report environmental soil sampling & … . environmental soil sampling & testing . ......

REPORT ENVIRONMENTAL SOIL SAMPLING & TESTING

PROPOSED ARMSTRONG COURT RESIDENTIAL DEVELOPMENT GREENWICH, FAIRFIELD COUNTY, CONNECTICUT

GREENWICH HOUSING AUTHORITY

November 21, 2014

Prepared By: Melick-Tully and Associates, P.C.

117 Canal Road South Bound Brook, NJ 08880

Tel: 732-356-3400 Fax: 732-356-9054

MTA Project No.: 9242-002*1D

MELICK-TULLY AND ASSOCIATES, P.C. GEOTECHNICAL ENGINEERS AND ENVIRONMENTAL CONSULTANTS

Principals: RAYMOND J TULLY, PE.

EUGENE M. GALLAGHER JR., PE. ROBERT E. SCHWANKERT, PE

TODD E. HOROWITZ, PE. MARK R. DENNO, PE.

CHRISTOPHER P TANSEY, PE

Senior Associates:

November 21,2014 RICHARD D. LEV, CPG

JAMES H. BEATIIE, PE

Greenwich Housing Authority 249 Milbank A venue Greenwich, Connecticut 06830

Attention:

Introduction

Mr. Tony Johnson

Re: Environmental Soil Sampling and Testing Proposed Armstrong Court Residential Development Greenwich, Fairfield County, Connecticut Greenwich Housing Authority

This report presents the results of environmental sampling and testing of in-place soils in

in the parking area for the proposed Armstrong Court site development to be constructed in

Greenwich, Fairfield County, Connecticut for the Greenwich Housing Authority (GHA). The

portions of the site evaluated as part of this investigation are located adjacent to the north and

south sides of Armstrong Court, to the west of Booth Place, as shown on the Site Location Map,

Plate 1.

Proposed Construction

The Armstrong Court development will include the construction of new "Family" units,

identified as three-unit townhouse buildings which will be two stories in height. Several of the

structures would be underlain by crawl spaces, while some ofthe buildings would contain walk-out

basements. In addition, a senior building with outside dimensions of about 60 feet by 185 feet

would be constructed at the Armstrong Court development, and consist of a multi-level structure

underlain by a crawl space.

Please Reply to: 0 NJ OFFICE: 117 Canal Road, South Bound Brook, N,J 08880 I Phone: (732) 356-3400 Fax: (732) 356-9054 0 NY OFFICE: 324 Route 208, Monroe. NY 10950 I Phone: (845) 783-9190 Fax: (845) 783-5060

Greenwich Housing Authority November 21, 2014

Purpose and Scope of Work

The purpose of our services was to perform limited sampling of the in-place soils in the

proposed parking area for initial characterization as requested by Greenwich Housing Authority.

As requested, one discreet soil sample was collected from each of the four test pits

advanced in the proposed parking area at the Armstrong Court site for laboratory testing. The

materials encountered in the test pits were screened in the field for volatile organic vapors using

a calibrated photoionization detector (PID), placed into laboratory prepared glassware,

immediately stored on ice and transported to a Connecticut DPH certified laboratory for Target

Analyte List/Target Compound List (TAL/TCL+30) testing. The laboratory testing was

performed on a standard one-week faxed deliverables. The results of the laboratory testing were

compared to the current Connecticut Department of Energy and Environmental Protection

(CDEEP) standards.

As agreed, our scope of work was to be an initial screening on a limited portion of the

property. If a higher degree of confidence is desired, a Phase I environmental site assessment of

the property is recommended. The Phase I would be a preliminary evaluation of the subject

property in general conformance with the ASTM E 1527-13 consensus document, resulting in a

professional opinion regarding the presence of recognized environmental conditions in

connection with the property. If recognized environmental conditions are discovered during

Phase I, a decision will be required whether to proceed to a Phase II assessment to further

evaluate the recognized environmental conditions. Additional investigation may involve soil

borings; soil/ground water/material sampling; and laboratory analytical testing; ground water

monitoring; geophysical measurements; or other ancillary studies. The conclusions and findings

of this report are subject to the limitations attached in Appendix I.

Greenwich Housing Authority November 21, 2014

Discussion

On October 24, 2014, a representative of Melick-Tully and Associates, P.C. (MTA) was

present at the property to conduct the soil sampling. Four test pits were advanced at widely

spaced locations chosen by GHA within the proposed parking area, which extended from

approximately ten to ten and one half feet below existing ground surface. The approximate test

pit locations are shown on Plate 2. Our visual observations indicated that the encountered

materials consisted of 12 to 15 inches of topsoil over approximately seven feet of silty sand or

clayey silt fill. Underlying the fill material were natural sands, clayey silts and organic silt/peat.

The materials encountered in the test pits were screened for volatile organic vapors using a

calibrated photoionization detector (PID). No elevated PID readings, staining or odors were

detected in the materials encountered in the test pits.

As no field indicators were observed, discrete samples were collected for testing from

each test pit based on professional judgment. The soil samples were placed into laboratory-

prepared glassware, immediately stored on ice, transported under chain-of-custody to Integrated

Analytical Laboratories (IAL), (Connecticut DPH certification# PH-0699) and analyzed for EPA

Target Analyte List/Target Compound List (TAL/TCL +30) parameters.

The results of the laboratory testing did not report any compounds at concentrations

above the current CDEEP Direct Exposure for Soil Residential Criteria. A summary of the

laboratory test results is presented on Table 1. The IAL laboratory summary report and chain-of-

custody form are attached in Appendix II. The complete laboratory report will be forwarded

upon receipt by our office.

ajohnson

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ajohnson

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Greenwich Housing Authority November 21,2014

The following Plates and Appendices are attached and complete this report:

Plate 1 - Site Location Map Plate 2 - Plot Plan Plates 3A through 3D- Logs of Test Pits Table 1 - Summary of Laboratory Testing Results Appendix I - Limitations Appendix II- IAL Laboratory Summary and Chain-of-Custody Form

Very truly yours,

MELIC - X and ASSOCIATES, P.C.

