.7 9.2 <144

4-Methyl-2-pentanone (MIBK) 3,000 30,000 8,000 80,000 <403 4.9 <0.65 <429 <1.4 2.5 6.5 4.6 <120

Acetone 31,000 310,000 87,000 870,000 <403 241 9.6 <429 254 137 318 331 3920Benzene 4.5 45 13 130 <403 1.9 <0.65 <429 42.8 8.5 3.4 5.7 567Benzyl chloride 1 10 3 30 <403 <1.9 <0.65 <429 <1.8 <1.9 <1.9 <3.1 <151Bromodichloromethane NE NE NE NE <403 <2.4 <0.65 <429 <2.4 <2.4 <2.4 <4.0 <196Bromoform 9 90 30 300 <403 <3.8 <0.65 <429 <3.7 <3.8 <3.8 <6.1 <302Bromomethane 5 50 10 100 <403 <1.4 <0.65 <429 4.5 <1.4 <1.4 <2.3 <114Carbon disulfide 700 7,000 2,000 20,000 <403 15 25.4 <429 164 20.5 58.8 43.5 1800Carbon tetrachloride 0.7 7 2 20 <403 <1.2 <0.65 <429 <1.1 <1.2 <1.2 <1.9 <92.2Chlorobenzene 50 500 100 1,000 <403 <1.7 <0.65 <429 <1.6 <1.7 <1.7 <2.7 <135Chloroethane 10,000 100,000 30,000 300,000 <403 <0.97 <0.65 <429 <0.94 <0.97 <0.97 <1.6 <77.8Chloroform 100 1,000 300 3,000 <403 <1.8 <0.65 <429 <1.7 <1.8 <1.8 <2.9 <143Chloromethane 90 900 300 3,000 <403 <0.76 <0.65 <429 <0.73 1.5 <0.76 2.4 <60.5Cyclohexane 6,000 60,000 20,000 200,000 11,700 <1.2 1.1 32,300 41.3 <1.2 6.3 14.6 12,400 Dibromochloromethane NE NE NE NE <403 <3.1 <0.65 <429 <3.0 <3.1 <3.1 <5.1 <249Dichlorodifluoromethane 500 5,000 1,000 10,000 <403 <1.8 <0.65 <429 <1.8 2.3 <1.8 <2.9 <145Dichlorotetrafluoroethane NE NE NE NE <403 <2.6 <0.65 <429 <2.5 <2.6 <2.6 <4.1 <204Ethanol 15,000 150,000 42,000 420,000 <403 71.9 1.3 <429 31.1 16.7 18 45.5 <54.7Ethyl acetate 3,000 30,000 8,000 80,000 <403 <1.3 <0.65 <429 <1.3 <1.3 <1.3 <2.1 <105Ethylbenzene 1,000 10,000 3,000 30,000 <403 10.4 0.87 <429 18.3 6.0 13.2 8.4 359Hexachloro-1,3-butadiene 0.5 5 1 10 <403 <4.0 <0.65 <429 <3.8 <4.0 <4.0 <6.4 <317Methyl-tert-butyl ether 3,000 30,000 8,000 80,000 <403 <1.3 <0.65 <429 <1.3 <1.3 <1.3 <2.1 <105Methylene Chloride 20 200 60 600 <403 2.3 <0.65 <429 <1.2 3.3 3.2 77.2 <102Naphthalene 9 90 30 300 <403 16.8 <0.65 <429 23.2 15.1 13.5 17.1 381Propylene 3000 30,000 8,000 80,000 <403 12.2 <0.65 <429 157 <0.63 69.6 <1.0 11300Styrene 1,000 10,000 3,000 30,000 <403 4.5 <0.65 <429 3.6 3.0 5.1 <2.5 <125Tetrachloroethene 20 200 60 600 <403 <1.2 <0.65 <429 <1.2 3.0 <1.2 <2.0 <99.2Tetrahydrofuran NE NE NE NE <403 <1.1 <0.65 <429 <1.0 <1.1 <1.1 <1.8 <86.4Toluene 5,000 50,000 10,000 100,000 <403 6.2 1.4 <429 44.6 11.8 9.3 23.2 578Trichloroethene 3 30 8 80 <403 33.8 <0.65 <429 38.9 9.2 34.6 48.9 1030Trichlorofluoromethane 700 7,000 2,000 20,000 <403 <2.1 <0.65 <429 20.5 <2.1 <2.1 <3.3 <164Vinyl acetate 200 2,000 600 6,000 <403 <1.3 <0.65 <429 <1.2 <1.3 <1.3 <2.1 <102Vinyl chloride 1 10 3 30 <403 <0.47 <0.65 <429 <0.45 <0.47 <0.47 <0.76 <37.4cis-1,2-Dichloroethene 60 600 200 2,000 <403 <1.5 <0.65 <429 <1.4 1.7 <1.5 <2.4 <117cis-1,3-Dichloropropene 20 200 60 600 <403 <1.7 <0.65 <429 <1.6 <1.7 <1.7 <2.7 <132m&p-Xylene 100 1,000 300 3,000 <403 49.5 2.7 <429 49.6 33.3 57.3 33.9 1190n-Heptane NE NE NE NE 2,990 2.1 <0.65 <429 31.1 <1.5 <1.5 10.1 <120n-Hexane 2,000 20,000 6,000 60,000 2,430 3.0 0.75 <429 49 6.0 12 65.1 688o-Xylene 100 1,000 300 3,000 <403 29.8 0.83 <429 23.7 19.5 35.7 17.6 332trans-1,2-Dichloroethene 200 2,000 600 6,000 <403 <1.5 <0.65 <429 <1.4 <1.5 <1.5 <2.4 <117trans-1,3-Dichloropropene 20 200 60 600 <403 <1.7 <0.65 <429 <1.6 <1.7 <1.7 <2.7 <132

Notes: XXX = designates concentrations that exceed MPCA's Intrusion Screening Values for vapor intrusion (Residential criteria)XXX = designates concentrations that exceed MPCA's Intrusion Screening Values for vapor intrusion (Industrial criteria)XXX = designates concentrations that exceed 10X MPCA's ISVs for vapor instrusion (residential criteria)XXX = designates concentrations that exceed 10X MPCA's ISVs for vapor instrusion (industrial criteria)XXX = designates detection limits that exceed MPCA's Intrusion Screening Values for vapor intrusion (residential criteria)XXX = designates detection limits that exceed 10X MPCA's ISVs for vapor instrusion (industrial criteria)ISV = Intrusion Screening Values

MPCA = Minnesota Pollution Control AgencyNE = no criteria

XXX = Detected Concentration

Minnesota Pollution Control Agency's Risk-Intrusion Screening Values for Vapor

Intrusion (ug/m3)Analyte

Abbreviated Boring No., Sample No. (with Depth in Feet bgs), and Date Collected

Reported Concentrations (ug/m3)

$T

$T

$T

#S!#

!#

#S

#S

#S

#S!#

#S

!##S

WW

WW

WW

WW

WW

WW

W

WW

WW

WW

WW

WW

WW

WW

WW

W

EOEO

EOEO

EOEO

EOEO

EOEO

EOEO

EO

EO

EUEU

EUEU

EU

DRO 1000 ppmB-1

DRO 9.6 ppmGRO 44 ppmPID 364

B-2

DRO 32 ppmGRO 140 ppm

B-3Wate

r St

B-2

B-3

Tank 1

Tank 2

Tank 3

Tank 4Main St

B-1

SG-4

SP-1

SP-2

SP-6SP-7

SP-4SG-3

SP-3

SG-1

SP-5

SG-2

B'

B

A'

A

Map Projection: NAD 1983 UTM Zone 15 NBasemap: Google Earth Image

Drawn By: Date Drawn/Revised: Project No.8/8/2014

µHampton

M I N N E S O TA

S.G. J140203

!#

0 20 40Feet

0 5 10Meters

1 Inch = 20 feet

Y:\Cl

ients\

MPCA

\L_18

939_

Main_

&_Lin

coln_

Stree

t\Map

Docs

\J140

203 F

IG 2

Site M

ap.m

xdFigure 2Site Map

L #18939 Hampton Utility ProjectHampton, MN

Parcel Boundary

EU Underground Electric

Overhead ElectricEOSoil Gas!#

Soil Boring#S

Water LineW

Cross Section B-B'

Cross Section A-A'

Abandoned Tank In Place

Excavated Tank

Bottom Soil Sample$T

Tank Basin

B <0.0223T <0.0557E <0.0557X <0.167

GRO <11.2DRO <9.6

SP-4 (13-15)6/5/2014

B <0.0230T <0.0574E <0.0574X <0.172

GRO <11.6DRO <9.7

6/5/2014SP-7 (13-15)

B ‐ Benzene µg/L or mg/kgT ‐ Toluene µg/L or mg/kgE ‐ Ethylbenzene µg/L or mg/kgX ‐ Total Xylenes µg/L or mg/kgMTBE ‐ Methyl Tertiary Butyl Ether µg/L or mg/kgGRO ‐ Gasoline‐Range Organics µg/L or mg/kgDRO ‐ Diesel‐Range Organics µg/L or mg/kg

LocationDate Sampled

B <0.060T <0.060E <0.060X <0.18

GRO <12.1DRO <9.0

SP-2 (3-5)6/5/2014

B <0.063T <0.063E <0.063X <0.19

GRO <12.7DRO <9.1

SP-6 (7-9)6/5/2014

B <0.061T <0.061E <0.061X <0.18

GRO 18.0DRO 54.5

SP-2 / D-1 (9-10)6/5/2014

B <1.0T <1.0E <1.0X <3.0

GRO 122DRO 29,900

SP-2 / D-16/5/2014

B <1.0T <1.0E <1.0X <3.0

GRO 2,780DRO 382,000

SP-66/5/2014

Shaded - Result exceeds the lab reporting limit

Bold - Result exceeds the MDH HRLSoil analytical results shown in mg/kg

Groundwater analytical shown in µg/L

< - Less than Report Limit

GRO 140DRO 32

B-3 (6)11/1/2012

B <0.063T <0.063E <0.063X <0.19

GRO <12.6DRO <9.5

6/5/2014SP-5 (7-9)

B <0.060T <0.060E <0.060X <0.18

GRO <12.1DRO <9.0

SP-2 (3-5)6/5/2014

B <0.058T <0.058E <0.058X <0.17

GRO <11.6DRO <8.2

SP-3 (5-7)6/5/2014

B ‐ Benzene µg/L or mg/kgT ‐ Toluene µg/L or mg/kgE ‐ Ethylbenzene µg/L or mg/kgX ‐ Total Xylenes µg/L or mg/kgMTBE ‐ Methyl Tertiary Butyl Ether µg/L or mg/kgGRO ‐ Gasoline‐Range Organics µg/L or mg/kgDRO ‐ Diesel‐Range Organics µg/L or mg/kg

LocationDate Sampled

B <0.064T <0.064E <0.064X <0.190

GRO <12.7DRO 40.6

SP-1 (4-6)6/5/2014

B <0.061T <0.061E <0.061X <0.18

GRO 18.0DRO 54.5

SP-2 / D-1 (9-10)6/5/2014

B <1.0T <1.0E <1.0X <3.0

GRO <100DRO 447

SP-16/5/2014

B <1.0T <1.0E <1.0X <3.0

GRO <100DRO 126

SP-36/5/2014

B <1.0T <1.0E <1.0X <3.0

GRO 122DRO 29,900

SP-2 / D-16/5/2014

B <1.0T <1.0E <1.0X <3.0

GRO <100DRO <108

SP-56/5/2014

Shaded - Result exceeds the lab reporting limit

Bold - Result exceeds the MDH HRLSoil analytical results shown in mg/kg

Groundwater analytical shown in µg/L

< - Less than Report Limit

GRO 140DRO 32

B-3 (6)11/1/2012

GRO <6.0DRO 1000

B-1 (6)11/1/2012GRO 44

DRO 9.6

B-2 (6)11/1/2012

SP-1 (4-6) 4-6 6/5/2014 <0.064 <0.064 <0.064 <0.19 <0.32 <12.7 40.6 Fixed

SP-2 (9-10) 9-10 6/5/2014 <0.061 <0.061 <0.061 <0.18 <0.30 18.0 54.5 Fixed

D-1 (SP-2) 9-10 6/5/2014 <0.057 <0.057 <0.057 <0.17 <0.28 <11.4 167 Fixed

SP-2 (3-5) 3-5 6/5/2014 <0.060 <0.060 <0.060 <0.18 <0.30 <12.1 <9.0 Fixed

SP-3 (5-7) 5-7 6/5/2014 <0.058 <0.058 <0.058 <0.17 <0.29 <11.6 <8.2 Fixed

SP-4 (13-15) 13-15 6/5/2014 <0.0223 <0.0557 <0.0557 <0.167 <0.0557 <11.2 <9.6 Fixed

SP-5 (7-9) 7-9 6/5/2014 <0.063 <0.063 <0.063 <0.19 <0.32 <12.6 <9.5 Fixed

SP-6 (7-9) 7-9 6/5/2014 <0.063 <0.063 <0.063 <0.19 <0.32 <12.7 <9.1 Fixed

SP-6 (11-13) 11-13 6/5/2014 <0.060 <0.060 <0.060 <0.18 <0.30 24.3 95.1 Fixed

SP-7 (13-15) 13-15 6/5/2014 <0.0230 <0.0574 <0.0574 <0.172 <0.0574 <11.6 <9.7 Fixed

TRIP BLANK SOIL

--- 6/5/2014 <0.0200 <0.0500 <0.0500 <0.150 <0.0500 <10.0 NA Fixed

Adjacent to 23290 Main StreetHampton, Minnesota

ANALYTICAL RESULTS OF SOIL SAMPLES

TABLE 3

Toluene (mg/kg)

Benzene (mg/kg)

GRO (mg/kg)

Ethyl-benzene (mg/kg)

MTBE (mg/kg)

Hampton Utility Project

Sample Depth

(ft bgs) Lab TypeDRO

(mg/kg)Boring IDSample

Date

Total Xylenes (mg/kg)

Ethyl- Total

Sample Sample Benzene Toluene Benzene Xylenes MTBE GRO DROSample Date Depth (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) Lab Type

