HEI HOFFMAN ENGINEERING INC.

640 Ten Rod Road, North Kingstown, RI 02852 Tele: 401-294-9032/Fax: 294-1288

Date: December 1, 2008 Job No. TO: Mr. Gerold Noyes, P.E. VTDEC, Site Management Section RE: Former Rutland Towing, Rutland, VT CC: Bob Lerner, Rite Aid Corporation We are sending you: Copies Date No. Description

1 12/1/08 1 Annual Groundwater Sampling Round for Former Rutland Towing

1 12/1/08 2 Emailed version of Annual Groundwater Sampling Round for Former Rutland Towing

Remarks: If you have any questions, please call our office.

Signed:________________________________ Robert L. Hoffman, P.E. President

ANNUAL GROUNDWATER SAMPLING ROUND

FOR FORMER RUTLAND TOWING

10-12 MAIN STREET RUTLAND, VERMONT

Prepared By:

Hoffman Engineering, Inc. North Kingstown, Rhode Island

(401) 294-9032; 294-1288

Prepared For: RITE AID CORPORATION

________________________ Robert L. Hoffman, P.E.

President VT-PE # 7929

December 2008

TABLE OF CONTENTS

1.0 SITE DESCRIPTION.........................................................................................................................1

2.0 BACKGROIUND...............................................................................................................................1

3.0 SCOPE OF WORK ...........................................................................................................................2

4.0 GROUNDWATER SAMPLING AND ANALYSIS.............................................................................2

6.0 GROUNDWATER GAUGING & ANALYTICAL RESULTS .............................................................3

7.0 RECOMMENDATIONS.....................................................................................................................4

8.0 LIMITATIONS ...................................................................................................................................4 TABLE Groundwater Analytical Summary FIGURES Site Location Plan Monitoring Well Location Plan

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Hoffman Engineering Inc., 640 Ten Rod Road, North Kingstown, RI 02852

Telephone: 401-294-9032/Fax: 401-294-1288

1.0 SITE DESCRIPTION

The subject site, located at 10-12 Main Street in Rutland, Vermont, was most recently utilized as Rutland Towing and the local Avis Rent-A-Car franchise. A Site Locus Map is attached as Figure 1. UST closure activities commenced the week of December 7, 2004, following approval of the request for closure from the Vermont Department of Environmental Conservation (VTDEC) and were completed on December 15, 2004. UST excavation and cleaning activities were performed by Star Construction of Castleton, Vermont and witnessed by an HEI representative. The tanks, which were previously taken out of service circa September 2003, had previously been pumped down and the dispenser hose removed. Petroleum contamination was found in association with UST#2 and #3, and the gasoline pump island. UST #2 was found to be in fair condition at the time of excavation, with no evidence of holes. Soil discoloration and a slight sheen on the groundwater was observed in the tank pit. The UST #3 excavation was also noticeably impacted by a petroleum release, though to a lesser extent than the UST #2 excavation. The pump island excavation had petroleum contamination in the soils. In order to assess the extent of impact from the identified release areas and collect undisturbed soil and groundwater samples, the installation of borings equipped with monitoring wells was completed.

2.0 BACKGROIUND

In May 2005, HEI installed 8 borings equipped with monitoring wells as follows: (See Figure 2)

HEI-1 Located upgradient from release

HEI-2 Located within the Tank 2 release HEI-3 Downgradient of gas USTs (location was moved to the north from

proposed location because of concern of hitting the sewer line)

HEI-4 Downgradient of gas USTs

HEI-5 Downgradient of gas USTs and pump island

HEI-6 Downgradient of pump island

HEI-7 Release area noted beneath west pump island

HEI-8 Beneath east pump island Groundwater sampling from these monitoring wells showed significantly elevated weathered gasoline components which exceeded Vermont Groundwater Quality Standards, although no free product was observed. Based on the results it appears that the release originated from both the tanks and dispensing system, including previous generations of tanks.