KAH:EMG/kh 9242-002* 1D (2 copies submitted)

Ke Project Manager

Eugene M. Gallagher, Jr., P.E. Vice President

JOB NO.

Aerial Photo courtesy of Google Earth Pro

MEUCK-TULLY AND ASSOCIATES, P.C. Geotechnical EnglnHI"'

1: Environmental Con~ultanta 117 Canal Road

South Bound Broolc. New Jereey 08880 {732) 356-~

FILE NO. 92~2-002*10 26~96

COURT RESIDENTIAL DEVELOPM GREENWICH, CONNECTICUT

GREENWICH HOUSING AUTHORITY

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NOT ENCOUNTERED

1. This drawing Is part of Melick-Tully and Associates, P .C. Report No. 9242-002*1 D and should be read together with the report for complete evaluation.

2. General layout was obtained from a drawing prepared by Rocco V. D'Andrea, Surveyor, entitled "Development Plan-2 OF 2" dated 9/15/14, scale 1"=30'.

PLOT PLAN ARMSTRONG COURT RESIDENTIAL DEVELOPMENT

GREENWICH, CONNECTICUT GREENWICH HOUSING AUTHORITY

JOB NO.

DR. BY VJD

MELICK-TULLY AND ASSOCIATES, P.C. Geotechnical Englneen

&: Environmental Consultants 117 Canal Road

South Bound Brook, New Jeney 08880 {732) 356-3400

FILE NO. 9242-002*1 D 26496

CHK. BY JHB

DATE 11-7-14

PLATE 2

TABLE 1

Summary of Laboratory Testing Results

LOG OF TEST PIT

COMPLETION DATE: 10/24/14 JOB NUMBER: 9242-002*1 D

TEST PIT NO. TP-1 SURFACE ELEVATION: +40ft.(±) WATER LEVEL: 7'

READING DATE: 10/24/14

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DESCRIPTION

12" Topsoil

Fill: Light brown fine to coarse sand, some to and slit, trace fine gravel (moist)(medium dense)

Black organic clayey silt, and peat (wet)(soft)

Test pit completed@ 10'-5"

Moderate groundwater seepage

encountered @ 7'

SOIL DESCRIPTION MODIFIERS: 1. SAMPLE AT AVERAGE SAMPLING DEPTH TRACE 0-10%

LITTLE 1 0 - 20% SOME 20-35%

TypisUDate· JHB/pm 11/14 AND OVER 35%

Sheet: 1 of 1 PLATE: 3A

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SURFACE ELEVATION: +38ft.(±) WATER LEVEL: 7' READING DATE: 10/24/14

DESCRIPTION

12" Topsoil

Fill: Light brown fine to coarse sand, some silt, trace fine gravel (moist)(medium dense)

Black fine to coarse sand, some silt, little fine to coarse gravel (wet)(medium dense)

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Slight groundwater seepage

encountered @ 7'

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MELICK-TULLYANDASSOCIATES, P.C. Geotechnical Engineers and Environmental Consultants

LOG OF TEST PIT


TEST PIT NO. TP-3 SURFACE ELEVATION: +39.5 ft.(±) WATER LEVEL: 10'-6"


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Fill: Dark gray fine to medium sand, and silt, trace fine gravel (moist)(loose)

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Gray clayey silt, and fine to medium sand (wet)( stiff)

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encountered @ 1 0'-6"

1. SAMPLE AT AVERAGE SAMPLING DEPTH SOIL DESCRIPTION MODIFIERS TRACE 0-10% LITTLE 1 0 - 20% SOME 20-35%

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LOG OF TEST PIT

COMPLETION DATE: 10/24/14 JOB NUMBER: 9242-002"'1 D

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SOIL DESCRIPTION MODIFIERS: TRACE 0-10% UTILE 10 - 20% SOME 20-35% AND OVER35%

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PLATE: 3D

Plates 3A through 3D

Logs of Test Pits

Table 1 9242-002*1D Page 1 of 2

TABLE 1

SUMMARY OF LABORATORY TESTING RESULTS - SOIL SAMPLING Town of Greenwich, Fairfield County, Connecticut

