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From: Eric Swiech <eswiech@stone‐env.com>Sent: Monday, October 22, 2012 1:20 PMTo: Moran, Ma Subject: South Village Mobil (SMS #2003‐3096) ‐ Site Progress ReportA achments: S. Village Mobil_Progress Report_102212.pdf Hi Ma , Hope you folks enjoyed the weekend. A ached is a PDF of the Site Progress Report for the above‐referenced site, which covers sampling ac vi es through August 22,2012. The next POET monitoring event will be conducted in November 2012 by VT HydroGeo. Please give me a call if you have any ques ons. Take care,‐Eric Eric J. Swiech, P.G.Senior Hydrogeologist / Director of Consulting ServicesDirect / 802.229.6432EMail / eswiech@stoneenv.comStone Environmental, Inc.535 Stone Cutters Way, Montpelier, Vermont 05602Tel / 802.229.4541 Fax / 802.229.5417Web Site / www.stoneenv.com

This communication, including any attachments, is solely for the confidential use of the person(s) named above. If you have received this communication in error, please notify the senderimmediately and delete/destroy the original. Any reader other than the intended recipient is hereby notified that any review, dissemination, distribution or copying of this message is strictlyprohibited.

October 22, 2012

This progress report summarizes environmental activities performed by Stone Environmental, Inc.

(Stone) at the South Village Mobil facility, located at 974 Vermont Route 12 South, in Northfield,

Vermont (Site) between November 30, 2011 and August 22, 2012. Work was completed in accordance

with the work plan and cost estimate dated May 30, 2011, which was approved by Mr. Matt Moran of

the Vermont Department of Environmental Conservation (VT DEC) on November 10, 2011.

During this reporting period, Stone completed the following:

• abandoned the six-inch recovery well RW-2 and replaced it with a one-inch monitoring well

(MW-10);

• abandoned the damaged up-gradient monitoring well MW-1;

• replaced destroyed groundwater monitoring well MW-6;

• re-surveyed new and repaired groundwater monitoring wells;

• repaired damaged road boxes for groundwater monitoring wells MW-2, MW-3, and MW-4;

• sampled the point-of-entry treatment (POET) system associated with the on-Site bedrock

water supply well on three dates (November 30, 2011, March 28, 2012, and August 22, 2012)

for laboratory analysis of volatile organic compounds (VOCs) by EPA Method 524.2 (plus

oxygenates);

• sampled groundwater monitoring wells for laboratory analysis of VOCs by EPA Method

8021B; and

• prepared this letter report, which details the work performed, provides results and data

interpretation; and provides conclusion and recommendations.

Mr. Thomas Kaminski P.O. Box 93 Waitsfield, Vermont 05673

SEI No. 112484-R RE: Site Progress Report South Village Mobil Northfield, Vermont (SMS #2003-3096) Dear Mr. Kaminski:

S. V

illage Mobil_Progress Report_102212.pdf

. October 22, 2012

1.0 BACKGROUND

1.1 Previous Work

The following reports have previously been prepared for the Site and submitted to the SMS:

• GeoInsight, Inc. Site Investigation Report. 07/28/04.

• Applied GeoSolutions, LLC. Supplemental Site Investigation Report. 07/27/05.

• Applied GeoSolutions, LLC. Site Progress Report. 10/24/05.




1.2 Site Description and Physical Setting

Information in the following section was obtained from the initial Site Investigation (ISI) report

prepared by GeoInsight, dated July 28, 2004.

The Site is located within a topographically narrow valley adjacent to the northeastern base of Shaw

Mountain located along Route 12 in Northfield, Vermont. The property is located on the west side of

Route 12, generally at the convergence of Lover’s Lane, Route 12, and Route 64. A Site Locus is

provided as Figure 1. The Site and associated property is comprised of a single, two-story building used

as a gasoline and diesel service station, convenience store, and eat-in delicatessen.

The property is generally level in the area of the convenience store and parking lot, and appears to have

been filled prior to development based upon the sharp geography of the surrounding area. The easterly

end of the property drops to the west from Route 12. The Site again drops steeply to the west on the

western portion of the property towards Lover’s Lane. Several bedrock outcrops are present on the east

side of Route 12. A drainage swale is located along the eastern portion of the property and runs along

the north side of the Site towards Lover’s Lane, and ultimately discharges to Sunny Brook. Gasoline

and diesel underground storage tanks (USTs) are located northeast of the store as indicated on the Site

Plan (Figure 2). A pump island and canopy are located on the southeast side of the store. The region

east of the store is generally paved, while the northern, western and southern sides of the lot are a mix of

grass and heavy brush.

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. October 22, 2012

Properties in the vicinity of the Site, located along Route 12 and Lover’s Lane are primarily residential.

The closest residential property is located about 500 feet west of the Site. No municipal water or sewer

is available to the Site or surrounding properties.

2.3 Release History

Information in the following sections was obtained from the ISI report prepared by GeoInsight, dated

July 28, 2004.

2.3.1 Diesel Release

On April 5, 2003, approximately 1,456 gallons of diesel fuel was reportedly released to the

surface and subsurface along the northeastern side of the Site due to breakage in the primary

fuel line of a 4,000-gallon diesel UST. Diesel fuel released flowed westerly over the UST pad,

into a grassy area, and into the drainage swale located north and west of the Site. In response,

sorbent booms were placed downstream of the release within the swale, an interceptor trench

was installed to collect light non-aqueous phase liquid (LNAPL), and approximately 541 tons

of impacted soils were excavated, transported, and thermally treated off-Site. Approximately

7,900 gallons of LNAPL and impacted water were pumped from the excavation and interceptor

trench during remedial activities.

Three recovery wells (RW-1, RW-2, and RW-3) were installed in the area of the diesel UST for

a product recovery system installed in May 2003, which operated through August 2003. Pumps

were installed in two of the recovery wells to facilitate removal of product and impacted ground

water from the wells and into an on-Site fractionation tank. Approximately 14,750 gallons of

impacted water was subsequently run through granular activated carbon (GAC) units prior to

discharge to the adjacent stream. Analytical results of samples collected indicated adequate

treatment of water prior to discharge.

2.3.2 Gasoline Release

On July 16, 2003, GeoInsight performed soil screening activities during excavation procedures

associated with Site gasoline piping and dispenser upgrades performed by Ostrout Petroleum.

At the request of Site representatives and Ostrout, soil piles surrounding the dispenser island

and distribution lines were screened using a PID. PID readings of 8 to 69 parts per million

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. October 22, 2012

volume (ppmv) above background were observed from samples collected from the existing soil

piles.

Gasoline lines connected to the western pump were uncovered and removed. Various breaks in

product lines were observed upon inspection in the area of the pump island and dispensers.

The breaks appeared to have occurred in an area where a piece of wood was used as a spacer

between gasoline lines, likely during piping installation activities. The imprint of the wood was

visible in the fractured area. Soil screening in the area of the fractures resulted in PID readings

of 1,675 and 1,766 ppmv above background. The soil removed from the center of the pump

islands was also impacted with gasoline. PID readings collected from samples in the center

ranged from 627 to 1,292 above background. Impacted soils from beneath the pump island and

the new UST line trench were deemed unsuitable for backfill by Ostrout based upon structural

properties of the soil and screening results. According to estimates provided by GeoInsight,

approximately 125 to 150 cubic yards of impact soil was stockpiled on the north side of the store

and covered with plastic sheeting.

2.0 WORK COMPLETED

2.1 Monitoring Well Abandonment and Repair

On November 30, 2011, Stone abandoned recovery well RW-2 and monitoring well MW-1. Stone was

unable to remove the poly-vinyl chloride (PVC) casing at RW-2 using an off-road type jack and chain;

therefore, RW-2 was abandoned by filling the PVC casing to near ground surface with bentonite chips,

then placing native soils to ground surface.

MW-1 was abandoned by removing the PVC casing with an off-road type jack and chain, then filling

the annulus with bentonite chips to near ground surface. Asphalt cold patch was used to fill the annulus

to ground surface.

In addition, the damaged road boxes for monitoring wells MW-2, MW-3, and MW-4 were replaced.

2.2 Groundwater Monitoring Well Installation / Survey

On November 30, 2011 Stone installed two monitoring wells at the Site (MW-6 and MW-10) using a

hand auger. Monitoring well MW-6 was installed to replace the well that was destroyed during

construction activities for the building expansion. Monitoring well MW-10 was installed to replace

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. October 22, 2012

recovery well RW-2. See Figure 2 for monitoring well locations. Soil boring logs and monitoring well

construction details are attached in Appendix A.

Soils from each boring were continuously logged for color, texture, and moisture and were screened for

the possible presence of VOCs using a handheld PID (Ion Science Model 1000+, with a 10.6 eV lamp).

The PID was calibrated using ambient air and 100 ppmv isobutylene. Soil borings were advanced to 6.5

and 6.0 feet below ground surface (bgs) at MW-6 and MW-10, respectively. However, due to sand and

gravel heave, the well for MW-10 was only installed to 5.2 feet bgs. Wells were constructed using one-

inch-diameter schedule 40 PVC with flush-threaded joints.

Monitoring wells consisted of three feet of factory-slotted 0.010” screen; sections of PVC riser were

added to the screened intervals to extend the top of the casings to approximately 0.5 feet bgs. Each

borehole annulus was backfilled with #1 sand pack to above the screened interval, and a bentonite-chip

seal was set within each annulus immediately above the sand pack. Well casings were topped with

expansion caps, and protected at the surface with flush-mounted road boxes.

Immediately following installation, wells were developed to remove fine-grained sediment via a

peristaltic pump.

On December 23, 2011, the top-of-casing elevations of newly installed and repaired monitoring wells

were surveyed relative to the Site benchmark using an automatic level with a vertical accuracy of about

+/- 0.01 feet.

2.3 Liquid Level Measurements

Prior to sampling groundwater monitoring wells on December 2, 2011, Stone gauged liquid levels in all

accessible overburden monitoring wells at the Site using an electronic interface probe. Monitoring well

MW-8 was not gauged; MW-8 was found with a missing roadbox lid and the PVC casing was filled with

sediment. No free-phase petroleum product was observed in any of the monitoring wells.

2.4 Groundwater Sampling and Analysis

2.4.1 Overburden Monitoring Wells

On December 2, 2011, Stone collected groundwater samples from monitoring wells MW-2 through

MW-6, MW-9, and MW-10. Monitoring well MW-8, which is full of sediment, could not be sampled.

Prior to purging, Stone collected a synoptic round of liquid levels in the monitoring wells using an

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. October 22, 2012

electronic interface probe; the probe was properly decontaminated between locations. Monitoring wells

were purged and sampled using a peristaltic pump, with dedicated Teflon-lined polyethylene and

silicone tubing.

Physical/chemical field parameters (pH, Specific Conductance, Dissolved Oxygen, Temperature, and

Oxidation-Reduction Potential) were measured using a YSI multi-parameter meter, standalone Hach

HQ30 dissolved oxygen meter, and flow-through cell system. A LaMotte turbidity meter was used to

measure final turbidity. Wells were purged until the following parameters had stabilized:

• pH, +/- 0.1

• Conductivity +/- 3%

• Redox potential +/- 10 mV

• Dissolved Oxygen +/- 10%

• Temperature +/- 3%

Documented field parameters for each monitoring well are available in Appendix B.

Stone acquired a trip blank and duplicate sample from MW-10 for quality assurance / quality control

(QA/QC) purposes.

Following collection, all samples were preserved with hydrochloric acid and placed in an ice-filled

cooler for transport under a chain-of-custody to Stone’s laboratory in Barre, Vermont. All samples were

analyzed for target petroleum VOCs via EPA Methods 8260B.

