Giguere ISI report - Vermont · i EXECUTIVE SUMMARY Environmental Compliance Services, Inc. (ECS)...

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INITIAL SITE INVESTIGATION GIGUERE PROPERTY 23 LOOMIS STREET MONTPELIER, VT 05602 Prepared for: Mr. David Giguere 23 Loomis Street Montpelier, VT 05602 Project No. 08-209745.00 March 2009 Prepared by: ECS 1 Elm Street, Suite 3 Waterbury, VT 05676 tel: 802-241-4131 fax: 802-244-6894 www.ecsconsult.comax: 802-244-6894 www.ecsconsult.com

i

EXECUTIVE SUMMARY Environmental Compliance Services, Inc. (ECS) has conducted an initial site investigation (ISI) in response to petroleum contamination encountered during the decommissioning of an underground storage tank (UST) for the property located at 23 Loomis Street in Montpelier, Vermont. This UST was removed in November 2007 and 14 cubic yards of petroleum contaminated soils were shipped to ESMI of New Hampshire for thermal destruction. The ISI included the drilling of four borings and subsequent installation of four permanent monitoring wells (MW-1 through MW-4), and an evaluation of potential threats to nearby sensitive receptors. ECS’s findings related to this work are summarized as follows:

• No volatile organic compounds (VOCs) were detected above Vermont Groundwater Enforcement Standards in groundwater from any of the sampled wells. Total petroleum hydrocarbons - diesel range organics (TPH-DRO) were detected in source area monitoring well MW-3 at 1.7 mg/L.

• During the ISI, photoionization detector (PID) readings ranging from zero to 1.9 parts per million

(ppm) were observed from soil samples collected from the soil borings. The encountered soils generally consisted of fill material overlying native glaciolacustrine silts and clays. The highest PID reading was recorded in MW-3 in the former UST excavation, at a depth equivalent to the groundwater table. A soil sample from this interval was submitted for laboratory analysis for VOCs and TPH-DRO; no target analytes were detected above laboratory reporting limits.

• ECS performed a sensitive receptor survey and did not identify any threat to any potential

sensitive receptors. Based on the findings stated above, it is the opinion of ECS that the site meets the criteria of a Sites Management Activities Completed (SMAC) designation. ECS recommends properly abandoning monitoring wells MW-1, MW-2, MW-3, and MW-4. Following this activity, ECS would document the well abandonment in a short letter report to the VT DEC and request a SMAC designation.

TABLE OF CONTENTS EXECUTIVE SUMMARY ..........................................................................................................................................i 1.0 INTRODUCTION .......................................................................................................................................... 1

1.1 SITE DESCRIPTION AND PHYSICAL SETTING .............................................................................................. 1 1.2 SITE HISTORY & CONCEPTUAL SITE MODEL ............................................................................................ 1 1.3 OBJECTIVES AND SCOPE OF WORK ............................................................................................................ 1

2.0 INVESTIGATIVE PROCEDURES AND RESULTS ................................................................................. 3

2.1 SOIL BORING / MONITORING WELL INSTALLATION ................................................................................. 3 2.2 SOIL-SCREENING RESULTS ......................................................................................................................... 3 2.3 SOIL ANALYTICAL RESULTS ....................................................................................................................... 4 2.4 GROUNDWATER CHARACTERISTICS........................................................................................................... 4 2.5 GROUNDWATER SAMPLING AND ANALYSIS ............................................................................................... 4

3.0 SENSITIVE RECEPTOR SURVEY AND RISK ASSESSMENT .............................................................. 5

3.1 SENSITIVE RECEPTOR SURVEY ................................................................................................................... 5 3.2 RISK ASSESSMENT ....................................................................................................................................... 5

4.0 CONCLUSIONS ............................................................................................................................................. 6 5.0 RECOMMENDATIONS ............................................................................................................................... 7 FIGURES Figure 1 Site Location Map Figure 2 Site Plan Figure 3 Groundwater Elevation Map

Figure 4 Contaminant Distribution Map TABLES Table 1 Groundwater Elevation Data Table 2 Groundwater Summary Analytical Data APPENDICES

Appendix A Documentation of Soil Destruction – ESMI of New Hampshire Appendix B Boring Logs / Monitoring Well Construction Diagrams and Field Notes

Appendix C Photodocumentation Appendix D Soil Laboratory Analytical Report Appendix E Groundwater Laboratory Analytical Results

Initial Site Investigation, SMS site #2008-3793 Document No. 08-209745 23 Loomis Street March 2009 Montpelier, Vermont Page 1

1.0 INTRODUCTION This report details the results of an Initial Site Investigation (ISI) performed by Environmental Compliance Services (ECS) at a residential property located at 23 Loomis Street in Montpelier, Vermont (Figure 1). The property is owned by Mr. and Mrs. David Giguere. The ISI was performed following the discovery of petroleum contamination stemming from an underground storage tank (UST) that was removed in November 2007. This ISI included the drilling of four soil borings and subsequent installation of four monitoring wells (MW-1 through MW-4), and an evaluation of potential threats to nearby sensitive receptors. This work was conducted in general conformance with an ECS work plan dated 16 September 2008. 1.1 SITE DESCRIPTION AND PHYSICAL SETTING

The site is located in a residential neighborhood near downtown Montpelier, Vermont (see Figure 1). There are no water supply wells or springs onsite. According to the Vermont Agency of Natural Resources Internet Mapping Site of Private Wells, there are 15 private water supply wells located within a ½-mile of the site. The North Branch of the Winooski River is located approximately ¼ mile northwest of the site. 1.2 SITE HISTORY & CONCEPTUAL SITE MODEL On 9 November 2007, ECS supervised the removal of a 1,000 gallon fuel oil UST. Based on conversations with the property owner, the UST had not been in service since the 1970s. The previous home owner informed Mr. Giguere that the UST had been properly closed and was left in place. Upon removal of the UST, evidence of petroleum contamination was discovered above Vermont Department of Environmental Conservation (VT DEC) standards. Photoionization detector (PID) readings ranged up to 302 parts per million (ppm). After receiving approval from Mr. Ted Unkles of the VT DEC UST program, approximately 14 cubic yards of contaminated soil was excavated and shipped to ESMI of New Hampshire for thermal destruction. Documentation of soil destruction is included as Appendix A. ECS was unable to remove all contaminated soils due to the excavator’s limited reach and the proximity of the home to the excavation. Contaminated soils were left in place for these reasons. ECS recommended an initial site investigation to determine the extent of contamination remaining in place. 1.3 OBJECTIVES AND SCOPE OF WORK

The objectives of this initial site investigation were to:

• Evaluate the degree and extent of petroleum contamination in soil and groundwater in the vicinity of the UST;

• Qualitatively assess the risks to environmental and public health via relevant sensitive

receptors and potential contaminant migration pathways; and, • Identify appropriate monitoring and/or remedial actions based on the site conditions.


To accomplish these objectives, ECS has: • Supervised the advancement of four soil borings and subsequent installation of groundwater

monitoring wells (MW-1 through MW-4); • Screened subsurface soils from soil borings for the possible presence of volatile organic

compounds (VOCs) using a PID; • Identified sensitive receptors in the area, and assessed the risk posed by the contamination to

these potential receptors; and, • Prepared this summary report, which details the work performed, qualitatively assesses risks,

provides conclusions, and offers recommendations for further action.