Greenwich Housing Authority

Sample Number: TP-1 TP-2 TP-3 TP-4 Sample Depth (ft.): 3.0 4.0 4.0 4.0 Sample Matrix Soil Soil Soil Soil Sample Date: 10/24/2014 10/24/2014 10/24/2014 10/24/2014 Laboratory ID No: 10367-001 10367-002 10368-003 10367-004 ANALYTE Concentration in Parts Per Million (ppm) “A” “B” “C” Volatile Organic Compounds (VOC): Carbon disulfide ND (0.000731) ND (0.000684) ND (0.00134) 0.00222 NS NS NS Total VOC’s ND ND ND 0.00222 CS CS CS VOC-TIC’s ND ND ND ND NS NS NS Total VOC’s & TIC’s ND ND ND 0.00222 NS NS NS Semivolatiles- PAH’s: Naphthalene ND (0.022) ND (0.21) ND (0.041) 0.111 1,000 5.6 56 2-Methylnaphthalene ND (0.027) ND (0.26) ND (0.050) 0.124 NS NS NS Acenaphthylene ND (0.022) ND (0.21) ND (0.041) 0.049 1,000 8.4 84 Fluorene ND (0.022) ND (0.21) ND (0.041) 0.067 1,000 5.6 56 Phenanthrene 0.067 0.171 ND (0.041) 0.461 1,000 4 40 Anthracene ND (0.022) 0.044 ND (0.041) 0.114 1,000 40 400 Carbazole ND (0.022) ND (0.21) ND (0.041) 0.050 NS NS NS Fluoranthene 0.120 0.354 ND (0.041) 0.903 1,000 5.6 56 Pyrene 0.108 0.284 ND (0.041) 0.768 1,000 4 40 Benzo[a]anthracene 0.065 0.165 ND (0.041) 0.549 1 1 1 Chrysene 0.077 0.194 ND (0.041) 0.615 NS NS NS Bis(2-ethylhextyl)phthalate 0.060 0.104 ND (0.041) ND (0.036) 44 1 11 Benzo[b]fluoranthene 0.070 0.185 ND (0.041) 0.659 1 1 1 Benzo[k]fluoranthene 0.060 0.149 ND (0.041) 0.309 8.4 1 1 Benzo[a]pyrene 0.074 0.183 ND (0.041) 0.501 1 1 1 Indeno[1,2,3-cd]pyrene 0.051 0.134 ND (0.041) 0.369 NS NS NS Dibenz[a,h]anthracene ND (0.037) 0.065 ND (0.041) 0.126 NS NS NS Benzo[g,h,i]perylene 0.056 0.148 ND (0.041) 0.394 NS NS NS Total BNA’s 0.808 2.18 ND 6.17 CS CS CS Total TIC’s ND 1.25 7.98 18.1 NS NS NS Total BNA’s & TIC’s 0.808 3.43 7.98 24.3 NS NS NS PCB’s: 0.00217 0.015 ND (0.0014) ND (0.00124) 1 0.0005* 0.005*

Notes: "A" Connecticut Direct Exposure Criteria for Soil Residential Criteria "B" Connecticut Pollutant Mobility Criteria for Soil (GA & GAA Ground Water Classification) “C” Connecticut Pollutant Mobility Criteria for Soil (GB Ground Water Classification) * Mobility Criteria by TCLP or by SPLP ND Not detected (laboratory method detection limit in parenthesis) NS No Standard established CS Compound Specific Bold Concentration above Connecticut Direct Exposure Criteria for Soil Residential Criteria

Italics Concentration above Connecticut State Agencies Pollutant Mobility Criteria for Soil

Table 3 9249-002*1D Page 2 of 2

TABLE 1

SUMMARY OF LABORATORY TESTING RESULTS - SOIL SAMPLING Town of Greenwich, Fairfield County, Connecticut

Greenwich Housing Authority

Sample Number: TP-1 TP-2 TP-3 TP-4 Sample Depth (ft.): 3.0 4.0 4.0 4.0 Sample Matrix Soil Soil Soil Soil Sample Date: 10/24/2014 10/24/2014 10/24/2014 10/24/2014 Laboratory ID No: 10367-001 10367-002 10368-003 10367-004 ANALYTE Concentration in Parts Per Million (ppm) “A” “B” “C” Pesticides: 4,4’-DDE ND (0.000908) 0.00578 ND (0.000349) ND (0.00155) NS NS NS 4,4’-DDD ND (0.000908) 0.00522 ND (0.000349) 0.035 NS NS NS 4,4’-DDT 0.00128 0.029 ND (0.000349) ND (0.00155) NS NS NS Chlordane 0.00103 0.00731 ND (0.000349) ND (0.00155) NS 0.066 0.066 Metals: Aluminum 16,500 14,600 15,000 23,200 NS NS NS Antimony ND (0.298) ND (0.275) ND (0.561) ND (0.501) 27 0.006* 0.06* Arsenic 1.12 3.62 3.27 9.16 10 0.05* 0.5* Barium 140 196 377 328 4,700 1* 10.0* Beryllium 1.30 0.720 1.28 1.33 2 0.004* 0.04* Cadmium ND (0.149) 0.156 0.570 1.00 34 0.005* 0.05* Calcium 3,730 5,230 2,840 3,410 NS NS NS Chromium 280 70.8 39.1 61.9 NS 0.05* 0.5* Cobalt 14.6 12.0 5.36 13.6 NS NS NS Copper 10.4 29.0 32.5 48.5 2,500 1.3* 13* Iron 20,400 22,500 9,100 27,500 NS NS NS Lead 16.0 39.9 10.0 218 500 0.015* 0.15* Magnesium 20,200 10,100 2,620 6,600 NS NS NS Manganese 424 400 113 330 NS NS NS Mercury ND (0.022) 0.031 0.085 0.530 20 0.002* 0.02* Nickel 177 34.9 24.7 32.6 1,400 0.1* 1.0* Potassium 4,440 6,270 586 1,720 NS NS NS Selenium ND (0.596) 1.55 7.15 3.48 340 0.05* 0.5* Silver ND (0.149) ND (0.138) ND (0.280) 0.258 340 0.036* 0.36* Sodium 93.9 103 123 180 NS NS NS Thallium 0.391 0.655 0.305 0.562 5.4 0.005* 0.05* Vanadium 27.1 48.1 28.8 53.5 470 0.05* 0.50* Zinc 48.8 73.3 45.2 554 20,000 5* 50* Total Cyanide: ND (0.447) ND (0.442) ND (0.839) ND (0.743) 1,400 0.2* 2.0*

Notes: "A" Connecticut Direct Exposure Criteria for Soil Residential Criteria "B" Connecticut Pollutant Mobility Criteria for Soil (GA & GAA Ground Water Classification) “C” Connecticut Pollutant Mobility Criteria for Soil (GB Ground Water Classification) * Mobility Criteria By TCLP or by SPLP ND Not detected (laboratory method detection limit in parenthesis) NS No Standard established CS Compound Specific Bold Concentration above Connecticut Direct Exposure Criteria for Soil Residential Criteria

