Consulting Hydrogeologists Oh. 2 1 20@ Engineers Heindel and Noyes Environmental Scientists

ID. Box 64709 Burhg-ton, Vermont 05406-4709 802-658-0820

- - Fax 802-860-10 14

October 18, 2002

Mr. Chuck Schwer Sites Management Section Agency of Natural Resources 103 South Main Street, West Office Waterbury, VT 05671 -0404

-. Re: Eastman Residence

EP&S/Northfield, 183 Washington Street, Northfield, Vermont WMD Spill #2001-107

-

Dear Chuck:

I, - On August 12, 2002 Heindel & Noyes (H&N) conducted a sampling round at the referenced site to determine the course of future remediation. The results of this sampling event (see attachment) indicate petroleum contaminant levels remain above

- Vermont Groundwater Enforcement Standards (VGES) for 1,3,5 Trimethyl Benzene, 1,2,4 Trimethyl Benzene and Napthalene in monitoring well MW-A (see attached site map).

It is H&N's understanding that the Vermont Department of Environmental Conversation (VDEC) is interested in further remediation efforts at this site. To facilitate this process H&N has included a cost estimate for four months operation of a Vapor Extraction System (VES). This system would utilize bio-filters instead of carbon to reduce material and carbon disposal costs. H&N has effectively used this remediation option at other sites in Vermont with good results. Due to the limited scope of contamination and moderate historic volatile VES influent levels H&N believes this site an ideal candidate for bio-rernediation technology.

Once you have had a chance to review this letter, please call me at (802) 658-0820 or email me at kmurdickoq-city.com to discuss this matter further.

Sincerely,

dent Murdick Staff Scientist

cc: Steve Singer, EP&S Phyllis Eastman

EP&SNVASHINGTON STREET

SUMMARY OF COST ESTIMATE

ACTIVITY #I : Continued Operation of the SVE System for 6 Months $2,200.00

ACTIVITY #2: Continued Monitoring for Free Product (6 Months) $2,581.62

ACTIVITY #3: 2 Sampling Rounds $1,400.00

ACTIVITY #4: Site Cleanup $ 320.00

AC'TIVITY #5: Site Inspection and Site Update Report

TOTAL ESTIMATED COSTS

1 October 17. 2002 11

j Reporting SUBTOTAL: / $1q500.00 $1.500.00 1

11 STANDARD TERMS AND CONDITIONS

, . .

1. This is not a not-to-exceed cost estimate. Costs will not exceed the total specified herein by more than 20% without prior authorization of the client.

'TOTAL ESTIMATED - COSTS

2. This estimate is based on standard field conditions. Extreme weather conditions may result in increased costs.

..s

3. Meetings and phone consultations outside this scope of services wil l be billed on a time-and-materials basis.

-= = -- - - -- -___61.

4. Terms of Payment: Net 3 0 days, regardless of the outcome of the results of our services, or the permit processes. Interest of 1.5% per month may be charged on balances more than 6 0 days overdue. Signer agrees to pay interest and any reasonable attorney and court fees for collection of overdue bills.

5. These rates are valid through December 31, 2002. Hourly billing rates, equipment rental charges, etc. are subject to change at that time.

6 . In recognition of the relative risks and benefits of the project to both the Client and H&N, the risks have been allocated such that the Client agrees, to the fullest extent permitted by law, to limit the liability of H&N and his or her subconsultants to the Client and to all construction contractors and subcontractors on the project for any and all claims, losses, costs, damages of any nature whatsoever or claims expenses from any cause or causes, so that the total aggregate liability of H&N and his or her subconsultants t o all those named shall not exceed $7,197.62, or H&Nrs total fee for services rendered on this project, whichever is greater. Such claims and causes include, but are not limited to negligence, professional errors or omissions, strict liability, breach of contract or warranty.

I1 Jeffrey E. Noyes, Chief Hydrogeologist Date

Authorized Signature Date

4 =END YNE, i ~ c .