2.0 INVESTIGATIVE PROCEDURES AND RESULTS

2.1 SOIL BORING / MONITORING WELL INSTALLATION

On 26 January 2009, ECS supervised the completion of four soil borings and subsequent installation of four monitoring wells (MW-1 through MW-4) to characterize contaminant and hydrogeologic conditions at the site. Soil boring and monitoring well locations are presented on Figure 2. Borings were installed using track-mounted Geoprobe™ hydraulic direct push methodology by Stone Environmental of Montpelier, Vermont. Soils were collected and screened continuously. During drilling activities, groundwater was encountered between approximately 10 - 12 feet below ground surface (bgs). The soils consisted of fill material overlying native glaciolacustrine silts and clays. Monitoring well MW-1 was located upgradient of the UST. MW-2 and MW-4 were located in the presumed downgradient direction from the UST. MW-3 was located within the former UST excavation. The monitoring wells were constructed with one-inch diameter polyvinyl chloride (PVC) casing and factory-slotted 0.010-inch slot screen. The screen sections were set approximately 5 feet above and below the observed groundwater level. Sections of solid PVC riser were added to bring the tops of the well casings to approximately 0.5 feet bgs. Clean silica #1 filter sand was placed in the borehole annulus around each well extending to approximately one foot above the slotted interval. A granular bentonite seal was set above the sand pack and filled the remainder of the annular space. Each well was capped with a watertight plug and a flush-mounted protective casing. The wells were developed using a bailer on 26 January 2009. All purge water was discharged to the ground surface in the vicinity of each well. On 10 February 2009, the monitoring wells and soil boring locations were surveyed relative to existing site features, with an azimuth accuracy of ± 1.0 feet and an elevation accuracy of ± 0.01 feet. Monitoring-well construction details are included on the soil boring and well construction logs in Appendix B. Field notes are also presented in Appendix B. Photodocumentation is presented in Appendix C. 2.2 SOIL-SCREENING RESULTS

During the soil boring installations, PID readings ranging from zero to 1.9 ppm were obtained from soil samples collected from the soil borings. The highest PID reading was recorded in the former UST excavation at the water table interface in MW-3. There was no visual, olfactory, or PID evidence of petroleum contamination observed in the other monitoring wells. An ECS field scientist screened soil samples from discrete intervals in each soil boring for the possible presence of VOCs using an Ion Science Phocheck 1000 portable PID. The PID was calibrated in the field with an isobutylene standard gas to a benzene reference. Soil samples were placed into a polyethylene bag, which was then sealed, agitated, and allowed to equilibrate. The PID probe was inserted into the headspace, and the highest reading was recorded. PID screening results are included on the boring logs in Appendix B.


2.3 SOIL ANALYTICAL RESULTS

A soil sample from source area well MW-3 was submitted for laboratory analysis via EPA method 8260 for the Vermont 8021B list of petroleum-related VOCs, and EPA method 8015 for TPH-DRO. No target analytes were detected above laboratory reporting limits. Soil laboratory results are included as Appendix D. The soil sample was transported under chain-of-custody procedures in an ice-filled cooler to Spectrum Analytical, Inc. of Agawam, Massachusetts.

2.4 GROUNDWATER CHARACTERISTICS Based on the hydrogeologic data, the groundwater in the unconfined surficial aquifer at the site appears to flow generally north. The average horizontal hydraulic gradient is 9 percent between MW-1 and MW-4. The vertical groundwater flow components at the site, and the hydraulic relationship between the shallow unconfined aquifer and the bedrock aquifer, are currently unknown. Fluid levels were measured in the monitoring wells on 10 February to calculate the groundwater flow direction. Depths to groundwater in the on-site monitoring wells ranged from 5.40 feet below top-of-casing in MW-1 to 8.59 feet below top-of-casing in MW-4. Static water-table elevations were computed for each monitoring well by subtracting the measured depth-to-water readings from the surveyed top-of-casing elevations, which are relative to an arbitrary site datum of 100.00 feet. Water-level measurements and elevation calculations are presented in Table 1. The groundwater flow direction map was prepared using these data (Figure 3). 2.5 GROUNDWATER SAMPLING AND ANALYSIS Groundwater samples were collected on 10 February 2009 from the four newly installed monitoring wells and analyzed for the possible presence of VOCs and TPH-DRO (Figure 4). No VOCs were detected above VGES in samples collected from any of the wells. Napthalene was detected in source area well MW-3 at 3.8 ug/L. MTBE was detected in downgradient well MW-4 at 4.4 ug/L. No target analytes were detected in MW-1 or MW-2. No TPH-DRO was detected in MW-1, MW-2, or MW-4. TPH-DRO was detected in MW-3 at 1.7 mg/L. Prior to sampling, monitoring wells were bailed of three times the well volume, or until dry, in accordance with ECS’ standard operating procedures. A trip blank and a blind duplicate sample from MW-3 were collected to ensure that adequate quality assurance/quality control (QA/QC) standards were maintained. All samples were transported under chain-of-custody procedures in an ice-filled cooler to Spectrum Analytical, Inc. of Agawam, Massachusetts, where they were analyzed for the possible presence of VOCs by EPA Method 8260 and for TPH-DRO by EPA Method 8015. Analytical results of the blind duplicate sample and the trip blank indicate that proper quality control and assurance measures were maintained during field activities. Analytical results are presented in Table 2 and the laboratory analytical reports are presented in Appendix E.


3.0 SENSITIVE RECEPTOR SURVEY AND RISK ASSESSMENT 3.1 SENSITIVE RECEPTOR SURVEY ECS conducted a survey to identify sensitive receptors in the vicinity of the former UST that could potentially be impacted by contamination associated with the site. The following sensitive receptors were identified in the vicinity of the property.

• The soil and groundwater beneath the former UST excavation area; • The indoor air quality of the 23 Loomis Street basement adjacent to the UST excavation • Underground utilities.

3.2 RISK ASSESSMENT ECS qualitatively assessed the risks that the residual soil and dissolved-phase subsurface contamination poses to the receptors identified above. In general, human exposure to petroleum-related contamination is possible through inhalation, ingestion, or direct contact while impacts to environmental receptors are due either to a direct release or contaminant migration through one receptor to another or along a preferential pathway.

• Soil and Groundwater Beneath the Former UST Excavation - Elevated VOCs were detected by PID in soil samples collected during the UST removal activities. Due to the depth of any residual petroleum, and the volume of clean imported material used to backfill the excavation, the risk of human exposure is very low. Groundwater analytical results indicate that the limited groundwater contamination is not migrating away from the source area in groundwater

• Indoor Air Quality of the residence at 23 Loomis Street – The basement indoor air of 23

Loomis Street was screened during UST removal activities. No evidence of petroleum impact to indoor air was measured with a PID.

• Underground Utilities –A storm water catch basin is located 100 feet to the north of the

source area. Because contamination has not migrated offsite, underground utilities have not likely been impacted.


4.0 CONCLUSIONS Based on the results of the site investigation described above, ECS concludes the following:

• No volatile organic compounds (VOCs) were detected above Vermont Groundwater Enforcement Standards in groundwater from any of the monitoring wells.

• During the ISI, PID readings ranging from zero to 1.9 parts per million (ppm) were observed from soil samples collected from the soil borings. The native soils generally consisted of fill material overlying native glaciolacustrine silts and clays. The highest PID reading was recorded in MW-3 in the former UST excavation, in the interval corresponding to the groundwater table. A soil sample from this interval was submitted for laboratory analysis for VOCs and TPH-DRO; no target analytes were detected above laboratory reporting limits.

• ECS performed a sensitive receptor survey and did not identify any threat to any potential

sensitive receptors.


