HOPE STREET PROJECT 108-134 HOPE STREET BROOKLYN, NEW YORK NYSDEC BCP Site Number: C224281 REMEDIAL ACTION WORK PLAN February 2021 Prepared for: Hope-Keap Owner LLC 199 Lee Ave #554 Brooklyn, NY 11211 AMC Engineering, PLLC 18-36 42nd Street, Astoria, NY 11105 (516) 545-0474 HOPE STREET PROJECT 108-134 Hope Street, Brooklyn, NY Remedial Action Work Plan CERTIFICATIONS Ariel Czemerinski I ___________certify that I am currently a NYS registered professional engineer and that this Remedial Action Work Plan was prepared in accordance with all applicable statutes and regulations and in substantial conformance with the DER Technical Guidance for Site Investigation and Remediation (DER-10). 02/25/2021 076508 NYS Professional Engineer # Date Signature It is a violation of Article 145 of New York State Education Law for any person to alter this document in any way without the express written verification of adoption by any New York State licensed engineer in accordance with Section 7209(2), Article 145, New York State Education Law. TABLE OF CONTENTS REMEDIAL ACTION WORK PLAN HOPE STREET PROJECT EXECUTIVE SUMMARY ........................................................................................................... i 1.0 INTRODUCTION............................................................................................................. 1 1.1 SITE LOCATION AND DESCRIPTION ................................................................. 2 1.2 CONTEMPLATED REDEVELOPMENT PLAN .................................................... 2 1.3 DESCRIPTION OF SURROUNDING PROPERTY ................................................ 3 2.0 DESCRIPTION OF REMEDIAL INVESTIGATION FINDINGS ............................. 4 2.1 SUMMARY OF REMEDIAL INVESTIGATIONS PERFORMED ........................ 4 2.1.1 Soil Borings ................................................................................................... 4 2.1.2 Monitoring Wells ........................................................................................... 5 2.1.3 Samples Collected .......................................................................................... 6 2.1.4 Chemical Analytical Work Performed ........................................................... 9 2.1.5 Documentation ............................................................................................. 10 2.2 SIGNIFICANT THREAT ........................................................................................ 10 2.3 SITE HISTORY ....................................................................................................... 10 2.3.1 Past Uses and Ownership ............................................................................. 10 2.3.2 Summary of Previous Reports ..................................................................... 13 2.4 GEOLOGICAL CONDITIONS .............................................................................. 16 2.5 CONTAMINATION CONDITIONS ...................................................................... 16 2.5.1 Description of Areas of Concern ................................................................. 16 2.5.2 Soil/Fill Contamination ................................................................................ 16 2.5.3 On-Site and Off-Site Groundwater Contamination ..................................... 17 2.5.4 On-Site and Off-Site Soil Vapor Contamination ......................................... 18 2.5.5 Environmental and Public Healt Assessment .............................................. 18 2.6 REMEDIAL ACTION OBJECTIVES .................................................................... 19 2.6.1 Groundwater ................................................................................................ 21 2.6.2 Soil .............................................................................................................. 21 2.6.3 Soil Vapor .................................................................................................... 21 3.0 DESCRIPTION OF REMEDIAL ACTION PLAN .................................................... 22 3.1 EVALUATION OF REMEDIAL ALTERNATIVES ............................................ 22 3.2 STANDARDS, CRITERIA AND GUIDANCE (SCG) .......................................... 22 3.3 ALTERNATIVES ANALYSIS ............................................................................... 24 3.4 REMEDIAL ALTERNATIVE 1 ............................................................................. 27 3.4.1 Overall Protection of Human Health and the Environment ......................... 27 3.4.2 Compliance with Remedial Goals, SCGs and RAOs .................................. 28 3.4.3 Long-Term Effectiveness and Permanence ................................................. 28 3.4.4 Reduction in Toxicity, Mobility or Volume through Treatment ................. 28 3.4.5 Short-Term Effectiveness ............................................................................ 28 3.4.6 Implementability .......................................................................................... 29 3.4.7 Cost .............................................................................................................. 29 3.4.8 Compatibility with Land Use ....................................................................... 30 3.4.9 Community Acceptance ............................................................................... 30 TABLE OF CONTENTS REMEDIAL ACTION WORK PLAN HOPE STREET PROJECT 3.5 REMEDIAL ALTERNATIVE 2 ............................................................................. 31 3.5.1 Overall Protection of Human Health and the Environment ......................... 31 3.5.2 Compliance with Remedial Goals, SCGs and RAOs .................................. 32 3.5.3 Long-term Effectiveness and Permanence ................................................... 32 3.5.4 Reduction in Toxicity, Mobility or Volume through Treatment ................. 32 3.5.5 Short-term Effectiveness .............................................................................. 32 3.5.6 Implementability .......................................................................................... 33 3.5.7 Cost .............................................................................................................. 33 3.5.8 Compatibility with Land Use ....................................................................... 34 3.5.9 Community Acceptance ............................................................................... 34 3.6 REMEDIAL ALTERNATIVE 3 ............................................................................. 35 3.6.1 Overall Protection of Human Health and the Environment ......................... 35 3.6.2 Compliance with Remedial Goals, SCGs and RAOs .................................. 35 3.6.3 Long-term Effectiveness and Permanence ................................................... 35 3.6.4 Reduction in Toxicity, Mobility or Volume through Treatment ................. 36 3.6.5 Short-term Effectiveness .............................................................................. 36 3.6.6 Implementability .......................................................................................... 36 3.6.7 Cost .............................................................................................................. 37 3.6.8 Compatibility with Land Use ....................................................................... 37 3.6.9 Community Acceptance ............................................................................... 38 3.7 SELECTION OF THE PREFERRED REMEDY ................................................... 38 3.7.1 Preferred Remedy Land Use Factor Evaluation .......................................... 38 3.8 SUMMARY OF SELECTED REMEDIAL ACTIONS .......................................... 41 4.0 REMEDIAL ACTION PROGRAM ............................................................................. 45 4.1 GOVERNING DOCUMENTS ................................................................................ 45 4.1.1 Health & Safety Plan (HASP)...................................................................... 45 4.1.2 Quality Assurance Project Plan (QAPP) ...................................................... 46 4.1.3 Construction Quality Assurance Plan (CQAP) ............................................ 47 4.1.4 Soil/Materials Management Plan (SoMP) ................................................... 47 4.1.5 Erosion and Sediment Control Plan (ESCP) ................................................ 48 4.1.6 Community Air Monitoring Plan (CAMP) .................................................. 48 4.1.7 Contractors Site Operations Plan (SOP) ...................................................... 48 4.1.8 Citizen Participation Plan (CPP) .................................................................. 48 4.2 GENERAL REMEDIAL ACTION INFORMATION ............................................ 49 4.2.1 Project Organization .................................................................................... 49 4.2.2 Remedial Engineer ....................................................................................... 49 4.2.3 Remedial Action Schedule ........................................................................... 50 4.2.4 Work Hours .................................................................................................. 50 4.2.5 Site Security ................................................................................................. 50 4.2.6 Traffic Control