2.4.2 On-Site Bedrock Supply Well

Stone collected samples from the POET system associated with the on-Site bedrock water supply well

on three dates during this reporting period: November 30, 2011, March 28, 2012, and August 22, 2012.

Water samples were collected from three locations: upstream of the first granular activated carbon

(GAC) vessel (Total Influent), downstream of the first GAC vessel (C-1 Out), and downstream of the

second GAC vessel (C-2 Out). Samples were collected by placing a clean 40 ml vial pre-preserved with

hydrochloric acid under each of the three sampling ports, opening the valves, and filling two vials per

sample such that there was zero headspace. Samples were packed in coolers on ice and shipped to

Endyne, Inc. in Williston, Vermont for analysis of VOCs by EPA Method 524.2 (plus oxygenates).

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. October 22, 2012

3.0 RESULTS

3.1 Geology/Hydrogeology

Soils encountered at soil borings conducted during Site investigations generally consisted of loose,

brown, fine to coarse sand from ground surface to about three to five feet bgs, overlying grey silt with

interbedded fine sand lenses. Poorly sorted glacial till underlies the silt unit. Bedrock was encountered

at several locations at about 10 to 12 feet bgs; bedrock was encountered near the supply well within a

few inches of ground surface. Bedrock was not encountered near the pump island to a depth of 15 feet

bgs.

Bedrock outcrops are present to the east of the Site, across Route 12, and to the west of the Site, about 20

feet east of monitoring well MW-7. Bedrock is mapped as quartz-sericite slate or phyllite, and visual

observations made by AGS identified steeply dipping (near vertical) foliation planes, generally striking

north-south.

On December 2, 2011, depth-to-water measurements in the flush-mounted-overburden monitoring

wells ranged from 3.42 feet below top-of-casing (BTOC) in monitoring wells MW-2 to 5.35 feet BTOC

in monitoring well MW-4. Calculated relative ground water elevations ranged from 93.33 feet at

monitoring well MW-6 to 96.27 feet at monitoring well MW-10. Table 3-1, below, presents liquid-level

monitoring data from the December 2, 2011 monitoring event.

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. October 22, 2012

Table 3-1 Liquid-Level Monitoring Data: December 2, 2011

Well I.D. Depth-to-Water

(feet BTOC)

Ground Water

Elevation

(feet)

MW-2 3.42 95.31

MW-3 4.40 94.83

MW-4 5.35 93.89

MW-5R 4.32 93.46

MW-6 4.73 93.33

MW-9 5.37 93.94

MW-10 3.56 96.27

On December 2, 2011, the average water-table gradient across the monitoring area was about 0.02

feet/foot (between MW-3 and MW-5R). Assuming groundwater flow is perpendicular to the

equipotential hydraulic-head contours (Figure 3), apparent shallow ground ater flow in the overburden

aquifer was generally to the west-southwest. This flow direction appears to be generally consistent with

that observed during previous monitoring events. The on-Site bedrock supply well appears to be

hydraulically downgradient of the active pump island.

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. October 22, 2012

Vertical groundwater flow components within the overburden aquifer, and the relationship between the

overburden and bedrock aquifers have not been quantified. However, given the relatively shallow depth

to bedrock and the contaminant impact to the bedrock supply well, there is likely a downward flow

component from the overburden aquifer into the bedrock aquifer.

3.2 Groundwater Analytical Results

3.2.1 Overburden Monitoring Wells

3.2.1.1 December 2011 Event

Analytical results for the December 2, 2011 monitoring event are included in Table 3-2, and on the

Dissolved-Phase VOC Distribution Map (Figure 4). Laboratory report forms are included in Appendix

B.

Table 3.2: VOC Groundwater Analytical Results

Sample Location

MTBE Benzene Toluene Ethylbenzene Total

Xylenes Total TMBs

Naphthalene

MW-2 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0


MW-4 3.7 3.6 1.9 39 21 ND<2.0 12

MW-5R ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0


MW-8 Not Sampled (Destroyed)

MW-9 0.74 0.51J 1.2 74 285 163 36

MW-10 ND<2.0 0.36J ND<2.0 3.0 1.5 17.2 3.0

RW-2 Not Sampled (Abandoned)

QA / QC

MW-10 ND<2.0 0.38J ND<2.0 2.8 1.4 16.1 2.9

MW-10-FD ND<2.0 0.36J ND<2.0 3.0 1.5 17.2 3.0

% Difference -- 5.41 -- 6.90 8.22 6.61 3.39

Trip Blank ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0

VGES 40.0 5.0 1,000.0 700.0 10,000.0 350.0 20.0

Notes: All concentrations reported in μg/L. Shaded values exceed the VGES.

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. October 22, 2012

Naphthalene was detected at a concentration of 36 micrograms per Liter (μg/L) in the sample collected

from monitoring well MW-9, which is above the Vermont Groundwater Enforcement Standards

(VGES) of 20.0 μg/L for this compound. Naphthalene was detected in samples collected from

monitoring wells MW-4 (12 μg/L) and MW-10 (3.0 μg/L) and its associated field duplicate (MW-10-

FD, 2.9 μg/L) at concentrations below the VGES. No other target VOCs were detected above respective

VGESs.

Methyl tert-butyl ether (MTBE) was detected in samples collected from wells MW-4 (3.7 μg/L) and

MW-9 (0.74 J μg/L) at concentrations below the VGES of 40.0 μg/L for this compound.

Benzene was detected in samples collected from monitoring wells MW-4 (3.6 μg/L), MW-9 (0.51 J

μg/L), and MW-10 (0.6 J μg/L) and in MW-10 associated duplicate (MW-10-FD, 0.8 J μg/L) at

concentrations below the VGES of 5.0 μg/L for this compound.

3.2.1.2 Quality Assurance / Quality Control

No VOCs were detected in the groundwater trip blank for the December 2, 2011 monitoring event. The

relative percent difference (RPD) values of the blind field duplicate (Dup-1) collected for groundwater

from MW-10 ranged from 0 percent to 8.22 percent; RPDs were within the acceptable limits of <30%

for aqueous samples.

3.2.2 Historic Trends

Since monitoring began in May 2004, petroleum-related VOC concentrations have generally decreased

over each consecutive monitoring event (January 2005, March 2005, August 2005, November 2005,

March 2006, December 2007, and December 2011) at Site monitoring well locations. Historically, no

VOCs had been detected in upgradient monitoring well MW-1 or downgradient monitoring well MW-

8. Time-series graphs for monitoring wells MW-1 through MW-6, MW-8, MW-9, and MW-10 are

provided on Graphs 1 through 9.

At monitoring well MW-2, located about 15 feet downgradient of the existing USTs and the former

diesel fuel release, total benzene, toluene, ethylbenzene, and xylenes (BTEX) concentrations decreased

from 433 μg/L on May 20, 2004 to non-detect over the next four monitoring events. Benzene was

detected at 3.0 μg/L during the March 2006 monitoring event, but was not detected during the last two

monitoring events. MTBE was initially detected at a concentration of 4,340 μg/L, and has been detected

at concentrations of 160 μg/L (August 2005) and 34 μg/L (March 2006) since that time. During four

monitoring events, MTBE was not detected.

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. October 22, 2012

At monitoring well MW-3, located between the existing pump island and the existing USTs, MTBE

concentrations have remained relatively low since monitoring commenced, ranging from non-detect to

36.0 μg/L. Benzene was detected for the first time in this well during December 2007, at a relatively low

concentration of 2.5 μg/L. No other VOCs have been detected in MW-3 to date.

At monitoring well MW-4, located a few feet east-southeast of the active pump island and hydraulically

cross-gradient, total BTEX concentrations were non-detect over each of the first five monitoring events.

However, benzene was detected above the VGES during the December 2007 monitoring event, but the

concentration decreased below the VGES during the most recent monitoring event in November 2011.

MTBE was detected at a concentration of 1.1 μg/L during the first monitoring event, but was not

detected in this well over the next four events. During the December 2007 event, MTBE was detected at

a concentration above the VGES for the first time since monitoring commenced; the concentration

decreased below the VGES during the November 2011 event.

At monitoring well MW-5, located about 70 feet down gradient of the active pump island and about 15

feet cross gradient of the on-Site supply well, no BTEX compounds were detected during the first

monitoring event. Since then, total BTEX concentrations have ranged from 34.9 μg/L (January 2005)

to non-detect (August 2005, March 2006, and December 2011). MTBE was detected at 1,020 μg/L

during the first monitoring event, and has decreased to non-detect during the most recent monitoring

event.

At monitoring well MW-6, located hydraulically down gradient of the former diesel fuel release and the

former gasoline-impacted soil stockpile, total BTEX concentrations decreased from 2,473 μg/L on May

20, 2004 to 36.3 μg/L during the March 2006 monitoring event. MTBE decreased from an initial

concentration of 2,980 μg/L to 12.1 μg/L during the August 2005 monitoring event, but increased to 16.5

μg/L and 27 μg/L during the November 2005 and March 2006 monitoring events, respectively. This

well was damaged and subsequently replaced with monitoring well MW-6R in November 2011; no

VOCs were detected in the sample collected from this well.

Monitoring well MW-9, located immediately downgradient of the pump island, was installed in

December 2007 and has been monitored twice to date. During the December 2007 event, total BTEX

was detected at 18.9 μg/L, and no VOCs were detected above the respective VGESs. During the most

recent event, total BTEX increased to 360.7 μg/L, and naphthalene was detected at a concentration

above the VGES for this compound.

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. October 22, 2012

3.3 POET Analytical Results

MTBE was initially detected at a concentration of 226 μg/L in a sample collected from the on-Site

bedrock supply well on May 20, 2004. A confirmation sample collected on June 10, 2004 yielded

MTBE at a concentration of 220 μg/L, which is above the VGES of 40.0 μg/L, and benzene at a

concentration of 0.7 μg/L, which is above the Preventive Action Level (PAL) of 0.5 μg/L. As a result,

the VT DEC contracted the installation of a POET system, comprised of two granular activated carbon

(GAC) vessels, in July 2004. Since then, the POET system has been monitored for VOCs on a periodic

basis.

Untreated samples collected from the on-Site bedrock supply well have been impacted with petroleum-

related VOCs since monitoring began in May 2004 (Table 1, Appendix C). During this reporting

period, MTBE was detected in untreated samples collected from the on-Site supply well (C-1 Influent)

at concentrations of 5.1 μg/L (November 2011), 5.2 μg/L (March 2012), and 3.8 μg/L (August 2012).

MTBE concentrations have exhibited an overall decreasing trend since monitoring commenced (Graph

10). Of note, MTBE has not been detected above the VGES of 40 μg/L since December 2006.

Benzene concentrations in samples collected at the C-1 Influent have ranged from non-detect during

several monitoring events to 5.0 μg/L on July 26, 2004, which is equal to the VGES for this compound.

Benzene has been detected above the PAL of 0.5 μg/L, but below the VGES of 5.0 μg/L, during four

monitoring events. Benzene has not been detected at this location since June 2005.

Since the POET system was installed in July 2004, benzene and MTBE have not been detected above

respective VGESs in samples collected after treatment through the second carbon vessel (C-2),

indicating the POET system is effective at treating these compounds. The oxygenate tert-butyl alcohol

(TBA), which is highly soluble and not readily sorbed by GAC, was routinely detected in post-treatment

samples during the early stages of monitoring; however; these oxygenates have not been detected in the

C-2 effluent since October 2007.