Heindel 6t Nsyes PO Box 64709, Bur;ington, \.IT 05106-4709 Attn: Kent Murdick

Laboratory Services

160 James Brown Drive Williston, Vermont 05495 (802) 879-4333

LABORATORY REPORT FAX 879-71 03

PROJECT: EPS~Washington St ORDER ID: 19 18 1 RECEIVE DATE: August 14,2002 REPORT DATE: August 22,2002

Enclosed pleasc find the results of the analyses performed for the samples referenced on the attached chain cf custody. Different groups of analyses may be reported under separate cover.

All samples were prepared and analyzed by requirements outlined in the referenced methods and within the specified holding times.

All instrunlentation was calibrated with the appropriate frequency and verified by the requirements outlined in the referenced methods.

Blank contamination was not observed at levels affecting the analytical results.

Analyticai method precision and accuracy was monitored by laboratory control standards which include matiix spike, duplicate and quality control analyses. These standards were determined to be within established laboratory method acceptance limits, unless othenvise noted.

Sclmple 198258 MIUS received at tlze laboratory biphasic, an attempt was made to analyze an aqueous sample aliquot.

Laboratory Director

Enclosures

I ' E N D YNE. I N C .

CLIENT: Heindel & Noyes PROJECT: EPSIWashington St REPORT DATE: August 22,2002

Laboratory Services J

160 James Brown Drive Williston, Vermont 05495 (802) 879-4333

LABORATORY REPORT FAX 879-71 03

ORDER ID: 19 1 8 1 DATE RECEIVED: August 14,2002 SAMPLER: NF ANALYST: 420

I Ref. Number: 198258 Site: MW-A Date Sampled: August 12,2002 Time: 3:10 PM I Parameter

MTBE Benzene Toluene Ethylbenzene Xylenes, Total 1,3,5 Trimethyl Benzene 1,2,4 Trimethyl Benzene Naphthalene UP'S Surrogate 1

Result

< 10.0 < 5.0 < 5.0 5.4

36.9 39.4 46.7 52.2 > 10. 94.%

uglL ug1L ug/L ug1L ug/L uglL ug/L ug/L

Method

SW 8021B SW 8021B SW 802 1B SW 8021B SW 802 1B SW 8021B SW 8021B SW 802 1B SW 8021B SW 8021B

Analvsis Date

8120102 8120102 8/20/02 8120/02 8120102 8/20/02 8120102 8120102 8120102 8120102

I Ref. Number: 198259 Site: Seep Date Sampled: August 12,2002 Time: 3:05 PM

Parameter

MTBE Benzene Toluene Ethylbenzene Xylenes, Total 1,3,5 Trimethyl Benzene 1,2,4 Trimethyl Benzene Naphthalene UP'S Surrogate 1

Page 2 of 2

Result

< 2.0 < 1.0 < 1.0 < 1.0 < 2.0 < 1.0 < 1.0 < 1.0

0. 101.%

Method

SW 8021B SW 8021B SW 8021B SW 8021B SW 802 1B SW 8021B SW 8021B SW 8021B SW 8021B SW 8021B

Analysis Date

8/20/02 8/20/02 8l20102 8/20/02 8120102 8/20/02 8120l02 8/20/02 8/20102 8l20102

t r f I I I t I I F r t t L I w u I I V L , I I V V . -a=--. -a V V Y I V Y * LLWVVa-

I 160 .lames Brown Drive Williston, Vermont 05495 (802) 879-4333 Special Reporting Instructions:

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(White, Yellow, Pink Copy - Laboratory I Goldenrod Copy - Client)

Project Name:

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&A Company: tf ~ f 3 Contact NamdPhone i k ~ ~ fi+ mur 6 5 ~ ~ ~ ~

Endyne Order ID:

(Lab Use Only) 1 1 / 8 1

Billing Address:

H&+ Sampler Name: N , (&e- Phone ik 5 & G ~ U

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Ref # (Lab Use Only)

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Sample Identification

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Matrix

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. Sample Containers

No. Type/Size

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Field Results/Wemarks Analysis Required

14

S a n l ~ l c Preservatioll

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