site investigation · atc group services llc (atc) was retained by j&b international trucks...

Site Investigation

ATC Project No. 280EM00051

Prepared for J&B International Trucks Mr. Bill Cleary 964 Hercules Drive Colchester, Vermont September 6, 2016

Site Investigation

964 Hercules Drive Colchester, Vermont ATC Project No. 280EM00051

J&B International Site Investigation

September 6, 2016 ATC ii

Document Information Prepared for J&B International Trucks Project Name Insert project name File Reference Peoples United_JB International_Ph II Rpt.docx Job Reference ATC Project No. 280EM00051 Date September 6, 2016

Contact Information ATC Group Services LLC 171 Commerce Road Williston, Vermont 05495 Telephone: 802.862.1980 Facsimile: 802.862.1405 www.atcgroupservices.com

Document Control

Version Date Author Author Initials Reviewer Date Reviewer

Initials

Draft 9/6/2016 Adam Forman af Robert Montgomery 9/6/2016 rm

© ATC 2015. Copyright in the whole and every part of this document belongs to ATC and may not be used, sold, transferred, copied or reproduced in whole or in part in any manner or form or in or on any media to any person other than by agreement with ATC.

This document is produced by ATC solely for the benefit and use by the client in accordance with the terms of the engagement. ATC does not and shall not assume any responsibility or liability whatsoever to any third party arising out of any use or reliance by any third party on the content of this document.


September 6, 2016 ATC iii

Executive Summary ATC Group Services LLC (ATC) was retained by J&B International Trucks (Client) to perform a Site Investigation at 964 Hercules Drive, Colchester, Vermont (herein referred to as “the property”). A previous Transaction Screen was completed at the property in 2016 that identified potential environmental concerns (PECs). The PECs identified at the property included potential soil and groundwater contamination associated with former waste oil underground storage tanks (USTs), significant staining throughout the truck repair shop, stained soils and petroleum odor in the vicinity of the diesel fuel dispenser, and an existing onsite 10,000-gallon diesel fuel UST.

A Phase II ESA was completed at the site dated April 20, 2016 which identified the existing diesel fuel UST to be in compliance with the State UST standards. The subsurface investigation included eight soil borings and four temporary groundwater monitoring wells. The soil and groundwater sampling results indicate the presence of metals, VOCs, and SVOCs. The RCRA metals: arsenic, chromium, and lead were found in groundwater samples above the Vermont Groundwater Enforcement Standard (VGES). The VOC: vinyl chloride was reported above the VGES in one of the groundwater samples. Based on the previous work conducted at the property, the VT DEC provided a response letter dated May 24, 2016 that requested additional investigation activities. ATC prepared a Proposal for Environmental Consulting Services dated June 1, 2016, which was approved by the VT DEC in a letter dated June 9, 2016. The objective of the investigation included evaluation of the following:

1. Review past and current business practices at the property and surrounding properties that may have releases arsenic, lead or chrome.

2. A subsurface investigation to further define the degree and extent of potential subsurface contamination at the property.

The following summarizes conclusions from this investigation.

1. The property has operated as a truck sales and service business since 1987 and utilized materials that include the metals, arsenic, chromium, and lead; however, Mr. Cleary does not know of a release at the property and no visual evidence of a release was identified by ATC.

2. The property is located in an industrial area with commercial and manufacturing businesses upgradient and cross gradient of the property. The area includes numerous Vermont Hazardous Waste Sites, including a site that historically discharged heavy metals, VOCs, and SVOCs on a nearby parcel located to the north of the property. The possibility that an upgradient off-site parcel contributed to the subsurface contamination at the subject property cannot be ruled out.

3. ATC utilized a private utility locator to identify buried utilities and clear proposed boring locations. A majority of buried utilities are located on the northeastern side of the property. Additionally, sewer utility corridors are located along the eastern side of the property and connect to a pump station located on the southeastern corner of the property.

4. Six soil borings were advanced on the property and were completed as groundwater monitoring wells to a depth of 12 feet bgs. Field screening of the soils during the boring advancement did not identify VOC impacted soils.

5. Groundwater samples were collected from the six monitoring wells and submitted for laboratory analysis of VOCs, and the metals: arsenic, chromium, and lead. The results indicated vinyl chloride and tetrachloroethene were detected in two wells, but the concentrations were below the VT GWES. Sample results also indicated arsenic concentrations exceeded the VT GWES in four of the six groundwater samples and lead concentrations exceeded the VT GWES in three of the six groundwater monitoring wells. The upgradient monitoring well MW-10 indicated concentrations of arsenic and lead that exceeded


September 6, 2016 ATC iv

the VT GWES. Chromium concentrations did not exceed the VT GWES in any of the six samples collected.

6. The groundwater sampling results indicate chlorinated VOCs at low concentrations below the VT GWES are located on the central portion of the property and do not appear to extend toward the marsh areas on the southern and eastern sides of the property. The metals: arsenic and lead are located on the central portion of the property and in the upgradient monitoring well. The upgradient sample indicates potential for the source to be from an upgradient off-site location.

Based on the findings of this Phase II ESA, ATC offers the following recommendations.

> ATC recommends a confirmatory round of groundwater sampling from the existing monitoring wells in the spring of 2017.