4.0 CONCLUSIONS

Based on all the Site data obtained to date, Stone draws the following conclusions:

The on-Site bedrock supply well continues to be impacted by MTBE; however, MTBE has not been detected above the VGES of 40 μg/L since December 2006. Overall, MTBE concentrations in untreated samples collected from the on-Site supply well show a decreasing

S. V


. October 22, 2012

trend. The POET system is effectively removing MTBE and other petroleum-related VOCs from the water prior to use at the facility.

During the December 2011 monitoring event, naphthalene was detected in the sample collected from monitoring well MW-9 at a concentration above its respective VGES. No other target VOCs were detected above the respective VGES in samples collected from the overburden monitoring well network.

Elevated PID readings (e.g. up to 680 ppmv) obtained during the installation of monitoring well MW-9 suggest there is a residual source of petroleum hydrocarbons within soils in the vicinity of the pump island, between about 4 to 5 feet bgs. During the only two monitoring rounds conducted at MW-9 to date, the water table elevation has been below the zone of relatively high soil contamination. Under high water table conditions, contaminant concentrations in groundwater may increase compared to those observed previously.

At the hand-augered soil boring for newly installed monitoring well MW-10, located near the former diesel fuel release, a peak PID reading of 154 ppmv was observed on soils at six feet bgs. However, due to sand and gravel heave, the bottom of the monitoring well was set at 5.2 feet bgs. As such, the well is not screened appropriately to intercept the zone of potential “worst case” groundwater contamination.

Aside from monitoring wells MW-9 and MW-10, which have insufficient data for trend analysis, petroleum-related VOC concentrations have generally decreased over each consecutive monitoring event (January 2005, March 2005, August 2005, November 2005, March 2006, December 2007, and December 2011) in overburden monitoring wells at the Site since monitoring began in May 2004.

5.0 RECOMMENDATIONS

Given the above conclusions, Stone recommends the following:

Samples should continue to be collected on a quarterly basis from the on-Site supply well POET system for laboratory analysis of VOCs by EPA Method 524.2. The next event is scheduled for November 2012.

Monitoring well MW-10 should be installed deeper to intercept the zone where the highest PID reading was observed.

Monitoring of overburden wells MW-2, MW-3, MW-4, MW-5R, MW-6, MW-9, and MW-10 should be completed on an annual basis, with the next event occurring in spring 2012 (when the water table is expected to be at a seasonal high). Samples should be analyzed for the target list of petroleum-related compounds by EPA Method 8021B.

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. October 22, 2012

Downgradient monitoring well MW-8, which is currently filled with sediment and missing a protective road box, should be properly abandoned in accordance with the Vermont Water Supply Rules.

A work plan and cost estimate to complete the above recommendations should be prepared for approval by VT DEC prior to implementation.

I appreciate the opportunity to assist you on the project. Please contact me if you have any questions. Sincerely yours, Eric J. Swiech, PG

Senior Hydrogeologist / Director of Consulting Services Direct Phone / 802.229.6432 Direct E-Mail / [email protected] cc: Mr. Matt Moran, VT DEC

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FIGURES

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Copyright (C) 2002, Maptech, Inc.

Name: ROXBURYDate: 7/28/2005Scale: 1 inch equals 1000 feet

Location: 044° 06' 41.66" N 072° 39' 17.59" WCaption: Figure 1. Site Locus

South Village Mobil Northfield, VT

072° 40' 0.00" W

072° 40' 0.00" W

072° 39' 30.00" W

072° 39' 30.00" W

072° 39' 0.00" W

072° 39' 0.00" W

072° 38' 30.00" W

072° 38' 30.00" W

044°

07'

0.0

0" N

044°

07'

0.0

0" N

044°

06'

30.

00" N

044°

06'

30.

00" N

044°

06'

0.0

0" N

044°

06'

0.0

0" N

Site

16° W

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S. Village Mobil_Progress Report_102212.pdf

GRAPHS

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GRAPH 1. MW-1VOC Concentrations in Ground Water

South Village MobilNorthfield, VT

Date Total BTEX TBA MTBE Benzene Toluene Ethyl

benzene Xylenes Total TMBs

Naph-thalene

Ground-Water

Elevation 05/20/04 ND NA ND<2.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 98.1601/01/05 ND NA ND<2.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 98.2508/01/05 ND ND<10.0 ND<2.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 98.1911/01/05 ND ND<10.0 ND<2.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 98.32

VGES --- -- 40 5 1,000 700 10,000 350 20 ----

Notes: Results reported in micrograms per liter (µg/L)ND- None detected at indicated detection limit.TBQ - Trace below quantitation limit indicated.

95.00

96.00

97.00

98.00

99.00

100.00

1 05/20/04 09/18/04 01/18/05 05/20/05 09/18/05 01/18/06

Gro

un

d W

ater

Ele

vati

on

(fe

et)

Co

nce

ntr

atio

n (

µg

/L)

Date

Benzene Total BTEX MTBE Ground-Water Elevation

VGES - Vermont Groundwater Enforcement StandardsMTBE - Methyl tert-butyl etherTBA - Tert-butyl alcohol

Stone Environmental, Inc.

S. V






Naph-thalene DO

Ground-Water

Elevation 05/20/04 433 NA 4,340 ND<25.0 113 65 255 ND ND<25.0 NA 95.4401/01/05 ND NA ND<2.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 NA 96.6608/01/05 ND 131 160 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 7.6 95.0511/01/05 ND ND<10.0 ND<2.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 6.6 97.0703/24/06 3.0 NA 34 3.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 0.5 94.9912/07/07 1.0 NA ND<2.0 ND<1.0 ND<1.0 1.0 ND<2.0 ND ND<2.0 NA 95.0512/02/11 ND NA ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 8.6 95.31

VGES --- -- 40 5 1,000 700 10,000 350 20 -- ----Notes: Results reported in micrograms per liter (µg/L), except dissolved oxygen (DO), which is reported in milligrams per Liter (mg/L)

92.00

93.00

94.00

95.00

96.00

97.00

98.00

1

10

100

1,000

10,000

05/20/04 03/16/05 01/10/06 11/06/06 09/02/07 06/28/08 04/24/09 02/18/10 12/15/10 10/11/11 08/06/12

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ND- None detected at indicated detection limit.NA - Not AvailableTBQ - Trace below quantitation limit indicated.VGES - Vermont Groundwater Enforcement StandardsTBA - Tert-butyl alcoholShaded areas denote VGES or PAL exceedance.


S. V






Naph-thalene DO

Ground-Water

Elevation 05/20/04 ND NA 16.8 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 NA 94.9701/01/05 ND NA 36.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 NA 95.2708/01/05 ND ND<10.0 11.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 3.5 94.7511/01/05 ND ND<10.0 2.7 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 5.1 96.5703/24/06 ND NA 6.8 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 3.2 94.6412/07/07 2.5 NA 2.5 2.5 ND<1.0 ND<1.0 ND<1.0 ND ND<2.0 NA 94.2712/02/11 ND NA ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 0.4 94.83


ND- None detected at indicated detection limit.

89.00

90.00

91.00

92.00

93.00

94.00

95.00

96.00

97.00

1

10

100

05/20/04 03/16/05 01/10/06 11/06/06 09/02/07 06/28/08 04/24/09 02/18/10 12/15/10 10/11/11 08/06/12

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µg

/L)

Date


NA - Not AvailableTBQ - Trace below quantitation limit indicated.VGES - Vermont Groundwater Enforcement StandardsTBA - Tert-butyl alcoholShaded areas denote VGES exceedance.


S. V






Naph-thalene DO

Ground-Water

Elevation 05/20/04 ND NA 1.1 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 NA 94.4601/01/05 ND NA ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 NA 94.5708/01/05 ND ND<10.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 2.6 94.2711/01/05 ND ND<10.0 ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 5.2 94.8203/24/06 ND NA ND<1.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 4.5 94.1212/07/07 6.1 NA 64.3 6.1 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 NA 93.7612/02/11 65.5 NA 3.7 3.6 1.9 39 21 ND<2.0 12 NA 93.89

VGES --- -- 40 5 1,000 700 10,000 350 20 -- ----

90.00

91.00

92.00

93.00

94.00

95.00

1

10

100

05/20/04 03/16/05 01/10/06 11/06/06 09/02/07 06/28/08 04/24/09 02/18/10 12/15/10 10/11/11 08/06/12

Gro

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µg

/L)

Date


Notes: Results reported in micrograms per liter (µg/L), except dissolved oxygen (DO), which is reported in milligrams per Liter (mg/L)ND- None detected at indicated detection limit.NA - Not AvailableTBQ - Trace below quantitation limit indicated.MTBE - Methyl tert-butyl etherTBA - Tert-butyl alcoholShaded areas denote VGES exceedance.


S. V






Naph-thalene DO

Ground-Water

Elevation 05/20/04 ND NA 1,020 ND<10.0 ND<10.0 ND<10.0 ND<10.0 ND ND<10.0 NA 92.0901/01/05 34.9 NA 55.8 33.1 ND<1.0 ND<1.0 1.8 ND 9.2 NA 92.4708/01/05 ND ND<10.0 6.1 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 1.2 92.3711/02/05 3.8 14.3 25.7 3.8 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 0.7 92.7703/24/06 ND NA 22 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 0.5 92.3412/07/07 3.5 NA 2.4 1.4 2.1 ND<1.0 ND<2.0 ND ND<2.0 NA 92.2112/02/11 ND NA ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 0.3 93.46


89.00

90.00

91.00

92.00

93.00

94.00

1

10

100

1,000

10,000

05/20/04 03/16/05 01/10/06 11/06/06 09/02/07 06/28/08 04/24/09 02/18/10 12/15/10 10/11/11 08/06/12

Gro

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µg

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Date


ND- None detected at indicated detection limit.NA - Not AvailableTBQ - Trace below quantitation limit indicated.VGES - Vermont Groundwater Enforcement StandardsTBA - Tert-butyl alcoholShaded areas denote VGES exceedance.


S. V






Naph-thalene DO

Ground-Water

Elevation 05/20/04 2,473 NA 2,980 561 1,460 53.7 398 31.5 ND<10.0 NA 93.4301/01/05 1,123 NA 66.7 88.1 20.4 247 767 505 71.9 NA 93.6808/01/05 40.0 ND<10.0 12.1 2.3 27.7 4.8 5.2 3.6 3.8 2.4 93.1611/02/05 73.5 ND<10.0 16.5 6.4 1.5 33.3 32.3 29.6 17.6 0.7 93.8003/24/06 36.3 NA 27 2.4 3.9 19 11 11.0 1.9 0.5 93.4112/02/11 ND NA ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 ND<2.0 0.3 93.33


ND- None detected at indicated detection limit.

89.00

90.00

91.00

92.00

93.00

94.00

1

10

100

1,000

10,000

05/20/04 03/16/05 01/10/06 11/06/06 09/02/07 06/28/08 04/24/09 02/18/10 12/15/10 10/11/11 08/06/12

Gro

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µg

/L)

Date


NA - Not AvailableTBQ - Trace below quantitation limit indicated.VGES - Vermont Groundwater Enforcement StandardsTBA - Tert-butyl alcoholShaded areas denote VGES exceedance.