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Hoffman Engineering Inc., 640 Ten Rod Road, North Kingstown, RI 02852

Telephone: 401-294-9032/Fax: 401-294-1288

3.0 SCOPE OF WORK

The following tasks were completed as part of this groundwater sampling round. Depths to groundwater measurements were collected and each monitoring well gauged

for the presence of free product. Groundwater samples were collected from the monitoring wells and analyzed for EPA

Method 8021 Volatile Organic Compounds. A duplicate sample was collected from HEI-7 during this monitoring round.

Monitoring well HEI-8 was not sampled during this sampling round because it could not be found. HEI believes the well may have been destroyed during snow plow activities.

4.0 GROUNDWATER SAMPLING AND ANALYSIS

Sampling Technique

Groundwater samples were collected from HEI-1 through HEI-7 on November 6, 2008. Groundwater sampling was performed using specially precleaned dedicated polyethylene bailers. To avoid cross contamination between wells, a separate bailer was dedicated to each well and the groundwater level indicator carefully decontaminated between measurements.

Prior to drawing the samples, groundwater levels were recorded relative to rim elevation and monitoring wells were gauged for the presence of free phase product. The monitoring wells were then bailed to remove three times the standing volume of water prior to collection of the samples into laboratory prepared vials. The samples were delivered to RI Analytical Laboratories, Inc. (RIAL) of Warwick, Rhode Island under chain-of-custody procedures.

All samples were packed in an ice chest and transported under chain-of-custody to the laboratory for analyses.

Groundwater elevations HEI used standard differential leveling survey techniques to determine the relative elevation of the tops of each of the monitoring wells utilizing an assumed benchmark. The depth to groundwater in each of the monitoring wells was then recorded utilizing an electronic water level meter. Groundwater readings were collected from seven monitoring wells on November 6, 2008. The groundwater depths, summarized below ranged from 3-5 feet below grade. This information was then utilized to determine the groundwater table elevation at each location.

December 1, 2008 S:\A JOB Files\A JOB FILES\PJC - RITE AID\VT\RUTLAND\SEMI ANNUAL GROUNDWATER REPORTING\Annual Reporting November 2008\ANNUAL GROUNDWATER MONITORING REPORT NOVEMBER 2008.doc

Hoffman Engineering Inc., 640 Ten Rod Road, North Kingstown, RI 02852

Telephone: 401-294-9032/Fax: 401-294-1288

Page 3

Groundwater Elevation Data

November 15, 2006 Well ID Top of Curb Box (feet) GWT Elevation (feet) Depth to GWT (feet) HEI-1 100.00 4.92 95.08 HEI-2 99.08 5.02 94.06 HEI-3 98.20 4.38 93.82 HEI-4 98.24 5.11 93.13 HEI-5 98.11 4.79 93.32 HEI-6 97.86 4.34 93.52 HEI-7 98.10 3.90 94.20

• Water in the catch basin is approximately 4 feet below grade.

Inferred Direction Of Groundwater Flow

Based on the aforementioned groundwater elevations, it appears, that groundwater flows in a westerly direction, but appears to be influenced by the presence of the peastone backfill in the former tank grave, the sewer line, and potentially utilities within North Main Street. Additional gauging is necessary to confirm these readings.

6.0 GROUNDWATER GAUGING & ANALYTICAL RESULTS

Each of the seven groundwater monitoring wells were sampled and analyzed for the presence of EPA Method 8021. No evidence of free product was found in any of the monitoring wells when the wells were gauged prior to sampling.

Groundwater Analytical Results

Groundwater analytical results can be found in Table 1. A copy of the Certificate of Analysis is attached. In general, the results suggest the following:

Significantly elevated levels of weathered gasoline compounds were detected in all

monitoring wells except HEI-1 (upgradient),HEI-2 within the eastern portion of the former tanks grave, and HEI-3 (significantly decreased levels since 2005).

The compounds include some benzene and MTBE indicative of a more recent release,

however the prevalence of the more weathered compounds are indicative of another release.

Comparison to Standards

Based on Vermont Groundwater Quality Standards, Benzene, Ethylbenzene and MTBE significantly exceed Vermont Enforcement Standards.