SP-1 6/5/2014 6-15 <1.0 <1.0 <1.0 <3.0 <1.0 <100 447 Fixed

SP-2 6/5/2014 6-12 <1.0 <1.0 <1.0 <3.0 <1.0 107 29,900 Fixed

D-1 (SP-2) 6/5/2014 6-12 <1.0 <1.0 <1.0 <3.0 <1.0 122 1,450 Fixed

SP-3 6/5/2014 9-12 <1.0 <1.0 <1.0 <3.0 <1.0 <100 126 Fixed

SP-5 6/5/2014 6-13 <1.0 <1.0 <1.0 <3.0 <1.0 <100 <108 Fixed

SP-6 6/5/2014 6-14 <1.0 <1.0 <1.0 <3.0 <1.0 2,780 382,000 Fixed

TRIP BLANK WATER 6/5/2014 --- <1.0 <1.0 <1.0 <3.0 <1.0 NA NA Fixed

2 200 50 300 70 NE NE ---

Notes:µg/L - Micrograms per liter MTBE - Methyl tertiary butyl etherGRO - Gasoline-range organicsDRO - Diesel-range organics

ANALYTICAL RESULTS OF WATER SAMPLES COLLECTED FROM BORINGSTABLE 7

Hampton, MinnesotaAdjacent to 23290 Main Street

Hampton Utility Project

HRL1 / HBV

Parameter Units SG-1 SG-2 SG-3 SG-4

6/5/2014 6/5/2014 6/5/2014 6/5/2014

4' 3.5' 4' 3.5'

0.7 1 2.7 4.7

1,1-Dichloroethane μg/m3 <90.3 4.6 51.5 98.6 500 5,000 50,000 1,000 10,000 100,000 NA Fixed

1,1-Dichloroethene (DCE) μg/m3 9.2 <0.61 7.3 11.0 200 2,000 20,000 600 6,000 60,000 NA Fixed

1,1,1-Trichloroethane μg/m3 <2.0 <2.0 <2.0 <2.0 5,000 50,000 500,000 10,000 100,000 1,000,000 140,000 Fixed

1,1,2-Trichloroethane μg/m3 <2.5 <2.5 <2.5 <2.5 0.6 6 60 2 20 200 NA Fixed

1,1,2-Trichlorotrifluoroethane μg/m3 <3.9 <3.9 <3.9 <3.9 30,000 300,000 3,000,000 80,000 800,000 8,000,000 NA Fixed

1,1,2,2-Tetrachloroethane μg/m3 1.7 <1.5 <1.5 <1.5 0.2 2 20 1 10 100 NA Fixed

1,2-Dibromoethane (EDB) μg/m3 <0.84 <0.84 <0.84 <0.84 0.02 0 2 0.06 1 6 NA Fixed

1,2-Dichlorobenzene μg/m3 19.7 1.3 17.4 37.5 200 2,000 20,000 600 6,000 60,000 NA Fixed

1,2-Dichloroethane μg/m3 16.2 <1.2 14.2 169 0.4 4 40 1 10 100 NA Fixed

1,2-Dichloropropane μg/m3 <1.2 <1.2 <1.2 <1.2 4 40 400 10 100 1,000 235 Fixed

1,2,4-Trichlorobenzene μg/m3 <1.8 <1.8 <1.8 <1.8 4 40 400 10 100 1,000 NA Fixed

1,2,4-Trimethylbenzene μg/m3 <1.0 <1.0 <1.0 <1.0 7 70 700 20 200 2,000 NA Fixed

1,3-Butadiene μg/m3 <1.9 <1.9 <1.9 <1.9 0.3 3 30 1 10 100 NA Fixed

1,3-Dichlorobenzene μg/m3 3.0 <0.79 <0.79 1.1 NA NA NA NA NA NA NA Fixed

1,3,5-Trimethylbenzene μg/m3 3.4 <1.3 3.5 3.5 6 60 600 20 200 2,000 NA Fixed

1,4-Dichlorobenzene μg/m3 <3.2 <3.2 <3.2 <3.2 60 600 6,000 200 2,000 20,000 12,000 Fixed

2-Butanone (MEK) μg/m3 <2.9 <2.9 <2.9 <2.9 5,000 50,000 500,000 10,000 100,000 1,000,000 10,000 Fixed

2-Hexanone μg/m3 <2.3 <2.3 <2.3 <2.3 NA NA NA NA NA NA NA Fixed

2-Propanol (isopropyl alcohol) μg/m3 <2.3 <2.3 <2.3 <2.3 7,000 70,000 700,000 20,000 200,000 2,000,000 3,200 Fixed

4-Ethyltoluene μg/m3 <2.3 <2.3 <2.3 <2.3 NA NA NA NA NA NA NA Fixed

4-Methyl-2-pentanone (MIBK) μg/m3 3.4 <1.9 2.8 2.9 3,000 30,000 300,000 8,000 80,000 800,000 NA Fixed

Acetone μg/m3 <1.5 <1.5 <1.5 <1.5 31,000 310,000 3,100,000 87,000 870,000 8,700,000 63,000 Fixed

Benzene μg/m3 <0.77 <0.77 <0.77 <0.77 4.5 45 450 13 130 1,300 1,000 Fixed

Benzyl Chloride μg/m3 <1.5 <1.5 <1.5 <1.5 1 10 100 3 30 300 240 Fixed

Bromodichloromethane μg/m3 <1.5 <1.5 <1.5 <1.5 NA NA NA NA NA NA NA Fixed

Bromoform μg/m3 <1.5 <1.5 <1.5 <1.5 9 90 900 30 300 3,000 NA Fixed

Bromomethane (Methyl Bromide) μg/m3 <1.8 <1.8 <1.8 <1.8 5 50 500 10 100 1,000 2,000 Fixed

Carbon disulfide μg/m3 <1.7 <1.7 <1.7 <1.7 700 7,000 70,000 2,000 20,000 200,000 6,000 Fixed

Carbon tetrachloride μg/m3 <1.7 <1.7 <1.7 <1.7 0.7 7 70 2 20 200 1,900 Fixed

Chlorobenzene μg/m3 <2.7 <2.7 <2.7 <2.7 50 500 5,000 100 1,000 10,000 NA Fixed

Chloroethane (Ethyl chloride) μg/m3 43.4 <1.8 15.4 19.9 10,000 100,000 1,000,000 30,000 300,000 3,000,000 100,000 Fixed

Chloroform μg/m3 <1.4 <1.4 <1.4 <1.4 100 1,000 10,000 300 3,000 30,000 150 Fixed

Chloromethane (Methyl chloride) μg/m3 16.0 <1.6 7.2 234 90 900 9,000 300 3,000 30,000 1,000 Fixed

cis-1,2-Dichloroethene μg/m3 8.4 <1.9 3.2 3.7 NA NA NA NA NA NA NA Fixed

cis-1,3-Dichloropropene μg/m3 10.0 <1.6 8.3 7.1 20 200 2,000 60 600 6,000 NA Fixed

Cyclohexane μg/m3 <4.1 <4.1 <4.1 <4.1 6,000 60,000 600,000 20,000 200,000 2,000,000 NA Fixed

Dibromochloromethane μg/m3 11.7 <1.3 14.5 9.5 NA NA NA NA NA NA NA Fixed

Dichlorodifluoromethane (Freon 12) μg/m3 <1.6 <1.6 <1.6 7.3 200 2,000 20,000 600 6,000 60,000 NA Fixed

Dichlorotetrafluoroethane μg/m3 14.7 7.4 20.4 7.3 NA NA NA NA NA NA NA Fixed

Ethanol μg/m3 3.3 <1.6 1.7 3.7 15,000 150,000 1,500,000 42,000 420,000 4,200,000 180,000 Fixed

Ethyl acetate μg/m3 <1.4 <1.4 <1.4 <1.4 3,000 30,000 300,000 8,000 80,000 800,000 40,000 Fixed

Ethylbenzene μg/m3 <5.0 <5.0 <5.0 <5.0 1,000 10,000 100,000 3,000 30,000 300,000 10,000 Fixed

Hexachloro-1,3-butadiene μg/m3 5.5 <4.7 11.4 12.9 0.5 5 50 1 10 100 NA Fixed

m&p-Xylene μg/m3 56.5 3.5 134 69.1 100 1,000 10,000 300 3,000 30,000 43,000 Fixed

Methyl-tert-butyl ether (MTBE) μg/m3 2.3 <1.6 1.7 7.7 3,000 30,000 300,000 8,000 80,000 800,000 7,000 Fixed

Methylene Chloride (Dichloromethane) μg/m3 <1.3 <1.3 <1.3 <1.3 20 200 2,000 60 600 6,000 10,000 Fixed

n-Heptane μg/m3 1.6 <1.3 <1.3 <1.3 NA NA NA NA NA NA NA Fixed

n-Hexane μg/m3 <1.1 <1.1 <1.1 <1.1 2,000 20,000 200,000 6,000 60,000 600,000 NA Fixed

Naphthalene μg/m3 55.7 1.5 27.9 26.6 9 90 900 30 300 3,000 NA Fixed

o-Xylene μg/m3 <2.8 <2.8 <2.8 <2.8 100 1,000 10,000 300 3,000 30,000 43000 Fixed

Propylene (Methylethylene) μg/m3 <2.1 <2.1 <2.1 <2.1 3,000 30,000 300,000 8,000 80,000 800,000 NA Fixed

Styrene μg/m3 <1.0 <1.0 <1.0 <1.0 1,000 10,000 100,000 3,000 30,000 300,000 21,000 Fixed

Tetrachloroethylene (PCE) μg/m3 <1.0 <1.0 <1.0 <1.0 20 200 2,000 60 600 6,000 20,000 Fixed

Tetrahydrofuran μg/m3 3.4 <2.1 <2.1 <2.1 NA NA NA NA NA NA NA Fixed

Toluene μg/m3 <3.0 <3.0 <3.0 <3.0 5,000 50,000 500,000 10,000 100,000 1,000,000 37,000 Fixed

trans-1,2-Dichloroethene μg/m3 31.0 <1.9 9.1 9.2 60 600 6,000 200 2,000 20,000 800 Fixed

trans-1,3-Dichloropropene μg/m3 7.6 <1.9 2.4 3.3 20 200 2,000 60 600 6,000 NA Fixed

Trichloroethylene (TCE) μg/m3 11.1 <1.3 7.8 17.3 3 30 300 8 80 800 2,000 Fixed

Trichlorofluoromethane μg/m3 <0.49 <0.49 <0.49 <0.49 700 7,000 70,000 2,000 20,000 200,000 NA Fixed

Vinyl acetate μg/m3 89.1 <3.3 38.6 502 200 2,000 20,000 600 6,000 60,000 NA Fixed

Vinyl chloride μg/m3 24.8 <1.6 9.7 185 1 10 100 3 30 300 180,000 Fixed

Notes:NA - Not establishedAll results are in micrograms per cubic meter (µg/m3)

ISV - Intrusion Screening Value< - Less than the laboratory Reporting Limit (RL)Bold - Result exceeds the Residential ISVYellow Shading - Result exceed 10X Residential ISVPeach Shading - Result exceeds 100 times the Residential ISV

Grey Shading - Result exceeds the Industrial ISVGreen Shading - Result exceed 10 times the Industrial ISVBlue Shading - Result exceeds 100 times the Industrial ISV

Lab Type

PID Reading (ppm)

Residential100X ISVs

(µg/m3)

Industrial

ISVs (µg/m3)

Industrial10X ISVs

(µg/m3)

Hampton, Minnesota

DateResidential

10x ISVs

(µg/m3)

TABLE 20SOIL GAS ANALYTICAL RESULTS

Hampton Utility ProjectAdjacent to 23290 Main Street

Acute ISVs

(µg/m3)

ResidentialISVs

(µg/m3)

Industrial100X ISVs

(µg/m3)Depth

Appendix B

Soil Boring Field Logs

Appendix C

Laboratory Analytical Reports

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

RE: 23191225

Minneapolis, MN 554354700 W 77th St

Ms. Julie Sullivan

April 25, 2014

Work Order Number: 1401548

Bach Pham Samantha JaworskiClient Manager II Manager, Organic Chemistry

Barr Engineering Co.

[email protected] [email protected]

Enclosed are the results of analyses for samples received by the laboratory on 04/14/14. If you have any questions concerning this report, please feel free to contact me.

Samples will not be retained by LEGEND once the analyses are completed.

All internal quality assurance met the method requirements unless otherwise noted in the case narrative. Additionally, all samples were received in acceptable condition unless otherwise noted.

For the tentatively identified compounds (TICs), a computer generated library search was done comparing the spectra of theunknown compounds with spectra contained in the NIST (NBS) and Wiley reference libraries. A visual comparison was made ofeach unknown compound and the best library match. Quantitation was based on the response of the nearest internal standard.Unidentified peaks were quantified using 100 as the molecular weight. Both the identification of specific compounds and thequantities given should be considered approximations.

Chromatograms are included for samples containing detections.

MDH Accreditation #027-123-295

Prepared by,LEGEND TECHNICAL SERVICES, INC

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


Project:

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23191225

Ms. Julie SullivanMinneapolis, MN 55435 04/25/14Date Reported:


Work Order #: 1401548

Sample ID Laboratory ID Date Sampled

ANALYTICAL REPORT FOR SAMPLES

Date ReceivedMatrix

VP-1_4-6 1401548-01 Air 04/11/14 12:23 04/14/14 12:05

VP-2_6-8 1401548-02 Air 04/11/14 09:51 04/14/14 12:05

VP-3_4-6 1401548-03 Air 04/11/14 10:49 04/14/14 12:05

VP-4_4-6 1401548-04 Air 04/11/14 15:20 04/14/14 12:05

VP-5_4-6 1401548-05 Air 04/11/14 16:46 04/14/14 12:05

VP-6_6-8 1401548-06 Air 04/11/14 17:43 04/14/14 12:05

VP-7_3.5-4.5 1401548-07 Air 04/11/14 13:16 04/14/14 12:05

VP-8_4-6 1401548-08 Air 04/11/14 16:06 04/14/14 12:05

Case Narrative:

%RPD results for n-Hexane in the TO-15 extraction batch B4D1806-DUP1 exceeded method limits.

The total hydrocarbon pattern was present in the retention time window of 22 to 28 minutes in all the samples.


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VOC - AIRLegend Technical Services, Inc.