Italics Concentration above Connecticut State Agencies Pollutant Mobility Criteria for Soil

APPENDIX I

Limitations

LIMITATIONS

FOR ENVIRONMENTAL CONSULTING SERVICES A. NO RELIANCE BY THIRD PARTIES This report and any other documents or materials prepared by Melick-Tully and Associates, P.C. (MTA) in connection with the environmental consulting services performed pursuant to MTA's contract are for the benefit and use of MTA's client only, and are not intended to be nor shall be deemed to be for the benefit of any third party, including without limitation, an owner or lessee of the property. B. LIMITATIONS ON WORK PRODUCT All work product and reports provided by MTA in connection with the performance of environmental consulting services are subject to the following limitations: 1) The observations described in this Report were made under the conditions stated

therein. The conclusions presented in the Report were based solely upon the services described therein, and not on scientific tasks or procedures beyond the scope of described services or the time and budgetary constraints imposed by the Client. The work described in this report was carried out in accordance with the General Terms and Conditions attached to MTA's Agreement for Consulting Services.

2) In preparing this Report, MTA has relied on certain information provided by state

and local officials and information and representations made by other parties referenced therein, and on information contained in the files of state and/or local agencies made available to MTA. To the extent that such files are missing, incomplete or not provided to MTA, MTA is not responsible. Although there may have been some degree of overlap in the information provided by these various sources, MTA did not attempt to independently verify the accuracy or completeness of all information reviewed or received.

3) Observations may have been made of the site and of structures on the site as

indicated within the Report. Where access to portions of the site or to structures on the site was unavailable or limited, MTA renders no opinion as to the presence of hazardous substances, wastes or petroleum and chemical products and wastes. In addition, MTA renders no opinion as to the presence of indirect evidence relating to hazardous substances or wastes, or petroleum and chemical products or wastes, where direct observation of the interior walls, floors, or ceilings of structures on a site were obstructed by objects or coverings on or over these surfaces.

4) Unless otherwise specified in the Report, MTA did not perform testing or

analyses to determine the presence or concentration of asbestos, radon, methane, or polychlorinated biphenyls (PCBs) at the site or in the environment of the site.

5) Unless otherwise specified in the Report, the purpose of this Report was to assess

the physical characteristics of the subject site with respect to the presence in the environment of hazardous substances or wastes, or petroleum and chemical products and wastes. No specific attempt was made to check the compliance of present or past owners or operators of the site with federal, state, or local laws, rules and regulations, environmental or otherwise.

6) If the conclusions and recommendations contained in this Report are based in part

upon the data obtained from a limited number of soil samples obtained from widely spaced subsurface explorations; then the nature and extent of variations between these explorations may not become evident until further exploration. If variations or other latent conditions then appear evident, it will be necessary to re-evaluate the conclusions and recommendations of this report.

7) Except as noted in the text of the Report, no quantitative laboratory testing was

performed as part of MTA's environmental consulting services. Where such analyses have been conducted by an outside laboratory, MTA has relied upon the data provided, and has not conducted an independent evaluation of the reliability of these tests.

8) If the conclusions and recommendations contained in this report are based, in part,

upon various types of laboratory analytical data; then the conclusions and recommendations are contingent upon the validity of such data. These data (if obtained) have been reviewed and interpretations made in the Report. If indicated in the Report, some of these data may be preliminary "screening" level data and should be confirmed with quantitative analyses if more specific information is necessary. Moreover, it should be noted that variations in the types and concentrations of contaminants and variations in their flow paths may occur due to seasonal water table fluctuations, past disposal practices, the passage of time, and other factors. Should additional field or laboratory analytical data become available in the future, these data should be provided to MTA for review, and the conclusions and recommendations presented herein modified accordingly.

9) Laboratory or field analytical tests may have been performed for specific

parameters as described in the text of the Report. However, it should be noted that additional chemical constituents not searched for during the current study may be present in the air, soil, ground water or other materials at the site.

10) It is recommended that MTA be retained to provide further environmental

consulting services during the construction and/or implementation of any remedial measures recommended in the Report. This is to allow MTA to observe compliance with the concepts and recommendations contained herein, and to allow the development of changes in the remedial program in the event that subsurface conditions or other conditions differ from those anticipated.

11) MTA assumes no responsibility to report the findings of its environmental

consulting services to any federal, state or local regulatory agency. It is MTA's understanding that the Client shall advise the owner/operator of the facility to report any contaminants which have discharged into the environment.

C. SUBSURFACE INFORMATION 1) Locations: Unless stated otherwise, the locations of explorations performed by

MTA were approximately determined by tape measurement from the existing site facilities. Elevations of the explorations, if provided, were approximately determined by interpolation between contours shown on topographic plans provided to us by the owner. The locations and elevations of the explorations should be considered accurate only to the degree implied by the method used.

2) Interface of Strata: The stratification lines shown on the individual Logs of the

subsurface explorations represent the approximate boundary between soil types, and the transition may be gradual. Further, the subsurface conditions may vary between the subsurface explorations.

3) Field Logs/Final Logs: A field log was prepared for each exploration by a

member of our staff. The field log contains factual information and interpretation of the soil conditions between samples.

We must emphasize that our recommendations are based on the final logs and the

information contained therein, and not on the field logs. The final logs represent our interpretation of the contents of the field logs, and the

results of any observations and laboratory tests of the field samples. The final logs are included in our report.

4) Water Levels: If water level readings have been made in test pits, borings, and/or

monitoring wells; these observations were made at the times and under the conditions stated on the test pit, boring or monitoring well logs or in the report. However, it must be noted that fluctuations in the level of ground water may occur due to variations in rainfall, passage of time and other factors.