September 6, 2016 ATC v

Table of Contents Executive Summary ........................................................................................................................... iii 1 Introduction ................................................................................................................................ 1

1.1 Purpose ........................................................................................................................................... 1 1.2 Background Review ........................................................................................................................ 1

2 Review Potential Sources of Metals ......................................................................................... 2 2.1 Current and Past Business Practices at the Site ............................................................................ 2 2.2 Surrounding Area ............................................................................................................................ 2

3 Phase II Investigation Activities ................................................................................................ 3 3.1 Property Preparation ....................................................................................................................... 3 3.2 Private Utility Locator ...................................................................................................................... 3 3.3 Drilling Activities .............................................................................................................................. 3 3.4 Soil Sample Field Screening Results .............................................................................................. 3 3.5 Groundwater Sample Results ......................................................................................................... 4

4 Conceptual Site Model .............................................................................................................. 5

5 Conclusions and Recommendations ....................................................................................... 7 5.1 Conclusions ..................................................................................................................................... 7 5.2 Recommendations .......................................................................................................................... 7

6 Qualifications ............................................................................................................................. 8

Figures

Figure 1 Site Vicinity Diagram

Figure 2 Site Diagram

Figure 3 Groundwater Contour Diagram

Figure 4 Groundwater Concentration Diagram

Tables

Table 1 Groundwater Elevation Data

Table 2 Groundwater Sample Results

Appendices

Appendix A Boring Logs

Appendix B Groundwater Laboratory Report


September 6, 2016 ATC 1

1 Introduction

1.1 Purpose ATC was contracted by J&B International Trucks (J&B) (the Client) to conduct a review of potential sources of metals and subsurface investigation activities at the J&B International Trucks facility located at 964 Hercules Drive in Colchester, Vermont (the site). A Property Plan is included as Figure 1. The work was conducted per the ATC Proposal for Environmental Consulting services dated June 1, 2016 which was approved by the VT DEC in a letter dated June 9, 2016.

1.2 Background Review The property is a 6.97 acre parcel of land that is developed with a two-story 17,600 square foot building utilized for truck sales and services. The property is an active Vermont Hazardous Waste site identified as site number 90-634. A Subsurface Investigation and Groundwater Monitoring Report from 2001 indicated that contamination was discovered in the vicinity of waste oil USTs removed from the property. The first waste oil UST was removed in 1990 and a limited investigation was conducted at that time. A new waste oil UST was installed in the same location, which was later removed in 2000. A soil investigation in 2000 revealed soil contamination that was presumed to be from the UST that had been removed in 1990. The report identified tetrachloroethylene (PCE) in the soil and groundwater that were below the applicable regulatory guidelines at that time.

A Transaction Screen was completed at the property in 2016 that identified potential environmental concerns (PECs). The identified PECs included potential soil and groundwater contamination associated with the former waste oil USTs, significant staining throughout the truck repair shop, and stained soils and a petroleum odor in the vicinity of the diesel fuel dispenser. In addition, a 10,000-gallon diesel fuel UST is located on the property.

A Phase II ESA was completed at the site dated April 20, 2016 which identified the existing diesel fuel UST to be in compliance with the State UST standards. The subsurface investigation consisted of advancing eight soil borings, four of which were completed with temporary groundwater monitoring wells. Soil and groundwater sampling results indicated the presence of metals, VOCs, and SVOCs, in the soil and groundwater. The RCRA metals arsenic, chromium, and lead were found above the VGES. The VOC vinyl chloride was found above the VGES in one of the groundwater samples.



2 Review Potential Sources of Metals

2.1 Current and Past Business Practices at the Site ATC spoke with Mr. Bill Cleary about current and past business practices at the property. The property was developed in 1987 and has been utilized for truck sales and services since that time. The site operations have never reportedly included chrome plating or chrome alloy production. Additional sources of chromium including antifreeze, welding, and limited painting has been conducted at the property; however, the products were never reportedly dumped on the property and are primarily contained within the building. As described below in Section 3, the groundwater results in July 2016 did not indicate the chromium concentrations exceeded the VGES.

Lead and arsenic containing materials are potentially utilized at the site in batteries or other automotive materials. Mr. Cleary knew of no lead or arsenic releases at the property that could have affected the property groundwater. The new and used batteries were stored within the facility on racks in the parts storage area. ATC did not observe evidence of spillage or a release of heavy metals at the property.

2.2 Surrounding Area The property is located in an industrial area with commercial and manufacturing businesses upgradient and cross gradient of the property. The area includes numerous Vermont Hazardous Waste Sites including; Safety Medical Systems parcel (SMS #97-2290), Coca-Cola Facility (SMS #98-2378), Hershberg facility (SMS #90-0621), Champlain Cables facility (SMS#77-0046), and the Department of Defense site Camp Johnson.

The Safety Medical Systems site (SMS #97-2290) is located on a parcel approximately 500 feet to the north of the property. A review of the files available on the Vermont Agency of Natural Resources, Natural Resources Atlas, indicated historical subsurface contamination was investigated primarily between 1997 and 2000. Onsite wastewater was discharged to the environment and included discharges of heavy metals, VOCs, and SVOCs. Additional subsurface investigations at the facility were conducted which sampled the groundwater and soils and indicated concentrations did not pose a significant risk to either human health or the environment. Based on the results of the sampling completed at the site, the VT DEC issued a Site Management Activity Complete (SMAC) in January 2000.

The additional hazardous waste sites indicated various contaminants have been identified in the subsurface in locations upgradient or cross gradient from the property.

