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
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REPORT ENVIRONMENTAL SOIL SAMPLING & … . ENVIRONMENTAL SOIL SAMPLING & TESTING . ... collected from each of the four test ... over 12 to approximately seven feet of silty sand or
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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 Page 3
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 Page 4
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,
Page 5
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
DR. BY
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NOTES:
NUMBER AND APPROXIMATE LOCATION OF TEST PITS PERFORMED FOR THIS STUDY
APPROXIMATE DEPTH IN FEET TO BOTTOM OF UNSUITABLE SOILS
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'.
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
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:
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
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
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.
SUMMARY REPORT Client: Melick Tully And Associates
Project: GREENWICH HOUSING AUTHORITY Lab Case No.: E14-10367
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.
SUMMARY REPORT Client: Melick Tully And Associates
Project: GREENWICH HOUSING AUTHORITY Lab Case No.: E14-10367
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.
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