Result Analyte (CAS#) RL Units Dilution Batch Prepared Analyzed Method Notes MDL

VP-1_4-6 (1401548-01) Air Received:04/14/14 12:05 Sampled:04/11/14 12:23

TO-15(M)04/15/14 04/15/14 ug/m³ B4D1806<2.7 11,1,1-Trichloroethane (71-55-6) 0.122.7

"" "ug/m³ "<3.4 11,1,2,2-Tetrachloroethane (79-34-5) 0.163.4

"" "ug/m³ "<2.7 11,1,2-Trichloroethane (79-00-5) 0.122.7

"" "ug/m³ "<2.0 11,1-Dichloroethane (75-34-3) 0.0652.0

"" "ug/m³ "<2.0 11,1-Dichloroethene (75-35-4) 0.0872.0

"" "ug/m³ "<3.7 11,2,4-Trichlorobenzene (120-82-1) 0.123.7

" " "ug/m³ "31 11,2,4-Trimethylbenzene (95-63-6) 0.0641.0

"" "ug/m³ "<3.8 11,2-Dibromoethane (106-93-4) 0.123.8

"" "ug/m³ "<3.0 11,2-Dichlorobenzene (95-50-1) 0.183.0


"" "ug/m³ "<2.3 11,2-Dichloropropane (78-87-5) 0.0692.3

" " "ug/m³ "8.1 11,3,5-Trimethylbenzene (108-67-8) 0.0641.0

"" "ug/m³ "<1.1 11,3-Butadiene (106-99-0) 0.0731.1



" " "ug/m³ "15 12-Butanone (78-93-3) 0.0681.5

" " "ug/m³ "8.3 14-Ethyltoluene (622-96-8) 0.102.5

" " 04/16/14 ug/m³ "460 27Acetone (67-64-1) 5.132

" " 04/15/14 ug/m³ "5.8 1Benzene (71-43-2) 0.0670.64

"" "ug/m³ "<2.6 1Benzyl chloride (100-44-7) 0.122.6

"" "ug/m³ "<3.4 1Bromodichloromethane (75-27-4) 0.0873.4

"" "ug/m³ "<5.2 1Bromoform (75-25-2) 0.215.2

"" "ug/m³ "<1.9 1Bromomethane (74-83-9) 0.121.9

" " "ug/m³ "5.7 1Carbon disulfide (75-15-0) 0.0341.6

"" "ug/m³ "<3.1 1Carbon tetrachloride (56-23-5) 0.183.1

"" "ug/m³ "<2.3 1Chlorobenzene (108-90-7) 0.0972.3

"" "ug/m³ "<1.3 1Chloroethane (75-00-3) 0.0631.3

"" "ug/m³ "<2.4 1Chloroform (67-66-3) 0.112.4

"" "ug/m³ "<1.0 1Chloromethane (74-87-3) 0.0521.0

"" "ug/m³ "<2.0 1cis-1,2-Dichloroethene (156-59-2) 0.132.0

"" "ug/m³ "<2.3 1cis-1,3-Dichloropropene (10061-01-5) 0.212.3

"" "ug/m³ "<1.7 1Cyclohexane (110-82-7) 0.0691.7

"" "ug/m³ "<4.3 1Dibromochloromethane (124-48-1) 0.144.3

"" "ug/m³ "<2.5 1Dichlorodifluoromethane (75-71-8) 0.112.5

"" "ug/m³ "<3.5 1Dichlorotetrafluoroethane (76-14-2) 0.203.5


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TO-15(M)04/15/14 04/15/14 ug/m³ B4D1806<0.94 1Ethanol (64-17-5) 0.140.94

"" "ug/m³ "<1.8 1Ethyl acetate (141-78-6) 0.141.8

" " "ug/m³ "14 1Ethylbenzene (100-41-4) 0.0830.87

"" "ug/m³ "<5.3 1Hexachlorobutadiene (87-68-3) 0.315.3

" " "ug/m³ "5.0 1Isopropyl alcohol (67-63-0) 0.0741.2

" " "ug/m³ "66 1m,p-Xylene (136777-61-2) 0.171.7

"" "ug/m³ "<2.0 1Methyl butyl ketone (591-78-6) 0.0942.0

"" "ug/m³ "<2.0 1Methyl isobutyl ketone (108-10-1) 0.242.0

"" "ug/m³ "<1.8 1Methyl tert-butyl ether (1634-04-4) 0.0871.8

"" "ug/m³ "<1.7 1Methylene chloride (75-09-2) 0.161.7

" " "ug/m³ "4.9 1Naphthalene (91-20-3) 0.0892.6

" " "ug/m³ "11 1n-Heptane (142-82-5) 0.0492.0

" " "ug/m³ "6.3 1n-Hexane (110-54-3) 0.0881.8

" " "ug/m³ "25 1o-Xylene (95-47-6) 0.100.87

" " 04/16/14 ug/m³ "82 27Propylene (115-07-1) 1.223

"" 04/15/14 ug/m³ "<2.1 1Styrene (100-42-5) 0.0512.1

" " "ug/m³ "17 1Tetrachloroethene (127-18-4) 0.0883.4

"" "ug/m³ "<1.5 1Tetrahydrofuran (109-99-9) 0.0711.5

" " "ug/m³ "48 1Toluene (108-88-3) 0.0720.75

"" "ug/m³ "<2.0 1trans-1,2-Dichloroethene (156-60-5) 0.0872.0

"" "ug/m³ "<2.3 1trans-1,3-Dichloropropene (10061-02-6) 0.0682.3

"" "ug/m³ "<1.1 1Trichloroethene (79-01-6) 0.111.1

"" "ug/m³ "<2.8 1Trichlorofluoromethane (75-69-4) 0.112.8

"" "ug/m³ "<3.8 1Trichlorotrifluoroethane (76-13-1) 0.193.8

"" "ug/m³ "<1.8 1Vinyl acetate (108-05-4) 0.0531.8

"" "ug/m³ "<0.51 1Vinyl chloride (75-01-4) 0.0510.51











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TO-15(M)04/15/14 04/15/14 ug/m³ B4D1806<3.0 11,2-Dichlorobenzene (95-50-1) 0.183.0




" " "ug/m³ "9.2 11,3-Butadiene (106-99-0) 0.0731.1



" " "ug/m³ "12 12-Butanone (78-93-3) 0.0681.5


" " 04/16/14 ug/m³ "110 5Acetone (67-64-1) 0.956.0

" " 04/15/14 ug/m³ "6.5 1Benzene (71-43-2) 0.0670.64



"" "ug/m³ "<5.2 1Bromoform (75-25-2) 0.215.2






"" "ug/m³ "<2.4 1Chloroform (67-66-3) 0.112.4

" " "ug/m³ "1.5 1Chloromethane (74-87-3) 0.0521.0



" " "ug/m³ "4.7 1Cyclohexane (110-82-7) 0.0691.7




" " "ug/m³ "7.8 1Ethanol (64-17-5) 0.140.94





" " "ug/m³ "48 1m,p-Xylene (136777-61-2) 0.171.7




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TO-15(M)04/15/14 04/15/14 ug/m³ B4D1806<1.8 1Methyl tert-butyl ether (1634-04-4) 0.0871.8


" " "ug/m³ "3.7 1Naphthalene (91-20-3) 0.0892.6

" " "ug/m³ "8.9 1n-Heptane (142-82-5) 0.0492.0

" " "ug/m³ "5.4 1n-Hexane (110-54-3) 0.0881.8

" " "ug/m³ "17 1o-Xylene (95-47-6) 0.100.87

" " 04/16/14 ug/m³ "80 5Propylene (115-07-1) 0.224.3

"" 04/15/14 ug/m³ "<2.1 1Styrene (100-42-5) 0.0512.1



" " "ug/m³ "45 1Toluene (108-88-3) 0.0720.75





















" " "ug/m³ "9.4 11,3-Butadiene (106-99-0) 0.0731.1



" " "ug/m³ "19 12-Butanone (78-93-3) 0.0681.5


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B4D1806 04/15/14 04/15/14 ug/m³ TO-15(M)4.2 14-Ethyltoluene (622-96-8) 0.102.5

" " 04/16/14 ug/m³ "110 5Acetone (67-64-1) 0.956.0

" " 04/15/14 ug/m³ "19 1Benzene (71-43-2) 0.0670.64



"" "ug/m³ "<5.2 1Bromoform (75-25-2) 0.215.2






"" "ug/m³ "<2.4 1Chloroform (67-66-3) 0.112.4




" " "ug/m³ "5.3 1Cyclohexane (110-82-7) 0.0691.7




" " "ug/m³ "3.8 1Ethanol (64-17-5) 0.140.94


" " "ug/m³ "7.8 1Ethylbenzene (100-41-4) 0.0830.87



" " "ug/m³ "30 1m,p-Xylene (136777-61-2) 0.171.7





" " "ug/m³ "3.7 1Naphthalene (91-20-3) 0.0892.6

" " "ug/m³ "9.4 1n-Heptane (142-82-5) 0.0492.0

" " "ug/m³ "8.3 1n-Hexane (110-54-3) 0.0881.8

" " "ug/m³ "11 1o-Xylene (95-47-6) 0.100.87

" " 04/16/14 ug/m³ "92 5Propylene (115-07-1) 0.224.3

"" 04/15/14 ug/m³ "<2.1 1Styrene (100-42-5) 0.0512.1


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B4D1806 04/15/14 04/15/14 ug/m³ TO-15(M)7.1 1Tetrachloroethene (127-18-4) 0.0883.4


" " "ug/m³ "36 1Toluene (108-88-3) 0.0720.75





















" " "ug/m³ "23 11,3-Butadiene (106-99-0) 0.0731.1



" " "ug/m³ "20 12-Butanone (78-93-3) 0.0681.5


" " 04/16/14 ug/m³ "96 15Acetone (67-64-1) 2.818

" " 04/15/14 ug/m³ "18 1Benzene (71-43-2) 0.0670.64



"" "ug/m³ "<5.2 1Bromoform (75-25-2) 0.215.2




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TO-15(M)04/15/14 04/15/14 ug/m³ B4D1806<3.1 1Carbon tetrachloride (56-23-5) 0.183.1



"" "ug/m³ "<2.4 1Chloroform (67-66-3) 0.112.4




" " "ug/m³ "7.3 1Cyclohexane (110-82-7) 0.0691.7




" " "ug/m³ "8.1 1Ethanol (64-17-5) 0.140.94

" " "ug/m³ "4.3 1Ethyl acetate (141-78-6) 0.141.8



" " "ug/m³ "13 1Isopropyl alcohol (67-63-0) 0.0741.2

" " "ug/m³ "41 1m,p-Xylene (136777-61-2) 0.171.7

" " "ug/m³ "3.9 1Methyl butyl ketone (591-78-6) 0.0942.0

" " "ug/m³ "5.6 1Methyl isobutyl ketone (108-10-1) 0.242.0



" " "ug/m³ "3.9 1Naphthalene (91-20-3) 0.0892.6

" " "ug/m³ "14 1n-Heptane (142-82-5) 0.0492.0

" " "ug/m³ "14 1n-Hexane (110-54-3) 0.0881.8

" " "ug/m³ "15 1o-Xylene (95-47-6) 0.100.87

" " 04/16/14 ug/m³ "160 15Propylene (115-07-1) 0.6813

"" 04/15/14 ug/m³ "<2.1 1Styrene (100-42-5) 0.0512.1



" " "ug/m³ "34 1Toluene (108-88-3) 0.0720.75







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TO-15(M)04/15/14 04/15/14 ug/m³ B4D1806<1.8 1Vinyl acetate (108-05-4) 0.0531.8















" " "ug/m³ "9.8 11,3-Butadiene (106-99-0) 0.0731.1



" " "ug/m³ "11 12-Butanone (78-93-3) 0.0681.5


" " 04/17/14 ug/m³ "86 5Acetone (67-64-1) 0.956.0

" " 04/15/14 ug/m³ "7.6 1Benzene (71-43-2) 0.0670.64



"" "ug/m³ "<5.2 1Bromoform (75-25-2) 0.215.2


"" "ug/m³ "<1.6 1Carbon disulfide (75-15-0) 0.0341.6




"" "ug/m³ "<2.4 1Chloroform (67-66-3) 0.112.4




" " "ug/m³ "4.1 1Cyclohexane (110-82-7) 0.0691.7


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TO-15(M)04/15/14 04/15/14 ug/m³ B4D1806<4.3 1Dibromochloromethane (124-48-1) 0.144.3



" " "ug/m³ "2.9 1Ethanol (64-17-5) 0.140.94





" " "ug/m³ "45 1m,p-Xylene (136777-61-2) 0.171.7





" " "ug/m³ "3.6 1Naphthalene (91-20-3) 0.0892.6

" " "ug/m³ "7.8 1n-Heptane (142-82-5) 0.0492.0

" " "ug/m³ "6.1 1n-Hexane (110-54-3) 0.0881.8

" " "ug/m³ "16 1o-Xylene (95-47-6) 0.100.87

" " 04/17/14 ug/m³ "95 5Propylene (115-07-1) 0.224.3

"" 04/15/14 ug/m³ "<2.1 1Styrene (100-42-5) 0.0512.1



" " "ug/m³ "33 1Toluene (108-88-3) 0.0720.75















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TO-15(M)04/15/14 04/15/14 ug/m³ B4D1806<3.7 11,2,4-Trichlorobenzene (120-82-1) 0.123.7







" " "ug/m³ "22 11,3-Butadiene (106-99-0) 0.0731.1



" " "ug/m³ "11 12-Butanone (78-93-3) 0.0681.5


" " 04/17/14 ug/m³ "44 3Acetone (67-64-1) 0.573.6

" " 04/15/14 ug/m³ "14 1Benzene (71-43-2) 0.0670.64



"" "ug/m³ "<5.2 1Bromoform (75-25-2) 0.215.2






"" "ug/m³ "<2.4 1Chloroform (67-66-3) 0.112.4




" " "ug/m³ "9.2 1Cyclohexane (110-82-7) 0.0691.7




" " "ug/m³ "15 1Ethanol (64-17-5) 0.140.94






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B4D1806 04/15/14 04/15/14 ug/m³ TO-15(M)56 1m,p-Xylene (136777-61-2) 0.171.7





" " "ug/m³ "3.9 1Naphthalene (91-20-3) 0.0892.6

" " "ug/m³ "16 1n-Heptane (142-82-5) 0.0492.0

" " "ug/m³ "14 1n-Hexane (110-54-3) 0.0881.8

" " "ug/m³ "20 1o-Xylene (95-47-6) 0.100.87

" " 04/17/14 ug/m³ "130 15Propylene (115-07-1) 0.6813

"" 04/15/14 ug/m³ "<2.1 1Styrene (100-42-5) 0.0512.1


" " "ug/m³ "1.8 1Tetrahydrofuran (109-99-9) 0.0711.5

" " "ug/m³ "56 1Toluene (108-88-3) 0.0720.75








VP-7_3.5-4.5 (1401548-07) Air Received:04/14/14 12:05 Sampled:04/11/14 13:16













" " "ug/m³ "5.2 11,3-Butadiene (106-99-0) 0.0731.1


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TO-15(M)04/15/14 04/16/14 ug/m³ B4D1806<3.0 11,3-Dichlorobenzene (541-73-1) 0.163.0