The groundwater results for the July 2016 sampling are summarized in Section 3, and indicate the lead and arsenic concentrations are relatively consistent across the property including the upgradient sample from monitoring well MW-10. This indicates the metals concentrations could potentially be migrating from an off-site source.



3 Phase II Investigation Activities

3.1 Property Preparation Prior to the initiation of the investigation activities, ATC prepared a property-specific Health and Safety Plan (HASP) in accordance with the Occupational Safety and Health Administration (OSHA) Standard “Hazardous Waste Operations and Emergency Response” guidelines (29 CFR 1910.120). The HASP was reviewed and signed by ATC personnel and their subcontractors prior to performing work at the property. The HASP detailed the potential exposures and risks associated with each on-property activity and the actions necessary to minimize potential exposure.

3.2 Private Utility Locator On June 21, 2016, ATC utilized a private utility locator, Vermont Underground Locators (VUL), and contacted DigSafe (#2016-2507885) to identify buried utilities that could be impacted by drilling activities on the site. A majority of the buried utilities were identified on the northeastern side of the property. Parking lot light poles were observed throughout the property, and the buried power lines for the light poles were identified and marked.

ATC contacted Colchester Public Works (City) who visited the site and identified the approximate location of an onsite gravity fed sewage line and a forced main that is located on the eastern portion of the property and comes from the sewage pumping station on the south eastern corner of the property. The exact locations of the lines were unknown by the City. With the help of the City, ATC selected boring locations that avoided a corridor where the City believed the buried lines were located.

This investigation cleared proposed drilling locations and did not identify subsurface utilities in the areas designated for drilling activities on the site.

3.3 Drilling Activities On July 14, 2016, ATC conducted boring and groundwater monitoring well installation activities at the site utilizing ENPRO Services, Inc. of Burlington, VT. Utilizing a track mounted drilling rig with direct push rods, borings were advanced in six locations. The six borings were completed as groundwater monitoring wells (MW-10 through MW-15). The borings were advanced utilizing direct push rods and four foot Macro-core® soil samples were collected continuously in the borings. The first five feet of each boring was hand augured in order to reduce the likelihood of damaging buried utility lines. ATC field screened the soils from the borings for the presence of VOCs using a Photoionization Detector (PID) calibrated with isobutylene. Boring locations are presented in Figure 2. Boring logs are included in Appendix A.

Groundwater was encountered in each boring at approximately five to seven feet below ground surface (bgs). The groundwater monitoring wells were constructed of 1-inch inside diameter (ID) Schedule 40, flush threaded polyvinyl chloride (PVC) riser pipe with an end plug. The well screen was 1-inch ID Schedule 40 flush threaded PVC with 0.010-inch slots. The monitoring wells were set to a depth of 12-feet bgs, and flush mounted at the ground surface with a well vault. With the well screen in place, clean filter sand was installed from the bottom of the boring to a minimum of 1 foot above the top of the well screen. A one foot bentonite chip seal was placed above the sand pack.

The monitoring wells were developed through bailing techniques to remove cuttings, clean the well screens, and improve the hydraulic connection between the well screen and formation material.

3.4 Soil Sample Field Screening Results On July 14, 2016 during boring activities, soil samples were screened in the field for volatile organic compounds (VOCs) using a portable photo-ionization device (PID) MiniRAE 2000 Model PGM-7600 calibrated with



Isobutylene. ATC also utilized visual and olfactory evidence for identifying potential petroleum contamination. The soil descriptions and PID results are presented in the boring logs in Appendix A.

A summary of field screening results indicated VOCs were not detected in the six borings.

3.5 Groundwater Sample Results On July 27, 2016, ATC collected groundwater samples from the six monitoring wells installed. The groundwater samples were collected utilizing a disposable bailer, and the water samples were properly preserved in pre-cleaned glassware and kept chilled until analysed. The samples were submitted for laboratory analysis of VOCs via EPA Method 8260, and the metals arsenic, chromium, and lead at Endyne, Inc. of Williston, Vermont. ATC also submitted a field blank and a duplicate sample to be analysed for VOCs for quality assurance/quality control purposes.

The depth to groundwater was measured in each monitoring well on July 27, 2016, using a groundwater interface probe. The measured depth to water ranged from 5.28 to 7.22 feet below ground surface. ATC surveyed the monitoring wells top of casing using a stadia rod and level. The monitoring wells were surveyed for elevation to the nearest hundredth foot (0.10) to establish groundwater flow direction. A benchmark at the fuel dispenser concrete island was utilized to establish relative elevations for the monitoring wells. The depth to groundwater measurements are presented in Table 2, and a groundwater contour map is presented as Figure 3.

The results of the groundwater sampling indicated the detectable presence of VOCs, and/or metals in each of the samples.

The VOC results reported chlorinated compounds in wells MW-11 and MW-13, but none of the results exceeded the Vermont Groundwater Enforcement Standard (VT GWES). Vinyl chloride was reported in the water sample from MW-11 at a concentration of 0.5 µg/L, and MW-13 at a concentration of 1.1 µg/L which is below the VT GWES of 2.0 µg/L. Tetrachloroethene (PCE) was reported in the water sample from MW-11 at a concentration of 0.7 µg/L and in well MW-13 at a concentration of 1.7 µg/L , which is below the VT GWES of 5.0 µg/L.