S. V






Naph-thalene DO

Ground-Water

Elevation 03/08/05 ND NA ND<2.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 NA 70.4608/01/05 ND ND<10.0 ND<2.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 1.7 67.9403/24/06 ND ND<10.0 ND<2.0 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND ND<2.0 6.2 70.42

VGES --- -- 40 5 1,000 700 10,000 350 20 ----

Notes: Results reported in micrograms per liter (µg/L), except dissolved oxygen (DO), which is reported in milligrams per Liter (mg/L)ND- None detected at indicated detection limit.TBQ - Trace below quantitation limit indicated.VGES - Vermont Groundwater Enforcement Standards

62.00

63.00

64.00

65.00

66.00

67.00

68.00

69.00

70.00

71.00

72.00

1

10

05/20/04 09/18/04 01/18/05 05/20/05 09/18/05 01/18/06 05/20/06

Gro

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Date


MTBE - Methyl tert-butyl etherTBA - Tert-butyl alcohol


S. V






Naph-thalene DO

Ground-Water

Elevation 12/07/07 18.9 NA 24.9 3.0 1.1 8.3 6.5 4.6 2.0 NA 93.5312/02/11 360.7 NA 0.74 0.5 1.2 74 285 163 36.0 0.3 93.94

VGES --- -- 40 5 1,000 700 10,000 350 20 -- ----

Notes: Results reported in micrograms per liter (µg/L), except dissolved oxygen (DO), which is reported in milligrams per Liter (mg/L)ND- None detected at indicated detection limit.NA - Not AvailableTBQ - Trace below quantitation limit indicated.VGES - Vermont Groundwater Enforcement Standards

89.00

90.00

91.00

92.00

93.00

94.00

0

1

10

100

1,000

10,000

05/20/04 03/16/05 01/10/06 11/06/06 09/02/07 06/28/08 04/24/09 02/18/10 12/15/10 10/11/11 08/06/12

Gro

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µg

/L)

Date


MTBE - Methyl tert-butyl etherTBA - Tert-butyl alcoholShaded areas denote VGES exceedance.


S. V






Naph-thalene DO

Ground-Water

Elevation 12/02/11 4.9 NA ND<2.0 0.4 ND<2.0 3.0 1.5 17.2 3.0 0.3 96.27

VGES --- -- 40 5 1,000 700 10,000 350 20 -- ----

Notes: Results reported in micrograms per liter (µg/L), except dissolved oxygen (DO), which is reported in milligrams per Liter (mg/L)ND- None detected at indicated detection limit.NA - Not AvailableTBQ - Trace below quantitation limit indicated.VGES - Vermont Groundwater Enforcement StandardsMTBE - Methyl tert-butyl ether

89.00

90.00

91.00

92.00

93.00

94.00

95.00

96.00

97.00

1

10

100

1,000

10,000

05/20/04 03/16/05 01/10/06 11/06/06 09/02/07 06/28/08 04/24/09 02/18/10 12/15/10 10/11/11 08/06/12

Gro

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µg

/L)

Date


TBA - Tert-butyl alcoholShaded areas denote VGES exceedance.


S. V


0

50

100

150

200

250

300

09/01/02 01/14/04 05/28/05 10/10/06 02/22/08 07/06/09 11/18/10 04/01/12 08/14/13

MTB

E C

once

ntra

tion

(Mic

rogr

ams/

Lite

r)

Date

GRAPH 10. MTBE Concentrations Over Time (C-1 Influent)

VGES = 40.0

PAL = 20.0

S. V


APPENDIX A

S. V


Site Name: South Village Mobil Client: VT DEC Permit No.: NA

Location: 974 Vermont Route 12 South Northfield, VT Drilling Dates: 11/30/2011

Project: Field Log By: Lee Rosberg

Driller: Lee Rosberg Company: SEI Drilling Method: Hand Auger

Latitude: 44° 11' 98.35" Longitude: -72° 65' 71.83" Borehole Diam. (in.): 3.25"

State Plane Coordinate Feet (North): Outer Casing: NA

State Plane Coordinate Feet (East): Well Diameter (inches) 1"

Outer Casing (OC) Elevation (feet): NA Casing Length (feet): 3'

Inner Casing (IC) Elevation (feet): NA Screen Length (feet): 3'

Ground Elevation (feet): NA Screen Slot Size: 10

Datum: MSL Sand Pack: #1

Notes: Flush-mounted roadbox

Depth (feet) PID Response (ppm) Recovery Sample IDs0-6.5'

0 - 2.8' Dark brown, poorly sorted fine sand w/some silt and gravel, moist 0.0

2.8 - 3.2' 0.0

3.2 - 4.8' Dark brown fine sands and silt, moist, becoming wet at 4.8' 0.0

4.8 - 5.6' Dark brown sand and gravel, wet 0.0

5.6 - 6.5' Same as above, but with angular rock fragments 0.0

Drilling Log

MW-6

Description

Well was developed after installation

Refual @ 6.5'. Set well @ 6.2' bgs, w/ 3' of 10-slot screen. 6.2-2.5' = natural sand pack and #1 sand. Bentonite chips to 1' bgs. #1 sand to ground surface. Finished with flushmount road box.PID readings obtained w/ Ion Science Model 1000+ (10.6 eV lamp)

Light grey silt w/some fine sand, moist

SV Mobil_Boring Logs.xlsx - MW-6

S. V


Site Name: South Village Mobil Client: VT DEC Permit No.: NA

Location: 974 Vermont Route 12 South Northfield, VT Drilling Dates: 11/30/2011

Project: Field Log By: Lee Rosberg

Driller: Lee Rosberg Company: SEI Drilling Method: Hand Auger

Latitude: 44° 11' 98.35" Longitude: -72° 65' 71.83" Borehole Diam. (in.): 3.25"

State Plane Coordinate Feet (North): Outer Casing: NA

State Plane Coordinate Feet (East): Well Diameter (inches) 1"

Outer Casing (OC) Elevation (feet): NA Casing Length (feet): 5

Inner Casing (IC) Elevation (feet): NA Screen Length (feet): 3'

Ground Elevation (feet): NA Screen Slot Size: 10

Datum: MSL Sand Pack: #1

Notes: Flush-mounted roadbox

Depth (feet) PID Response (ppm) Recovery0-6.0'

0.0 - 3.5' Brown, well sorted medium sand, dry 0.0

3.5 - 4.0' 0.2

4.0 - 6.0' Brown sand becoming grey, medium sand, wet 22 @ 4.0'62.9 @ 5.0'

6.0' Grey, well sorted coarse gravel, saturated 154

Refual @ 6.0' due to heaving gravel. Set well @ 5.2' bgs, w/ 3' of 10-slot screen. 5.2-1.5' = natural sand pack and #1 sand. Bentonite chips to 0.5' bgs. #1 sand to ground surface. Finished with flushmount road PID readings obtained w/ Ion Science Model 1000+ (10.6 eV lamp)

Well was developed after installation

Drilling Log

MW-10

Description

Same as above, becoming moist

SV Mobil_Boring Logs.xlsx - MW-10

S. V


APPENDIX B

S. V


December 30, 2011

This data package presents the analytical results for the analyses performed by Stone Environmental,

Inc. Laboratory (Stone Laboratory) on December 7 and December 9, 2011. Eight groundwater samples

and one trip blank were collected by Stone Environmental Inc. on December 2, 2011 and were received

by Stone Laboratory on December 2, 2011.

The samples were analyzed by EPA SW846 Method 8260 (gas chromatography/mass spectrometry

(GC/MS)) with solid phase microextration technique for volatile organic compounds (VOCs). The

analytical results associated with the samples presented in this test report were generated under a quality

system that adheres to requirements specified in the National Environmental Laboratory Accreditation

Conference (NELAC) standards. All QA/QC results associated with these data were found to be within

the tolerances set forth in the associated laboratory Standard Operating Procedures (SOPS) and the

NELAC standards.

When applicable, the final results were annotated with the following codes:

U - The analyte was analyzed for, but was not detected above the reported quantitation

limit.

J - The analyte was positively identified; the associated numerical value is the approximate

concentration of the analyte in the sample.

UJ - The analyte was not detected above the reported sample quantitation limit. However,

the reported quantitation limit is approximate and may or may not represent the actual

limit of quantitation necessary to accurately and precisely measure the analyte in the

sample.

Eric Sweich Stone Environmental 535 Stone Cutters Way Montpelier, VT 05602

SEI No. 11-2484-R RE: South Village Mobil, Groundwater Sample Analysis

Dear Mr. Sweich:

1

S. V


December 30, 2011

B - Indicates the analyte was found in the associated laboratory blank as well as the sample.

I certify that the data package is in compliance with the terms and conditions of the contract, both

technically and for completeness, for other than the conditions detailed above. Release of the data

contained in this hard copy data package has been authorized by the laboratory manager or his designee,

as verified by the following signature.

Signature: ___________________________________________

Sincerely yours, Michael Rossi Laboratory Director Direct Phone / 802.229.2194 E-Mail / [email protected]

2

S. V


December 30, 2011

SAMPLE LOGIN SUMMARY

3

S. V


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illage Mobil_P

rogress Report_102212.pdf

December 30, 2011

LABORATORY ANALYTICAL RESULTS

5

S. V


Onsite Laboratory Results Mobile Laboratory 2

Client: Stone Environmental Report Date:

Location: Northfield, VT Date(s) Sampled: 12/02/2011 - 12/02/2011

Project ID: South Village Mobil Date(s) Analyzed: 12/09/2011 - 12/09/2011

SEI Project No.: 112484 Test Method: SW8260B,SW8260B

Matrix: GW Results Given as:Location ID: 12/2/2011

Sample Name CAS # TB-01 MW-2 MW-3 MW-4 MW-5 MW-6 MW-9 MW-10-FDAnalysis Date 12/07/11 11:56 TB 12/09/11 20:42 N 12/09/11 20:57 N 12/09/11 21:13 N 12/09/11 21:29 N 12/09/11 21:44 N 12/09/11 22:00 N 12/09/11 22:32 FD

t-Butyl-methyl ether 1634-04-4 2.0 U 2.0 U 2.0 U 3.7 2.0 U 2.0 U 0.74 J 2.0 UBenzene 71-43-2 2.0 U 2.0 U 2.0 U 3.6 2.0 U 2.0 U 0.51 J 0.38 JToluene 108-88-3 2.0 U 2.0 U 2.0 U 1.9 J 2.0 U 2.0 U 1.2 J 2.0 UEthylbenzene 100-41-4 2.0 U 2.0 U 2.0 U 39 2.0 U 2.0 U 74 2.8m,p-Xylenes 136777612 2.0 U 2.0 U 2.0 U 2.0 U 2.0 U 2.0 U 200 1.0 Jo-Xylene 95-47-6 2.0 U 2.0 U 2.0 U 21 2.0 U 2.0 U 85 0.40 J1,2,4-Trimethylbenzene 95-63-6 2.0 U 2.0 U 2.0 U 2.0 U 2.0 U 2.0 U 130 151,3,5-Trimethylbenzene 108-67-8 2.0 U 2.0 U 2.0 U 2.0 U 2.0 U 2.0 U 33 1.1 JNaphthalene 91-20-3 2.0 U 2.0 U 2.0 U 12 2.0 U 2.0 U 36 2.9Bromofluorobenzene (SS) 460-00-4 96 % 100 % 98 % 100 % 96 % 97 % 97 % 101 %

Sample Name CAS # MW-10Analysis Date 12/09/11 22:16 N

t-Butyl-methyl ether 1634-04-4 2.0 UBenzene 71-43-2 0.36 JToluene 108-88-3 2.0 UEthylbenzene 100-41-4 3.0m,p-Xylenes 136777612 1.1 Jo-Xylene 95-47-6 0.42 J1,2,4-Trimethylbenzene 95-63-6 161,3,5-Trimethylbenzene 108-67-8 1.2 JNaphthalene 91-20-3 3.0Bromofluorobenzene (SS) 460-00-4 95 %

12/30/2011

All of the tests results were performed in accordance with the NELAC standards and meet all NELAC requirements for parameters for which accreditation is required or available. The reports were completed according to contract specific reporting requirements. Any exceptions to the NELAC standard requirements are noted and the data has been qualified accordingly.

ug/L

U = Not detected above the specified reporting limit.J = Estimated value.E = Estimated value, marginally above the calibration levels.D = Sample analyzed at a dilution.N = Normal sample.EB = Equipment BlankB = Indicates blank contamination.