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Hoffman Engineering Inc., 640 Ten Rod Road, North Kingstown, RI 02852

Telephone: 401-294-9032/Fax: 401-294-1288

omparison to Previous ResultsC

d

operty. HEI-5 continues to show a slight to

moderate increase in contaminant levels.

7.0 RECOMMENDATIONS

d from the work conducted and the limitations in Section 8.0, EI recommends the following:

ring wells for EPA Method 8021B should be conducted in November 2009.

pedite the natural attenuation process may be warranted in the area of HEI-5.

8.0 LIMITATIONS

were not contacted regarding their compliance with federal, state r local laws and regulations.

essarily be construed as accurate representations of subsurface conditions n the entire Site.

l

or

utilizing generally accepted engineering practices. No warranty expressed or implied is made.

The analytical results from the May and November, 2005 and November 2006 and 2007 aswell as the current monitoring round are provided in Table 1. A significant downward trenis apparent in HEI-3, HEI-4, HEI-6, HEI-7 and HEI-8 (not sampled this round) which arelocated at the downgradient edge of the pr

Based on the information obtaineH

Annual sampling of the 8 monito

The addition of an oxidizer to ex

The work reported herein was conducted to assess the physical characteristics of the referenced Site with respect to the release of hazardous material. Unless otherwise noted, past and present owners of the Siteo The conclusions summarized herein were based on the observations stated in this report, the review of a limited State and Municipal record search conducted as part of this study. These findings cannot neco Information gathered for this report is considered accurate up until the time performed. HEI cannot and does not represent that no hazardous waste, oil and asbestos exist at the Site. This work was not based on scientific certainty, but on observations and the limited work performed. HEI has relied on the accuracy of an outside laboratory for analytical results. Should additionaor future work provide differing conditions, sections of this report and conclusions may require modification. This report was prepared for the exclusive use of Rite Aid Corporation, solely fthe use in an environmental evaluation of the Site. Any reliance, use, or distribution of this report without the expressed written consent of Hoffman Engineering, Inc. is prohibited. This report was prepared

MW ID/ HEI-1 HEI - 1 HEI - 1 HEI - 1 HEI - 1 HEI - 1 HEI-2 HEI - 2 HEI - 2 HEI - 2D HEI-2 HEI - 2 HEI - 2 VT GES VT PAL5/26/05 11/3/05 5/23/06 11/15/06 11/12/07 11/6/08 5/26/05 11/3/05 5/23/06 5/23/06 11/15/06 11/12/07 11/6/08

Constituent ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/lBenzene <1 <1 <1 <1 <1 <1 <1 <1 1 1 4 <1 2 5 0.5n-Butylbenzene <1 NT NT NT NT NT <1 NT NT NT NT NT NT NS NSsec-Butylbenzene 1 NT NT NT NT NT <1 NT NT NT NT NT NT NS NSEthylbenzene <1 <1 <1 <1 <1 <1 <1 2 3 3 5 <1 2 700 350Isopropylbenzene <1 NT NT NT NT NT <1 NT NT NT NT NT NT NS NSp-Ispropyltoluene <1 NT NT NT NT NT <1 NT NT NT NT NT NT NS NSNaphthalene <1 NT NT NT NT NT <1 NT NT NT NT NT NT 20 10n-Propylbenzene <1 NT NT NT NT NT <1 NT NT NT NT NT NT NS NS1,3,5-Trimethylbenzene <1 NT NT NT NT NT <1 NT NT NT NT NT NT 4 21,2,4-Trimethylbenzene <1 NT NT NT NT NT <1 NT NT NT NT NT NT 5 2.5Toluene <1 <1 <1 <1 <1 <1 4 <1 <1 <1 <1 <1 <1 1000 500Total Xylene <1 <1 <1 <1 <1 <1 <1 2 4 5 19 <1 16 10000 5000MTBE <2 <1 <1 <1 <1 <2 <2 11 9 10 28 4 <2 40 208100 TPH 1300 NT NT NT NT NT 590 NT NT NT NT NT NT NS NS