" " "ug/m³ "27 12-Butanone (78-93-3) 0.0681.5


" " 04/17/14 ug/m³ "120 5Acetone (67-64-1) 0.956.0

" " 04/16/14 ug/m³ "5.4 1Benzene (71-43-2) 0.0670.64



"" "ug/m³ "<5.2 1Bromoform (75-25-2) 0.215.2






"" "ug/m³ "<2.4 1Chloroform (67-66-3) 0.112.4




" " "ug/m³ "3.5 1Cyclohexane (110-82-7) 0.0691.7




" " "ug/m³ "4.0 1Ethanol (64-17-5) 0.140.94





" " "ug/m³ "39 1m,p-Xylene (136777-61-2) 0.171.7

" " "ug/m³ "2.5 1Methyl butyl ketone (591-78-6) 0.0942.0




" " "ug/m³ "3.8 1Naphthalene (91-20-3) 0.0892.6

" " "ug/m³ "5.8 1n-Heptane (142-82-5) 0.0492.0

" " "ug/m³ "4.4 1n-Hexane (110-54-3) 0.0881.8


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B4D1806 04/15/14 04/16/14 ug/m³ TO-15(M)14 1o-Xylene (95-47-6) 0.100.87

" " 04/17/14 ug/m³ "38 5Propylene (115-07-1) 0.224.3

"" 04/16/14 ug/m³ "<2.1 1Styrene (100-42-5) 0.0512.1



" " "ug/m³ "28 1Toluene (108-88-3) 0.0720.75





















" " "ug/m³ "5.2 11,3-Butadiene (106-99-0) 0.0731.1



" " "ug/m³ "10 12-Butanone (78-93-3) 0.0681.5


" " 04/17/14 ug/m³ "69 5Acetone (67-64-1) 0.956.0

" " 04/16/14 ug/m³ "5.6 1Benzene (71-43-2) 0.0670.64




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TO-15(M)04/15/14 04/16/14 ug/m³ B4D1806<5.2 1Bromoform (75-25-2) 0.215.2






"" "ug/m³ "<2.4 1Chloroform (67-66-3) 0.112.4




" " "ug/m³ "2.9 1Cyclohexane (110-82-7) 0.0691.7




" " "ug/m³ "2.7 1Ethanol (64-17-5) 0.140.94





" " "ug/m³ "39 1m,p-Xylene (136777-61-2) 0.171.7




" " "ug/m³ "2.6 1Methylene chloride (75-09-2) 0.161.7

" " "ug/m³ "4.4 1Naphthalene (91-20-3) 0.0892.6

" " "ug/m³ "5.7 1n-Heptane (142-82-5) 0.0492.0

" " "ug/m³ "3.6 1n-Hexane (110-54-3) 0.0881.8

" " "ug/m³ "15 1o-Xylene (95-47-6) 0.100.87

" " 04/17/14 ug/m³ "33 5Propylene (115-07-1) 0.224.3

"" 04/16/14 ug/m³ "<2.1 1Styrene (100-42-5) 0.0512.1

" " "ug/m³ "9.3 1Tetrachloroethene (127-18-4) 0.0883.4


" " "ug/m³ "26 1Toluene (108-88-3) 0.0720.75




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TO-15(M)04/15/14 04/16/14 ug/m³ B4D1806<1.1 1Trichloroethene (79-01-6) 0.111.1






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TENTATIVELY IDENTIFIED COMPOUNDSLegend Technical Services, Inc.



B4D1806 04/15/14 04/15/14 ug/m³ T-1TO-15(M)2600 11-Undecene, 4-methyl- (74630-39-0)

" " "ug/m³ T-1"1200 1Decane, 2,6,6-trimethyl- (62108-24-1)

" " "ug/m³ T-1"3600 1Dodecane, 2,6,11-trimethyl- (31295-56-4)

" " "ug/m³ T-1"5600 1Dodecane, 4-methyl- (6117-97-1)

" " "ug/m³ T-1"3000 1Heptane, 3,3-dimethyl- (4032-86-4)

" " "ug/m³ T-1"3500 1Hexane, 3,3-dimethyl- (563-16-6)

" " "ug/m³ T-1"2300 1Nonane, 3-methyl-5-propyl- (31081-18-2)

" " "ug/m³ T-1"2300 1Octane, 2,2-dimethyl- (15869-87-1)

" " "ug/m³ T-1"3700 1Octane, 2,6,6-trimethyl- (54166-32-4)

" " "ug/m³ T-1"2200 1Pentane, 2,2,4-trimethyl- (540-84-1)






" " "ug/m³ T-1"1900 1Heptane, 2,2,4,6,6-pentamethyl- (13475-82-6)



" " "ug/m³ T-1"1700 1Nonane, 3,7-dimethyl- (17302-32-8)
















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Result Units LevelSpike

ResultSource

%REC%RECLimits %RPD

%RPDLimit Notes Analyte

VOC - AIR - Quality ControlLegend Technical Services, Inc.