6


Laboratory Report

SV MobilPROJECT:

DATE RECEIVED:WORK ORDER:

DATE REPORTED:

070233Stone Environmental, Inc.535 Stone Cutters WayMontpelier, VT 05602

Atten: Mr. Chris Stone SAMPLER:December 13, 2011

1111-17664

Eric

November 30, 2011

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.

160 James Brown Dr., Williston, VT 05495Ph 802-879-4333 Fax 802-879-7103

ELAP 11263

www.endynelabs.com

NH203756 Etna Road, Lebanon, NH 03766 Ph 603-678-4891 Fax 603-678-4893

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CLIENT:PROJECT: SV Mobil

WORK ORDER:DATE RECEIVED:

1111-1766411/30/2011

12/13/2011REPORT DATE:

001 Date Sampled: 11/30/11Site: C2-Out 12/2/11 RBFWAnalysis Date:11:38QualNelacUnitResultParameterQualNelacUnitResultParameter

TEST METHOD: EPA 524.2

< 0.5 ADichlorodifluoromethane ug/L < 0.5 AChloromethane ug/L< 0.5 AVinyl chloride ug/L < 0.5 ABromomethane ug/L< 0.5 AChloroethane ug/L < 0.5 ATrichlorofluoromethane ug/L< 0.5 A1,1-Dichloroethene ug/L < 5.0 Nt-Butanol ug/L< 1.0 AMethylene chloride ug/L < 0.5 AMethyl-t-butyl ether (MTBE) ug/L< 0.5 Atrans-1,2-Dichloroethene ug/L < 0.5 ADi-isopropyl ether (DIPE) ug/L< 0.5 AEthyl-t-butyl ether (ETBE) ug/L < 0.5 A1,1-Dichloroethane ug/L< 0.5 A2,2-Dichloropropane ug/L < 0.5 Acis-1,2-Dichloroethene ug/L< 0.5 ABromochloromethane ug/L < 0.5 AChloroform ug/L< 0.5 A1,1,1-Trichloroethane ug/L < 0.5 ACarbon tetrachloride ug/L< 0.5 A1,1-Dichloropropene ug/L < 0.5 ABenzene ug/L< 0.5 At-Amylmethyl ether (TAME) ug/L < 0.5 A1,2-Dichloroethane ug/L< 0.5 ATrichloroethene ug/L < 0.5 A1,2-Dichloropropane ug/L< 0.5 ADibromomethane ug/L < 0.5 ABromodichloromethane ug/L< 0.5 Acis-1,3-Dichloropropene ug/L < 0.5 AToluene ug/L< 0.5 Atrans-1,3-Dichloropropene ug/L < 0.5 A1,1,2-Trichloroethane ug/L< 0.5 ATetrachloroethene ug/L < 0.5 A1,3-Dichloropropane ug/L< 0.5 ADibromochloromethane ug/L < 0.5 AChlorobenzene ug/L< 0.5 AEthylbenzene ug/L < 0.5 A1,1,1,2-Tetrachloroethane ug/L< 1.0 AXylenes, Total ug/L < 0.5 AStyrene ug/L< 0.5 ABromoform ug/L < 0.5 AIsopropylbenzene ug/L< 0.5 A1,1,2,2-Tetrachloroethane ug/L < 0.5 ABromobenzene ug/L< 0.5 An-Propylbenzene ug/L < 0.5 A1,2,3-Trichloropropane ug/L< 0.5 A2-Chlorotoluene ug/L < 0.5 A1,3,5-Trimethylbenzene ug/L< 0.5 A4-Chlorotoluene ug/L < 0.5 At-Butylbenzene ug/L< 0.5 A1,2,4-Trimethylbenzene ug/L < 0.5 As-Butylbenzene ug/L< 0.5 A4-Isopropyltoluene ug/L < 0.5 A1,3-Dichlorobenzene ug/L< 0.5 A1,4-Dichlorobenzene ug/L < 0.5 An-Butylbenzene ug/L< 0.5 A1,2-Dichlorobenzene ug/L < 0.5 A1,2,4-Trichlorobenzene ug/L< 0.5 AHexachlorobutadiene ug/L < 0.5 ANaphthalene ug/L< 0.5 U1,3,5-Trichlorobenzene ug/L < 0.5 A1,2,3-Trichlorobenzene ug/L< 2.0 ATotal Trihalomethanes ug/L 94 ASurr. 1 (4-Bromofluorobenzene) %

90 ASurr. 2 (1,2-Dichlorobenzene d4) % 2 UUnidentified Peaks

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1111-1766411/30/2011


002 Date Sampled: 11/30/11Site: C1-Out 12/2/11 RBFWAnalysis Date:11:40QualNelacUnitResultParameterQualNelacUnitResultParameter


< 0.5 ADichlorodifluoromethane ug/L < 0.5 AChloromethane ug/L< 0.5 AVinyl chloride ug/L < 0.5 ABromomethane ug/L< 0.5 AChloroethane ug/L < 0.5 ATrichlorofluoromethane ug/L< 0.5 A1,1-Dichloroethene ug/L < 5.0 Nt-Butanol ug/L< 1.0 AMethylene chloride ug/L < 0.5 AMethyl-t-butyl ether (MTBE) ug/L< 0.5 Atrans-1,2-Dichloroethene ug/L < 0.5 ADi-isopropyl ether (DIPE) ug/L< 0.5 AEthyl-t-butyl ether (ETBE) ug/L < 0.5 A1,1-Dichloroethane ug/L< 0.5 A2,2-Dichloropropane ug/L < 0.5 Acis-1,2-Dichloroethene ug/L< 0.5 ABromochloromethane ug/L < 0.5 AChloroform ug/L< 0.5 A1,1,1-Trichloroethane ug/L < 0.5 ACarbon tetrachloride ug/L< 0.5 A1,1-Dichloropropene ug/L < 0.5 ABenzene ug/L< 0.5 At-Amylmethyl ether (TAME) ug/L < 0.5 A1,2-Dichloroethane ug/L< 0.5 ATrichloroethene ug/L < 0.5 A1,2-Dichloropropane ug/L< 0.5 ADibromomethane ug/L < 0.5 ABromodichloromethane ug/L< 0.5 Acis-1,3-Dichloropropene ug/L < 0.5 AToluene ug/L< 0.5 Atrans-1,3-Dichloropropene ug/L < 0.5 A1,1,2-Trichloroethane ug/L< 0.5 ATetrachloroethene ug/L < 0.5 A1,3-Dichloropropane ug/L< 0.5 ADibromochloromethane ug/L < 0.5 AChlorobenzene ug/L< 0.5 AEthylbenzene ug/L < 0.5 A1,1,1,2-Tetrachloroethane ug/L< 1.0 AXylenes, Total ug/L < 0.5 AStyrene ug/L< 0.5 ABromoform ug/L < 0.5 AIsopropylbenzene ug/L< 0.5 A1,1,2,2-Tetrachloroethane ug/L < 0.5 ABromobenzene ug/L< 0.5 An-Propylbenzene ug/L < 0.5 A1,2,3-Trichloropropane ug/L< 0.5 A2-Chlorotoluene ug/L < 0.5 A1,3,5-Trimethylbenzene ug/L< 0.5 A4-Chlorotoluene ug/L < 0.5 At-Butylbenzene ug/L< 0.5 A1,2,4-Trimethylbenzene ug/L < 0.5 As-Butylbenzene ug/L< 0.5 A4-Isopropyltoluene ug/L < 0.5 A1,3-Dichlorobenzene ug/L< 0.5 A1,4-Dichlorobenzene ug/L < 0.5 An-Butylbenzene ug/L< 0.5 A1,2-Dichlorobenzene ug/L < 0.5 A1,2,4-Trichlorobenzene ug/L< 0.5 AHexachlorobutadiene ug/L < 0.5 ANaphthalene ug/L< 0.5 U1,3,5-Trichlorobenzene ug/L < 0.5 A1,2,3-Trichlorobenzene ug/L< 2.0 ATotal Trihalomethanes ug/L 93 ASurr. 1 (4-Bromofluorobenzene) %

88 ASurr. 2 (1,2-Dichlorobenzene d4) % 1 UUnidentified Peaks

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1111-1766411/30/2011


003 Date Sampled: 11/30/11Site: Total Infl 12/12/11 RBFWAnalysis Date:11:42QualNelacUnitResultParameterQualNelacUnitResultParameter


< 0.5 ADichlorodifluoromethane ug/L < 0.5 AChloromethane ug/L< 0.5 AVinyl chloride ug/L < 0.5 ABromomethane ug/L< 0.5 AChloroethane ug/L < 0.5 ATrichlorofluoromethane ug/L< 0.5 A1,1-Dichloroethene ug/L < 5.0 Nt-Butanol ug/L< 1.0 AMethylene chloride ug/L 5.1 AMethyl-t-butyl ether (MTBE) ug/L< 0.5 Atrans-1,2-Dichloroethene ug/L < 0.5 ADi-isopropyl ether (DIPE) ug/L< 0.5 AEthyl-t-butyl ether (ETBE) ug/L < 0.5 A1,1-Dichloroethane ug/L< 0.5 A2,2-Dichloropropane ug/L < 0.5 Acis-1,2-Dichloroethene ug/L< 0.5 ABromochloromethane ug/L < 0.5 AChloroform ug/L< 0.5 A1,1,1-Trichloroethane ug/L < 0.5 ACarbon tetrachloride ug/L< 0.5 A1,1-Dichloropropene ug/L < 0.5 ABenzene ug/L< 0.5 At-Amylmethyl ether (TAME) ug/L < 0.5 A1,2-Dichloroethane ug/L< 0.5 ATrichloroethene ug/L < 0.5 A1,2-Dichloropropane ug/L< 0.5 ADibromomethane ug/L < 0.5 ABromodichloromethane ug/L< 0.5 Acis-1,3-Dichloropropene ug/L < 0.5 AToluene ug/L< 0.5 Atrans-1,3-Dichloropropene ug/L < 0.5 A1,1,2-Trichloroethane ug/L< 0.5 ATetrachloroethene ug/L < 0.5 A1,3-Dichloropropane ug/L< 0.5 ADibromochloromethane ug/L < 0.5 AChlorobenzene ug/L< 0.5 AEthylbenzene ug/L < 0.5 A1,1,1,2-Tetrachloroethane ug/L< 1.0 AXylenes, Total ug/L < 0.5 AStyrene ug/L< 0.5 ABromoform ug/L < 0.5 AIsopropylbenzene ug/L< 0.5 A1,1,2,2-Tetrachloroethane ug/L < 0.5 ABromobenzene ug/L< 0.5 An-Propylbenzene ug/L < 0.5 A1,2,3-Trichloropropane ug/L< 0.5 A2-Chlorotoluene ug/L < 0.5 A1,3,5-Trimethylbenzene ug/L< 0.5 A4-Chlorotoluene ug/L < 0.5 At-Butylbenzene ug/L< 0.5 A1,2,4-Trimethylbenzene ug/L < 0.5 As-Butylbenzene ug/L< 0.5 A4-Isopropyltoluene ug/L < 0.5 A1,3-Dichlorobenzene ug/L< 0.5 A1,4-Dichlorobenzene ug/L < 0.5 An-Butylbenzene ug/L< 0.5 A1,2-Dichlorobenzene ug/L < 0.5 A1,2,4-Trichlorobenzene ug/L< 0.5 AHexachlorobutadiene ug/L < 0.5 ANaphthalene ug/L< 0.5 U1,3,5-Trichlorobenzene ug/L < 0.5 A1,2,3-Trichlorobenzene ug/L< 2.0 ATotal Trihalomethanes ug/L 106 ASurr. 1 (4-Bromofluorobenzene) %102 ASurr. 2 (1,2-Dichlorobenzene d4) % 0 UUnidentified Peaks

Report Summary of Qualifiers and Notes

Samples were received at the laboratory with a temperature of 8.2 degrees Celsius. Samples must be received in acooler with sufficient ice to attain a temperature of 6 degrees Celsius or below. Samples must not be frozen.

