Generic Template for Final Engineering Report

9029 FLATLANDS AVENUE BROOKLYN, NEW YORK Remedial Action Report NYC VCP Project Number 15CVCP061K E-Designation Project Number 15EHAZ194K Prepared For: Polizzotto Realty 6911 18th Avenue, Brooklyn, NY 11204 (718) 667-6682 Prepared By: Athenica Environmental Services, Inc. & Ariel Czemerinski, P.E. AMC Engineering 18-36 42nd Street, Queens, NY 11105 [email protected] FEBRUARY 2017 (Rev. 1 – JULY 2017) REMEDIAL ACTION REPORT TABLE OF CONTENTS TABLE OF CONTENTS ............................................................................................................... I LIST OF ACRONYMS ................................................................................................................. V CERTIFICATION ...................................................................................................................... VI EXECUTIVE SUMMARY ........................................................................................................... 1 REMEDIAL ACTION REPORT ................................................................................................ 9 1.0 SITE BACKGROUND ........................................................................................................ 9 1.1 SITE LOCATION AND BACKGROUND.................................................................................... 9 1.2 REDEVELOPMENT PLAN .......................................................................................................... 9 1.3 DESCRIPTION OF SURROUNDING PROPERTY ................................................................... 10 1.4 SUMMARY OF PAST SITE USES AND AREAS OF CONCERN ........................................... 10 1.5 SUMMARY OF WORK PERFORMED UNDER THE REMEDIAL INVESTIGATION ......... 11 1.6 SUMMARY OF FINDINGS OF REMEDIAL INVESTIGATION ............................................ 11 2.0 DESCRIPTION OF REMEDIAL ACTIONS ................................................................. 13 3.0 COMPLIANCE WITH REMEDIAL ACTION WORK PLAN ................................... 17 3.1 CONSTRUCTION HEALTH & SAFETY PLAN ....................................................................... 17 3.2 COMMUNITY AIR MONITORING PLAN ............................................................................... 17 3.3 SOIL/MATERIALS MANAGEMENT PLAN ............................................................................ 17 3.4 STORM-WATER POLLUTION PREVENTION ....................................................................... 17 3.5 DEVIATIONS FROM THE REMEDIAL ACTION WORK PLAN ........................................... 18 4.0 REMEDIAL PROGRAM ................................................................................................. 19 4.1 PROJECT ORGANIZATION ...................................................................................................... 19 4.2 SITE CONTROLS ....................................................................................................................... 19 4.3 MATERIALS EXCAVATION AND REMOVAL ACTION ...................................................... 21 4.4 MATERIALS DISPOSAL ........................................................................................................... 25 4.5 BACKFILL IMPORT .................................................................................................................. 25 4.6 DEMARACTION ........................................................................................................................ 26 5.0 ENGINEERING CONTROLS ......................................................................................... 27 6.0 INSTITUTIONAL CONTROLS ...................................................................................... 31 7.0 SITE MANAGEMENT PLAN ......................................................................................... 32 8.0 SUSTAINABILITY REPORT ......................................................................................... 37 i Remedial Action Report 9029 Flatlands Avenue, Brooklyn, NY February 2017 (Rev. 1 – July 2017) NYC VCP No. 15CVCP061K FIGURES Figure 1: Site Location Map Figure 2: Site Boundary Map Figure 3: Development Plan Figure 4: Map of End-Point Sample Locations Figure 5: Map of Excavation Locations and Depths Figure 6: Map of Former Tank Locations and Associated End-Point Sample Locations Figure 7: Map of Soil/Fill Reuse and Backfill Placement Locations Figure 8: As-built Composite Cover System Location and Design Figure 9: As-built Vapor Barrier System Location and Design Figure 10: As-built Sub-Slab Depressurization System Location and Design ii Remedial Action Report 9029 Flatlands Avenue, Brooklyn, NY February 2017 (Rev. 1 – July 2017) NYC VCP No. 15CVCP061K TABLES Table 1: Summary of Remediation/Excavation