5.0 RECOMMENDATIONS Based on the conclusions stated above, it is the opinion of ECS that the site meets the criteria of a Sites Management Activities Completed (SMAC) designation. ECS recommends properly abandoning monitoring wells MW-1, MW-2, MW-3, and MW-4. Following this activity, ECS would document the well abandonment in a short letter report to the VT DEC and request a SMAC designation.

FIGURES

Giguere Residence

Environmental Compliance Services, Inc.

www.ecsconsult.com

1 Elm Street, Suite 3

Waterbury, VT 05676

Phone 802.241.4131 Fax 802.244.6894

23 Loomis Street

Montpelier, VT 05602Figure 1: SITE LOCUS

Base Map: U.S. Geological Survey; Quadrangle Location: Montpelier, VT

Generated By: Kevin Collins

Lat/Lon: 42º 15' 40" NORTH, 72º 34' 9" WEST - UTM Coordinates: 18 700493 EAST / 4681638 NORTH

TABLES

Well ID

TOC Elevation

(ft)

Depth to Groundwater

below TOC (ft)Groundwater Elevation (ft)

MW-1 100.00 5.40 94.60MW-2 98.59 7.72 90.87MW-3 99.11 6.40 92.71MW-4 98.35 8.59 89.76

notes:TOC elevations relative to an arbitrary site datum of 100 ftTOC - top of casing

TABLE 1.Groundwater Elevation Data

10 February 2009

Giguere Property, 23 Loomis StreetMontpelier, Vermont

Well ID BenzeneEthyl-

benzene MTBENaph-

thalene TolueneTotal TMBs

Total Xylenes

TPH-DRO (mg/L)

MW-1 BRL<1.0 BRL<1.0 BRL<1.0 BRL<1.0 BRL<1.0 BRL<2.0 BRL<3.0 BRL<0.2MW-2 BRL<1.0 BRL<1.0 BRL<1.0 BRL<1.0 BRL<1.0 BRL<2.0 BRL<3.0 BRL<0.2MW-3 BRL<1.0 BRL<1.0 BRL<1.0 3.8 BRL<1.0 BRL<2.0 BRL<3.0 1.7MW-4 BRL<1.0 BRL<1.0 4.4 BRL<1.0 BRL<1.0 BRL<2.0 BRL<3.0 BRL<0.2

Duplicate (MW-3) BRL<1.0 BRL<1.0 BRL<1.0 3.8 BRL<1.0 BRL<2.0 BRL<3.0 --

Trip Blank BRL<1.0 BRL<1.0 BRL<1.0 BRL<1.0 BRL<1.0 BRL<2.0 BRL<3.0 --VGES 5 700 40 20 1000 350 10000 --

notes:

VGES - Vermont Groundwater Enforcement Standards

All values in ug/L (ppb) except TPH-DRO in mg/L (ppm)

Samples analyzed via EPA methods 8260B and 8015

TABLE 2.Groundwater Summary Analytical Data

10 February 2009

Giguere Property, 23 Loomis StreetMontpelier, Vermont

APPENDIX A DOCUMENTATION OF SOIL DESTRUCTION – ESMI OF NEW HAMPSHIRE

APPENDIX B BORING LOGS/MONITORING WELL CONSTRUCTION DIAGRAMS AND FIELD NOTES

1 ELM ST, SUITE 3 (802) 241-4131 WATERBURY, VERMONT 05676 (802) 244-6894 - FAX

BORING / WELL IDENTIFICATION: MW-1 SITE NAME: Giguere

SITE LOCATION: Montpelier, VT INSTALLATION DATE: 1/26/09

JOB NUMBER: 08-209745 WELL DEPTH: 15 ft BORING DEPTH: 20 ft ECS REPRESENTATIVE: Beth Erickson DEPTH TO WATER (DURING DRILLING): ~11 ft DRILLING COMPANY: Stone Environmental SCREEN DIAMETER: 1 inch DEPTH: 5 – 15 ft SCREEN TYPE/SIZE: 10 slot PVC SAMPLING METHOD: Geoprobe 6610 DT RISER DIAMETER: 1 inch DEPTH: 0 – 5 ft REFERENCE POINT (RP): Ground surface RISER TYPE/SIZE: PVC ELEVATION OF RP: Not measured REMARKS: Upgradient of source area, 4 ft uphill from porch corner

DEPTH (IN FEET)

SAMPLE DEPTH

RECOVERY (FT)

SAMPLE DESCRIPTION AND NOTES

PID (PPM)

WELL PROFILE

LEGEND

0 0 -5’ 4.75’

0 – 4’ sand fill 0.0

Concrete

1

4 – 5’ silty dense moist clay

0.1 Native

Material

2

Bentonite 3

Filter Sand

4

Riser 5 5 -10’ 5’

5 – 10’ moist massive very dense brown and grey clays 0.0

Screen

6

Water Level

7

8

9

10 10 – 15’ 5’ 10 -15’ wet massive grey clay

0.0

11 Wet at 11’ bgs

0.0

12

13

14

15 15 – 20’ 5’ Very wet massive grey clay

0.0

16 20’ – end of boring

17 End of Sampling = 20 feet Well set @ 15 feet

PROPORTIONS USED BLOW COUNT (COHESIVE SOILS) BLOW COUNT (GRANULAR SOILS) Notes: AND 33-50% <2 VERY SOFT 0-4 VERY LOOSE SOME 20-33% 2-4 SOFT 4-10 LOOSE PID used: Ion Science Phocheck 1000 LITTLE 10-20% 4-8 MEDIUM STIFF 10-30 MEDIUM DENSE TRACE 0-10% 8-15 STIFF 30-50 DENSE 15-30 VERY STIFF >50 VERY DENSE >30 HARD




JOB NUMBER: 08-209745 WELL DEPTH: 15 ft BORING DEPTH: 15 ft ECS REPRESENTATIVE: Beth Erickson DEPTH TO WATER (DURING DRILLING): 10 - 11 ft DRILLING COMPANY: Stone Environmental SCREEN DIAMETER: 1 inch DEPTH: 5 – 15 ft SCREEN TYPE/SIZE: 10 slot PVC SAMPLING METHOD: Geoprobe RISER DIAMETER: 1 inch DEPTH: 0 – 5 ft REFERENCE POINT (RP): Ground surface RISER TYPE/SIZE: PVC ELEVATION OF RP: Not measured REMARKS: Downgradient/downhill of source area at pine tree, ~ 15 – 20 ft from source area

DEPTH (IN FEET)

SAMPLE DEPTH

RECOVERY (FT)


PID (PPM)

WELL PROFILE

LEGEND

0 0 -5’ 5

0 – 3’ fill material, driveway gravel, etc 0.0

Concrete

1

3 -3.5 sand fill

Native

Material

2 3.5 – 4.5 dense brown to grey moist clay

Bentonite 3

4.5-5 thin sand layer, no odor, wet, perched on clay 0.0

Filter Sand

4

Riser 5 5 -10’ 5’