The metals results indicated arsenic exceeded the VT GWES in four of the six samples. The lead concentrations in groundwater exceeded the VT GWES in three of the six samples. The chromium concentrations in groundwater did not exceed the VT GWES in any of the samples. The maximum arsenic (40 µg/L) and lead (33 µg/L) concentrations were identified in well MW-11 which is located on the central portion of the property near the diesel fuel UST. The sample collected from MW-10, which was upgradient of the property building and proximal to the northern property boundary, exceeded the VT GWES for lead and arsenic.

ATC also submitted a trip blank sample and duplicate sample for quality assurance/quality control purposes. A duplicate sample was collected from monitoring well MW-11, and the relative percent difference (RPD) was calculated for each parameter. The RPD goal of 50% was achieved for each parameter. A field blank sample was collected and analysed for VOCs. The results did not indicate the presence of VOCs. The duplicate and field blank samples do not appear to negatively affect the usability of the data.

A hardcopy of laboratory results are included as Appendix B.



4 Conceptual Site Model

The property is located on the southern end of Hercules Drive and is developed with a two-story building utilized for truck sales and services. The general topography in the area of the site is relatively flat with marsh land on the southern and eastern sides of the property. Groundwater was measured to range from approximately 5 to 7 feet below ground surface on the property, and appears to flow toward the southeast. The site vicinity is primarily industrial and commercial uses, with numerous hazardous waste sites. A majority of the upgradient and cross-gradient sites appear to have received site management activity complete (SMAC) status. The northern adjacent property received a SMAC designation in 2000; however the site historically discharged wastewater to the parcel that included heavy metals, VOCs, and SVOCs. The discharges were discontinued and subsequent investigations indicated any residual contamination did not pose an unacceptable risk to human health or the environment. The previous site investigation completed by ATC dated April 2016, indicated groundwater results exceeded the VT GWES for the metals arsenic, chromium, and lead, and exceeded VT GWES for vinyl chloride in one monitoring well located near the diesel fuel UST. The results of the sampling conducted in July 2016 and summarized in this report indicate lead and arsenic exceed the VT GWES in several samples onsite, but none of the chromium or VOC results exceeded the VT GWES. The identified sensitive receptors in the area of the property include soil, surface water, wetlands, groundwater, nearby drinking water wells, indoor air of the property building, and utility corridors.

• Based on the groundwater sampling, the metals lead and arsenic are primarily located on the central portion of the property. The upgradient well (MW-10) indicated groundwater concentrations exceeded the VT GWES, and three of the five remaining groundwater monitoring well samples exceeded the VT GWES. The highest metals concentrations were located in well MW-11 which is located near the diesel fuel UST on the central portion of the property. The samples MW-13 and MW-15 did not have metals results that exceeded the VT GWES and were located on the southeastern and eastern sides of the sampling area. The property is operated as a truck maintenance garage that utilizes heavy metals; however, the materials are generally stored indoors and no known releases onsite were reported by Mr. Cleary. Due to the results of the upgradient monitoring well MW-10, and the numerous upgradient hazardous waste sites, the possibility that an upgradient off-site parcel contributed to the subsurface contamination at the subject property cannot be ruled out.

• The results of the VOC sampling in groundwater indicated detectable concentrations of vinyl chloride and PCE in wells MW-11 and MW-13 which are located on the central portion of the property near the diesel fuel UST and the southeastern portion of the sampling area. The results indicate the source of the low level VOCs is on the property, but none of the results exceed the VT GWES. The samples collected near the borders of the marsh areas on southern and eastern sides of the property did not have detectable concentrations of VOCs, which indicates the VOCs do not likely impact the surface water near the property.

• Based on the sampling results, low level VOCs are present at the property but do not pose a significant

threat to indoor air. Particularly due to the use of the property building as a vehicle maintenance facility constructed on a concrete slab with no basement. No additional surrounding buildings appear to be at risk of vapor intrusion due to the results of the groundwater sampling, distance from the property, and/or the groundwater flow direction at the site.

• The utility corridors on the property generally extend from the northeastern side of the building toward the northeast on the upgradient side of the property. Several buried sewer corridors are located on the eastern side of the property and extend south to north. The buried utilities do not appear to leave the property on the southern side of the property which likely limits contaminant migration off the property via



the utility corridors. However, the sewer utility corridor is potentially impacted by low level VOCs and metals.

The property and surrounding properties have water and sewer service provided by the City of Colchester. The closest private well is located approximately 1350 feet toward the southwest and cross gradient of the property. The well appears to be 300 feet deep and was completed in 1995, and is not believed to be at potential risk to impact from the property.



5 Conclusions and Recommendations

5.1 Conclusions Based on the results of the activities conducted at the J&B International Trucks facility located at 964 Hercules Drive, in Colchester, Vermont, ATC presents the following conclusions:

• The property has operated as a truck sales and service business since 1987 and utilized materials that include the metals, arsenic, chromium, and lead; however, Mr. Cleary does not know of a release at the property and no visual evidence of a release was identified by ATC.

• The property is located in an industrial area with commercial and manufacturing businesses upgradient and cross gradient of the property. The area includes numerous Vermont Hazardous Waste Sites, including a site that historically discharged heavy metals, VOCs, and SVOCs on a nearby parcel located to the north of the property. The possibility that an upgradient off-site parcel contributed to the subsurface contamination at the subject property cannot be ruled out.