5) Additional Data: Should additional data become available in the future, these data should be provided to MTA for review, and the conclusions and recommendations presented in MTA's report modified accordingly.

D. EXCLUDED WORK 1) Unless specifically indicated to the contrary in this report, the scope of our

services was limited only to investigation and evaluation of the items discussed in the "Purpose and Scope of Work" section of our Agreement for Consulting Services, and did not include any consideration of potential site pollution or contamination resulting from radon gas, methane gas, asbestos or radioactive elements.

2) Unless specifically indicated to the contrary in this report, this report does not

address the following environmental considerations which may affect the site development: wetlands determinations; flora and fauna; wildlife; etc. The conclusions and recommendations of this report are not intended to supersede any of these additional environmental considerations.

E. STANDARD OF CARE

1) Services performed by MTA under MTA's Agreement for Consulting Services were conducted in a manner consistent with that level of care and skill ordinarily exercised by members of the profession currently practicing under similar conditions. NO OTHER WARRANTY, EXPRESSED OR IMPLIED, IS MADE.

2) Client recognizes that subsurface conditions may vary from those encountered at

the locations where borings, surveys or other explorations are made by MTA and that the data, interpretations and recommendations of MTA are based solely on the information available to MTA. MTA will be responsible for those data, interpretations and recommendations but shall not be responsible for the interpretations by others of the information developed.

F. USE OF DATA

1) Unless otherwise specified in our Agreement for Consulting Services, the client acknowledges that the data developed by MTA is intended for use in design efforts only, and may not be sufficient to prepare an accurate bid or to determine the exact extent of work required. Client agrees to inform the design team and all prospective bidders that the data in our reports should not be relied on to estimate bid quantities, schedules, costs, etc. Client agrees to require all prospective bidders to perform whatever additional explorations or data gathering they deem necessary to prepare their bids accurately, and will allow sufficient time in the bidding process for prospective contractors to do so. If Client fails to do either, Client releases and gives up all claims against MTA for extra payment related to

the work and agrees to indemnify and save harmless MTA from all contractor and other third party claims for extra payment.

G. OWNERSHIP OF DOCUMENTS

1) Client agrees that all reports and other work furnished to the Client or his agents, which are not paid for, will be returned upon demand and will not be used for any purposes whatever.

H. CONSTRUCTION OBSERVATION 1) We recommend that MTA be retained to provide continuous on-site consultation

services during the construction and/or remediation phases of the work. This is to observe compliance with the design concepts and to allow changes in the event that subsurface conditions differ from those anticipated prior to the start of construction and/or remediation.

APPENDIX II

IAL Laboratory Summary and Chain-of-Custody Form

TABLE I SUMMARY OF LABORATORY TESTING RESULTS- SOIL SAMPLING

Town of Greenwich, Fairfield County, Connecticut Greenwich Housing Authority

Sample Number: TP-1 TP-2 TP-3 TP-4 Sample Depth (ft.): 3.0 4.0 4.0 4.0 Sample Matrix Soil Soil Soil Soil Sample Date: 10/24/2014 10/24/2014 10/24/2014 10/24/2014 Laboratory ID No: 10367-001 10367-002 10368-003 10367-004 ANALYTE Concentration in Parts Per Million (ppm) "A" "B" Volatile Organic Compounds (VOC): Carbon disulfide Total VOC's VOC-TIC's Total VOC's & TIC's Semivolatiles- PAR's: Naphthalene 2-Methy ]naphthalene Acenaphthy lene Fluorene Phenanthrene Anthracene Carbazole Fluoranthene Pyrene Benzo[a]anthracene Chrysene Bis(2-ethylhextyl)phthalate Benzo[b ]fluoranthene Benzo[k] fl uoranthene Benzo[a lpyrene Indeno[ 1 ,2,3-cd]pyrene Dibenz[ a,h ]anthracene Benzo[g,h,i}perylene Total BNA's Total TIC's Total BNA's & TIC's PCB's:

Notes:

Table 1

"A" "B" "C" * ND NS cs Bold Italics

ND (0.000731) ND (0.000684) ND (0.00134) 0.00222 NS NS ND ND ND 0.00222 cs cs ND ND ND ND NS NS ND ND ND 0.00222 NS NS

ND (0.022) ND (0.21) ND (0.041) 0.111 1,000 5.6 ND (0.027) ND (0.26) ND (0.050) 0.124 NS NS ND (0.022) ND (0.21) ND (0.041) 0.049 1,000 8.4 ND (0.022) ND (0.21) ND (0.041) 0.067 1.000 5.6

0.067 0.171 ND (0.041) 0.461 1,000 4 ND (0.022) 0.044 ND (0.041) 0.114 1,000 40 ND (0.022) ND (0.21) ND (0.041) 0.050 NS NS

0.120 0.354 ND (0.041) 0.903 1,000 5.6 0.108 0.284 ND (0.041) 0.768 1,000 4 0.065 0.165 ND (0.041) 0.549 1 1 0.077 0.194 ND (0.041) 0.615 NS NS 0.060 0.104 ND (0.041) ND (0.036) 44 1 0.070 0.185 ND (0.041) 0.659 1 1 0.060 0.149 ND (0.041) 0.309 8.4 1 0.074 0.183 ND (0.041) 0.501 1 1 0.051 0.134 ND (0.041) 0.369 NS NS

ND (0.037) 0.065 ND (0.041) 0.126 NS NS 0.056 0.148 ND (0.041) 0.394 NS NS 0.808 2.18 ND 6.17 cs cs ND 1.25 7.98 I8.1 NS NS