5 – 10’ dense grey clay some brown mottling, moist to wet 0.0

Screen

6

Water Level

7

8

9

10 10 – 15’ 5’ 10 -15’ wet very dense grey clay some mottling

0.0

11 Wet at 10 - 11’ bgs

0.0

12 15 – end of boring, no evidence of contamination

13

14

15

16






JOB NUMBER: 08-209745 WELL DEPTH: 15 ft BORING DEPTH: 15 ft ECS REPRESENTATIVE: Beth Erickson DEPTH TO WATER (DURING DRILLING): 10 - 11 ft DRILLING COMPANY: Stone Environmental SCREEN DIAMETER: 1 inch DEPTH: 5 – 15 ft SCREEN TYPE/SIZE: 10 slot PVC SAMPLING METHOD: Geoprobe 6610 DT RISER DIAMETER: 1 inch DEPTH: 0 – 5 ft REFERENCE POINT (RP): Ground surface RISER TYPE/SIZE: PVC ELEVATION OF RP: Not measured REMARKS: Source area well

DEPTH (IN FEET)

SAMPLE DEPTH

RECOVERY (FT)


PID (PPM)

WELL PROFILE

LEGEND

0 0 -5’ 3’

Sand fill, dry, sorted (from UST excavation backfill) 0.0

Concrete

1

Native

Material

2

Bentonite 3

Filter Sand

4

Riser 5 5 -10’ 2’

Wet sand fill, some black staining, weathered petroleum odor (hard to determine depth to water, very little recovery) 1.9

Screen

6

(Sample from 5 – 10’ interval submitted to lab for 8021B and 8015DRO)

Water Level

7

8

9

10 10 – 15’ 5 10 – 11’ sand fill, wet, weathered petroleum odor

0.5

11 11 -15’ dense silty wet grey clay, no odor, no evidence of

contamination 0.0

12 15 – end of boring

0.0

13

14

15

16






JOB NUMBER: 08-209745 WELL DEPTH: 15 ft BORING DEPTH: 15 ft ECS REPRESENTATIVE: Beth Erickson DEPTH TO WATER (DURING DRILLING): 10 - 11 ft DRILLING COMPANY: Stone Environmental SCREEN DIAMETER: 1 inch DEPTH: 5 – 15 ft SCREEN TYPE/SIZE: 10 slot PVC SAMPLING METHOD: Geoprobe 6610 DT RISER DIAMETER: 1 inch DEPTH: 0 – 5 ft REFERENCE POINT (RP): Ground surface RISER TYPE/SIZE: PVC ELEVATION OF RP: Not measured REMARKS: Downgradient of source area across driveway from MW-2

DEPTH (IN FEET)

SAMPLE DEPTH

RECOVERY (FT)


PID (PPM)

WELL PROFILE

LEGEND

0 0 -5’ 4’

0 – 0.5 gravel, black old asphalt or tar-like material (?) 0.0

Concrete

1

0.5 – 5 sorted sand (likely fill?) some wood chunks

Native

Material

2

Bentonite 3

Filter Sand

4

Riser 5 5 -10’ 5’

5 -8’ moist mottled grey clay 0.0

Screen

6

8 – 10’ moist coarse sand, some clay layers interbedded

0.0

Water Level

7

8

9

10 10 – 15’ 5 10 – 15’ mottled grey clay, massive

0.0

11 Wet at 12.5’

12 15 – end of boring

13

14

15

16



APPENDIX C PHOTODOCUMENTATION

Photo LogGiguere Property Initial Site Investigation ‐ 1/26/09

MW‐1, upgradient well, facing north toward Loomis StreetMW , upgradient well, facing north toward oomis Street

MW‐2, downgradient well, facing north (source area is by stairs and snowblower)

Photo LogGiguere Property Initial Site Investigation ‐ 1/26/09

MW‐3, source area well, facing north

MW‐4, downgradient well, across driveway from MW‐2

APPENDIX D SOIL LABORATORY ANALYTICAL REPORT

Laboratory Report

Report Date: 10-Feb-09 11:49

Final Report

Revised Report

Re-Issued Report

Environmental Compliance Services

1 Elm St. Suite 3

Waterbury, VT 05676

Attn: Beth Erickson

SPECTRUM ANALYTICAL, INC.Featuring

HANIBAL TECHNOLOGY

Project:

Project

Giguere - Montpelier, VT

08-209745.00

ü

Laboratory ID Client Sample ID Matrix Date Sampled Date Received

28-Jan-09 09:4626-Jan-09 13:00SoilSA90386-01 MW-3

Massachusetts # M-MA138/MA1110

Connecticut # PH-0777

Florida # E87600/E87936

Maine # MA138

New Hampshire # 2538

New Jersey # MA011/MA012

New York # 11393/11840

Pennsylvania # 68-04426/68-02924

Rhode Island # 98

USDA # S-51435

Vermont # VT-11393

Authorized by:

Hanibal C. Tayeh, Ph.D.

President/Laboratory Director

Technical Reviewer's Initial:

I attest that the information contained within the report has been reviewed for accuracy and checked against the quality control

requirements for each method. These results relate only to the sample(s) as received.

All applicable NELAC requirements have been met.

Spectrum Analytical holds certification in the State of New York for the analytes as indicated with an X in the "Cert." column within

this report. Please note that the State of New York does not offer certification for all analytes.

Please note that this report contains 6 pages of analytical data plus Chain of Custody document(s). When the Laboratory Report is

indicated as revised, this report supercedes any previously dated reports for the laboratory ID(s) referenced above. Where this report

identifies subcontracted analyses, copies of the subcontractor's test report is available upon request. This report may not be

reproduced, except in full, without written approval from Spectrum Analytical, Inc.

Spectrum Analytical, Inc. is a NELAC accredited laboratory organization and meets NELAC testing standards. Use of the NELAC logo however

does not insure that Spectrum is currently accredited for the specific method or analyte indicated. Please refer to our "Quality" web page at

www.spectrum-analytical.com for a full listing of our current certifications and fields of accreditation. States in which Spectrum Analytical, Inc.

holds NELAC certification are New York, New Hampshire, New Jersey and Florida. All analytical work for Volatile Organic and Air analysis are

transferred to and conducted at our 830 Silver Street location (NY-11840, FL-E87936 and NJ-MA012).

Please contact the Laboratory or Technical Director at 800-789-9115 with any questions regarding the data contained in this laboratory report.

CASE NARRATIVE:

The samples were received 2.0 degrees Celsius, please refer to the Chain of Custody for details specific to temperature upon receipt.

An infrared thermometer with a tolerance of +/- 2.0 degrees Celsius was used immediately upon receipt of the samples.

Headquarters: 11 Almgren Drive & 830 Silver Street • Agawam, MA 01001 • 1-800-789-9115 • 413-789-9018 • Fax 413-789-4076

www.spectrum-analytical.comPage 1 of 6

MW-3Sample Identification

Matrix26-Jan-09 13:00

Collection Date/Time Received28-Jan-09

Client Project #08-209745.00 Soil

SA90386-01

Result AnalyzedMethod Ref. Cert.BatchPreparedDilutionAnalyte(s)CAS No. Units *RDLFlag

Volatile Organic Compounds

VOC Soil Extraction 28-Jan-09 901187028-Jan-091N/AVOC Extraction Field extracted

Volatile Organic Compounds by 8260B

Prepared by method SW846 5030 Soil (high level)Initial weight: 15.11 g

SW846 8260B 09-Feb-09 902059209-Feb-0950µg/kg dry71-43-2 73.4Benzene BRL

" " ""50µg/kg dry106-93-4 73.41,2-Dibromoethane (EDB) BRL

" " ""50µg/kg dry107-06-2 73.41,2-Dichloroethane BRL

" " ""50µg/kg dry100-41-4 73.4Ethylbenzene BRL

" " ""50µg/kg dry1634-04-4 73.4Methyl tert-butyl ether BRL

" " ""50µg/kg dry91-20-3 73.4Naphthalene BRL

" " ""50µg/kg dry108-88-3 73.4Toluene BRL

" " ""50µg/kg dry95-63-6 73.41,2,4-Trimethylbenzene BRL

" " ""50µg/kg dry108-67-8 73.41,3,5-Trimethylbenzene BRL

" " ""50µg/kg dry179601-23-1 147m,p-Xylene BRL

" " ""50µg/kg dry95-47-6 73.4o-Xylene BRL

Surrogate recoveries:

70-130 %914-Bromofluorobenzene " " ""460-00-4

70-130 %101Toluene-d8 " " ""2037-26-5

70-130 %1001,2-Dichloroethane-d4 " " ""17060-07-0

70-130 %98Dibromofluoromethane " " ""1868-53-7

Extractable Petroleum Hydrocarbons

Diesel Range Organics

Prepared by method SW846 3550B

8015BM 04-Feb-09 902021703-Feb-091mg/kg dry68476-30-2 31.6Fuel Oil #2 BRL X

" " ""1mg/kg dry68476-31-3 31.6Fuel Oil #4 BRL X

" " ""1mg/kg dry68553-00-4 31.6Fuel Oil #6 BRL X

" " ""1mg/kg dryM09800000 31.6Motor Oil BRL X

" " ""1mg/kg dryJ00100000 31.6Aviation Fuel BRL X

" " ""1mg/kg dry 31.6Unidentified BRL X

" " ""1mg/kg dry 31.6Other Oil BRL X

" " ""1mg/kg dry 31.6Diesel Range Organics (DRO) BRL X


40-140 %931-Chlorooctadecane " " ""3386-33-2

General Chemistry Parameters

SM2540 G Mod. 28-Jan-09 901186028-Jan-091%% Solids 80.8

* Reportable Detection Limit BRL = Below Reporting Limit

This laboratory report is not valid without an authorized signature on the cover page .

Page 2 of 6

Result Units Level

Spike

Result

Source

%REC

%REC

Limits RPD

RPD

LimitFlag Analyte(s)

Volatile Organic Compounds - Quality Control

*RDL

Batch 9020592 - SW846 5030 Soil (high level)

Blank (9020592-BLK1)

Prepared & Analyzed: 09-Feb-09

Benzene µg/kg wet 1.0BRL

Chlorobenzene µg/kg wet 1.0BRL

1,2-Dibromoethane (EDB) µg/kg wet 1.0BRL

1,2-Dichloroethane µg/kg wet 1.0BRL

1,1-Dichloroethene µg/kg wet 1.0BRL

Ethylbenzene µg/kg wet 1.0BRL

Methyl tert-butyl ether µg/kg wet 1.0BRL

Naphthalene µg/kg wet 1.0BRL

Toluene µg/kg wet 1.0BRL

Trichloroethene µg/kg wet 1.0BRL

1,2,4-Trimethylbenzene µg/kg wet 1.0BRL

1,3,5-Trimethylbenzene µg/kg wet 1.0BRL

m,p-Xylene µg/kg wet 2.0BRL

o-Xylene µg/kg wet 1.0BRL

30.0 70-130Surrogate: 4-Bromofluorobenzene 9428.2 µg/kg wet

30.0 70-130Surrogate: Toluene-d8 10130.3 µg/kg wet

30.0 70-130Surrogate: 1,2-Dichloroethane-d4 10230.5 µg/kg wet

30.0 70-130Surrogate: Dibromofluoromethane 10130.3 µg/kg wet

LCS (9020592-BS1)


Benzene 20.0 70-13094µg/kg wet18.9

1,2-Dibromoethane (EDB) 20.0 70-13099µg/kg wet19.7

1,2-Dichloroethane 20.0 70-13095µg/kg wet19.1

Ethylbenzene 20.0 70-130101µg/kg wet20.2

Methyl tert-butyl ether 20.0 70-130108µg/kg wet21.5

Naphthalene 20.0 70-13096µg/kg wet19.3

Toluene 20.0 70-13094µg/kg wet18.7

1,2,4-Trimethylbenzene 20.0 70-130104µg/kg wet20.7

1,3,5-Trimethylbenzene 20.0 70-130104µg/kg wet20.8

m,p-Xylene 40.0 70-13099µg/kg wet39.6

o-Xylene 20.0 70-130103µg/kg wet20.6





LCS Dup (9020592-BSD1)


Benzene 20.0 3070-13096 1µg/kg wet19.1

1,2-Dibromoethane (EDB) 20.0 2570-130101 3µg/kg wet20.2

1,2-Dichloroethane 20.0 2570-13099 4µg/kg wet19.8

Ethylbenzene 20.0 3070-13099 2µg/kg wet19.8

Methyl tert-butyl ether 20.0 3070-130109 1µg/kg wet21.8

Naphthalene 20.0 3070-13097 0.2µg/kg wet19.3

Toluene 20.0 3070-13094 0.4µg/kg wet18.8

1,2,4-Trimethylbenzene 20.0 3070-13099 4µg/kg wet19.8

1,3,5-Trimethylbenzene 20.0 3070-130100 4µg/kg wet20.0

m,p-Xylene 40.0 3070-13096 4µg/kg wet38.2

o-Xylene 20.0 3070-13099 4µg/kg wet19.8





Page 3 of 6

Result Units Level

Spike

Result

Source

%REC

%REC

Limits RPD

RPD



*RDL

Batch 9020592 - SW846 5030 Soil (high level)





Matrix Spike (9020592-MS1)


Source: SA90386-01

Benzene 20.0 70-13078µg/kg dry BRL15.7

Chlorobenzene 20.0 70-130108µg/kg dry BRL21.6

1,1-Dichloroethene 20.0 70-13085µg/kg dry BRL16.9

Toluene 20.0 70-13085µg/kg dry BRL17.0

Trichloroethene 20.0 70-13083µg/kg dry BRL16.6

30.0 70-130Surrogate: 4-Bromofluorobenzene 10030.1 µg/kg dry

30.0 70-130Surrogate: Toluene-d8 10029.9 µg/kg dry

30.0 70-130Surrogate: 1,2-Dichloroethane-d4 9929.8 µg/kg dry

30.0 70-130Surrogate: Dibromofluoromethane 9428.0 µg/kg dry

Matrix Spike Dup (9020592-MSD1)


Source: SA90386-01

Benzene 20.0 3070-13089 13µg/kg dry BRL17.9

Chlorobenzene 20.0 3070-130117 8µg/kg dry BRL23.4

1,1-Dichloroethene 20.0 3070-13090 7µg/kg dry BRL18.1

Toluene 20.0 3070-13094 10µg/kg dry BRL18.8

Trichloroethene 20.0 3070-13092 10µg/kg dry BRL18.4

30.0 70-130Surrogate: 4-Bromofluorobenzene 10130.4 µg/kg dry

30.0 70-130Surrogate: Toluene-d8 10130.4 µg/kg dry

30.0 70-130Surrogate: 1,2-Dichloroethane-d4 10030.0 µg/kg dry

30.0 70-130Surrogate: Dibromofluoromethane 9628.9 µg/kg dry



Page 4 of 6

Result Units Level

Spike

Result

Source

%REC

%REC

Limits RPD

RPD


Extractable Petroleum Hydrocarbons - Quality Control

*RDL

Batch 9020217 - SW846 3550B


Prepared: 03-Feb-09 Analyzed: 04-Feb-09

Fuel Oil #2 mg/kg wet 13.3BRL



Motor Oil mg/kg wet 13.3BRL

Aviation Fuel mg/kg wet 13.3BRL

Unidentified mg/kg wet 13.3BRL

Other Oil mg/kg wet 13.3BRL

Diesel Range Organics (DRO) mg/kg wet 13.3BRL

C9 - C36 mg/kg wet 13.3BRL

3.33 40-140Surrogate: 1-Chlorooctadecane 832.76 mg/kg wet

LCS (9020217-BS2)