S. V


Laboratory Report

SV MobilPROJECT:


DATE REPORTED:


Atten: Mr. Chris Stone SAMPLER:April 02, 2012

1203-04042

Eric Swiech

March 28, 2012

Reviewed by:








ELAP 11263

www.endynelabs.com


S. V


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1203-0404203/28/2012


001 Date Sampled: 3/28/12Site: C-2 Out 3/29/12 RBFWAnalysis Date:10:45QualNelacUnitResultParameterQualNelacUnitResultParameter


< 0.5 ADichlorodifluoromethane ug/L < 0.5 AChloromethane ug/L< 0.5 AVinyl chloride ug/L < 0.5 ABromomethane ug/L< 0.5 AChloroethane ug/L < 0.5 ATrichlorofluoromethane ug/L< 0.5 A1,1-Dichloroethene ug/L < 1.0 AMethylene chloride ug/L< 0.5 AMethyl-t-butyl ether (MTBE) ug/L < 0.5 Atrans-1,2-Dichloroethene ug/L< 0.5 A1,1-Dichloroethane ug/L < 0.5 A2,2-Dichloropropane ug/L< 0.5 Acis-1,2-Dichloroethene ug/L < 0.5 ABromochloromethane ug/L< 0.5 AChloroform ug/L < 0.5 A1,1,1-Trichloroethane ug/L< 0.5 ACarbon tetrachloride ug/L < 0.5 A1,1-Dichloropropene ug/L< 0.5 ABenzene ug/L < 0.5 A1,2-Dichloroethane ug/L< 0.5 ATrichloroethene ug/L < 0.5 A1,2-Dichloropropane ug/L< 0.5 ADibromomethane ug/L < 0.5 ABromodichloromethane ug/L< 0.5 Acis-1,3-Dichloropropene ug/L < 0.5 AToluene ug/L< 0.5 Atrans-1,3-Dichloropropene ug/L < 0.5 A1,1,2-Trichloroethane ug/L< 0.5 ATetrachloroethene ug/L < 0.5 A1,3-Dichloropropane ug/L< 0.5 ADibromochloromethane ug/L < 0.5 AChlorobenzene ug/L< 0.5 AEthylbenzene ug/L < 0.5 A1,1,1,2-Tetrachloroethane ug/L< 1.0 AXylenes, Total ug/L < 0.5 AStyrene ug/L< 0.5 ABromoform ug/L < 0.5 AIsopropylbenzene ug/L< 0.5 A1,1,2,2-Tetrachloroethane ug/L < 0.5 ABromobenzene ug/L< 0.5 An-Propylbenzene ug/L < 0.5 A1,2,3-Trichloropropane ug/L< 0.5 A2-Chlorotoluene ug/L < 0.5 A1,3,5-Trimethylbenzene ug/L< 0.5 A4-Chlorotoluene ug/L < 0.5 At-Butylbenzene ug/L< 0.5 A1,2,4-Trimethylbenzene ug/L < 0.5 As-Butylbenzene ug/L< 0.5 A4-Isopropyltoluene ug/L < 0.5 A1,3-Dichlorobenzene ug/L< 0.5 A1,4-Dichlorobenzene ug/L < 0.5 An-Butylbenzene ug/L< 0.5 A1,2-Dichlorobenzene ug/L < 0.5 A1,2,4-Trichlorobenzene ug/L< 0.5 AHexachlorobutadiene ug/L < 0.5 ANaphthalene ug/L< 0.5 A1,2,3-Trichlorobenzene ug/L 103 ASurr. 1 (4-Bromofluorobenzene) %

97 ASurr. 2 (1,2-Dichlorobenzene d4) %

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1203-0404203/28/2012




< 0.5 ADichlorodifluoromethane ug/L < 0.5 AChloromethane ug/L< 0.5 AVinyl chloride ug/L < 0.5 ABromomethane ug/L< 0.5 AChloroethane ug/L < 0.5 ATrichlorofluoromethane ug/L< 0.5 A1,1-Dichloroethene ug/L < 1.0 AMethylene chloride ug/L0.6 AMethyl-t-butyl ether (MTBE) ug/L < 0.5 Atrans-1,2-Dichloroethene ug/L

< 0.5 A1,1-Dichloroethane ug/L < 0.5 A2,2-Dichloropropane ug/L< 0.5 Acis-1,2-Dichloroethene ug/L < 0.5 ABromochloromethane ug/L< 0.5 AChloroform ug/L < 0.5 A1,1,1-Trichloroethane ug/L< 0.5 ACarbon tetrachloride ug/L < 0.5 A1,1-Dichloropropene ug/L< 0.5 ABenzene ug/L < 0.5 A1,2-Dichloroethane ug/L< 0.5 ATrichloroethene ug/L < 0.5 A1,2-Dichloropropane ug/L< 0.5 ADibromomethane ug/L < 0.5 ABromodichloromethane ug/L< 0.5 Acis-1,3-Dichloropropene ug/L < 0.5 AToluene ug/L< 0.5 Atrans-1,3-Dichloropropene ug/L < 0.5 A1,1,2-Trichloroethane ug/L< 0.5 ATetrachloroethene ug/L < 0.5 A1,3-Dichloropropane ug/L< 0.5 ADibromochloromethane ug/L < 0.5 AChlorobenzene ug/L< 0.5 AEthylbenzene ug/L < 0.5 A1,1,1,2-Tetrachloroethane ug/L< 1.0 AXylenes, Total ug/L < 0.5 AStyrene ug/L< 0.5 ABromoform ug/L < 0.5 AIsopropylbenzene ug/L< 0.5 A1,1,2,2-Tetrachloroethane ug/L < 0.5 ABromobenzene ug/L< 0.5 An-Propylbenzene ug/L < 0.5 A1,2,3-Trichloropropane ug/L< 0.5 A2-Chlorotoluene ug/L < 0.5 A1,3,5-Trimethylbenzene ug/L< 0.5 A4-Chlorotoluene ug/L < 0.5 At-Butylbenzene ug/L< 0.5 A1,2,4-Trimethylbenzene ug/L < 0.5 As-Butylbenzene ug/L< 0.5 A4-Isopropyltoluene ug/L < 0.5 A1,3-Dichlorobenzene ug/L< 0.5 A1,4-Dichlorobenzene ug/L < 0.5 An-Butylbenzene ug/L< 0.5 A1,2-Dichlorobenzene ug/L < 0.5 A1,2,4-Trichlorobenzene ug/L< 0.5 AHexachlorobutadiene ug/L < 0.5 ANaphthalene ug/L< 0.5 A1,2,3-Trichlorobenzene ug/L 100 ASurr. 1 (4-Bromofluorobenzene) %

99 ASurr. 2 (1,2-Dichlorobenzene d4) %

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1203-0404203/28/2012


003 Date Sampled: 3/28/12Site: Total In 3/30/12 RBFWAnalysis Date:10:49QualNelacUnitResultParameterQualNelacUnitResultParameter


< 0.5 ADichlorodifluoromethane ug/L < 0.5 AChloromethane ug/L< 0.5 AVinyl chloride ug/L < 0.5 ABromomethane ug/L< 0.5 AChloroethane ug/L < 0.5 ATrichlorofluoromethane ug/L< 0.5 A1,1-Dichloroethene ug/L < 1.0 AMethylene chloride ug/L5.2 AMethyl-t-butyl ether (MTBE) ug/L < 0.5 Atrans-1,2-Dichloroethene ug/L

< 0.5 A1,1-Dichloroethane ug/L < 0.5 A2,2-Dichloropropane ug/L< 0.5 Acis-1,2-Dichloroethene ug/L < 0.5 ABromochloromethane ug/L< 0.5 AChloroform ug/L < 0.5 A1,1,1-Trichloroethane ug/L< 0.5 ACarbon tetrachloride ug/L < 0.5 A1,1-Dichloropropene ug/L< 0.5 ABenzene ug/L < 0.5 A1,2-Dichloroethane ug/L< 0.5 ATrichloroethene ug/L < 0.5 A1,2-Dichloropropane ug/L< 0.5 ADibromomethane ug/L < 0.5 ABromodichloromethane ug/L< 0.5 Acis-1,3-Dichloropropene ug/L < 0.5 AToluene ug/L< 0.5 Atrans-1,3-Dichloropropene ug/L < 0.5 A1,1,2-Trichloroethane ug/L< 0.5 ATetrachloroethene ug/L < 0.5 A1,3-Dichloropropane ug/L< 0.5 ADibromochloromethane ug/L < 0.5 AChlorobenzene ug/L< 0.5 AEthylbenzene ug/L < 0.5 A1,1,1,2-Tetrachloroethane ug/L< 1.0 AXylenes, Total ug/L < 0.5 AStyrene ug/L< 0.5 ABromoform ug/L < 0.5 AIsopropylbenzene ug/L< 0.5 A1,1,2,2-Tetrachloroethane ug/L < 0.5 ABromobenzene ug/L< 0.5 An-Propylbenzene ug/L < 0.5 A1,2,3-Trichloropropane ug/L< 0.5 A2-Chlorotoluene ug/L < 0.5 A1,3,5-Trimethylbenzene ug/L< 0.5 A4-Chlorotoluene ug/L < 0.5 At-Butylbenzene ug/L< 0.5 A1,2,4-Trimethylbenzene ug/L < 0.5 As-Butylbenzene ug/L< 0.5 A4-Isopropyltoluene ug/L < 0.5 A1,3-Dichlorobenzene ug/L< 0.5 A1,4-Dichlorobenzene ug/L < 0.5 An-Butylbenzene ug/L< 0.5 A1,2-Dichlorobenzene ug/L < 0.5 A1,2,4-Trichlorobenzene ug/L< 0.5 AHexachlorobutadiene ug/L < 0.5 ANaphthalene ug/L< 0.5 A1,2,3-Trichlorobenzene ug/L 103 ASurr. 1 (4-Bromofluorobenzene) %106 ASurr. 2 (1,2-Dichlorobenzene d4) %

S. V


Laboratory Report

S.V. MobilPROJECT:


DATE REPORTED:


Atten: Mr. Chris Stone SAMPLER:August 28, 2012

1208-12580

Eric

August 23, 2012

Reviewed by:








ELAP 11263

www.endynelabs.com


S. V


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Page 2 of 4

CLIENT:PROJECT: S.V. Mobil


1208-1258008/23/2012




< 0.5 ADichlorodifluoromethane ug/L < 0.5 AChloromethane ug/L< 0.5 AVinyl chloride ug/L < 0.5 ABromomethane ug/L< 0.5 AChloroethane ug/L < 0.5 ATrichlorofluoromethane ug/L< 0.5 A1,1-Dichloroethene ug/L < 5.0 Nt-Butanol ug/L< 1.0 AMethylene chloride ug/L < 0.5 AMethyl-t-butyl ether (MTBE) ug/L< 0.5 Atrans-1,2-Dichloroethene ug/L < 0.5 ADi-isopropyl ether (DIPE) ug/L< 0.5 AEthyl-t-butyl ether (ETBE) ug/L < 0.5 A1,1-Dichloroethane ug/L< 0.5 A2,2-Dichloropropane ug/L < 0.5 Acis-1,2-Dichloroethene ug/L< 0.5 ABromochloromethane ug/L < 0.5 AChloroform ug/L< 0.5 A1,1,1-Trichloroethane ug/L < 0.5 ACarbon tetrachloride ug/L< 0.5 A1,1-Dichloropropene ug/L < 0.5 ABenzene ug/L< 0.5 At-Amylmethyl ether (TAME) ug/L < 0.5 A1,2-Dichloroethane ug/L< 0.5 ATrichloroethene ug/L < 0.5 A1,2-Dichloropropane ug/L< 0.5 ADibromomethane ug/L < 0.5 ABromodichloromethane ug/L< 0.5 Acis-1,3-Dichloropropene ug/L < 0.5 AToluene ug/L< 0.5 Atrans-1,3-Dichloropropene ug/L < 0.5 A1,1,2-Trichloroethane ug/L< 0.5 ATetrachloroethene ug/L < 0.5 A1,3-Dichloropropane ug/L< 0.5 ADibromochloromethane ug/L < 0.5 AChlorobenzene ug/L< 0.5 AEthylbenzene ug/L < 0.5 A1,1,1,2-Tetrachloroethane ug/L< 1.0 AXylenes, Total ug/L < 0.5 AStyrene ug/L< 0.5 ABromoform ug/L < 0.5 AIsopropylbenzene ug/L< 0.5 A1,1,2,2-Tetrachloroethane ug/L < 0.5 ABromobenzene ug/L< 0.5 An-Propylbenzene ug/L < 0.5 A1,2,3-Trichloropropane ug/L< 0.5 A2-Chlorotoluene ug/L < 0.5 A1,3,5-Trimethylbenzene ug/L< 0.5 A4-Chlorotoluene ug/L < 0.5 At-Butylbenzene ug/L< 0.5 A1,2,4-Trimethylbenzene ug/L < 0.5 As-Butylbenzene ug/L< 0.5 A4-Isopropyltoluene ug/L < 0.5 A1,3-Dichlorobenzene ug/L< 0.5 A1,4-Dichlorobenzene ug/L < 0.5 An-Butylbenzene ug/L< 0.5 A1,2-Dichlorobenzene ug/L < 0.5 A1,2,4-Trichlorobenzene ug/L< 0.5 AHexachlorobutadiene ug/L < 0.5 ANaphthalene ug/L< 0.5 U1,3,5-Trichlorobenzene ug/L < 0.5 A1,2,3-Trichlorobenzene ug/L< 2.0 ATotal Trihalomethanes ug/L 92 ASurr. 1 (4-Bromofluorobenzene) %103 ASurr. 2 (1,2-Dichlorobenzene d4) % 0 UUnidentified Peaks

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Page 3 of 4



1208-1258008/23/2012




< 0.5 ADichlorodifluoromethane ug/L 0.8 AChloromethane ug/L< 0.5 AVinyl chloride ug/L < 0.5 ABromomethane ug/L< 0.5 AChloroethane ug/L < 0.5 ATrichlorofluoromethane ug/L< 0.5 A1,1-Dichloroethene ug/L < 5.0 Nt-Butanol ug/L< 1.0 AMethylene chloride ug/L < 0.5 AMethyl-t-butyl ether (MTBE) ug/L< 0.5 Atrans-1,2-Dichloroethene ug/L < 0.5 ADi-isopropyl ether (DIPE) ug/L< 0.5 AEthyl-t-butyl ether (ETBE) ug/L < 0.5 A1,1-Dichloroethane ug/L< 0.5 A2,2-Dichloropropane ug/L < 0.5 Acis-1,2-Dichloroethene ug/L< 0.5 ABromochloromethane ug/L < 0.5 AChloroform ug/L< 0.5 A1,1,1-Trichloroethane ug/L < 0.5 ACarbon tetrachloride ug/L< 0.5 A1,1-Dichloropropene ug/L < 0.5 ABenzene ug/L< 0.5 At-Amylmethyl ether (TAME) ug/L < 0.5 A1,2-Dichloroethane ug/L< 0.5 ATrichloroethene ug/L < 0.5 A1,2-Dichloropropane ug/L< 0.5 ADibromomethane ug/L < 0.5 ABromodichloromethane ug/L< 0.5 Acis-1,3-Dichloropropene ug/L < 0.5 AToluene ug/L< 0.5 Atrans-1,3-Dichloropropene ug/L < 0.5 A1,1,2-Trichloroethane ug/L< 0.5 ATetrachloroethene ug/L < 0.5 A1,3-Dichloropropane ug/L< 0.5 ADibromochloromethane ug/L < 0.5 AChlorobenzene ug/L< 0.5 AEthylbenzene ug/L < 0.5 A1,1,1,2-Tetrachloroethane ug/L< 1.0 AXylenes, Total ug/L < 0.5 AStyrene ug/L< 0.5 ABromoform ug/L < 0.5 AIsopropylbenzene ug/L< 0.5 A1,1,2,2-Tetrachloroethane ug/L < 0.5 ABromobenzene ug/L< 0.5 An-Propylbenzene ug/L < 0.5 A1,2,3-Trichloropropane ug/L< 0.5 A2-Chlorotoluene ug/L < 0.5 A1,3,5-Trimethylbenzene ug/L< 0.5 A4-Chlorotoluene ug/L < 0.5 At-Butylbenzene ug/L< 0.5 A1,2,4-Trimethylbenzene ug/L < 0.5 As-Butylbenzene ug/L< 0.5 A4-Isopropyltoluene ug/L < 0.5 A1,3-Dichlorobenzene ug/L< 0.5 A1,4-Dichlorobenzene ug/L < 0.5 An-Butylbenzene ug/L< 0.5 A1,2-Dichlorobenzene ug/L < 0.5 A1,2,4-Trichlorobenzene ug/L< 0.5 AHexachlorobutadiene ug/L < 0.5 ANaphthalene ug/L< 0.5 U1,3,5-Trichlorobenzene ug/L < 0.5 A1,2,3-Trichlorobenzene ug/L< 2.0 ATotal Trihalomethanes ug/L 96 ASurr. 1 (4-Bromofluorobenzene) %111 ASurr. 2 (1,2-Dichlorobenzene d4) % 0 UUnidentified Peaks

S. V


Laboratory Report


Page 4 of 4



1208-1258008/23/2012


003 Date Sampled: 8/22/12Site: Total In 8/23/12 RBFWAnalysis Date:12:09QualNelacUnitResultParameterQualNelacUnitResultParameter


< 0.5 ADichlorodifluoromethane ug/L < 0.5 AChloromethane ug/L< 0.5 AVinyl chloride ug/L < 0.5 ABromomethane ug/L< 0.5 AChloroethane ug/L < 0.5 ATrichlorofluoromethane ug/L< 0.5 A1,1-Dichloroethene ug/L < 5.0 Nt-Butanol ug/L< 1.0 AMethylene chloride ug/L 3.8 AMethyl-t-butyl ether (MTBE) ug/L< 0.5 Atrans-1,2-Dichloroethene ug/L < 0.5 ADi-isopropyl ether (DIPE) ug/L< 0.5 AEthyl-t-butyl ether (ETBE) ug/L < 0.5 A1,1-Dichloroethane ug/L< 0.5 A2,2-Dichloropropane ug/L < 0.5 Acis-1,2-Dichloroethene ug/L< 0.5 ABromochloromethane ug/L < 0.5 AChloroform ug/L< 0.5 A1,1,1-Trichloroethane ug/L < 0.5 ACarbon tetrachloride ug/L< 0.5 A1,1-Dichloropropene ug/L < 0.5 ABenzene ug/L< 0.5 At-Amylmethyl ether (TAME) ug/L < 0.5 A1,2-Dichloroethane ug/L< 0.5 ATrichloroethene ug/L < 0.5 A1,2-Dichloropropane ug/L< 0.5 ADibromomethane ug/L < 0.5 ABromodichloromethane ug/L< 0.5 Acis-1,3-Dichloropropene ug/L < 0.5 AToluene ug/L< 0.5 Atrans-1,3-Dichloropropene ug/L < 0.5 A1,1,2-Trichloroethane ug/L< 0.5 ATetrachloroethene ug/L < 0.5 A1,3-Dichloropropane ug/L< 0.5 ADibromochloromethane ug/L < 0.5 AChlorobenzene ug/L< 0.5 AEthylbenzene ug/L < 0.5 A1,1,1,2-Tetrachloroethane ug/L< 1.0 AXylenes, Total ug/L < 0.5 AStyrene ug/L< 0.5 ABromoform ug/L < 0.5 AIsopropylbenzene ug/L< 0.5 A1,1,2,2-Tetrachloroethane ug/L < 0.5 ABromobenzene ug/L< 0.5 An-Propylbenzene ug/L < 0.5 A1,2,3-Trichloropropane ug/L< 0.5 A2-Chlorotoluene ug/L < 0.5 A1,3,5-Trimethylbenzene ug/L< 0.5 A4-Chlorotoluene ug/L < 0.5 At-Butylbenzene ug/L< 0.5 A1,2,4-Trimethylbenzene ug/L < 0.5 As-Butylbenzene ug/L< 0.5 A4-Isopropyltoluene ug/L < 0.5 A1,3-Dichlorobenzene ug/L< 0.5 A1,4-Dichlorobenzene ug/L < 0.5 An-Butylbenzene ug/L< 0.5 A1,2-Dichlorobenzene ug/L < 0.5 A1,2,4-Trichlorobenzene ug/L< 0.5 AHexachlorobutadiene ug/L < 0.5 ANaphthalene ug/L< 0.5 U1,3,5-Trichlorobenzene ug/L < 0.5 A1,2,3-Trichlorobenzene ug/L< 2.0 ATotal Trihalomethanes ug/L 97 ASurr. 1 (4-Bromofluorobenzene) %114 ASurr. 2 (1,2-Dichlorobenzene d4) % 0 UUnidentified Peaks

S. V


APPENDIX C

S. V


TABLE 1Point-of-Entry Treatment System

VOC Analytical ResultsPage 1 of 4

South Village MobilNorthfield, Vermont

Sample Location Date Benzene Toluene Ethyl

Benzene Xylenes Naphthalene MTBE TBA TAME ETBE Carbon Disulfide

Chloro- methane

Totalizer (gallons)

C-1 Infl 05/20/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 226 43.9 29.1 ND<0.5 ND<0.5 ND<0.5 NAC-1 Infl 06/10/04 0.7 ND<0.5 ND<0.5 ND<0.5 ND<0.5 220 NA NA NA ND<0.5 ND<0.5 NAC-1 Infl 07/26/04 5.0 ND<0.5 ND<0.5 ND<0.5 ND<0.5 280 60.0 31.0 ND<0.5 ND<0.5 ND<0.5C-1 Effl 07/26/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 2.3 70.0 ND<0.5 ND<0.5 0.8 ND<0.5C-2 Effl 07/26/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 30.0 ND<0.5 ND<0.5 ND<0.5 ND<0.5C-1 Infl 09/09/04 0.6 ND<0.5 ND<0.5 ND<0.5 ND<0.5 142 ND<10 20.2 ND<0.5 ND<0.5 ND<0.5C-1 Effl 09/09/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 59.5 ND<10 ND<0.5 ND<0.5 ND<0.5 ND<0.5C-2 Effl 09/09/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 15.9 ND<0.5 ND<0.5 ND<0.5 ND<0.5C-1 Infl 09/09/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 116 ND<10 16.0 ND<0.5 ND<0.5 ND<0.5C-1 Effl 09/09/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 83.4 ND<10 1.1 ND<0.5 ND<0.5 ND<0.5C-2 Effl 09/09/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<10 ND<0.5 ND<0.5 ND<0.5 ND<0.5C-1 Infl 09/09/04 0.6 ND<0.5 ND<0.5 ND<0.5 ND<0.5 120 ND<10 17.4 ND<0.5 ND<0.5 ND<0.5C-1 Effl 09/09/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 98.8 19.3 2.5 ND<0.5 0.8 ND<0.5C-2 Effl 09/09/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 18.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5C-1 Infl 10/19/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 214 53.7 28.6 0.5 ND<0.5 ND<0.5C-1 Effl 10/19/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 105 49.4 0.6 ND<0.5 0.7 ND<0.5C-2 Effl 10/19/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 46.2 ND<0.5 ND<0.5 ND<0.5 ND<0.5C-1 Infl 12/19/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 176 19.4 19.7 0.5 ND<0.5 ND<0.5C-1 Effl 12/19/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 199 37.8 0.6 ND<0.5 ND<0.5 ND<0.5C-2 Effl 12/19/04 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 1.5 40.7 ND<0.5 ND<0.5 ND<0.5 ND<0.5C-1 Infl 02/11/05 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 108 ND<10 15.3 0.8 ND<0.5 2.0