0.808 3.43 7.98 24.3 NS NS 0.00217 O.OI5 ND (0.0014) ND (O.OOI24) I 0.0005*

Connecticut Direct Exposure Criteria for Soil Residential Criteria Connecticut Pollutant Mobility Criteria for Soil (GA & GAA Ground Water Classification) Connecticut Pollutant Mobility Criteria for Soil (GB Ground Water Classification) Mobility Criteria by TCLP or by SPLP Not detected (laboratory method detection limit in parenthesis) No Standard established Compound Specific Concentration above Connecticut Direct Exposure Criteria for Soil Residential Criteria

Concentration above Connecticut State Agencies Pollutant Mobility Criteria for Soil

9242-002* lD Page I of2

"C"

NS cs NS NS

56 NS 84 56 40

400 NS 56 40 1

NS 11 1 1 1

NS NS NS cs NS NS

0.005*

Sample Number: Sample Depth (ft.): Sample Matrix Sample Date: Laboratory ID No: ANALYTE Pesticides: 4,4'-DDE 4,4'-DDD 4,4'-DDT Chlordane Metals: Aluminum Antimony Arsenic Barium Beryllium Cadmium Calcium Chromium Cobalt Copper Iron Lead Magnesium Manganese Mercury Nickel Potassium Selenium Silver Sodium Thallium Vanadium Zinc Total Cyanide:

Notes:

Table 3

TABLE 1 SUMMARY OF LABORATORY TESTING RESULTS- SOIL SAMPLING

Town of Greenwich, Fairfield County, Connecticut Greenwich Housing Authority

TP-1 TP-2 TP-3 TP-4 3.0 4.0 4.0 4.0 Soil Soil Soil Soil

10/24/2014 10/24/2014 10/24/2014 10/24/2014 10367-001 10367-002 10368-003 10367-004

Concentration in Parts Per Million (ppm) "A" "B"

ND (0.000908) 0.00578 ND (0.000349) ND (0.00155) NS NS ND (0.000908) 0.00522 ND (0.000349) 0.035 NS NS

"A" "B" "C" * ND NS cs Bold Italics

0.00128 0.029 ND (0.000349) ND (0.00155) NS NS 0.00103 0.00731 ND (0.000349) ND (0.00155) NS 0.066

16,500 14,600 15,000 23,200 NS NS ND (0.298) ND (0.275) ND (0.561) ND (0.501) 27 0.006*

1.12 3.62 3.27 9.16 10 0.05* 140 196 377 328 4,700 1* 1.30 0.720 1.28 1.33 2 0.004*

ND (0.149) 0.156 0.570 1.00 34 0.005* 3,730 5,230 2,840 3,410 NS NS 280 70.8 39.1 61.9 NS 0.05* 14.6 12.0 5.36 13.6 NS NS 10.4 29.0 32.5 48.5 2,500 1.3*

20,400 22,500 9,100 27,500 NS NS 16.0 39.9 10.0 218 500 0.015*

20,200 10,100 2,620 6,600 NS NS 424 400 113 330 NS NS

ND (0.022) 0.031 0.085 0.530 20 0.002* 177 34.9 24.7 32.6 1.400 0.1 *

4,440 6,270 586 1,720 NS NS ND (0.596) 1.55 7.15 3.48 340 0.05* ND {0.149) ND (0.138) ND (0.280) 0.258 340 0.036*

93.9 103 123 180 NS NS 0.391 0.655 0.305 0.562 5.4 0.005* 27.1 48.1 28.8 53.5 470 0.05* 48.8 73.3 45.2 554 20,000 5*

ND (0.447) ND (0.442) ND (0.839) ND (0.743) 1,400 0.2*

Connecticut Direct Exposure Criteria for Soil Residential Criteria Connecticut Pollutant Mobility Criteria for Soil (GA & GAA Ground Water Classification) Connecticut Pollutant Mobility Criteria for Soil (GB Ground Water Classification) Mobility Criteria By TCLP or by SPLP Not detected (laboratory method detection limit in parenthesis) No Standard established Compound Specific Concentration above Connecticut Direct Exposure Criteria for Soil Residential Criteria

Concentration above Connecticut State Agencies Pollutant Mobility Criteria for Soil

9249-002 * 1D Page 2 of2

"C"

NS NS NS

0.066

NS 0.06* 0.5* 10.0* 0.04* 0.05* NS 0.5* NS 13* NS

0.15* NS NS

0.02* 1.0* NS 0.5*

0.36* NS

0.05* 0.50* 50* 2.0*

PARAMETER(Units)

INTEGRA TED ANALYTICAL LABORATORIES, LLC.

SUMMARY REPORT Client: Melick Tully And Associates

Project: GREENWICH HOUSING AUTHORITY Lab Case No.: E14-10367

Lab ID: 10367-001 10367-002 10367-003 Client ID:

Depth: Matrix:

Sampled Date

TP-1 3

Soil 10/24/14

Cone Q MDL

TP-2 4

Soil 10/24/14

Cone Q MDL

(mg!Kg)

TP-3 4

Soil 10/24/14

Cone Q MDL

(mg/Kg)

10367-004 TP-4

4 Soil

10/24/14 Cone Q MDL

(mg!Kg) Volatiles (Units)

Carbon disulfide ND

(mg/Kg)

0.000731 ND 0.000684 ND 0.00134 0.00222 J 0.00128

TOTAL VO's: TOTAL TIC's: TOTAL VO's & TIC's:

Semivolatiles- BNA (Units)