RL MDL

Batch B4D1806 - TO-15

Blank (B4D1806-BLK1) Prepared & Analyzed: 04/15/14

1,1,1-Trichloroethane ug/m³< 2.7 2.7 0.12

1,1,2,2-Tetrachloroethane ug/m³< 3.4 3.4 0.16

1,1,2-Trichloroethane ug/m³< 2.7 2.7 0.12

1,1-Dichloroethane ug/m³< 2.0 2.0 0.065

1,1-Dichloroethene ug/m³< 2.0 2.0 0.087

1,2,4-Trichlorobenzene ug/m³< 3.7 3.7 0.12

1,2,4-Trimethylbenzene ug/m³< 1.0 1.0 0.064

1,2-Dibromoethane ug/m³< 3.8 3.8 0.12

1,2-Dichlorobenzene ug/m³< 3.0 3.0 0.18

1,2-Dichloroethane ug/m³< 2.0 2.0 0.085

1,2-Dichloropropane ug/m³< 2.3 2.3 0.069

1,3,5-Trimethylbenzene ug/m³< 1.0 1.0 0.064

1,3-Butadiene ug/m³< 1.1 1.1 0.073



2-Butanone ug/m³< 1.5 1.5 0.068

4-Ethyltoluene ug/m³< 2.5 2.5 0.10

Acetone ug/m³< 1.2 1.2 0.19

Benzene ug/m³< 0.64 0.64 0.067

Benzyl chloride ug/m³< 2.6 2.6 0.12

Bromodichloromethane ug/m³< 3.4 3.4 0.087

Bromoform ug/m³< 5.2 5.2 0.21

Bromomethane ug/m³< 1.9 1.9 0.12

Carbon disulfide ug/m³< 1.6 1.6 0.034

Carbon tetrachloride ug/m³< 3.1 3.1 0.18

Chlorobenzene ug/m³< 2.3 2.3 0.097

Chloroethane ug/m³< 1.3 1.3 0.063

Chloroform ug/m³< 2.4 2.4 0.11

Chloromethane ug/m³< 1.0 1.0 0.052

cis-1,2-Dichloroethene ug/m³< 2.0 2.0 0.13

cis-1,3-Dichloropropene ug/m³< 2.3 2.3 0.21

Cyclohexane ug/m³< 1.7 1.7 0.069

Dibromochloromethane ug/m³< 4.3 4.3 0.14

Dichlorodifluoromethane ug/m³< 2.5 2.5 0.11

Dichlorotetrafluoroethane ug/m³< 3.5 3.5 0.20

Ethanol ug/m³< 0.94 0.94 0.14

Ethyl acetate ug/m³< 1.8 1.8 0.14

Ethylbenzene ug/m³< 0.87 0.87 0.083

Hexachlorobutadiene ug/m³< 5.3 5.3 0.31

Isopropyl alcohol ug/m³< 1.2 1.2 0.074


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ResultSource

%REC%RECLimits %RPD



RL MDL



m,p-Xylene ug/m³< 1.7 1.7 0.17

Methyl butyl ketone ug/m³< 2.0 2.0 0.094

Methyl isobutyl ketone ug/m³< 2.0 2.0 0.24

Methyl tert-butyl ether ug/m³< 1.8 1.8 0.087

Methylene chloride ug/m³< 1.7 1.7 0.16

Naphthalene ug/m³< 2.6 2.6 0.089

n-Heptane ug/m³< 2.0 2.0 0.049

n-Hexane ug/m³< 1.8 1.8 0.088

o-Xylene ug/m³< 0.87 0.87 0.10

Propylene ug/m³< 0.86 0.86 0.045

Styrene ug/m³< 2.1 2.1 0.051

Tetrachloroethene ug/m³< 3.4 3.4 0.088

Tetrahydrofuran ug/m³< 1.5 1.5 0.071

Toluene ug/m³< 0.75 0.75 0.072

trans-1,2-Dichloroethene ug/m³< 2.0 2.0 0.087

trans-1,3-Dichloropropene ug/m³< 2.3 2.3 0.068

Trichloroethene ug/m³< 1.1 1.1 0.11

Trichlorofluoromethane ug/m³< 2.8 2.8 0.11

Trichlorotrifluoroethane ug/m³< 3.8 3.8 0.19

Vinyl acetate ug/m³< 1.8 1.8 0.053

Vinyl chloride ug/m³< 0.51 0.51 0.051

LCS (B4D1806-BS1) Prepared & Analyzed: 04/15/14

1,1,1-Trichloroethane ug/m³ 54.6 70-13011562.7 2.7 0.12

1,1,2,2-Tetrachloroethane ug/m³ 68.6 70-13011176.2 3.4 0.16

1,1,2-Trichloroethane ug/m³ 54.6 70-13012065.5 2.7 0.12

1,1-Dichloroethane ug/m³ 40.5 70-13010341.7 2.0 0.065

1,1-Dichloroethene ug/m³ 39.6 70-13098.439.0 2.0 0.087

1,2,4-Trichlorobenzene ug/m³ 74.2 70-13011383.9 3.7 0.12

1,2,4-Trimethylbenzene ug/m³ 49.2 70-13011958.5 1.0 0.064

1,2-Dibromoethane ug/m³ 76.8 70-13011689.1 3.8 0.12

1,2-Dichlorobenzene ug/m³ 60.1 70-13011166.7 3.0 0.18

1,2-Dichloroethane ug/m³ 40.5 70-13011747.4 2.0 0.085

1,2-Dichloropropane ug/m³ 46.2 70-13011553.1 2.3 0.069

1,3,5-Trimethylbenzene ug/m³ 49.2 70-13011556.5 1.0 0.064

1,3-Butadiene ug/m³ 22.1 70-13011224.8 1.1 0.073



2-Butanone ug/m³ 29.5 70-13010029.5 1.5 0.068

4-Ethyltoluene ug/m³ 49.2 70-13011657.0 2.5 0.10


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ResultSource

%REC%RECLimits %RPD



RL MDL



Acetone ug/m³ 23.8 70-13010424.7 1.2 0.19

Benzene ug/m³ 31.9 70-13011235.8 0.64 0.067

Benzyl chloride ug/m³ 51.8 70-13011660.1 2.6 0.12

Bromodichloromethane ug/m³ 67.0 70-13011879.1 3.4 0.087

Bromoform ug/m³ 103 70-130115119 5.2 0.21

Bromomethane ug/m³ 38.8 70-13010340.0 1.9 0.12

Carbon disulfide ug/m³ 31.1 70-13099.831.1 1.6 0.034

Carbon tetrachloride ug/m³ 62.9 70-13011371.1 3.1 0.18

Chlorobenzene ug/m³ 46.0 70-13011050.6 2.3 0.097

Chloroethane ug/m³ 26.4 70-13010327.2 1.3 0.063

Chloroform ug/m³ 48.8 70-13011757.1 2.4 0.11

Chloromethane ug/m³ 20.6 70-13010621.9 1.0 0.052

cis-1,2-Dichloroethene ug/m³ 39.6 70-13010240.4 2.0 0.13

cis-1,3-Dichloropropene ug/m³ 45.4 70-13011049.9 2.3 0.21

Cyclohexane ug/m³ 34.4 70-13010636.5 1.7 0.069

Dibromochloromethane ug/m³ 85.2 70-13011799.7 4.3 0.14

Dichlorodifluoromethane ug/m³ 49.5 70-13010149.9 2.5 0.11

Dichlorotetrafluoroethane ug/m³ 69.9 70-13010472.7 3.5 0.20

Ethanol ug/m³ 18.8 70-13010018.8 0.94 0.14

Ethyl acetate ug/m³ 36.0 70-13010136.4 1.8 0.14

Ethylbenzene ug/m³ 43.4 70-13011549.9 0.87 0.083

Hexachlorobutadiene ug/m³ 107 70-130111118 5.3 0.31

Isopropyl alcohol ug/m³ 24.6 70-13010124.8 1.2 0.074

m,p-Xylene ug/m³ 86.8 70-130117102 1.7 0.17

Methyl butyl ketone ug/m³ 41.0 70-13011446.7 2.0 0.094

Methyl isobutyl ketone ug/m³ 41.0 70-13011446.7 2.0 0.24

Methyl tert-butyl ether ug/m³ 36.1 70-13096.834.9 1.8 0.087

Methylene chloride ug/m³ 34.7 70-13010335.8 1.7 0.16

Naphthalene ug/m³ 54.5 70-13011160.3 2.6 0.089

n-Heptane ug/m³ 41.0 70-13011346.3 2.0 0.049

n-Hexane ug/m³ 35.2 70-13097.534.4 1.8 0.088

o-Xylene ug/m³ 43.4 70-13011650.4 0.87 0.10

Propylene ug/m³ 17.2 70-13010818.6 0.86 0.045

Styrene ug/m³ 42.6 70-13012051.1 2.1 0.051

Tetrachloroethene ug/m³ 67.8 70-13011074.6 3.4 0.088

Tetrahydrofuran ug/m³ 29.5 70-13010831.9 1.5 0.071

Toluene ug/m³ 37.7 70-13011443.0 0.75 0.072

trans-1,2-Dichloroethene ug/m³ 39.6 70-13010340.8 2.0 0.087

trans-1,3-Dichloropropene ug/m³ 45.4 70-13011351.3 2.3 0.068

Trichloroethene ug/m³ 53.7 70-13011461.3 1.1 0.11


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ResultSource

%REC%RECLimits %RPD



RL MDL



Trichlorofluoromethane ug/m³ 56.2 70-13010659.6 2.8 0.11

Trichlorotrifluoroethane ug/m³ 76.6 70-13010076.6 3.8 0.19

Vinyl acetate ug/m³ 35.2 70-13010336.3 1.8 0.053

Vinyl chloride ug/m³ 25.6 70-13093.023.8 0.51 0.051

Duplicate (B4D1806-DUP1) Prepared & Analyzed: 04/15/14 Source: 1401548-01

1,1,1-Trichloroethane ug/m³ 25NA< 2.7 <2.72.7 0.12

1,1,2,2-Tetrachloroethane ug/m³ 25NA< 3.4 <3.43.4 0.16

1,1,2-Trichloroethane ug/m³ 25NA< 2.7 <2.72.7 0.12

1,1-Dichloroethane ug/m³ 25NA< 2.0 <2.02.0 0.065

1,1-Dichloroethene ug/m³ 25NA< 2.0 <2.02.0 0.087

1,2,4-Trichlorobenzene ug/m³ 25NA< 3.7 <3.73.7 0.12

1,2,4-Trimethylbenzene ug/m³ 252.3432.2 31.41.0 0.064

1,2-Dibromoethane ug/m³ 25NA< 3.8 <3.83.8 0.12

1,2-Dichlorobenzene ug/m³ 25NA< 3.0 <3.03.0 0.18

1,2-Dichloroethane ug/m³ 25NA< 2.0 <2.02.0 0.085

1,2-Dichloropropane ug/m³ 25NA< 2.3 <2.32.3 0.069

1,3,5-Trimethylbenzene ug/m³ 250.06848.12 8.121.0 0.064

1,3-Butadiene ug/m³ 25NA< 1.1 <1.11.1 0.073



2-Butanone ug/m³ 2510.216.2 14.61.5 0.068

4-Ethyltoluene ug/m³ 251.558.21 8.332.5 0.10

Acetone ug/m³ 256.73494 46232 5.1

Benzene ug/m³ 253.326.04 5.840.64 0.067

Benzyl chloride ug/m³ 25NA< 2.6 <2.62.6 0.12

Bromodichloromethane ug/m³ 25NA< 3.4 <3.43.4 0.087

Bromoform ug/m³ 25NA< 5.2 <5.25.2 0.21

Bromomethane ug/m³ 25NA< 1.9 <1.91.9 0.12

Carbon disulfide ug/m³ 252.265.56 5.691.6 0.034

Carbon tetrachloride ug/m³ 25NA< 3.1 <3.13.1 0.18

Chlorobenzene ug/m³ 25NA< 2.3 <2.32.3 0.097

Chloroethane ug/m³ 25NA< 1.3 <1.31.3 0.063

Chloroform ug/m³ 25NA< 2.4 <2.42.4 0.11

Chloromethane ug/m³ 25NA< 1.0 <1.01.0 0.052

cis-1,2-Dichloroethene ug/m³ 25NA< 2.0 <2.02.0 0.13

cis-1,3-Dichloropropene ug/m³ 25NA< 2.3 <2.32.3 0.21

Cyclohexane ug/m³ 25NA< 1.7 <1.71.7 0.069

Dibromochloromethane ug/m³ 25NA< 4.3 <4.34.3 0.14

Dichlorodifluoromethane ug/m³ 25NA< 2.5 <2.52.5 0.11


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ResultSource

%REC%RECLimits %RPD



RL MDL



Dichlorotetrafluoroethane ug/m³ 25NA< 3.5 <3.53.5 0.20

Ethanol ug/m³ 25NA< 0.94 <0.940.94 0.14

Ethyl acetate ug/m³ 25NA< 1.8 <1.81.8 0.14

Ethylbenzene ug/m³ 255.9015.2 14.40.87 0.083

Hexachlorobutadiene ug/m³ 25NA< 5.3 <5.35.3 0.31

Isopropyl alcohol ug/m³ 2519.66.11 5.021.2 0.074

m,p-Xylene ug/m³ 251.9165.2 66.51.7 0.17

Methyl butyl ketone ug/m³ 25NA< 2.0 <2.02.0 0.094

Methyl isobutyl ketone ug/m³ 25NA< 2.0 <2.02.0 0.24

Methyl tert-butyl ether ug/m³ 25NA< 1.8 <1.81.8 0.087

Methylene chloride ug/m³ 25NA< 1.7 <1.71.7 0.16

Naphthalene ug/m³ 255.385.17 4.902.6 0.089

n-Heptane ug/m³ 259.3711.9 10.82.0 0.049

n-Hexane ug/m³ 25 R826.88.21 6.271.8 0.088

o-Xylene ug/m³ 253.0723.8 24.50.87 0.10

Propylene ug/m³ 256.0287.6 82.423 1.2

Styrene ug/m³ 25NA< 2.1 <2.12.1 0.051

Tetrachloroethene ug/m³ 251.1617.5 17.33.4 0.088

Tetrahydrofuran ug/m³ 25NA< 1.5 <1.51.5 0.071

Toluene ug/m³ 250.64848.7 48.40.75 0.072

trans-1,2-Dichloroethene ug/m³ 25NA< 2.0 <2.02.0 0.087

trans-1,3-Dichloropropene ug/m³ 25NA< 2.3 <2.32.3 0.068

Trichloroethene ug/m³ 25NA< 1.1 <1.11.1 0.11

Trichlorofluoromethane ug/m³ 25NA< 2.8 <2.82.8 0.11

Trichlorotrifluoroethane ug/m³ 25NA< 3.8 <3.83.8 0.19

Vinyl acetate ug/m³ 25NA< 1.8 <1.81.8 0.053

Vinyl chloride ug/m³ 25NA< 0.51 <0.510.51 0.051


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ResultSource

%REC%RECLimits %RPD


TENTATIVELY IDENTIFIED COMPOUNDS - Quality ControlLegend Technical Services, Inc.

RL MDL



Tentatively Identified Compounds ug/m³ A-02ND


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Notes and Definitions

T-1 MDH does not offer certification for this parameter.

R8 Sample RPD exceeded the method acceptance limit.

A-02 No tentatively identified compounds (TICs) were present above 5.0 ppbv.

Relative Percent DifferenceRPD

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


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The results in this report apply to the samples analyzed in accordance w

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in its entirety.P

age 33 of 36

88 Em

pire Drive

St P

aul, MN

55103Tel: 651-642-1150F

ax: 651-642-1239





in its entirety.P

age 34 of 36

88 Em

pire Drive

St P

aul, MN

55103Tel: 651-642-1150F

ax: 651-642-1239





in its entirety.P

age 35 of 36

88 Em

pire Drive

St P

aul, MN

55103Tel: 651-642-1150F

ax: 651-642-1239





in its entirety.P

age 36 of 36


RE: 23191225

Minneapolis, MN 55435

April 28, 2014


Bach Pham Samantha JaworskiClient Manager II Manager, Organics




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 30 days from the date of this report and then discarded unless other arrangements are made. All samples were received in acceptable condition unless otherwise noted.

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

MDH (NELAP) Accreditation #027-123-295


Ms. Julie Sullivan

4700 W 77th St



Project:

Project Number:

Project Manager:

23191225

23191225.00



Work Order #: 14015514700 W 77th St



Date ReceivedMatrix

SB-2_2-12 1401551-01 Water 04/10/14 17:50 04/14/14 12:05

TW-1_5-15 1401551-02 Water 04/11/14 09:50 04/14/14 12:05

TW-8_5-15 1401551-03 Water 04/11/14 11:05 04/14/14 12:05

TW-6_11-16 1401551-04 Water 04/11/14 12:15 04/14/14 12:05

TW-5_10-20 1401551-05 Water 04/11/14 12:55 04/14/14 12:05

Trip Blank 1401551-06 Water 04/11/14 00:00 04/14/14 12:05

Shipping Container Information

Default Cooler Temperature (°C):

Received on ice: Yes Temperature blank was not present Received on ice pack: NoReceived on melt water: No Ambient: No Acceptable (IH/ISO only): No

Custody seals: No

Case Narrative:


Page 2 of 23


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23191225

23191225.00




DISSOLVED METAL ANALYSISLegend Technical Services, Inc.

Result Analyte RL Units Dilution Batch Prepared Analyzed Method Notes MDL

SB-2_2-12 (1401551-01) Water Sampled: 04/10/14 17:50 Received: 04/14/14 12:05

EPA 6010C (Dissolved)

04/17/14 04/18/14 mg/L B4D1719Arsenic 0.010<0.010 0.0014 1

" " "mg/LBarium 0.020 "0.079 0.0021 1

"" "mg/L "Cadmium 0.0010<0.0010 0.00015 1

"" "mg/L "Chromium 0.010<0.010 0.00015 1

"" "mg/L "Lead 0.0030<0.0030 0.00058 1

EPA 7470A (Dissolved)

04/17/14 04/18/14 mg/L B4D1706Mercury 0.00020<0.00020 0.000034 1


04/17/14 04/18/14 mg/L B4D1719Selenium 0.020<0.020 0.0040 1

"" "mg/L "Silver 0.0050<0.0050 0.00031 1

TW-1_5-15 (1401551-02) Water Sampled: 04/11/14 09:50 Received: 04/14/14 12:05


04/17/14 04/18/14 mg/L B4D1719Arsenic 0.010<0.010 0.0014 1

" " "mg/LBarium 0.020 "0.23 0.0021 1

"" "mg/L "Cadmium 0.0010<0.0010 0.00015 1

"" "mg/L "Chromium 0.010<0.010 0.00015 1

"" "mg/L "Lead 0.0030<0.0030 0.00058 1


04/17/14 04/18/14 mg/L B4D1706Mercury 0.00020<0.00020 0.000034 1


04/17/14 04/18/14 mg/L B4D1719Selenium 0.020<0.020 0.0040 1

"" "mg/L "Silver 0.0050<0.0050 0.00031 1



04/17/14 04/18/14 mg/L B4D1719Arsenic 0.010<0.010 0.0014 1

" " "mg/LBarium 0.020 "0.094 0.0021 1

"" "mg/L "Cadmium 0.0010<0.0010 0.00015 1

"" "mg/L "Chromium 0.010<0.010 0.00015 1

"" "mg/L "Lead 0.0030<0.0030 0.00058 1


04/17/14 04/18/14 mg/L B4D1706Mercury 0.00020<0.00020 0.000034 1


04/17/14 04/18/14 mg/L B4D1719Selenium 0.020<0.020 0.0040 1

"" "mg/L "Silver 0.0050<0.0050 0.00031 1


Page 3 of 23


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Project Number:

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23191225

23191225.00




VOC 8260BLegend Technical Services, Inc.



EPA 8260B04/16/14 04/16/14 ug/L B4D16141,1,1,2-Tetrachloroethane 1.0<1.0 0.060 1

"" "ug/L "1,1,1-Trichloroethane 1.0<1.0 0.059 1

"" "ug/L "1,1,2,2-Tetrachloroethane 1.0<1.0 0.072 1


"" "ug/L "1,1,2-Trichlorotrifluoroethane 1.0 T-1<1.0 0.16 1

"" "ug/L "1,1-Dichloroethane 1.0<1.0 0.037 1

"" "ug/L "1,1-Dichloroethene 1.0<1.0 0.079 1

"" "ug/L "1,1-Dichloropropene 1.0<1.0 0.081 1

"" "ug/L "1,2,3-Trichlorobenzene 5.0<5.0 0.23 1

"" "ug/L "1,2,3-Trichloropropane 2.5<2.5 0.071 1


"" "ug/L "1,2,4-Trimethylbenzene 1.0<1.0 0.086 1

"" "ug/L "1,2-Dibromo-3-chloropropane 5.0<5.0 0.14 1

"" "ug/L "1,2-Dibromoethane (EDB) 2.5<2.5 0.057 1

"" "ug/L "1,2-Dichlorobenzene 1.0<1.0 0.11 1


"" "ug/L "1,2-Dichloropropane 1.0<1.0 0.039 1






"" "ug/L "2-Butanone 20<20 0.11 1

"" "ug/L "2-Chlorotoluene 1.0<1.0 0.078 1


"" "ug/L "Acetone 20<20 0.54 1

"" "ug/L "Allyl chloride 5.0<5.0 0.053 1

"" "ug/L "Benzene 1.0<1.0 0.042 1

"" "ug/L "Bromobenzene 1.0<1.0 0.058 1

"" "ug/L "Bromochloromethane 1.0<1.0 0.051 1

"" "ug/L "Bromodichloromethane 1.0<1.0 0.038 1

"" "ug/L "Bromoform 5.0<5.0 0.073 1

"" "ug/L "Bromomethane 5.0<5.0 0.062 1

"" "ug/L "Carbon tetrachloride 1.0<1.0 0.083 1

"" "ug/L "Chlorobenzene 1.0<1.0 0.042 1

"" "ug/L "Chloroethane 2.5<2.5 0.030 1

"" "ug/L "Chloroform 1.0<1.0 0.038 1

"" "ug/L "Chloromethane 2.5<2.5 0.027 1

"" "ug/L "cis-1,2-Dichloroethene 1.0<1.0 0.037 1


Page 4 of 23


Project:

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23191225

23191225.00







EPA 8260B04/16/14 04/16/14 ug/L B4D1614cis-1,3-Dichloropropene 1.0<1.0 0.071 1

"" "ug/L "Dibromochloromethane 2.5<2.5 0.039 1

"" "ug/L "Dibromomethane 2.5<2.5 0.056 1

"" "ug/L "Dichlorodifluoromethane 5.0<5.0 0.11 1

"" "ug/L "Dichlorofluoromethane 1.0 T-1<1.0 0.041 1

"" "ug/L "Ethyl ether 5.0<5.0 0.063 1

"" "ug/L "Ethylbenzene 1.0<1.0 0.057 1

"" "ug/L "Hexachlorobutadiene 10<10 0.53 1

"" "ug/L "Isopropylbenzene 1.0<1.0 0.084 1

"" "ug/L "m,p-Xylene 2.0<2.0 0.11 1

"" "ug/L "Methyl isobutyl ketone 5.0<5.0 0.079 1

"" "ug/L "Methyl tert-butyl ether 1.0<1.0 0.035 1

"" "ug/L "Methylene chloride 5.0<5.0 0.40 1

"" "ug/L "Naphthalene 5.0<5.0 0.093 1

"" "ug/L "n-Butylbenzene 2.5 M2<2.5 0.37 1

"" "ug/L "n-Propylbenzene 1.0<1.0 0.086 1

"" "ug/L "o-Xylene 1.0<1.0 0.080 1

"" "ug/L "p-Isopropyltoluene 2.5<2.5 0.20 1

"" "ug/L "sec-Butylbenzene 1.0<1.0 0.12 1

"" "ug/L "Styrene 1.0<1.0 0.052 1

"" "ug/L "tert-Butylbenzene 1.0<1.0 0.11 1

"" "ug/L "Tetrachloroethene 1.0<1.0 0.13 1

"" "ug/L "Tetrahydrofuran 20 T-1<20 0.12 1

"" "ug/L "Toluene 1.0<1.0 0.032 1

"" "ug/L "trans-1,2-Dichloroethene 1.0<1.0 0.046 1

"" "ug/L "trans-1,3-Dichloropropene 1.0<1.0 0.056 1

"" "ug/L "Trichloroethene 1.0<1.0 0.052 1

"" "ug/L "Trichlorofluoromethane 1.0<1.0 0.067 1

"" "ug/L "Vinyl chloride 1.0<1.0 0.048 1

" " " "88.6 80-121 %Surrogate: 4-Bromofluorobenzene

" " " "95.2 79.9-121 %Surrogate: Dibromofluoromethane

" " " "98.3 80-120 %Surrogate: Toluene-d8









Page 5 of 23


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23191225

23191225.00







EPA 8260B04/16/14 04/16/14 ug/L B4D16141,1-Dichloroethene 1.0<1.0 0.079 1
















"" "ug/L "2-Butanone 20<20 0.11 1



"" "ug/L "Acetone 20<20 0.54 1


"" "ug/L "Benzene 1.0<1.0 0.042 1




"" "ug/L "Bromoform 5.0<5.0 0.073 1





"" "ug/L "Chloroform 1.0<1.0 0.038 1



"" "ug/L "cis-1,3-Dichloropropene 1.0<1.0 0.071 1





"" "ug/L "Ethyl ether 5.0<5.0 0.063 1


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23191225

23191225.00







EPA 8260B04/16/14 04/16/14 ug/L B4D1614Ethylbenzene 1.0<1.0 0.057 1



"" "ug/L "m,p-Xylene 2.0<2.0 0.11 1




"" "ug/L "Naphthalene 5.0<5.0 0.093 1

"" "ug/L "n-Butylbenzene 2.5<2.5 0.37 1


"" "ug/L "o-Xylene 1.0<1.0 0.080 1



"" "ug/L "Styrene 1.0<1.0 0.052 1




"" "ug/L "Toluene 1.0<1.0 0.032 1























Page 7 of 23


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Project Number:

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23191225

23191225.00







EPA 8260B04/16/14 04/16/14 ug/L B4D16141,2-Dibromo-3-chloropropane 5.0<5.0 0.14 1










"" "ug/L "2-Butanone 20<20 0.11 1



"" "ug/L "Acetone 20<20 0.54 1


"" "ug/L "Benzene 1.0<1.0 0.042 1




"" "ug/L "Bromoform 5.0<5.0 0.073 1





"" "ug/L "Chloroform 1.0<1.0 0.038 1








"" "ug/L "Ethyl ether 5.0<5.0 0.063 1




"" "ug/L "m,p-Xylene 2.0<2.0 0.11 1




Page 8 of 23


Project:

Project Number:

Project Manager:

23191225

23191225.00







EPA 8260B04/16/14 04/16/14 ug/L B4D1614Methylene chloride 5.0<5.0 0.40 1

"" "ug/L "Naphthalene 5.0<5.0 0.093 1



"" "ug/L "o-Xylene 1.0<1.0 0.080 1



"" "ug/L "Styrene 1.0<1.0 0.052 1




"" "ug/L "Toluene 1.0<1.0 0.032 1





























Page 9 of 23


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Project Number:

Project Manager:

23191225

23191225.00







EPA 8260B04/16/14 04/17/14 ug/L B4D16141,3-Dichlorobenzene 1.0<1.0 0.054 1




"" "ug/L "2-Butanone 20<20 0.11 1



"" "ug/L "Acetone 20<20 0.54 1


"" "ug/L "Benzene 1.0<1.0 0.042 1




"" "ug/L "Bromoform 5.0<5.0 0.073 1





"" "ug/L "Chloroform 1.0<1.0 0.038 1








"" "ug/L "Ethyl ether 5.0<5.0 0.063 1




"" "ug/L "m,p-Xylene 2.0<2.0 0.11 1




"" "ug/L "Naphthalene 5.0<5.0 0.093 1



"" "ug/L "o-Xylene 1.0<1.0 0.080 1



Page 10 of 23


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Project Number:

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23191225

23191225.00







EPA 8260B04/16/14 04/17/14 ug/L B4D1614sec-Butylbenzene 1.0<1.0 0.12 1

"" "ug/L "Styrene 1.0<1.0 0.052 1




"" "ug/L "Toluene 1.0<1.0 0.032 1
































" " "ug/L2-Butanone 20 "43 0.11 1



Page 11 of 23


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23191225

23191225.00







EPA 8260B04/16/14 04/17/14 ug/L B4D16144-Chlorotoluene 1.0<1.0 0.088 1

" " "ug/LAcetone 20 "45 0.54 1


"" "ug/L "Benzene 1.0<1.0 0.042 1




"" "ug/L "Bromoform 5.0<5.0 0.073 1





"" "ug/L "Chloroform 1.0<1.0 0.038 1








"" "ug/L "Ethyl ether 5.0<5.0 0.063 1




"" "ug/L "m,p-Xylene 2.0<2.0 0.11 1




"" "ug/L "Naphthalene 5.0<5.0 0.093 1



"" "ug/L "o-Xylene 1.0<1.0 0.080 1



"" "ug/L "Styrene 1.0<1.0 0.052 1




"" "ug/L "Toluene 1.0<1.0 0.032 1


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23191225

23191225.00







EPA 8260B04/16/14 04/17/14 ug/L B4D1614trans-1,2-Dichloroethene 1.0<1.0 0.046 1








Trip Blank (1401551-06) Water Sampled: 04/11/14 00:00 Received: 04/14/14 12:05























"" "ug/L "2-Butanone 20<20 0.11 1



"" "ug/L "Acetone 20<20 0.54 1


"" "ug/L "Benzene 1.0<1.0 0.042 1




Page 13 of 23


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23191225

23191225.00







EPA 8260B04/16/14 04/17/14 ug/L B4D1614Bromodichloromethane 1.0<1.0 0.038 1

"" "ug/L "Bromoform 5.0<5.0 0.073 1





"" "ug/L "Chloroform 1.0<1.0 0.038 1








"" "ug/L "Ethyl ether 5.0<5.0 0.063 1




"" "ug/L "m,p-Xylene 2.0<2.0 0.11 1




"" "ug/L "Naphthalene 5.0<5.0 0.093 1



"" "ug/L "o-Xylene 1.0<1.0 0.080 1



"" "ug/L "Styrene 1.0<1.0 0.052 1




"" "ug/L "Toluene 1.0<1.0 0.032 1








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23191225

23191225.00







B4D1614 04/16/14 04/17/14 EPA 8260B93.3 79.9-121 %Surrogate: Dibromofluoromethane



Page 15 of 23


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23191225

23191225.00





ResultSource

%REC%RECLimits %RPD


DISSOLVED METAL ANALYSIS - Quality ControlLegend Technical Services, Inc.

RL MDL

Batch B4D1706 - EPA 245.1/7470A Digestion

Blank (B4D1706-BLK1) Prepared: 04/17/14 Analyzed: 04/18/14

Mercury mg/L< 0.00020 0.00020 0.000034

LCS (B4D1706-BS1) Prepared: 04/17/14 Analyzed: 04/18/14

Mercury mg/L 0.00200 80-1201040.00207 0.00020 0.000034

LCS Dup (B4D1706-BSD1) Prepared: 04/17/14 Analyzed: 04/18/14

Mercury mg/L 0.00200 80-120105 1.440.00210 0.00020 0.000034 20

Matrix Spike (B4D1706-MS1) Prepared: 04/17/14 Analyzed: 04/18/14 Source: 1401551-01

Mercury mg/L 0.00200 75-1251040.00207 <0.000200.00020 0.000034

Matrix Spike Dup (B4D1706-MSD1) Prepared: 04/17/14 Analyzed: 04/18/14 Source: 1401551-01

Mercury mg/L 0.00200 75-125106 2.860.00213 <0.000200.00020 0.000034 20



Arsenic mg/L< 0.010 0.010 0.0014

Barium mg/L< 0.020 0.020 0.0021

Cadmium mg/L< 0.0010 0.0010 0.00015

Chromium mg/L< 0.010 0.010 0.00015

Lead mg/L< 0.0030 0.0030 0.00058

Selenium mg/L< 0.020 0.020 0.0040

Silver mg/L< 0.0050 0.0050 0.00031


Arsenic mg/L 0.399 80-12090.60.362 0.010 0.0014

Barium mg/L 0.399 80-12093.00.371 0.020 0.0021

Cadmium mg/L 0.399 80-12092.10.367 0.0010 0.00015

Chromium mg/L 0.399 80-12094.00.375 0.010 0.00015

Lead mg/L 0.399 80-12097.90.391 0.0030 0.00058

Selenium mg/L 0.399 80-12090.80.362 0.020 0.0040

Silver mg/L 0.0399 80-12091.40.0365 0.0050 0.00031

LCS Dup (B4D1719-BSD1) Prepared: 04/17/14 Analyzed: 04/18/14

Arsenic mg/L 0.399 80-12092.5 2.060.369 0.010 0.0014 20

Barium mg/L 0.399 80-12096.1 3.230.383 0.020 0.0021 20

Cadmium mg/L 0.399 80-12093.4 1.480.373 0.0010 0.00015 20

Chromium mg/L 0.399 80-12095.4 1.530.381 0.010 0.00015 20

Lead mg/L 0.399 80-12099.2 1.260.396 0.0030 0.00058 20

Selenium mg/L 0.399 80-12092.4 1.770.369 0.020 0.0040 20

Silver mg/L 0.0399 80-12094.1 2.980.0376 0.0050 0.00031 20


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23191225.00





ResultSource

%REC%RECLimits %RPD


DISSOLVED METAL ANALYSIS - Quality ControlLegend Technical Services, Inc.

RL MDL



Arsenic mg/L 0.399 75-12590.90.365 <0.0100.010 0.0014

Barium mg/L 0.399 75-12592.30.447 0.07910.020 0.0021

Cadmium mg/L 0.399 75-12590.60.363 <0.00100.0010 0.00015

Chromium mg/L 0.399 75-12589.60.358 <0.0100.010 0.00015

Lead mg/L 0.399 75-12593.30.373 <0.00300.0030 0.00058

Selenium mg/L 0.399 75-12591.00.369 <0.0200.020 0.0040

Silver mg/L 0.0399 75-12592.80.0370 <0.00500.0050 0.00031


Arsenic mg/L 0.399 75-12598.6 8.060.395 <0.0100.010 0.0014 20

Barium mg/L 0.399 75-125102 7.930.484 0.07910.020 0.0021 20

Cadmium mg/L 0.399 75-12598.5 8.300.394 <0.00100.0010 0.00015 20

Chromium mg/L 0.399 75-12597.8 8.690.390 <0.0100.010 0.00015 20

Lead mg/L 0.399 75-125101 7.770.403 <0.00300.0030 0.00058 20

Selenium mg/L 0.399 75-12597.0 6.350.393 <0.0200.020 0.0040 20

Silver mg/L 0.0399 75-12599.9 7.410.0399 <0.00500.0050 0.00031 20


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ResultSource

%REC%RECLimits %RPD


VOC 8260B - Quality ControlLegend Technical Services, Inc.

RL MDL

Batch B4D1614 - EPA 5030 Water (Purge and Trap)