• ATC utilized a private utility locator to identify buried utilities and clear proposed boring locations. A majority of buried utilities are located on the northeastern side of the property. Additionally, sewer utility corridors are located along the eastern side of the property and connect to a pump station located on the southeastern corner of the property.

• Six soil borings were advanced on the property and were completed as groundwater monitoring wells to a depth of 12 feet bgs. Field screening of the soils during the boring advancement did not identify VOC impacted soils.

• Groundwater samples were collected from the six monitoring wells and submitted for laboratory analysis of VOCs, and the metals arsenic, chromium, and lead. The results indicated vinyl chloride and tetrachloroethene were detected in two wells, but the concentrations were below the VT GWES. Sample results also indicated arsenic concentrations exceeded the VT GWES in four of the six groundwater samples and lead concentrations exceeded the VT GWES in three of the six groundwater monitoring wells. The upgradient monitoring well MW-10 indicated concentrations of arsenic and lead that exceeded the VT GWES. Chromium concentrations did not exceed the VT GWES in any of the six samples collected.

• The groundwater sampling results indicate chlorinated VOCs at low concentrations below the VT GWES are located on the central portion of the property and do not appear to extend toward the marsh areas on the southern and eastern sides of the property. The metals arsenic and lead are located on the central portion of the property and in the upgradient monitoring well. The upgradient sample indicates potential for the source to be from an upgradient off-site location.

5.2 Recommendations ATC offers the following recommendations based on the results of the subsurface investigation:

• ATC recommends a confirmatory round of groundwater sampling from the existing monitoring wells in

the spring of 2017.



6 Qualifications

The work performed in conjunction with this assessment, and the data developed, are intended as a description of available information at the dates and locations given. The passage of time may result in a change in the environmental characteristics at this property and surrounding properties. This report does not warrant against future operations or conditions, nor does it warrant operations or conditions present of a type or at a location not investigated. The conclusions drawn from this investigation are considered reliable; however, localized variations in subsurface conditions may exist that have not been completely defined at this time.

Our professional services have been performed, our findings obtained, and our recommendations prepared in accordance with customary principles and practices in the fields of environmental science and engineering. This warranty is in lieu of all other warranties either expressed or implied. ATC is not responsible for the independent conclusions, opinions, or recommendations made by others based on the results and designs presented in this report.

The passage of time may result in a change in the environmental characteristics at this property and surrounding properties. This report does not warrant against future operations or conditions, nor does it warrant operations or conditions present of a type or at a location not investigated.

It must be noted that no investigation can absolutely rule out the existence of any hazardous materials at a given property. This assessment has been based upon prior property history. Existing hazardous materials and contaminants can escape detection using these methods. If a higher level of confidence is required than can be defined by this scope of work, then additional investigation would, of course, be required.

Thank you for considering ATC for your environmental management needs. If you have any questions feel free to contact us at 802 862-1980.

Respectfully Submitted,

ATC Group Services LLC

Adam Forman Robert Montgomery Project Geologist Senior Project Manager for ATC Group Services LLC for ATC Group Services Direct Line +1 802.862.1980 Direct Line +1 802.862.1980 Email: [email protected] Email:[email protected]



FIGURES

171 Commerce Street PO Box 1486

Williston, VT 05495 Phone (802) 862-1980

Fax (802) 862-1405

ATC Project #: 280EM00051 Project Location: J&B International Trucks 964 Hercules Drive Colchester, Vermont

Drawn by: AF Field Work by: AF Checked by: RM Date: September 2016

Figure 1

Site Vicinity Diagram

Property

Property Property

Site DiagramJ&B International Trucks

964 Hercules DriveColchester, Vermont

280EM00051

AF

8/16/16

Figure 2171 Commerce Street, P.O Box 1486

Williston, VT 05495Ph. (802)862-1980

Proj No.

Proj. Mgr.

Date

SB-1/MW-1

SB-3/MW-3

SB-7/MW-7

SB-5/MW-5

SB-2

SB-4

SB-6

SB-8

Legend

Historical Soil Boring Location

Historical Soil Boring/Temporary Monitoring Well Location

Fuel Dispenser Island

Former Waste Oil USTs

Existing Diesel UST

MW-13

MW-15

MW-10

MW-14

MW-12

Sewer Pump Station

MW-11

Soil Boring Location/Monitoring Well Location

S

S

S

0'25'

50' 100'

J&B

Building

Driveway

Driveway

Driveway

Driveway

Driveway

U

t

i

l

i

t

y

C

o

r

r

i

d

o

r

S

S

S

Marsh

U

t

i

l

i

t

y

C

o

r

r

i

d

o

r

Marsh

Approximate Property Boundary

Adjacent Property Mixed Use Building

280EM00051

AF

8/16/16171 Commerce Street, P.O Box 1486Williston, VT 05495Ph. (802)862-1980

Proj No.

Proj. Mgr.

Date

Legend



Existing Diesel UST

MW-13

MW-15

MW-10

MW-14

MW-12

MW-11


0'25'

50' 100'

J&B

Building

Driveway

Driveway

Driveway

Driveway

Driveway

Marsh

Marsh

Groundwater Contour DiagramJ&B International Trucks

964 Hercules DriveColchester, Vermont Figure 3

(89.67)

(89.42)

(88.01)

(88.90)

(87.44)

(87.64)

8

9

.

5

8

9

.

0

8

8

.

5

8

8

.

0

8

7

.