Naphthalene 2-Methylnaphthalene Acenaphthy lene Fluorene Phenanthrene Anthracene Carbazole Fluoranthene Pyrene Benzo[ a ]anthracene Chrysene Bis(2-ethylhexyl) phthalate Benzo[b ]fluoranthene Benzo[k ]fluoranthene Benzo[a]pyrene Indeno[ 1 ,2,3-cd]pyrene Dibenz[ a,h ]anthracene Benzo ,h i e lene

TOTAL BNA'S: TOTAL TIC's: TOTAL BNA'S & TIC's:

PCB's (Units)

Aroclor-1 016 Aroclor-1221 Aroclor-1232 Aroclor-1242 Aroclor-1248 Aroclor-1254 Aroclor-1260 Aroclor-1262 Aroclor-1268 PCBs

ND ND ND

(mg!Kg)

ND 0.022 ND 0.027 ND 0.022 ND 0.022

0.067 0.022 ND 0.022 ND 0.022

0.120 0.108 0.065 0.077 0.060 0.070 0.060 0.074 0.051 ND

0.056

0.808 ND

0.808

(mg!Kg)

0.022 0.022 0.022 0.022 0.022 0.022 0.022 0.022 0.022 0.022 0.022

ND 0.000728

1

ND 0.000728 ND 0.000728

ND ND ND

ND ND ND

(mg!Kg) (mg!Kg)

ND 0.021 ND 0.041 ND 0.026 ND 0.050 ND 0.021 ND 0.041 ND 0.021 ND 0.041

0.171 0.021 ND 0.041 0.044 0.021 ND 0.041 ND 0.021 ND 0.041

0.354 0.284 0.165 0.194 0.104 0.185 0.149 0.183 0.134 0.065 0.148

2.18 1.25 J 3.43 J

0.021 0.021 0.021 0.021 0.021 0.021 0.021 0.021 0.021 0.021 0.021

ND ND ND ND ND ND ND ND ND ND ND

ND 7.98 J 7.98 J

0.041 0.041 0.041 0.041 0.041 0.041 0.041 0.041 0.041 0.041 0.041

(mg!Kg) (mg!Kg)

ND 0.000728 ND 0.0014 ND ND

ND 0.000728 ND

0.000728 ND 0.000728 ND 0.000728

1

ND 0.000728

1 ND

0.000728 ND 0.000728 ND 0.000728 ND 0.000728 ND

0.0014 0.0014 0.0014 0.0014 0.0014 0.0014 0.0014 0.0014

ND 0.000728 ND ND 0.000728 ND

0.00217 0.000728 O.D15 ND 0.000728 ND ND 0.000728 ND

0.00217 0.000728 O.D15 0.000728 1 ND 0.0014

ND = Analyzed for but Not Detected at the MDL

0.00222 J ND

0.00222 J

(mg!Kg)

0.111 0.036 0.124 0.045 0.049 J 0.036 0.067 0.036 0.461 0.036 0.114 0.036 0.050 J 0.036 0.903 0.768 0.549 0.615 ND

0.659 0.309 0.501 0.369 0.126 0.394

6.17 J 18.1 J 24.3 J

0.036 0.036 0.036 0.036 0.036 0.036 0.036 0.036 0.036 0.036 0.036

(mg!Kg)

ND ND ND ND ND ND ND ND ND ND

0.00124 1 0.00124 0.00124 0.00124

1

0.00124 0.00124 0.00124 0.00124 0.00124 0.00124

J =Concentration detected at a value below the RL and above the MDL for target compounds. For non-target compounds (i.e. TICs), qualifier indicates estimated concentrations. All qualifiers on individual Volatiles & Semivolatiles are carried down through summation.

INTEGRATED ANALYTICAL LABORATORIES, LLC.



Lab ID: 10367-001 10367-002 10367-003 10367-004

Client ID: I TP-1 TP-2 TP-3 TP-4 Depth: 3 4 4 4

Matrix: 1

Soil Soil Soil Soil

Sampled Date J 10/24/14 10/24/14 10/24/14 10/24/14 PAI~AMETER(Units} Cone Q MDL Cone Q MDL Cone Q MDL Cone Q MDL

Pesticides (Units) I (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg)

alpha-BHC ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 beta-BHC ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 gamma-BHC (Lindane) ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 delta-BHC ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 Heptachlor ND 0.000908 ND 0.000909 1 ND 0.000349 ND 0.00155 Aldrin ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 Heptachlor epoxide ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 Endosulfan I ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 4,4'-DDE ND 0.000908 0.00578 D 0.000909 ND 0.000349 ND 0.00155 Dieldrin ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 Endrin ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 Endosulfan II ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 4,4'-DDD ND 0.000908 0.00522 D 0.000909 ND 0.000349 0.035 D 0.00155

1 Endrin aldehyde ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 Endosulfan sulfate ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 4,4'-DDT 0.00128 DJ 0.000908 0.029 D 0.000909 ND 0.000349 ND 0.00155 Endrin ketone ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 Methoxychlor ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 alpha-Chlordane 0.00103 DJ 0.000908 0.00416 D 0.000909 ND 0.000349 ND 0.00155 gamma-Chlordane ND 0.000908 0.00315 D 0.000909 ND 0.000349 ND 0.00155 Toxaphene ND 0.011 ND 0.011 ND 0.00419 ND 0.019 Endosulfan (I and II) ND 0.000908 ND 0.000909 ND 0.000349 ND 0.00155 Chlordane al ha and I o.oo1o3 m o.ooo9o8 0.00731 D 0.000909 ND 0.000349 ND 0.00155

ND =Analyzed for but Not Detected at the MDL J = Concentration detected at a value below the RL and above the MDL for target compounds. For non-target compounds (i.e. TICs), qualifier indicates estimated concentrations. D = The compound was reported from the Diluted analysis

INTEGRA TED ANALYTICAL LABORATORIES, LLC.