1,1,1,2-Tetrachloroethane ug/L< 1.0 1.0 0.060

1,1,1-Trichloroethane ug/L< 1.0 1.0 0.059

1,1,2,2-Tetrachloroethane ug/L< 1.0 1.0 0.072

1,1,2-Trichloroethane ug/L< 1.0 1.0 0.062

1,1,2-Trichlorotrifluoroethane ug/L< 1.0 1.0 0.16

1,1-Dichloroethane ug/L< 1.0 1.0 0.037

1,1-Dichloroethene ug/L< 1.0 1.0 0.079

1,1-Dichloropropene ug/L< 1.0 1.0 0.081

1,2,3-Trichlorobenzene ug/L< 5.0 5.0 0.23

1,2,3-Trichloropropane ug/L< 2.5 2.5 0.071

1,2,4-Trichlorobenzene ug/L< 5.0 5.0 0.30

1,2,4-Trimethylbenzene ug/L< 1.0 1.0 0.086

1,2-Dibromo-3-chloropropane ug/L< 5.0 5.0 0.14

1,2-Dibromoethane (EDB) ug/L< 2.5 2.5 0.057

1,2-Dichlorobenzene ug/L< 1.0 1.0 0.11

1,2-Dichloroethane ug/L< 1.0 1.0 0.052

1,2-Dichloropropane ug/L< 1.0 1.0 0.039

1,3,5-Trimethylbenzene ug/L< 1.0 1.0 0.046





2-Butanone ug/L< 20 20 0.11

2-Chlorotoluene ug/L< 1.0 1.0 0.078

4-Chlorotoluene ug/L< 1.0 1.0 0.088

Acetone ug/L< 20 20 0.54

Allyl chloride ug/L< 5.0 5.0 0.053

Benzene ug/L< 1.0 1.0 0.042

Bromobenzene ug/L< 1.0 1.0 0.058

Bromochloromethane ug/L< 1.0 1.0 0.051

Bromodichloromethane ug/L< 1.0 1.0 0.038

Bromoform ug/L< 5.0 5.0 0.073

Bromomethane ug/L< 5.0 5.0 0.062

Carbon tetrachloride ug/L< 1.0 1.0 0.083

Chlorobenzene ug/L< 1.0 1.0 0.042

Chloroethane ug/L< 2.5 2.5 0.030

Chloroform ug/L< 1.0 1.0 0.038

Chloromethane ug/L< 2.5 2.5 0.027

cis-1,2-Dichloroethene ug/L< 1.0 1.0 0.037


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ResultSource

%REC%RECLimits %RPD



RL MDL



cis-1,3-Dichloropropene ug/L< 1.0 1.0 0.071

Dibromochloromethane ug/L< 2.5 2.5 0.039

Dibromomethane ug/L< 2.5 2.5 0.056

Dichlorodifluoromethane ug/L< 5.0 5.0 0.11

Dichlorofluoromethane ug/L< 1.0 1.0 0.041

Ethyl ether ug/L< 5.0 5.0 0.063

Ethylbenzene ug/L< 1.0 1.0 0.057

Hexachlorobutadiene ug/L< 10 10 0.53

Isopropylbenzene ug/L< 1.0 1.0 0.084

m,p-Xylene ug/L< 2.0 2.0 0.11

Methyl isobutyl ketone ug/L< 5.0 5.0 0.079

Methyl tert-butyl ether ug/L< 1.0 1.0 0.035

Methylene chloride ug/L< 5.0 5.0 0.40

Naphthalene ug/L< 5.0 5.0 0.093

n-Butylbenzene ug/L< 2.5 2.5 0.37

n-Propylbenzene ug/L< 1.0 1.0 0.086

o-Xylene ug/L< 1.0 1.0 0.080

p-Isopropyltoluene ug/L< 2.5 2.5 0.20

sec-Butylbenzene ug/L< 1.0 1.0 0.12

Styrene ug/L< 1.0 1.0 0.052

tert-Butylbenzene ug/L< 1.0 1.0 0.11

Tetrachloroethene ug/L< 1.0 1.0 0.13

Tetrahydrofuran ug/L< 20 20 0.12

Toluene ug/L< 1.0 1.0 0.032

trans-1,2-Dichloroethene ug/L< 1.0 1.0 0.046

trans-1,3-Dichloropropene ug/L< 1.0 1.0 0.056

Trichloroethene ug/L< 1.0 1.0 0.052

Trichlorofluoromethane ug/L< 1.0 1.0 0.067

Vinyl chloride ug/L< 1.0 1.0 0.048

ug/L 50.0 80-121Surrogate: 4-Bromofluorobenzene 90.345.2

ug/L 50.0 79.9-121Surrogate: Dibromofluoromethane 10050.0

ug/L 50.0 80-120Surrogate: Toluene-d8 94.947.4


1,1,2,2-Tetrachloroethane ug/L 50.0 80-12196.548.2 1.0 0.072

1,1-Dichloroethane ug/L 50.0 80-12510150.6 1.0 0.037

1,1-Dichloroethene ug/L 50.0 80-12510251.2 1.0 0.079

1,3,5-Trimethylbenzene ug/L 50.0 75.4-12596.148.1 1.0 0.046

1,4-Dichlorobenzene ug/L 50.0 75-12597.648.8 1.0 0.080

2-Chlorotoluene ug/L 50.0 75.4-12595.947.9 1.0 0.078


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23191225

23191225.00





ResultSource

%REC%RECLimits %RPD



RL MDL



Benzene ug/L 50.0 80-12010452.2 1.0 0.042

Bromoform ug/L 50.0 80-12010050.2 5.0 0.073

Chlorobenzene ug/L 50.0 80-12099.949.9 1.0 0.042

Chloroform ug/L 50.0 80-12310050.1 1.0 0.038

Ethylbenzene ug/L 50.0 80-12099.849.9 1.0 0.057

n-Butylbenzene ug/L 50.0 75-12510552.5 2.5 0.37

n-Propylbenzene ug/L 50.0 75.8-12597.548.8 1.0 0.086

Toluene ug/L 50.0 80-12010351.4 1.0 0.032

Trichloroethene ug/L 50.0 80-12010351.4 1.0 0.052

Vinyl chloride ug/L 50.0 75-13010753.6 1.0 0.048


ug/L 50.0 79.9-121Surrogate: Dibromofluoromethane 10050.1

ug/L 50.0 80-120Surrogate: Toluene-d8 10050.2


1,1,2,2-Tetrachloroethane ug/L 50.0 76.8-12591.245.6 <1.01.0 0.072

1,1-Dichloroethane ug/L 50.0 80-12594.547.2 <1.01.0 0.037

1,1-Dichloroethene ug/L 50.0 80-12588.544.3 <1.01.0 0.079

1,3,5-Trimethylbenzene ug/L 50.0 75-12580.040.1 <1.01.0 0.046

1,4-Dichlorobenzene ug/L 50.0 75-12575.337.7 <1.01.0 0.080

2-Chlorotoluene ug/L 50.0 75-12579.039.5 <1.01.0 0.078

Benzene ug/L 50.0 80-12093.547.0 <1.01.0 0.042

Bromoform ug/L 50.0 80-12088.244.1 <5.05.0 0.073

Chlorobenzene ug/L 50.0 80-12084.842.4 <1.01.0 0.042

Chloroform ug/L 50.0 79.8-12589.044.5 <1.01.0 0.038

Ethylbenzene ug/L 50.0 80-12085.642.9 <1.01.0 0.057

n-Butylbenzene ug/L 50.0 M275-13065.632.8 <2.52.5 0.37

n-Propylbenzene ug/L 50.0 75-12578.739.3 <1.01.0 0.086

Toluene ug/L 50.0 80-12092.746.7 <1.01.0 0.032

Trichloroethene ug/L 50.0 80-12087.843.9 <1.01.0 0.052

Vinyl chloride ug/L 50.0 75-13095.547.7 <1.01.0 0.048


ug/L 50.0 79.9-121Surrogate: Dibromofluoromethane 93.046.5



1,1,2,2-Tetrachloroethane ug/L 50.0 76.8-12590.1 1.1245.1 <1.01.0 0.072 20

1,1-Dichloroethane ug/L 50.0 80-12593.6 0.90346.8 <1.01.0 0.037 20

1,1-Dichloroethene ug/L 50.0 80-12587.8 0.83243.9 <1.01.0 0.079 20

1,3,5-Trimethylbenzene ug/L 50.0 75-12578.9 1.3739.5 <1.01.0 0.046 20


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23191225.00





ResultSource

%REC%RECLimits %RPD



RL MDL



1,4-Dichlorobenzene ug/L 50.0 75-12575.4 0.099337.8 <1.01.0 0.080 20

2-Chlorotoluene ug/L 50.0 75-12577.3 2.1238.6 <1.01.0 0.078 20

Benzene ug/L 50.0 80-12091.8 1.9046.1 <1.01.0 0.042 20

Bromoform ug/L 50.0 80-12087.0 1.3643.5 <5.05.0 0.073 20

Chlorobenzene ug/L 50.0 80-12082.8 2.3141.4 <1.01.0 0.042 20

Chloroform ug/L 50.0 79.8-12589.0 0.067044.5 <1.01.0 0.038 20

Ethylbenzene ug/L 50.0 80-12085.0 0.68642.6 <1.01.0 0.057 20

n-Butylbenzene ug/L 50.0 M275-13069.8 6.1034.9 <2.52.5 0.37 20

n-Propylbenzene ug/L 50.0 75-12578.0 0.89339.0 <1.01.0 0.086 20

Toluene ug/L 50.0 80-12092.6 0.039046.7 <1.01.0 0.032 20

Trichloroethene ug/L 50.0 80-12086.5 1.4443.3 <1.01.0 0.052 20

Vinyl chloride ug/L 50.0 75-13093.6 1.9546.8 <1.01.0 0.048 20





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23191225.00






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

Sample results reported on a dry weight basis


dry




RL Reporting Limit

LCS

MS

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

Matrix Spike = Laboratory Fortified Matrix (LFM)


Page 22 of 23

88 Em

pire Drive

St P

aul, MN

55103Tel: 651-642-1150F

ax: 651-642-1239





in its entirety.P

age 23 of 23


RE: 23191225

Minneapolis, MN 55435

April 28, 2014


Bach Pham Samantha JaworskiClient Manager II Manager, Organics




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 30 days from the date of this report and then discarded unless other arrangements are made. All samples were received in acceptable condition unless otherwise noted.

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

MDH (NELAP) Accreditation #027-123-295


Ms. Julie Sullivan

4700 W 77th St



Project:

Project Number:

Project Manager:

23191225

23191225.00






Date ReceivedMatrix

SB-2_8-9 1401612-01 Soil 04/10/14 17:23 04/14/14 12:05

SB-4_5-5.5 1401612-02 Soil 04/11/14 14:43 04/14/14 12:05

Shipping Container Information

Default Cooler Temperature (°C):

Received on ice: Yes Temperature blank was not present Received on ice pack: NoReceived on melt water: No Ambient: No Acceptable (IH/ISO only): No

Custody seals: No

Case Narrative:


Page 2 of 14


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PERCENT SOLIDSLegend Technical Services, Inc.


SB-2_8-9 (1401612-01) Soil Sampled: 04/10/14 17:23 Received: 04/14/14 12:05

B4D2305 04/23/14 04/23/14 %% Solids % calculation86 1

SB-4_5-5.5 (1401612-02) Soil Sampled: 04/11/14 14:43 Received: 04/14/14 12:05

B4D2305 04/23/14 04/23/14 %% Solids % calculation88 1


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23191225.00







EPA 8260B04/22/14 04/23/14 mg/kg dry B4D23191,1,1,2-Tetrachloroethane 0.11<0.11 0.0022 1

"" "mg/kg dry "1,1,1-Trichloroethane 0.11<0.11 0.0024 1

"" "mg/kg dry "1,1,2,2-Tetrachloroethane 0.11<0.11 0.0025 1


"" "mg/kg dry "1,1,2-Trichlorotrifluoroethane 0.11 T-1<0.11 0.0039 1

"" "mg/kg dry "1,1-Dichloroethane 0.11<0.11 0.0014 1

"" "mg/kg dry "1,1-Dichloroethene 0.11<0.11 0.0025 1

"" "mg/kg dry "1,1-Dichloropropene 0.11<0.11 0.0024 1

"" "mg/kg dry "1,2,3-Trichlorobenzene 0.22<0.22 0.0022 1

"" "mg/kg dry "1,2,3-Trichloropropane 0.11<0.11 0.0020 1


"" "mg/kg dry "1,2,4-Trimethylbenzene 0.11<0.11 0.0014 1

"" "mg/kg dry "1,2-Dibromo-3-chloropropane 0.22<0.22 0.0036 1

"" "mg/kg dry "1,2-Dibromoethane (EDB) 0.11<0.11 0.0031 1

"" "mg/kg dry "1,2-Dichlorobenzene 0.11<0.11 0.0015 1


"" "mg/kg dry "1,2-Dichloropropane 0.11<0.11 0.0021 1






"" "mg/kg dry "2-Butanone 0.86<0.86 0.0060 1

"" "mg/kg dry "2-Chlorotoluene 0.11<0.11 0.00095 1


"" "mg/kg dry "Acetone 0.86<0.86 0.043 1

"" "mg/kg dry "Allyl chloride 0.22<0.22 0.0036 1

"" "mg/kg dry "Benzene 0.11<0.11 0.0012 1

"" "mg/kg dry "Bromobenzene 0.11<0.11 0.0022 1

"" "mg/kg dry "Bromochloromethane 0.11<0.11 0.0032 1

"" "mg/kg dry "Bromodichloromethane 0.11<0.11 0.0019 1

"" "mg/kg dry "Bromoform 0.22<0.22 0.0030 1

"" "mg/kg dry "Bromomethane 0.22<0.22 0.0026 1

"" "mg/kg dry "Carbon tetrachloride 0.11<0.11 0.0026 1

"" "mg/kg dry "Chlorobenzene 0.11<0.11 0.0011 1

"" "mg/kg dry "Chloroethane 0.11<0.11 0.0031 1

"" "mg/kg dry "Chloroform 0.11<0.11 0.00099 1

"" "mg/kg dry "Chloromethane 0.11<0.11 0.0029 1

"" "mg/kg dry "cis-1,2-Dichloroethene 0.11<0.11 0.00077 1


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23191225

23191225.00







EPA 8260B04/22/14 04/23/14 mg/kg dry B4D2319cis-1,3-Dichloropropene 0.11<0.11 0.0021 1

"" "mg/kg dry "Dibromochloromethane 0.11<0.11 0.0020 1

"" "mg/kg dry "Dibromomethane 0.11<0.11 0.0020 1

"" "mg/kg dry "Dichlorodifluoromethane 0.22<0.22 0.0040 1

"" "mg/kg dry "Dichlorofluoromethane 0.11 T-1<0.11 0.0034 1

"" "mg/kg dry "Ethyl ether 0.22<0.22 0.0022 1

"" "mg/kg dry "Ethylbenzene 0.11<0.11 0.0011 1

"" "mg/kg dry "Hexachlorobutadiene 0.43<0.43 0.077 1

"" "mg/kg dry "Isopropylbenzene 0.11<0.11 0.00073 1

"" "mg/kg dry "m,p-Xylene 0.22<0.22 0.0042 1

"" "mg/kg dry "Methyl isobutyl ketone 0.22<0.22 0.0060 1

"" "mg/kg dry "Methyl tert-butyl ether 0.11<0.11 0.0024 1

"" "mg/kg dry "Methylene chloride 0.43<0.43 0.0017 1

"" "mg/kg dry "Naphthalene 0.22<0.22 0.0052 1

"" "mg/kg dry "n-Butylbenzene 0.11<0.11 0.0024 1

"" "mg/kg dry "n-Propylbenzene 0.11<0.11 0.0013 1

"" "mg/kg dry "o-Xylene 0.11<0.11 0.0017 1

"" "mg/kg dry "p-Isopropyltoluene 0.11<0.11 0.0013 1

"" "mg/kg dry "sec-Butylbenzene 0.11<0.11 0.0015 1

"" "mg/kg dry "Styrene 0.11<0.11 0.0023 1

"" "mg/kg dry "tert-Butylbenzene 0.11<0.11 0.0012 1

"" "mg/kg dry "Tetrachloroethene 0.11<0.11 0.0022 1

"" "mg/kg dry "Tetrahydrofuran 0.86 T-1<0.86 0.014 1

"" "mg/kg dry "Toluene 0.11<0.11 0.0015 1

"" "mg/kg dry "trans-1,2-Dichloroethene 0.11<0.11 0.0019 1

"" "mg/kg dry "trans-1,3-Dichloropropene 0.11<0.11 0.0027 1

"" "mg/kg dry "Trichloroethene 0.11<0.11 0.0016 1

"" "mg/kg dry "Trichlorofluoromethane 0.11<0.11 0.0027 1

"" "mg/kg dry "Vinyl chloride 0.11<0.11 0.0026 1



" " " "93.0 78.1-125 %Surrogate: Toluene-d8


EPA 8260B04/22/14 04/23/14 mg/kg dry B4D23191,1,1,2-Tetrachloroethane 0.28<0.28 0.0058 1