MW ID/ HEI-3 HEI - 3 HEI - 3 HEI-3 HEI - 3 HEI - 3 HEI-4 HEI - 4 HEI - 4 HEI-4 HEI-4 HEI-4 VT GES VT PAL5/26/05 11/3/05 5/23/06 11/15/06 11/12/07 11/6/08 5/26/05 11/3005 5/23/06 11/15/06 11/12/07 11/6/08

Constituent ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/lBenzene 100 <10 <1 5 8 <1 370 120 170 210 180 120 5 0.5n-Butylbenzene 23 NT NT NT NT NT <100 NT NT NT NT NT NS NSsec-Butylbenzene 3 NT NT NT NT NT <100 NT NT NT NT NT NS NSEthylbenzene 930 62 22 61 480 5 2700 1200 570 820 570 440 700 350Isopropylbenzene 53 NT NT NT NT NT 170 NT NT NT NT NT NS NSp-Ispropyltoluene 2 NT NT NT NT NT <100 NT NT NT NT NT NS NSNaphthalene 50 NT NT NT NT NT 230 NT NT NT NT NT 20 10n-Propylbenzene 98 NT NT NT NT NT 360 NT NT NT NT NT NS NS1,3,5-Trimethylbenzene 150 NT NT NT NT NT 660 NT NT NT NT NT 4 21,2,4-Trimethylbenzene 480 NT NT NT NT NT 2200 NT NT NT NT NT 5 2.5Toluene 370 <10 <1 4 29 <1 3000 340 <100 <100 54 36 1000 500Total Xylene 4600 370 25 230 1640 11 13200 5800 1720 3580 1910 1138 10000 5000MTBE 2200 15 2 51 23 <2 600 370 1200 940 330 <2 40 208100 TPH 5300 NT NT NT NT NT 16000 NT NT NT NT NT NS NSVT GES = Vermont Groundwater Enforcement StandardVT PAL = Vermont Preventative Action LimitNS = no standard exceeds VT GES standardNT = not testedHEI - 2D = Duplicate Sample

TABLE 1GROUNDWATER ANALYTICAL SUMMARY

10-12 MAIN STREETRUTLAND, VERMONT

Page 1 of 3

MW ID/ HEI-5 HEI - 5 HEI - 5 HEI-5 HEI-5 HEI-5 HEI-6 HEI - 6 HEI - 6 HEI-6 HEI-6 HEI-6 VT GES VT PAL5/26/05 11/3/05 5/23/06 11/15/06 11/12/07 11/06/08 5/26/05 11/3/05 5/23/06 11/15/06 11/12/07 11/06/08

Constituent ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/lBenzene 1300 1600 1600 1600 1200 1200 2500 <100 170 230 100 14 5 0.5n-Butylbenzene <100 NT NT NT NT NT <100 NT NT NT NT NT NS NSsec-Butylbenzene <100 NT NT NT NT NT <100 NT NT NT NT NT NS NSEthylbenzene 1100 1500 2100 1700 2400 1400 2400 380 640 1000 460 140 700 350Isopropylbenzene <100 NT NT NT NT NT 140 NT NT NT NT NT NS NSp-Ispropyltoluene <100 NT NT NT NT NT <100 NT NT NT NT NT NS NSNaphthalene <100 NT NT NT NT NT 660 NT NT NT NT NT 20 10n-Propylbenzene <100 NT NT NT NT NT 270 NT NT NT NT NT NS NS1,3,5-Trimethylbenzene 110 NT NT NT NT NT 620 NT NT NT NT NT 4 21,2,4-Trimethylbenzene 410 NT NT NT NT NT 2200 NT NT NT NT NT 5 2.5Toluene 3100 1200 2800 730 160 120 7400 490 1600 1400 200 18 1000 500Total Xylene 4900 4240 9600 5600 11000 4270 11400 2600 4700 6400 4100 750 10000 5000MTBE 690 660 1100 1300 820 860 220 <100 <100 <100 <100 <2 40 208100 TPH 8000 NT NT NT NT NT 18000 NT NT NT NT NT NS NSVT GES = Vermont Groundwater Enforcement StandardVT PAL = Vermont Preventative Action LimitNS = no standard exceeds VT GES standardNT = not testedHEI - 2D = Duplicate Sample