5

Approximate Groundwater Contour Line

Groundwater Elevation(87.44)

280EM00051

AF

8/16/16171 Commerce Street, P.O Box 1486Williston, VT 05495Ph. (802)862-1980

Proj No.

Proj. Mgr.

Date

Legend



Existing Diesel UST

MW-13

MW-15

MW-10

MW-14

MW-12

MW-11


0'25'

50' 100'

J&B

Building

Driveway

Driveway

Driveway

Driveway

Driveway

Marsh

Marsh

VC- 1.1

PCE- 1.7

Arsenic-9

Chrom-22

Lead- 14

Groundwater Concentration DiagramJ&B International Trucks

964 Hercules DriveColchester, Vermont Figure 4

VC- ND

PCE- ND

Arsenic-20

Chrom-19

Lead- 18

VC- ND

PCE- ND

Arsenic-19

Chrom-12

Lead- 4

VC- 0.5

PCE- 0.7

Arsenic-40

Chrom-47

Lead- 33

VC- ND

PCE- ND

Arsenic-38

Chrom-27

Lead- 23

VC- ND

PCE- ND

Arsenic-4

Chrom-13

Lead- 12

VC- Vinyl Chloride (ug/L)

PCE- Tetrachloroethene (ug/L)

Arsenic- (ug/L)

Chrom- Chromium (ug/L)

Lead- (ug/L)

Groundwater Analyte Concentration (bold indicates

exceedance of VT GES)



TABLES

TABLE 1GROUNDWATER ELEVATION DATA

JB International Trucks964 Hercules Drive

Colchester, Vermont VT DEC SMS Site # 90-0634

SAMPLE SAMPLE WELL ELEVATION DEPTH TO GROUNDWATERLOCATION DATE TOC (ft.) GROUNDWATER (ft.) ELEVATION (ft.)

MW-10 7/27/16 94.95 5.28 89.67

MW-11 7/27/16 95.24 5.82 89.42

MW-12 7/27/16 94.86 7.22 87.64

MW-13 7/27/16 94.55 7.11 87.44

MW-14 7/27/16 93.53 5.52 88.01

MW-15 7/27/16 94.54 5.64 88.90

Table 2Groundwater Sample Results

J B International Trucks964 Hercules DriveColchester, Vermont


Sample No. Date Analysis Detected Element Result (ug/L) VT GWES (ug/L)

MW-1 3/30/2016VOCs

Acetone 4.7 J 700Carbon disulfide 0.24 J NA

SVOCsDi-n-butyl phthalate 0.51 J NAPhenol 0.45 J 2,100

MetalsArsenic 280 10Barium 1500 2,000Cadmium 3.3 J 5Chromium 320 100Lead 260 15

J-flagged value is an estimated value between the MDL and PQL. B - flagged compound was found in the blank and sample.NA - Not availableVT GWES - Vermont Groundwater Enforcement StandardShaded Value indicates exceedance of VT GWES


MW-3 3/30/2016VOCs

Acetone 5.8 J 700Carbon disulfide 0.46 J NAcis-1,2-Dichloroethene 1.7 NAVinyl chloride 2.6 2

SVOCsBenzaldehyde 2.8 JB NADiethyl phthalate 1.6 J NA

MetalsArsenic 94 10Barium 590 2,000Cadmium 1.6 J 5Chromium 270 100Lead 210 15Mercury 0.36 2

TPH-DRODRO 460 J NA






MW-5 3/30/2016VOCs

Carbon disulfide 0.43 J NA

SVOCsBenzaldehyde 2.7 JB NA

MetalsArsenic 110 10Barium 670 2,000Cadmium 1.1 J 5Chromium 320 100Lead 190 15

TPH-DRODRO 460 J NA



MW-7 3/30/2016VOCs

Acetone 4.2 J NATrichloroethene 1.1 5

SVOCsBenzaldehyde 2.5 JB NA

MetalsArsenic 85 10Barium 520 2,000Cadmium 0.73 J 5Chromium 280 100Lead 210 15Mercury 0.24 2

TPH-DRODRO 320 J NA






MW-10VOCs

7/27/2016 None NA NA

Metals7/27/2016 Arsenic 20 107/27/2016 Chromium 19 1007/27/2016 Lead 18 15

NA - Not availableVT GWES - Vermont Groundwater Enforcement StandardShaded Value indicates exceedance of VT GWES