Fuel Oil #2 667 40-14080mg/kg wet 13.3533

C9 - C36 40-140mg/kg wet 13.3BRL

3.33 40-140Surrogate: 1-Chlorooctadecane 662.21 mg/kg wet

Duplicate (9020217-DUP2)


Source: SA90386-01

Fuel Oil #2 50mg/kg dry 31.5 BRLBRL



Motor Oil 50mg/kg dry 31.5 BRLBRL

Aviation Fuel 50mg/kg dry 31.5 BRLBRL

Unidentified 50mg/kg dry 31.5 BRLBRL

Other Oil 50mg/kg dry 31.5 BRLBRL

Diesel Range Organics (DRO) 50mg/kg dry 31.5 BRLBRL

3.95 40-140Surrogate: 1-Chlorooctadecane 973.82 mg/kg dry



Source: SA90386-01

Diesel Range Organics (DRO) 792 40-14077mg/kg dry 15.8 BRL607




Source: SA90386-01

Diesel Range Organics (DRO) 802 20040-14065 16mg/kg dry 16.0 BRL522


Result Units Level

Spike

Result

Source

%REC

%REC

Limits RPD

RPD


General Chemistry Parameters - Quality Control

*RDL

Batch 9011860 - General Preparation


Prepared & Analyzed: 28-Jan-09

Source: SA90369-15

% Solids 2020% 73.960.7



Page 5 of 6

Notes and Definitions

RPD Relative Percent Difference

dry Sample results reported on a dry weight basis

BRL Below Reporting Limit - Analyte NOT DETECTED at or above the reporting limit

Not ReportedNR

A plus sign (+) in the Method Reference column indicates the method is not accredited by NELAC.

Interpretation of Total Petroleum Hydrocarbon Report

Petroleum identification is determined by comparing the GC fingerprint obtained from the sample with a library of GC fingerprints

obtained from analyses of various petroleum products. Possible match categories are as follows:

Gasoline - includes regular, unleaded, premium, etc.

Fuel Oil #2 - includes home heating oil, #2 fuel oil, and diesel

Fuel Oil #4 - includes #4 fuel oil

Fuel Oil #6 - includes #6 fuel oil and bunker "C" oil

Motor Oil - includes virgin and waste automobile oil

Ligroin - includes mineral spirits, petroleum naphtha, vm&p naphtha

Aviation Fuel - includes kerosene, Jet A and JP-4

Other Oil - includes lubricating and cutting oil, and silicon oil

At times, the unidentified petroleum product is quantified using a calibration that most closely approximates the distribution of

compounds in the sample. When this occurs, the result is qualified as *TPH (Calculated as).

Laboratory Control Sample (LCS): A known matrix spiked with compound(s) representative of the target analytes, which is used to

document laboratory performance.

Matrix Duplicate: An intra-laboratory split sample which is used to document the precision of a method in a given sample matrix.

Matrix Spike: An aliquot of a sample spiked with a known concentration of target analyte(s). The spiking occurs prior to sample

preparation and analysis. A matrix spike is used to document the bias of a method in a given sample matrix.

Method Blank: An analyte-free matrix to which all reagents are added in the same volumes or proportions as used in sample

processing. The method blank should be carried through the complete sample preparation and analytical procedure. The method

blank is used to document contamination resulting from the analytical process.

Method Detection Limit (MDL): The minimum concentration of a substance that can be measured and reported with 99%

confidence that the analyte concentration is greater than zero and is determined from analysis of a sample in a given matrix type

containing the analyte.

Reportable Detection Limit (RDL): The lowest concentration that can be reliably achieved within specified limits of precision and

accuracy during routine laboratory operating conditions. For many analytes the RDL analyte concentration is selected as the lowest

non-zero standard in the calibration curve. While the RDL is approximately 5 to 10 times the MDL, the RDL for each sample takes

into account the sample volume/weight, extract/digestate volume, cleanup procedures and, if applicable, dry weight correction.

Sample RDLs are highly matrix-dependent.

Surrogate: An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical

process, but which is not normally found in environmental samples. These compounds are spiked into all blanks, standards, and

samples prior to analysis. Percent recoveries are calculated for each surrogate.

Validated by:


Rebecca Merz



Page 6 of 6

APPENDIX E GROUNDWATER LABORATORY ANALYTICAL RESULTS

Laboratory Report

Report Date: 25-Feb-09 17:41

Final Report

Revised Report

Re-Issued Report

Environmental Compliance Services

1 Elm St. Suite 3

Waterbury, VT 05676

Attn: Beth Erickson

SPECTRUM ANALYTICAL, INC.Featuring

HANIBAL TECHNOLOGY

Project:

Project

Giguere - Montpelier, VT

08-209745.00

ü

Laboratory ID Client Sample ID Matrix Date Sampled Date Received

11-Feb-09 10:1010-Feb-09 00:00Ground WaterSA90895-01 Trip Blank

11-Feb-09 10:1010-Feb-09 00:00Ground WaterSA90895-02 Duplicate

11-Feb-09 10:1010-Feb-09 10:35Ground WaterSA90895-03 MW-1




Massachusetts # M-MA138/MA1110

Connecticut # PH-0777

Florida # E87600/E87936

Maine # MA138

New Hampshire # 2538

New Jersey # MA011/MA012

New York # 11393/11840

Pennsylvania # 68-04426/68-02924

Rhode Island # 98

USDA # S-51435

Vermont # VT-11393

Authorized by:


President/Laboratory Director

Technical Reviewer's Initial:

I attest that the information contained within the report has been reviewed for accuracy and checked against the quality control

requirements for each method. These results relate only to the sample(s) as received.

All applicable NELAC requirements have been met.

Spectrum Analytical holds certification in the State of New York for the analytes as indicated with an X in the "Cert." column within

this report. Please note that the State of New York does not offer certification for all analytes.

Please note that this report contains 13 pages of analytical data plus Chain of Custody document(s). When the Laboratory Report is

indicated as revised, this report supercedes any previously dated reports for the laboratory ID(s) referenced above. Where this report

identifies subcontracted analyses, copies of the subcontractor's test report is available upon request. This report may not be

reproduced, except in full, without written approval from Spectrum Analytical, Inc.

Spectrum Analytical, Inc. is a NELAC accredited laboratory organization and meets NELAC testing standards. Use of the NELAC logo however

does not insure that Spectrum is currently accredited for the specific method or analyte indicated. Please refer to our "Quality" web page at

www.spectrum-analytical.com for a full listing of our current certifications and fields of accreditation. States in which Spectrum Analytical, Inc.

holds NELAC certification are New York, New Hampshire, New Jersey and Florida. All analytical work for Volatile Organic and Air analysis are

transferred to and conducted at our 830 Silver Street location (NY-11840, FL-E87936 and NJ-MA012).

Please contact the Laboratory or Technical Director at 800-789-9115 with any questions regarding the data contained in this laboratory report.

Headquarters: 11 Almgren Drive & 830 Silver Street • Agawam, MA 01001 • 1-800-789-9115 • 413-789-9018 • Fax 413-789-4076

www.spectrum-analytical.comPage 1 of 13

CASE NARRATIVE:

The samples were received 5.6 degrees Celsius, please refer to the Chain of Custody for details specific to temperature upon receipt.