TABLE 1GROUNDWATER ANALYTICAL SUMMARY

10-12 MAIN STREETRUTLAND, VERMONT

Page 2 of 3

MW ID/ HEI-7 HEI - 7 HEI - 7 HEI-7 HEI-7 HEI-7 HEI-7D HEI-7D HEI-8 HEI - 8 HEI- 8 HEI-8 VT GES VT PAL5/26/05 11/3/05 5/23/06 11/15/06 11/12/07 11/06/08 11/15/06 11/12/07 5/26/05 11/3/05 5/23/06 11/15/06

Constituent ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/lBenzene <10 79 35 120 <10 10 130 <10 210 <100 170 170 5 0.5n-Butylbenzene 34 NT NT NT NT NT NT NT <100 NT NT NT NS NSsec-Butylbenzene <10 NT NT NT NT NT NT NT <100 NT NT NT NS NSEthylbenzene 270 790 540 460 71 69 490 71 1500 340 770 550 700 350Isopropylbenzene 36 NT NT NT NT NT NT NT 110 NT NT NT NS NSp-Ispropyltoluene 22 NT NT NT NT NT NT NT <100 NT NT NT NS NSNaphthalene 85 NT NT NT NT NT NT NT 360 NT NT NT 20 10n-Propylbenzene 93 NT NT NT NT NT NT NT 250 NT NT NT NS NS1,3,5-Trimethylbenzene 280 NT NT NT NT NT NT NT 560 NT NT NT 4 21,2,4-Trimethylbenzene 990 NT NT NT NT NT NT NT 2500 NT NT NT 5 2.5Toluene 320 330 770 520 51 72 620 64 1300 210 1300 840 1000 500Total Xylene 1960 5000 3200 1930 730 1620 2100 730 9400 2130 4280 2640 10000 5000MTBE <20 <10 <10 220 <10 <20 210 <10 1200 190 240 160 40 208100 TPH 14000 NT NT NT NT NT NT NT 17000 NT NT NT NS NS

VT GES = Vermont Groundwater Enforcement StandardVT PAL = Vermont Preventative Action LimitNS = no standard exceeds VT GES standardNT = not testedHEI - 7D = Duplicate Sample

GROUNDWATER ANALYTICAL SUMMARY10-12 MAIN STREET

RUTLAND, VERMONT

TABLE 1

Page 3 of 3

Annual Groundwater Monitoring Report

for Rite Aid Corporation

SITE LOCUS MAP

Former Rutland Coastal Towing 10-12 Main Street Rutland, Vermont

Map by: LandVoyage USGS Topographic Map, Rutland, VT 1/1/1988 FIGURE 1

NHOFFMAN ENGINEERING, INC. 640 Ten Rod Rd. North Kingstown, RI 02852 401-294-9032/Fax 294-1288

HEI

SITE

Serv

ice

Bay

s

Office

Monitoring Well Locations for

Rite Aid Corporation

Former Rutland Coastal Towing

10-12 Main Street Rutland, Vermont

Plan drawn by Alan G. Olson, Inc. 107 Bellevue Ave., Rutland, Vermont edited by LL of HEI Scale 1”=25’

Existing Monitoring Wells New Monitoring Wells

FIGURE 2

HOFFMAN ENGINEERING, INC. 640 Ten Rod Rd. North Kingstown, RI 02852 (401) 294-9032 phone (401) 294-1288 fax

HEI

N

* The location of well #3 was moved over concern of hitting the sewer line

sewerLegend of Numbering System

1 Upgradient location 2 In area of tank 2 pump release 3 Downgradient of gas USTs* 4 Downgradient of gas USTs 5 Downgradient of gas USTs and pump

island 6 Downgradient of pump island 7 Release area noted beneath west pump

island 8 Beneath east pump island 9 Existing 4” monitoring wells to be

grouted at completion of assessment

9

9

8 7 6

5

4

3

2 1