End-Point Analytical Results Table 2: Summary of Tank Associated End-Point Analytical Results Table 3: Disposal Quantities and Disposal Facilities iii Remedial Action Report 9029 Flatlands Avenue, Brooklyn, NY February 2017 (Rev. 1 – July 2017) NYC VCP No. 15CVCP061K APPENDICES Appendix A: Remedial Investigation Report Appendix B: Remedial Action Work Plan & Stipulation List Appendix C: Daily and Monthly Reports to OER Appendix D: Community Air Monitoring Data Appendix E: Photographs of Remedial Action Appendix F: Disposal Facility Requests, Historic Fill Notification Forms, and Approval Letters Appendix G: Shipping and Disposal Manifests Appendix H: Remediation/Excavation End-point Sample Analytical Laboratory Data Appendix I: Documentation for Engineering Controls Appendix J: UST and AST Closure Documentation Appendix K: SSDS Inspection Checklist Appendix L: RAWP Deviation Correspondence iv Remedial Action Report 9029 Flatlands Avenue, Brooklyn, NY February 2017 (Rev. 1 – July 2017) NYC VCP No. 15CVCP061K LIST OF ACRONYMS Acronym Definition CAMP Community Air Monitoring Plan DER-10 NYS DEC Division of Environmental Remediation Technical Guidance Manual 10 DUSR Data Usability Summary Report EC Engineering Control HASP Health and Safety Plan IC Institutional Control NYC VCP New York City Voluntary Cleanup Program NYC DEP New York City Department of Environmental Protection NYC DOHMH New York City Department of Health and Mental Hygiene NYC OER New York City Office of Environmental Remediation NYS DEC New York State Department of Environmental Conservation ORC Oxygen Release Compound PID Photoionization Detector QA/QC Quality Assurance/Quality Control QEP Qualified Environmental Professional RAR Remedial Action Report RAWP Remedial Action Work Plan RCA Recycled Concrete Aggregate SCG Standards, Criteria and Guidance SCO Soil Cleanup Objective SMMP Soil/Materials Management Plan SMP Site Management Plan SPDES State Pollutant Discharge Elimination System SVOCs Semi-Volatile Organic Compounds UST Underground Storage Tank VOCs Volatile Organic Compounds v Remedial Action Report 9029 Flatlands Avenue, Brooklyn, NY February 2017 (Rev. 1 – July 2017) NYC VCP No. 15CVCP061K EXECUTIVE SUMMARY Polizzotto Realty has enrolled in the New York City Voluntary Cleanup Program (NYC VCP) to investigate and remediate a property located at 9029 Flatlands Avenue in Canarsie section of Brooklyn, New York. A Remedial Investigation (RI) was performed to compile and evaluate data and information necessary to develop a Remedial Action Work Plan (RAWP). A remedial action was performed pursuant to the OER-approved RAWP in a manner that has rendered the Site protective of public health and the environment consistent with the proposed use of the property. This RAR describes the remedial action performed under the RAWP. The remedial action described in this document provides for the protection of public health and the environment and complies with applicable environmental standards, criteria and guidance and applicable laws and regulations. Site Location and Background The Site is located at 9029 Flatlands Avenue (aka 1159 East 92nd Street) in the Canarsie section of Brooklyn, New York and is identified as Block 8179 and Lot 1 on the New York City Tax Map. The Site is 16,568-square feet and is bounded by a residential building and an auto repair facility to the north, several commercial properties to the south, several commercial/retail stores to the east, and a residential building to the west. Prior to redevelopment, the Site was developed with three, one-story commercial buildings. One of the buildings was utilized as retail store and the other two were vacant since approximately the mid-1980s. Summary of Redevelopment Plan The redevelopment of the Site consisted of a new 14,082-square foot, 2-story commercial building, leaving a 10 foot concrete walkway on the eastern side of the building. The new, on- Site building does not have a basement. A fire escape/stairs are located on the western exterior portion of the building. There is a setback on the eastern side of the property above the first floor utilized as a mechanical area. Both the first floor and second floor of the building are utilized as a gym. As part of development, the entire Site was excavated to 1 foot below grade surface (bgs), another foot of minor excavation took place for the installation of sub-slab depressurization trenches,. In addition, minor excavation to 3-4 feet bgs took place for the installation of 1 Remedial Action Report 9029 Flatlands Avenue, Brooklyn, NY February 2017 (Rev. 1 – July 2017) NYC VCP No. 15CVCP061K structural footings, and an excavation to 5 feet bgs took place for the installation of a new elevator pit. A total of 200 cubic yards of native

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