An infrared thermometer with a tolerance of +/- 2.0 degrees Celsius was used immediately upon receipt of the samples.

See below for any non-conformances and issues relating to quality control samples and/or sample analysis/matrix.

8015BM

Samples:

SA90895-04 MW-2

Elevated Reporting Limits due to limited sample volume.

SA90895-06 MW-4

Elevated Reporting Limits due to limited sample volume.

SW846 8260B

Laboratory Control Samples:

9021242-BS1

LCS/LCSD were analyzed in place of MS/MSD.

9021242-BSD1

LCS/LCSD were analyzed in place of MS/MSD.



Page 2 of 13

Trip BlankSample Identification

Matrix10-Feb-09 00:00

Collection Date/Time Received11-Feb-09

Client Project #08-209745.00 Ground Water

SA90895-01




Prepared by method SW846 5030 Water MS

SW846 8260B 17-Feb-09 902110617-Feb-091µg/l71-43-2 1.0Benzene BRL

" " ""1µg/l106-93-4 1.01,2-Dibromoethane (EDB) BRL

" " ""1µg/l107-06-2 1.01,2-Dichloroethane BRL

" " ""1µg/l100-41-4 1.0Ethylbenzene BRL

" " ""1µg/l1634-04-4 1.0Methyl tert-butyl ether BRL

" " ""1µg/l91-20-3 1.0Naphthalene BRL

" " ""1µg/l108-88-3 1.0Toluene BRL

" " ""1µg/l95-63-6 1.01,2,4-Trimethylbenzene BRL


" " ""1µg/l179601-23-1 2.0m,p-Xylene BRL

" " ""1µg/l95-47-6 1.0o-Xylene BRL



70-130 %103Toluene-d8 " " ""2037-26-5





Page 3 of 13

DuplicateSample Identification




SA90895-02










" " ""1µg/l91-20-3 1.0Naphthalene 3.8

" " ""1µg/l108-88-3 1.0Toluene BRL



" " ""1µg/l179601-23-1 2.0m,p-Xylene BRL

" " ""1µg/l95-47-6 1.0o-Xylene BRL



70-130 %100Toluene-d8 " " ""2037-26-5





Page 4 of 13





SA90895-03











" " ""1µg/l108-88-3 1.0Toluene BRL



" " ""1µg/l179601-23-1 2.0m,p-Xylene BRL

" " ""1µg/l95-47-6 1.0o-Xylene BRL



70-130 %103Toluene-d8 " " ""2037-26-5





Prepared by method SW846 3510C

8015BM 17-Feb-09 902097913-Feb-091mg/l68476-30-2 0.2Fuel Oil #2 BRL

" " ""1mg/l68476-31-3 0.2Fuel Oil #4 BRL

" " ""1mg/l68553-00-4 0.2Fuel Oil #6 BRL

" " ""1mg/lM09800000 0.2Motor Oil BRL

" " ""1mg/lJ00100000 0.2Aviation Fuel BRL

" " ""1mg/l 0.2Unidentified BRL

" " ""1mg/l 0.2Other Oil BRL

" " ""1mg/l 0.2Diesel Range Organics (DRO) BRL





Page 5 of 13





SA90895-04











" " ""1µg/l108-88-3 1.0Toluene BRL



" " ""1µg/l179601-23-1 2.0m,p-Xylene BRL

" " ""1µg/l95-47-6 1.0o-Xylene BRL



70-130 %102Toluene-d8 " " ""2037-26-5




Diesel Range Organics R02



" " ""1mg/l68476-31-3 0.3Fuel Oil #4 BRL

" " ""1mg/l68553-00-4 0.3Fuel Oil #6 BRL










Page 6 of 13





SA90895-05










" " ""1µg/l91-20-3 1.0Naphthalene 3.8

" " ""1µg/l108-88-3 1.0Toluene BRL



" " ""1µg/l179601-23-1 2.0m,p-Xylene BRL

" " ""1µg/l95-47-6 1.0o-Xylene BRL



70-130 %99Toluene-d8 " " ""2037-26-5






8015BM 17-Feb-09 902097913-Feb-091mg/l68476-30-2 0.2Fuel Oil #2 Calculated as

" " ""1mg/l68476-31-3 0.2Fuel Oil #4 BRL

" " ""1mg/l68553-00-4 0.2Fuel Oil #6 BRL



" " ""1mg/l 0.2Unidentified 1.7

" " ""1mg/l 0.2Other Oil Calculated as

" " ""1mg/l 0.2Diesel Range Organics (DRO) 1.7





Page 7 of 13





SA90895-06









" " ""1µg/l1634-04-4 1.0Methyl tert-butyl ether 4.4


" " ""1µg/l108-88-3 1.0Toluene BRL



" " ""1µg/l179601-23-1 2.0m,p-Xylene BRL

" " ""1µg/l95-47-6 1.0o-Xylene BRL



70-130 %103Toluene-d8 " " ""2037-26-5




Diesel Range Organics R02



" " ""1mg/l68476-31-3 0.4Fuel Oil #4 BRL

" " ""1mg/l68553-00-4 0.4Fuel Oil #6 BRL










Page 8 of 13

Result Units Level

Spike

Result

Source

%REC

%REC

Limits RPD

RPD



*RDL

Batch 9021106 - SW846 5030 Water MS



Benzene µg/l 1.0BRL

Chlorobenzene µg/l 1.0BRL

1,2-Dibromoethane (EDB) µg/l 1.0BRL

1,2-Dichloroethane µg/l 1.0BRL

1,1-Dichloroethene µg/l 1.0BRL

Ethylbenzene µg/l 1.0BRL

Methyl tert-butyl ether µg/l 1.0BRL

Naphthalene µg/l 1.0BRL

Toluene µg/l 1.0BRL

Trichloroethene µg/l 1.0BRL

1,2,4-Trimethylbenzene µg/l 1.0BRL


m,p-Xylene µg/l 2.0BRL

o-Xylene µg/l 1.0BRL

50.0 70-130Surrogate: 4-Bromofluorobenzene 9447.0 µg/l

50.0 70-130Surrogate: Toluene-d8 10050.2 µg/l

50.0 70-130Surrogate: 1,2-Dichloroethane-d4 10854.0 µg/l

50.0 70-130Surrogate: Dibromofluoromethane 10050.1 µg/l

LCS (9021106-BS1)