Lab ID: 10367-001 10367-002 10367-003 10367-004 Client ID: TP-1 TP-2 TP-3 TP-4

Depth: 3 4 4 4 Matrix: Soil Soil Soil Soil

Sampled Date 10/24/14 10/24/14 10/24/14 10/24/14 PARAMETER~lJnits~ Cone Q MDL Cone Q MDL I Cone Q MDL Cone Q MDL

Metals (Units) (mg/Kg) (mg/Kg) I (mg/Kg) (mg/Kg)

Aluminum 16500 0.596 14600 0.550 15000 1.12 23200 1.00 Antimony ND 0.298 ND 0.275 ND 0.561 ND 0.501 Arsenic 1.12 0.298 3.62 0.275 3.27 0.561 9.16 0.501 Barium 140 0.596 196 0.550 377 1.12 328 1.00 Beryllium 1.30 0.238 0.720 0.220 1.28 0.449 1.33 0.401 Cadmium ND 0.149 0.156 J 0.138 0.570 J 0.280 1.00 0.251 Calcium 3730 5.96 5230 5.50 2840 11.2 3410 10.0 Chromium 280 0.596 70.8 0.550 39.1 1.12 61.9 1.00 Cobalt 14.6 0.596 12.0 0.550 5.36 1.12 13.6 1.00 Copper 10.4 0.596 29.0 0.550 32.5 1.12 48.5 1.00 Iron 20400 5.96 22500 5.50 9100 11.2 27500 10.0 Lead 16.0 0.596 39.9 0.550 10.0 1.12 218 1.00 Magnesium 20200 5.96 10100 5.50 2620 11.2 6600 10.0 Manganese 424 0.298 400 0.275 113 0.561 330 0.501 Mercury ND 0.022 0.031 J 0.026 0.085 J 0.049 0.530 0.039 Nickel 177 0.596 34.9 0.550 24.7 1.12 32.6 1.00 Potassium 4440 5.96 6270 5.50 586 11.2 1720 10.0 Selenium ND 0.596 1.55 0.550 7.15 1.12 3.48 1.00 Silver ND 0.149 ND 0.138 ND 0.280 0.258 J 0.251 Sodium 93.9 5.96 103 5.50 123 11.2 180 10.0 Thallium 0.391 J 0.149 0.655 0.138 0.305 J 0.280 0.562 J 0.251 Vanadium 27.1 0.596 48.1 0.550 28.8 1.12 53.5 1.00 Zinc 48.8 0.596 73.3 0.550 45.2 1.12 554 1.00

General Analytical (Units)

Cyanide, Total(mg/Kg) ND 0.447 ND 0.442 ND 0.839 ND 0.743

ND =Analyzed for but Not Detected at the MDL J =Concentration detected at a value below the RL and above the MDL for target compounds. For non-target compounds (i.e. TICs), qualifier indicates estimated concentrations.

INTEGRA TED ANALYTICAL LAB ORA TORIES, LLC. Semivolatile Organics TIC Summary

CAS #:TIC Name Cone Q RTime

Lab ID: 10367-002 UNKALKI :Unknown Alkane 0.263 J 8.39 UNKALK2:Unknown Alkane 0.144 J 9.11 UNKHYDROCARB 1: Unknown Hydroca 0.246 J 7.42 UNKHYDROCARB2: Unknown Hydroca 0.144 J 8.23 UNKPAH1:Unknown PAH 0.239 J 8.73 UNKSV1:Unknown SV 0.217 J 9.16

Lab ID: 10367-003 UNKALK1: Unknown Alkane 1.23 J 7.41 UNKALK2:Unknown Alkane 0.873 J 8.38 UNKALK3: Unknown Alkane 0.765 J 7.84 UNKALK4:Unknown Alkane 0.447 J 9.11 UNKALK5:Unknown Alkane 0.277 J 7.00 UNKHYDROCARB 1 :Unknown Hydroca 0.616 J 9.23 UNKHYDROCARB2:Unknown Hydroca 0.494 J 8.46 UNKHYDROCARB3: Unknown Hydroca 0.332 J 10.28 UNKSV1:Unknown SV 0.609 J 10.97 UNKSV2:Unknown SV 0.508 J 11.23 UNKSV3:Unknown SV 0.433 J 10.92 UNKSV4:Unknown SV 0.359 J 10.12 UNKSV5:Unknown SV 0.352 J 10.55 UNKSV6:Unknown SV 0.345 J 8.90 UNKSV7:Unknown SV 0.338 J 11.13

Lab ID: 10367-004 UNKALK 1 :Unknown Alkane 0.853 J 9.13 UNKALK2:Unknown Alkane 0.756 J 8.40 UNKAROMATIC1:Unknown Aromatic 0.278 J 6.55 UNKHYDROCARB 1: Unknown Hydroca 4.83 J 7.87 UNKHYDROCARB2:Unknown Hydroca 4.42 J 7.42 UNKHYDROCARB3: Unknown Hydroca 0.447 J 7.00 UNKHYDROCARB4:Unknown Hydroca 0.447 J 8.24 UNKPAH1:Unknown PAH 0.671 J 8.74 UNKPAH2:Unknown PAH 0.357 J 6.31 UNKSVl:Unknown SV 1.41 J 10.84 UNKSV2:Unknown SV 1.22 J 10.94 UNKSV3: Unknown SV 0.998 J 11.25 UNKSV4:Unknown SV 0.714 J 11.82 UNKSV5:Unknown SV 0.363 J 4.97 UNKSV6:Unknown SV 0.308 J 6.25

Cone = Estimated Concentration RTime =Retention Time D = Dilution required for this compound J =Estimated concentration for TICs N = Presumptive evidence of a compound from the use of GC/MS library search

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