MW-11VOCs

7/27/2016 Vinyl Chloride 0.5 27/27/2016 Tetrachloroethene 0.7 5




MW-12VOCs








MW-13VOCs

7/27/2016 Vinyl Chloride 1.1 27/27/2016 Tetrachloroethene 1.7 5




MW-14VOCs





MW-15VOCs






APPENDIX A

SOIL BORINGS

Hand Auger-SAND, medium and coarse, brown, moist, no odor

Bottom of boring

SAND, fine and medium, trace silt, brown, saturated, no odor

SAND, clay and silt, grey, saturated, no odor


Bottom of boring

SAND, medium, trace silt, some organics, brown, saturated, noodor

SAND, fine and medium, grey/brown, saturated, no odor

SAND, medium, trace silt, grey/brown, saturated, no odor


Bottom of boring

SAND, medium, trace silt, some organics, tan, saturated, no odor

SAND, fine and medium, brown, saturated, no odor

SAND, medium, trace silt, grey/brown, saturated, no odor

Hand Auger-CLAY, fine sand, brown, moist, no odor

Hand Auger-SAND, medium, tan, moist, no odor

Bottom of boring

SAND, fine, trace silt, tan, saturated, no odor


SAND, medium, mottled, trace silt, brown, tan, saturated, no odor

Hand Auger-SAND, fine and medium, brown, moist, no odor

CLAY, and fine sand, grey/brown, saturated, no odor

Hand Auger-SAND, and gravel, medium, brown, moist, no odor

Bottom of boring

SAND, medium and coarse, brown, saturated, no odor


SAND, medium and fine, grey/brown, saturated, no odor

Hand Auger-SAND, and gravel, medium, brown, moist, no odor

Bottom of boring

SAND, medium and coarse, brown, saturated, no odor


SAND, medium and coarse, grey/brown, saturated, no odor



APPENDIX B

GROUNDWATER LABORATORY RESULTS

Laboratory Report

J & BPROJECT:

DATE RECEIVED:

WORK ORDER:

DATE REPORTED:

100043ATC Group Services

PO Box 1486

Williston, VT 05495

Atten: Adam Forman SAMPLER:

August 09, 2016

1607-16244

Adam Foreman

July 27, 2016

Page 1 of 10

Reviewed by:

Harry B. Locker, Ph.D.

Laboratory Director

Enclosed please find the results of the analyses performed for the samples referenced on the attached chain of custody. All required method quality control elements including instrument calibration were performed in accordance with method requirements and determined to be acceptable unless otherwise noted.

The column labeled Lab/Tech in the accompanying report denotes the laboratory facility where the testing was performed and the technician who conducted the assay. A "W" designates the Williston, VT lab under NELAC certification ELAP 11263; "R" designates the Lebanon, NH facility under certification NH 2037 and “N” the Plattsburgh, NY lab under certification ELAP 11892. “Sub” indicates the testing was performed by a subcontracted laboratory. The accreditation status of the subcontracted lab is referenced in the corresponding NELAC and Qual fields.

The NELAC column also denotes the accreditation status of each laboratory for each reported parameter. “A” indicates the referenced laboratory is NELAC accredited for the parameter reported. “N” indicates the laboratory is not accredited. “U” indicates that NELAC does not offer accreditation for that parameter in that specific matrix. Test results denoted with an “A” meet all National Environmental Laboratory Accreditation Program requirements except where denoted by pertinent data qualifiers. Test results are representative of the samples as they were received at the laboratory

Endyne, Inc. warrants, to the best of its knowledge and belief, the accuracy of the analytical

test results contained in this report, but makes no other warranty, expressed or implied, especially no warranties of merchantability or fitness for a particular purpose.

NH2037 ELAP11263

160 James Brown Dr., Williston, VT 05495

Ph 802-879-4333 Fax 802-879-7103

www.endynelabs.com

56 Etna Road, Lebanon, NH 03755

Ph 603-678-4891 Fax 603-678-4893

Laboratory Report

ATC Group ServicesCLIENT:PROJECT: J & B

WORK ORDER:DATE RECEIVED:

1607-1624407/27/2016

8/9/2016REPORT DATE:

001 Date Sampled: 7/27/16Site: MW-10 Time: 11:40

Analysis DateParameter Result NELACLab/TechUnits Qual.Method

0.020 mg/L 8/9/16 FAAW ASM 3113B-04Arsenic, Total

0.019 mg/L 8/4/16 DXPW AEPA 6010CChromium, Total

0.018 mg/L 8/8/16 FAAW ASM 3113B-04Lead, Total


























Page 2 of 10

Laboratory Report



1607-1624407/27/2016


TEST METHOD:

001 Sampled: 7/27/16Site: MW-10 8/2/16 SJMWTest Date:11:40Parameter Result

Result

Unit Nelac

Result

Qual Parameter Result

Result

Unit Nelac

Result

Qual

EPA 8260C

< 5.0 Aug/LDichlorodifluoromethane < 3.0 Aug/LChloromethane

< 0.5 Aug/LVinyl chloride < 0.5 Aug/LBromomethane

< 5.0 Aug/LChloroethane < 2.0 Aug/LTrichlorofluoromethane

< 5.0 Nug/LDiethyl ether < 0.7 Aug/L1,1-Dichloroethene

< 10.0 Aug/LAcetone < 5.0 Aug/LCarbon disulfide

< 5.0 Aug/LMethylene chloride < 20.0 Nug/Lt-Butanol

< 2.0 Aug/LMethyl-t-butyl ether (MTBE) < 1.0 Aug/Ltrans-1,2-Dichloroethene

< 2.0 Nug/LDi-isopropyl ether (DIPE) < 1.0 Aug/L1,1-Dichloroethane

< 2.0 Nug/LEthyl-t-butyl ether (ETBE) < 10.0 Aug/L2-Butanone

< 1.0 Nug/L2,2-Dichloropropane < 1.0 Nug/Lcis-1,2-Dichloroethene

< 0.8 Nug/LBromochloromethane < 1.0 Aug/LChloroform

< 10.0 Nug/LTetrahydrofuran < 1.0 Aug/L1,1,1-Trichloroethane

< 0.5 Aug/LCarbon tetrachloride < 1.0 Nug/L1,1-Dichloropropene

< 0.5 Aug/LBenzene < 2.0 Nug/Lt-Amylmethyl ether (TAME)