C-1 Effl 02/11/05 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<10 ND<0.5 ND<0.5 ND<0.5 0.7C-2 Effl 02/11/05 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<10 ND<0.5 ND<0.5 ND<0.5 ND<0.5C-1 Infl 03/08/05 3.1 ND<0.5 ND<0.5 ND<0.5 ND<0.5 128 26.5 16.6 0.8 ND<0.5 ND<0.5C-1 Effl 03/08/05 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 24.0 ND<0.5 ND<0.5 ND<0.5 ND<0.5C-2 Effl 03/08/05 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<10 ND<0.5 ND<0.5 ND<0.5 ND<0.5C-1 Infl 04/15/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 88.4 NA NA NA NA ND<0.5C-1 Effl 04/15/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 NA NA NA NA ND<0.5

NA

NA

NA

NA

NA

NA

NA

NA

77,306C-2 Effl 04/15/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 NA NA NA NA ND<0.5C-1 Infl 05/24/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 128 NA NA NA NA ND<0.5C-1 Effl 05/24/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 NA NA NA NA ND<0.5C-2 Effl 05/24/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 NA NA NA NA ND<0.5C-1 Infl 06/22/05 1.4 ND<0.5 ND<0.5 ND<1.0 ND<1.0 61.5 8.0 NA NA NA ND<0.5C-1 Effl 06/22/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 10.0 NA NA NA ND<0.5C-2 Effl 06/22/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 12.1 NA NA NA ND<0.5C-1 Infl 07/31/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 93.6 33.8 NA NA NA ND<0.5C-1 Effl 07/31/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<2.0 NA NA NA ND<0.5C-2 Effl 07/31/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<2.0 NA NA NA ND<0.5

104,486

86,570

93,736

Stone Environmental, Inc. SV Mobil.POET.xls







Chloro- methane

Totalizer (gallons)

C-1 Infl 08/30/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 89.7 20.0 9.2 1.6 NA ND<0.5C-1 Effl 08/30/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 20.9 ND<1.0 ND<1.0 NA ND<0.5C-2 Effl 08/30/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 13.1 ND<1.0 ND<1.0 NA ND<0.5C-1 Infl 09/28/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 71.1 20.8 8.4 1.5 NA ND<0.5C-1 Effl* 09/28/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 2.3 17.7 ND<1.0 ND<1.0 NA ND<0.5C-2 Effl 09/28/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 17.3 ND<1.0 ND<1.0 NA ND<0.5C-1 Infl 11/02/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 76.6 10.8 8.2 1.7 NA ND<0.5C-1 Effl 11/02/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 16.8 9.8 ND<1.0 ND<1.0 NA ND<0.5C-2 Effl 11/02/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 12.5 ND<1.0 ND<1.0 NA ND<0.5C-1 Infl 12/06/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 74.8 15.0 7.8 2.2 NA ND<0.5C-1 Effl 12/06/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND<1.0 ND<1.0 NA ND<0.5C-2 Effl 12/06/05 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<2.0 ND<1.0 ND<1.0 NA ND<0.5C-1 Infl 01/18/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 71.2 12.0 8.3 1.6 NA ND<0.5C-1 Effl 01/18/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 11.1 ND<1.0 ND<1.0 NA ND<0.5C-2 Effl 01/18/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 2.6 ND<1.0 ND<1.0 NA ND<0.5C-1 Infl 03/03/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 85.9 12.3 9.3 1.8 NA ND<0.5C-1 Effl 03/03/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 8.8 ND<1.0 ND<1.0 NA ND<0.5C-2 Effl 03/03/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<1.0 ND<1.0 6.8 ND<1.0 ND<1.0 NA ND<0.5C-1 Infl 04/14/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 65.9 22.7 9.4 2.1 NA ND<0.5C-1 Effl 04/14/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<1.0 12.7 ND<1.0 ND<5.0 NA ND<0.5C-2 Effl 04/14/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<1.0 9.0 ND<1.0 ND<5.0 NA ND<0.5C-1 Infl 06/05/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 55.5 ND<10.0 6.6 ND<5.0 NA ND<0.5C-1 Effl 06/05/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<2.0 ND<10.0 ND<0.5 ND<5.0 NA ND<0.5C-2 Effl 06/05/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<2.0 ND<10.0 ND<0.5 ND<5.0 NA ND<0.5C-1 Infl 06/30/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 36.6 7.9 5.2 1.2 NA ND<0.5C-1 Effl 06/30/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 8.4 ND<0.5 ND<5.0 NA ND<0.5C-2 Effl 06/30/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 6.8 ND<0.5 ND<5.0 NA ND<0.5C-1 Infl 08/15/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 56.5 10.5 5.9 1.7 NA ND<0.5

156,300

122,699

133,148

113,206

142,300

174,400

185,380

198,380

204,612

C-1 Effl 08/15/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 8.4 ND<0.5 ND<5.0 NA ND<0.5C-2 Effl 08/15/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 9.8 ND<0.5 ND<5.0 NA ND<0.5C-1 Infl 10/06/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 40.2 6.8 4.2 ND<5.0 NA ND<0.5C-1 Effl 10/06/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 8.9 ND<0.5 ND<5.0 NA ND<0.5C-2 Effl 10/06/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 7.5 ND<0.5 ND<5.0 NA ND<0.5C-1 Infl 12/11/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 49.2 17.3 5.8 ND<5.0 NA ND<0.5C-1 Effl 12/11/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 5.9 ND<0.5 ND<5.0 NA ND<0.5C-2 Effl 12/11/06 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 10.0 ND<0.5 ND<5.0 NA ND<0.5C-1 Infl 01/26/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 35.3 15.2 5.7 ND<5.0 NA ND<0.5C-1 Effl 01/26/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<5.0 NA ND<0.5C-2 Effl 01/26/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 5.6 ND<0.5 ND<5.0 NA ND<0.5

232,888

NA

217,930

263,490








Chloro- methane

Totalizer (gallons)

C-1 Infl 03/19/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 27.7 11.7 5.1 ND<5.0 NA ND<0.5C-1 Effl 03/19/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 5.9 ND<0.5 ND<5.0 NA ND<0.5C-2 Effl 03/19/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<5.0 NA ND<0.5C-1 Infl 04/27/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 30.6 8.5 3.0 ND<5.0 NA ND<0.5C-1 Effl 04/27/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<5.0 NA ND<0.5C-2 Effl 04/27/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<5.0 NA ND<0.5C-1 Infl 05/30/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 32.6 19.5 3.7 0.7 NA ND<0.5C-1 Effl 05/30/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<5.0 NA ND<0.5C-2 Effl 05/30/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<5.0 NA ND<0.5C-1 Infl 07/30/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 26.9 ND<5.0 3.4 0.5 NA ND<0.5C-1 Effl 07/30/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-2 Effl 07/30/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-1 Infl 09/05/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 27.2 9.4 3.6 0.6 NA ND<0.5C-1 Effl 09/05/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-2 Effl 09/05/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-1 Infl 10/24/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 29.4 9.2 3.6 0.7 NA ND<0.5C-1 Effl 10/24/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-2 Effl 10/24/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 5.0 ND<0.5 ND<0.5 NA ND<0.5C-1 Infl 12/26/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 22.2 ND<5.0 2.8 ND<0.5 NA ND<0.5C-1 Effl 12/26/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-2 Effl 12/26/07 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-1 Infl 04/04/08 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 10.9 ND<5.0 1.4 ND<0.5 NA ND<0.5C-1 Effl 04/04/08 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 5.7 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-2 Effl 04/04/08 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-1 Infl 07/30/08 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 15.0 ND<5.0 1.9 ND<0.5 NA ND<0.5C-1 Effl 07/30/08 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-2 Effl 07/30/08 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-1 Infl 01/09/09 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 13.6 ND<5.0 1.3 ND<0.5 NA ND<0.5C-1 Effl 01/09/09 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-2 Effl 01/09/09 ND<0 5 ND<0 5 ND<0 5 ND<1 0 ND<0 5 ND<0 5 ND<5 0 ND<0 5 ND<0 5 NA ND<0 5

277,335

287,426

296,900

313,241

326,416

468,042

421,078

388,518

342,615

359,479

C 2 Effl 01/09/09 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-1 Infl 04/02/09 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 10.6 ND<5.0 1.0 ND<0.5 NA ND<0.5C-1 Effl 04/02/09 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-2 Effl 04/02/09 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-1 Infl 09/09/09 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 14.2 ND<5.0 1.1 ND<0.5 NA ND<0.5C-1 Effl 09/09/09 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-2 Effl 09/09/09 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 ND<5.0 ND<0.5 ND<0.5 NA ND<0.5C-1 Infl 02/15/10 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 9.5 NA NA NA NA ND<0.5C-1 Effl 02/15/10 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 NA NA NA NA ND<0.5C-2 Effl 02/15/10 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 NA NA NA NA ND<0.5C-1 Infl 11/30/11 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 5.1 NA ND<0.5 ND<0.5 NA ND<0.5C-1 Effl 11/30/11 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 NA ND<0.5 ND<0.5 NA ND<0.5C-2 Effl 11/30/11 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 NA ND<0.5 ND<0.5 NA ND<0.5C-1 Infl 03/28/12 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 5.2 NA ND<0.5 ND<0.5 NA ND<0.5C-1 Effl 03/28/12 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 0.6 NA ND<0.5 ND<0.5 NA ND<0.5C-2 Effl 03/28/12 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 NA ND<0.5 ND<0.5 NA ND<0.5

539,963

491,950

585,690

NA

788,029








Chloro- methane

Totalizer (gallons)

C-1 Infl 08/22/12 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 3.8 NA ND<0.5 ND<0.5 NA ND<0.5C-1 Effl 08/22/12 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 NA ND<0.5 ND<0.5 NA 0.8C-2 Effl 08/22/12 ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<0.5 ND<0.5 NA ND<0.5 ND<0.5 NA ND<0.5VGES -- 5 1,000 700 10,000 20 40 -- -- -- -- 30 --PAL -- 0.5 500 350 5,000 10 20 -- -- -- -- 15 --

Notes:TAME - Tert-amyl-methyl-etherETBE - Ethyl tert-butyl ether

TBQ - Trace below quantitation limit indicated. VGES - Vermont Ground Water Enforcement StandardMTBE - Methyl tert-butyl ether PAL - Preventive Action Level

Shading indicates exceedance of VGES and/or PALTBA - Tert-butyl alcohol

ND- None detected at indicated detection limit.Results reported in micrograms per liter (µg/L).

TMB - trimethyl benzene

NA



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