Benzene 20.0 70-130107µg/l21.3

1,2-Dibromoethane (EDB) 20.0 70-130111µg/l22.2

1,2-Dichloroethane 20.0 70-130114µg/l22.8

Ethylbenzene 20.0 70-130108µg/l21.6

Methyl tert-butyl ether 20.0 70-130110µg/l22.0

Naphthalene 20.0 70-130100µg/l20.0

Toluene 20.0 70-130103µg/l20.7

1,2,4-Trimethylbenzene 20.0 70-130111µg/l22.3


m,p-Xylene 40.0 70-130112µg/l44.8

o-Xylene 20.0 70-130115µg/l23.0







Benzene 20.0 3070-130100 7µg/l20.0

1,2-Dibromoethane (EDB) 20.0 2570-130108 3µg/l21.5

1,2-Dichloroethane 20.0 2570-130108 6µg/l21.6

Ethylbenzene 20.0 3070-130101 7µg/l20.2

Methyl tert-butyl ether 20.0 3070-130104 5µg/l20.9

Naphthalene 20.0 3070-13095 5µg/l19.0

Toluene 20.0 3070-13096 7µg/l19.2

1,2,4-Trimethylbenzene 20.0 3070-130105 6µg/l21.1


m,p-Xylene 40.0 3070-130102 10µg/l40.6

o-Xylene 20.0 3070-130107 7µg/l21.4





Page 9 of 13

Result Units Level

Spike

Result

Source

%REC

%REC

Limits RPD

RPD



*RDL








Source: SA90895-06

Benzene 20.0 70-130105µg/l BRL21.0

Chlorobenzene 20.0 70-130122µg/l BRL24.5

1,1-Dichloroethene 20.0 70-130117µg/l BRL23.4

Toluene 20.0 70-130109µg/l BRL21.8

Trichloroethene 20.0 70-130109µg/l BRL21.8







Source: SA90895-06

Benzene 20.0 3070-130103 2µg/l BRL20.6

Chlorobenzene 20.0 3070-130119 3µg/l BRL23.8

1,1-Dichloroethene 20.0 3070-130116 1µg/l BRL23.2

Toluene 20.0 3070-130107 2µg/l BRL21.5

Trichloroethene 20.0 3070-130108 0.9µg/l BRL21.6








Benzene µg/l 1.0BRL

Chlorobenzene µg/l 1.0BRL

1,2-Dibromoethane (EDB) µg/l 1.0BRL

1,2-Dichloroethane µg/l 1.0BRL

1,1-Dichloroethene µg/l 1.0BRL

Ethylbenzene µg/l 1.0BRL

Methyl tert-butyl ether µg/l 1.0BRL

Naphthalene µg/l 1.0BRL

Toluene µg/l 1.0BRL

Trichloroethene µg/l 1.0BRL



m,p-Xylene µg/l 2.0BRL

o-Xylene µg/l 1.0BRL





LCS (9021242-BS1) QM10


Benzene 20.0 70-13095µg/l19.0

1,2-Dibromoethane (EDB) 20.0 70-13096µg/l19.1

1,2-Dichloroethane 20.0 70-13093µg/l18.5



Page 10 of 13

Result Units Level

Spike

Result

Source

%REC

%REC

Limits RPD

RPD



*RDL


LCS (9021242-BS1) QM10


Ethylbenzene 20.0 70-130100µg/l20.0

Methyl tert-butyl ether 20.0 70-13086µg/l17.3

Naphthalene 20.0 70-13089µg/l17.8

Toluene 20.0 70-13095µg/l18.9



m,p-Xylene 40.0 70-130102µg/l41.0

o-Xylene 20.0 70-130104µg/l20.8





LCS Dup (9021242-BSD1) QM10


Benzene 20.0 3070-13089 6µg/l17.9

1,2-Dibromoethane (EDB) 20.0 2570-13094 2µg/l18.8

1,2-Dichloroethane 20.0 2570-13091 2µg/l18.2

Ethylbenzene 20.0 3070-13095 5µg/l19.0

Methyl tert-butyl ether 20.0 3070-13086 0.6µg/l17.2

Naphthalene 20.0 3070-13084 6µg/l16.7

Toluene 20.0 3070-13090 4µg/l18.1



m,p-Xylene 40.0 3070-13098 5µg/l39.0

o-Xylene 20.0 3070-130100 4µg/l20.0







Page 11 of 13

Result Units Level

Spike

Result

Source

%REC

%REC

Limits RPD

RPD


Extractable Petroleum Hydrocarbons - Quality Control

*RDL

Batch 9020979 - SW846 3510C



Fuel Oil #2 mg/l 0.1BRL



Motor Oil mg/l 0.1BRL

Aviation Fuel mg/l 0.1BRL

Unidentified mg/l 0.1BRL

Other Oil mg/l 0.1BRL

Diesel Range Organics (DRO) mg/l 0.1BRL

C9 - C36 mg/l 0.01BRL

0.0500 40-140Surrogate: 1-Chlorooctadecane 570.0285 mg/l

LCS (9020979-BS2)


Fuel Oil #2 10.0 40-140106mg/l 0.110.6

C9 - C36 40-140mg/l 0.01BRL




Source: SA90937-19

Fuel Oil #2 50mg/l 0.2 BRLBRL



Motor Oil 50mg/l 0.2 BRLBRL

Aviation Fuel 50mg/l 0.2 BRLBRL

Unidentified 50mg/l 0.2 BRLBRL

Other Oil 50mg/l 0.2 BRLBRL

Diesel Range Organics (DRO) 50mg/l 0.2 BRLBRL




Page 12 of 13

Notes and Definitions

LCS/LCSD were analyzed in place of MS/MSD.QM10

Elevated Reporting Limits due to limited sample volume.R02

RPD Relative Percent Difference

dry Sample results reported on a dry weight basis

BRL Below Reporting Limit - Analyte NOT DETECTED at or above the reporting limit

Not ReportedNR

A plus sign (+) in the Method Reference column indicates the method is not accredited by NELAC.

Interpretation of Total Petroleum Hydrocarbon Report

Petroleum identification is determined by comparing the GC fingerprint obtained from the sample with a library of GC fingerprints

obtained from analyses of various petroleum products. Possible match categories are as follows:

Gasoline - includes regular, unleaded, premium, etc.

Fuel Oil #2 - includes home heating oil, #2 fuel oil, and diesel

Fuel Oil #4 - includes #4 fuel oil

Fuel Oil #6 - includes #6 fuel oil and bunker "C" oil

Motor Oil - includes virgin and waste automobile oil

Ligroin - includes mineral spirits, petroleum naphtha, vm&p naphtha

Aviation Fuel - includes kerosene, Jet A and JP-4

Other Oil - includes lubricating and cutting oil, and silicon oil

At times, the unidentified petroleum product is quantified using a calibration that most closely approximates the distribution of

compounds in the sample. When this occurs, the result is qualified as *TPH (Calculated as).

Laboratory Control Sample (LCS): A known matrix spiked with compound(s) representative of the target analytes, which is used to

document laboratory performance.

Matrix Duplicate: An intra-laboratory split sample which is used to document the precision of a method in a given sample matrix.

Matrix Spike: An aliquot of a sample spiked with a known concentration of target analyte(s). The spiking occurs prior to sample

preparation and analysis. A matrix spike is used to document the bias of a method in a given sample matrix.

Method Blank: An analyte-free matrix to which all reagents are added in the same volumes or proportions as used in sample

processing. The method blank should be carried through the complete sample preparation and analytical procedure. The method

blank is used to document contamination resulting from the analytical process.

Method Detection Limit (MDL): The minimum concentration of a substance that can be measured and reported with 99%

confidence that the analyte concentration is greater than zero and is determined from analysis of a sample in a given matrix type

containing the analyte.

Reportable Detection Limit (RDL): The lowest concentration that can be reliably achieved within specified limits of precision and

accuracy during routine laboratory operating conditions. For many analytes the RDL analyte concentration is selected as the lowest

non-zero standard in the calibration curve. While the RDL is approximately 5 to 10 times the MDL, the RDL for each sample takes

into account the sample volume/weight, extract/digestate volume, cleanup procedures and, if applicable, dry weight correction.

Sample RDLs are highly matrix-dependent.

Surrogate: An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical

process, but which is not normally found in environmental samples. These compounds are spiked into all blanks, standards, and

samples prior to analysis. Percent recoveries are calculated for each surrogate.

Validated by:


Nicole Leja



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