< 0.5 Aug/L1,2-Dichloroethane < 0.5 Aug/LTrichloroethene

< 0.5 Aug/L1,2-Dichloropropane < 2.0 Nug/LDibromomethane

< 0.5 Aug/LBromodichloromethane < 1.0 Aug/Lcis-1,3-Dichloropropene

< 10.0 Nug/L4-Methyl-2-pentanone (MIBK) < 1.0 Aug/LToluene

< 1.0 Aug/Ltrans-1,3-Dichloropropene < 1.0 Aug/L1,1,2-Trichloroethane

< 0.5 Aug/LTetrachloroethene < 1.0 Nug/L1,3-Dichloropropane

< 10.0 Nug/L2-Hexanone < 1.0 Aug/LDibromochloromethane

< 2.0 Aug/L1,2-Dibromoethane < 1.0 Aug/LChlorobenzene

< 1.0 Aug/LEthylbenzene < 2.0 Aug/L1,1,1,2-Tetrachloroethane

< 2.0 Aug/LXylenes, Total < 1.0 Nug/LStyrene

< 2.0 Aug/LBromoform < 1.0 Aug/LIsopropylbenzene

< 2.0 Aug/L1,1,2,2-Tetrachloroethane < 1.0 Nug/LBromobenzene

< 1.0 Aug/Ln-Propylbenzene < 2.0 Nug/L1,2,3-Trichloropropane

< 1.0 Nug/L2-Chlorotoluene < 1.0 Aug/L1,3,5-Trimethylbenzene

< 1.0 Nug/L4-Chlorotoluene < 1.0 Aug/Lt-Butylbenzene

< 1.0 Aug/L1,2,4-Trimethylbenzene < 1.0 Aug/Ls-Butylbenzene

< 1.0 Aug/L4-Isopropyltoluene < 1.0 Aug/L1,3-Dichlorobenzene

< 1.0 Aug/L1,4-Dichlorobenzene < 1.0 Nug/L1,2,3-Trimethylbenzene

< 1.0 Aug/Ln-Butylbenzene < 1.0 Aug/L1,2-Dichlorobenzene

< 2.0 Aug/L1,2-Dibromo-3-Chloropropane < 2.0 Aug/L1,2,4-Trichlorobenzene

< 2.0 Nug/L1,3,5-Trichlorobenzene < 0.5 Nug/LHexachlorobutadiene

< 2.0 Aug/LNaphthalene < 2.0 Nug/L1,2,3-Trichlorobenzene

99 A%Surr. 1 (Dibromofluoromethane) 100 A%Surr. 2 (Toluene d8)

99 A%Surr. 3 (4-Bromofluorobenzene) 0 UUnidentified Peaks

Page 3 of 10

Laboratory Report



1607-1624407/27/2016


TEST METHOD:


Result

Unit Nelac

Result


Result

Unit Nelac

Result

Qual

EPA 8260C


0.5 Aug/LVinyl chloride < 0.5 Aug/LBromomethane













< 0.5 Aug/L1,2-Dichloroethane 0.9 Aug/LTrichloroethene





0.7 Aug/LTetrachloroethene < 1.0 Nug/L1,3-Dichloropropane

















98 A%Surr. 1 (Dibromofluoromethane) 101 A%Surr. 3 (4-Bromofluorobenzene)

99 A%Surr. 2 (Toluene d8) 0 UUnidentified Peaks

Page 4 of 10

Laboratory Report



1607-1624407/27/2016


TEST METHOD:


Result

Unit Nelac

Result


Result

Unit Nelac

Result

Qual

EPA 8260C







































Page 5 of 10

Laboratory Report



1607-1624407/27/2016


TEST METHOD:


Result

Unit Nelac

Result


Result

Unit Nelac

Result

Qual

EPA 8260C










< 1.0 Nug/L2,2-Dichloropropane 2.3 Nug/Lcis-1,2-Dichloroethene














< 2.0 Aug/LXylenes, Total < 1.0 M-Nug/LStyrene















Page 6 of 10

Laboratory Report



1607-1624407/27/2016


TEST METHOD:


Result

Unit Nelac

Result


Result

Unit Nelac

Result

Qual

EPA 8260C







































Page 7 of 10

Laboratory Report



1607-1624407/27/2016


TEST METHOD:


Result

Unit Nelac

Result


Result

Unit Nelac

Result

Qual

EPA 8260C







































Page 8 of 10

Laboratory Report



1607-1624407/27/2016


TEST METHOD:

007 Sampled: 7/27/16Site: Dup 8/2/16 SJMWTest Date:12:10Parameter Result

Result

Unit Nelac

Result


Result

Unit Nelac

Result

Qual

EPA 8260C







































Page 9 of 10

Laboratory Report



1607-1624407/27/2016


TEST METHOD:

008 Sampled: 7/27/16Site: Trip Blank 8/2/16 SJMWTest Date:12:15Parameter Result

Result

Unit Nelac

Result


Result

Unit Nelac

Result

Qual

EPA 8260C





































98 A%Surr. 1 (Dibromofluoromethane) 99 A%Surr. 2 (Toluene d8)

99 A%Surr. 3 (4-Bromofluorobenzene) 0 UUnidentified Peaks

Report Summary of Qualifiers and Notes

M-: The Laboratory Fortified Matrix (LFM) analysis had a recovery lower than defined acceptance limits. This

indicates a potential negative bias in the reported value or a difficult sample matrix that resulted in poor

reproducibility between sample aliquots selected for analysis.

Page 10 of 10

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