"" "mg/kg dry "1,1,2,2-Tetrachloroethane 0.28<0.28 0.0065 1


"" "mg/kg dry "1,1,2-Trichlorotrifluoroethane 0.28 T-1<0.28 0.010 1



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23191225

23191225.00







EPA 8260B04/22/14 04/23/14 mg/kg dry B4D23191,1-Dichloroethene 0.28<0.28 0.0066 1

"" "mg/kg dry "1,1-Dichloropropene 0.28<0.28 0.0062 1


"" "mg/kg dry "1,2,3-Trichloropropane 0.28<0.28 0.0052 1



"" "mg/kg dry "1,2-Dibromo-3-chloropropane 0.57<0.57 0.0094 1

"" "mg/kg dry "1,2-Dibromoethane (EDB) 0.28<0.28 0.0082 1









"" "mg/kg dry "2-Butanone 2.3<2.3 0.016 1



"" "mg/kg dry "Acetone 2.3<2.3 0.11 1

"" "mg/kg dry "Allyl chloride 0.57<0.57 0.0094 1

"" "mg/kg dry "Benzene 0.28<0.28 0.0031 1

"" "mg/kg dry "Bromobenzene 0.28<0.28 0.0059 1

"" "mg/kg dry "Bromochloromethane 0.28<0.28 0.0084 1

"" "mg/kg dry "Bromodichloromethane 0.28<0.28 0.0049 1

"" "mg/kg dry "Bromoform 0.57<0.57 0.0080 1

"" "mg/kg dry "Bromomethane 0.57<0.57 0.0068 1

"" "mg/kg dry "Carbon tetrachloride 0.28<0.28 0.0068 1

"" "mg/kg dry "Chlorobenzene 0.28<0.28 0.0030 1

"" "mg/kg dry "Chloroethane 0.28<0.28 0.0082 1

"" "mg/kg dry "Chloroform 0.28<0.28 0.0026 1

"" "mg/kg dry "Chloromethane 0.28<0.28 0.0076 1

"" "mg/kg dry "cis-1,2-Dichloroethene 0.28<0.28 0.0020 1

"" "mg/kg dry "cis-1,3-Dichloropropene 0.28<0.28 0.0056 1

"" "mg/kg dry "Dibromochloromethane 0.28<0.28 0.0052 1

"" "mg/kg dry "Dibromomethane 0.28<0.28 0.0052 1

"" "mg/kg dry "Dichlorodifluoromethane 0.57<0.57 0.011 1

"" "mg/kg dry "Dichlorofluoromethane 0.28 T-1<0.28 0.0090 1

"" "mg/kg dry "Ethyl ether 0.57<0.57 0.0057 1


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23191225

23191225.00







EPA 8260B04/22/14 04/23/14 mg/kg dry B4D2319Ethylbenzene 0.28<0.28 0.0030 1

"" "mg/kg dry "Hexachlorobutadiene 1.1<1.1 0.20 1

"" "mg/kg dry "Isopropylbenzene 0.28<0.28 0.0019 1

"" "mg/kg dry "m,p-Xylene 0.57<0.57 0.011 1

"" "mg/kg dry "Methyl isobutyl ketone 0.57<0.57 0.016 1

"" "mg/kg dry "Methyl tert-butyl ether 0.28<0.28 0.0062 1

"" "mg/kg dry "Methylene chloride 1.1<1.1 0.0044 1

"" "mg/kg dry "Naphthalene 0.57<0.57 0.014 1

"" "mg/kg dry "n-Butylbenzene 0.28<0.28 0.0062 1

"" "mg/kg dry "n-Propylbenzene 0.28<0.28 0.0035 1

"" "mg/kg dry "o-Xylene 0.28<0.28 0.0044 1

"" "mg/kg dry "p-Isopropyltoluene 0.28<0.28 0.0034 1

"" "mg/kg dry "sec-Butylbenzene 0.28<0.28 0.0040 1

"" "mg/kg dry "Styrene 0.28<0.28 0.0061 1

"" "mg/kg dry "tert-Butylbenzene 0.28<0.28 0.0031 1

"" "mg/kg dry "Tetrachloroethene 0.28<0.28 0.0057 1

"" "mg/kg dry "Tetrahydrofuran 2.3 T-1<2.3 0.036 1

"" "mg/kg dry "Toluene 0.28<0.28 0.0040 1

"" "mg/kg dry "trans-1,2-Dichloroethene 0.28<0.28 0.0051 1

"" "mg/kg dry "trans-1,3-Dichloropropene 0.28<0.28 0.0072 1

"" "mg/kg dry "Trichloroethene 0.28<0.28 0.0043 1

"" "mg/kg dry "Trichlorofluoromethane 0.28<0.28 0.0070 1

"" "mg/kg dry "Vinyl chloride 0.28<0.28 0.0069 1



" " " "93.3 78.1-125 %Surrogate: Toluene-d8


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23191225

23191225.00





ResultSource

%REC%RECLimits %RPD


PERCENT SOLIDS - Quality ControlLegend Technical Services, Inc.

RL MDL

Batch B4D2305 - General Preparation


% Solids % 0.0086.0 86.0 20


% Solids % 3.4785.0 88.0 20


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23191225.00





ResultSource

%REC%RECLimits %RPD



RL MDL

Batch B4D2319 - EPA 5035 Soil (Purge and Trap)


1,1,1,2-Tetrachloroethane mg/kg wet< 0.25 0.25 0.0051

1,1,1-Trichloroethane mg/kg wet< 0.25 0.25 0.0056

1,1,2,2-Tetrachloroethane mg/kg wet< 0.25 0.25 0.0057

1,1,2-Trichloroethane mg/kg wet< 0.25 0.25 0.0073

1,1,2-Trichlorotrifluoroethane mg/kg wet< 0.25 0.25 0.0091

1,1-Dichloroethane mg/kg wet< 0.25 0.25 0.0033

1,1-Dichloroethene mg/kg wet< 0.25 0.25 0.0058

1,1-Dichloropropene mg/kg wet< 0.25 0.25 0.0055

1,2,3-Trichlorobenzene mg/kg wet< 0.50 0.50 0.0051

1,2,3-Trichloropropane mg/kg wet< 0.25 0.25 0.0046

1,2,4-Trichlorobenzene mg/kg wet< 0.50 0.50 0.0054

1,2,4-Trimethylbenzene mg/kg wet< 0.25 0.25 0.0033

1,2-Dibromo-3-chloropropane mg/kg wet< 0.50 0.50 0.0083

1,2-Dibromoethane (EDB) mg/kg wet< 0.25 0.25 0.0072

1,2-Dichlorobenzene mg/kg wet< 0.25 0.25 0.0034

1,2-Dichloroethane mg/kg wet< 0.25 0.25 0.0055

1,2-Dichloropropane mg/kg wet< 0.25 0.25 0.0048

1,3,5-Trimethylbenzene mg/kg wet< 0.25 0.25 0.0025





2-Butanone mg/kg wet< 2.0 2.0 0.014

2-Chlorotoluene mg/kg wet< 0.25 0.25 0.0022

4-Chlorotoluene mg/kg wet< 0.25 0.25 0.0036

Acetone mg/kg wet< 2.0 2.0 0.10

Allyl chloride mg/kg wet< 0.50 0.50 0.0083

Benzene mg/kg wet< 0.25 0.25 0.0027

Bromobenzene mg/kg wet< 0.25 0.25 0.0052

Bromochloromethane mg/kg wet< 0.25 0.25 0.0074

Bromodichloromethane mg/kg wet< 0.25 0.25 0.0043

Bromoform mg/kg wet< 0.50 0.50 0.0070

Bromomethane mg/kg wet< 0.50 0.50 0.0060

Carbon tetrachloride mg/kg wet< 0.25 0.25 0.0060

Chlorobenzene mg/kg wet< 0.25 0.25 0.0026

Chloroethane mg/kg wet< 0.25 0.25 0.0072

Chloroform mg/kg wet< 0.25 0.25 0.0023

Chloromethane mg/kg wet< 0.25 0.25 0.0067

cis-1,2-Dichloroethene mg/kg wet< 0.25 0.25 0.0018


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ResultSource

%REC%RECLimits %RPD



RL MDL



cis-1,3-Dichloropropene mg/kg wet< 0.25 0.25 0.0049

Dibromochloromethane mg/kg wet< 0.25 0.25 0.0046

Dibromomethane mg/kg wet< 0.25 0.25 0.0046

Dichlorodifluoromethane mg/kg wet< 0.50 0.50 0.0094

Dichlorofluoromethane mg/kg wet< 0.25 0.25 0.0079

Ethyl ether mg/kg wet< 0.50 0.50 0.0050

Ethylbenzene mg/kg wet< 0.25 0.25 0.0026

Hexachlorobutadiene mg/kg wet< 1.0 1.0 0.18

Isopropylbenzene mg/kg wet< 0.25 0.25 0.0017

m,p-Xylene mg/kg wet< 0.50 0.50 0.0097

Methyl isobutyl ketone mg/kg wet< 0.50 0.50 0.014

Methyl tert-butyl ether mg/kg wet< 0.25 0.25 0.0055

Methylene chloride mg/kg wet< 1.0 1.0 0.0039

Naphthalene mg/kg wet< 0.50 0.50 0.012

n-Butylbenzene mg/kg wet< 0.25 0.25 0.0055

n-Propylbenzene mg/kg wet< 0.25 0.25 0.0031

o-Xylene mg/kg wet< 0.25 0.25 0.0039

p-Isopropyltoluene mg/kg wet< 0.25 0.25 0.0030

sec-Butylbenzene mg/kg wet< 0.25 0.25 0.0035

Styrene mg/kg wet< 0.25 0.25 0.0054

tert-Butylbenzene mg/kg wet< 0.25 0.25 0.0027

Tetrachloroethene mg/kg wet< 0.25 0.25 0.0050

Tetrahydrofuran mg/kg wet< 2.0 2.0 0.032

Toluene mg/kg wet< 0.25 0.25 0.0035

trans-1,2-Dichloroethene mg/kg wet< 0.25 0.25 0.0045

trans-1,3-Dichloropropene mg/kg wet< 0.25 0.25 0.0063

Trichloroethene mg/kg wet< 0.25 0.25 0.0038

Trichlorofluoromethane mg/kg wet< 0.25 0.25 0.0062

Vinyl chloride mg/kg wet< 0.25 0.25 0.0061



ug/L 50.0 78.1-125Surrogate: Toluene-d8 93.946.9


1,1,2,2-Tetrachloroethane ug/L 50.0 75-12099.949.9

1,1-Dichloroethane ug/L 50.0 79.6-12089.544.8

1,1-Dichloroethene ug/L 50.0 78.3-12087.743.8

1,3,5-Trimethylbenzene ug/L 50.0 77-12099.849.9

1,4-Dichlorobenzene ug/L 50.0 75-12597.848.9

2-Chlorotoluene ug/L 50.0 75.9-12098.849.4


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ResultSource

%REC%RECLimits %RPD



RL MDL



Benzene ug/L 50.0 80-12090.845.4

Bromoform ug/L 50.0 80-12098.049.0

Chlorobenzene ug/L 50.0 80-12097.648.8

Chloroform ug/L 50.0 80-12088.544.3

Ethylbenzene ug/L 50.0 80-12098.849.4

n-Butylbenzene ug/L 50.0 75-12510552.4

n-Propylbenzene ug/L 50.0 75-12099.549.7

Toluene ug/L 50.0 80-12090.845.4

Trichloroethene ug/L 50.0 80-12090.945.4

Vinyl chloride ug/L 50.0 75-13099.049.5





1,1,2,2-Tetrachloroethane ug/L 50.0 75-12510451.8

1,1-Dichloroethane ug/L 50.0 78.7-12392.946.4

1,1-Dichloroethene ug/L 50.0 75.8-12190.945.4

1,3,5-Trimethylbenzene ug/L 50.0 75-12010250.9

1,4-Dichlorobenzene ug/L 50.0 75-12510251.0

2-Chlorotoluene ug/L 50.0 75-12010150.6

Benzene ug/L 50.0 80-12093.146.5

Bromoform ug/L 50.0 80-12099.849.9

Chlorobenzene ug/L 50.0 80-12096.448.2

Chloroform ug/L 50.0 80-12092.346.1

Ethylbenzene ug/L 50.0 80-12097.048.5

n-Butylbenzene ug/L 50.0 73.8-12510854.0

n-Propylbenzene ug/L 50.0 75-12099.849.9

Toluene ug/L 50.0 80-12092.146.1

Trichloroethene ug/L 50.0 80-12093.546.7

Vinyl chloride ug/L 50.0 74.8-13010251.1





1,1,2,2-Tetrachloroethane ug/L 50.0 75-125101 3.0050.3 20

1,1-Dichloroethane ug/L 50.0 78.7-12387.9 5.5143.9 20

1,1-Dichloroethene ug/L 50.0 75.8-12185.8 5.7842.9 20

1,3,5-Trimethylbenzene ug/L 50.0 75-120101 0.71150.5 20


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Project:

Project Number:

Project Manager:

23191225

23191225.00





ResultSource

%REC%RECLimits %RPD



RL MDL



1,4-Dichlorobenzene ug/L 50.0 75-12599.1 2.9249.5 20

2-Chlorotoluene ug/L 50.0 75-12099.2 1.9649.6 20

Benzene ug/L 50.0 80-12091.2 2.0745.6 20

Bromoform ug/L 50.0 80-12093.1 6.8746.6 20

Chlorobenzene ug/L 50.0 80-12092.5 4.1246.2 20

Chloroform ug/L 50.0 80-12088.0 4.7544.0 20

Ethylbenzene ug/L 50.0 80-12092.8 4.4746.4 20

n-Butylbenzene ug/L 50.0 73.8-125106 1.8853.0 20

n-Propylbenzene ug/L 50.0 75-12099.7 0.13549.8 20

Toluene ug/L 50.0 80-12090.0 2.4045.0 20

Trichloroethene ug/L 50.0 80-12091.4 2.2045.7 20

Vinyl chloride ug/L 50.0 74.8-13097.2 5.0648.6 20





Page 12 of 14


Project:

Project Number:

Project Manager:

23191225

23191225.00






Sample results reported on a dry weight basis


dry




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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88 Em

pire Drive

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aul, MN

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ax: 651-642-1239





in its entirety.P

age 14 of 14

phase ii-c environmental site investigation report

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