34-11 BEACH CHANNEL DRIVE SITE BCP No. C241141 34-11 BEACH CHANNEL DRIVE FAR ROCKAWAY, NEW YORK Block 15950 Lots 14 and 24 REMEDIAL ACTION WORK PLAN MARCH 2015 Revised JUNE 2015 Prepared for: ALPROF REALTY LLC VFP REALTY LLC 85 Forestdale Road Rockville Centre, New York 11570 AMC Engineering 99 Jericho Turnpike, Suite 300J Jericho, NY 11753 Phone: (516) 417-8588 TABLE OF CONTENTS REMEDIAL ACTION WORK PLAN 34-11 BEACH CHANNEL DRIVE SITE EXECUTIVE SUMMARY ......................................................................................................... i 1.0 INTRODUCTION ........................................................................................................ 1 1.1 SITE LOCATION AND DESCRIPTION................................................................. 1 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 Borings........................................................................................................... 4 2.1.2 Cone Pentrometer Testing ............................................................................. 5 2.1.3 Monitoring Wells........................................................................................... 5 2.1.4 Samples Collected..........................................................................................6 2.1.4.1 Soil Samples....................................................................................... 6 2.1.4.2 Groundwater Samples........................................................................ 6 2.1.4.3 Soil Gas Samples ............................................................................... 7 2.1.5 Chemical Analytical Work Performed .......................................................... 8 2.1.6 Documentation............................................................................................... 8 2.2 SIGNIFICANT THREAT.......................................................................................... 9 2.3 SITE HISTORY .........................................................................................................9 2.3.1 Past Uses and Ownership............................................................................... 9 2.3.2 Summary of Previous Reports ..................................................................... 10 2.4 GEOLOGICAL CONDITIONS .............................................................................. 15 2.5 CONTAMINATION CONDITIONS...................................................................... 17 2.5.1 Conceptual Model of Site Contamination ................................................... 17 2.5.2 Description of Areas of Concern ................................................................. 18 2.5.3 Soil/Fill Contamination................................................................................ 18 2.5.3.1 Summary of Soil/Fill Contamination ............................................... 19 2.5.3.2 Comparison of Soil/Fill to SCGs ..................................................... 19 2.5.4 On-Site and Off-Site Groundwater Contamination ..................................... 19 2.5.4.1 Summary of Groundwater Contamination....................................... 20 2.5.4.2 Comparison of Groundwater with SCGs......................................... 20 2.5.5 On-Site and Off-Site Soil Vapor Contamination......................................... 20 2.5.5.1 Summary of Soil Vapor Contamination ........................................ 20 2.6 ENVIRONMENTAL AND PUBLIC HEALTH ASSESSMENTS ........................ 21 2.6.1 Qualitative Human Health Exposure Assessment ....................................... 21 2.6.2 Fish & Wildlife Remedial Impact Analysis................................................. 22 2.7 REMEDIAL ACTION OBJECTIVES.................................................................... 23 2.7.1 Groundwater................................................................................................ 23 2.7.2 Soil............................................................................................................... 23 2.7.3 Soil Vapor.................................................................................................... 23 TABLE OF CONTENTS REMEDIAL ACTION WORK PLAN 34-11 BEACH CHANNEL DRIVE SITE 3.0 DESCRIPTION OF REMEDIAL ACTION PLAN .................................................... 24 3.1 EVALUATION OF REMEDIAL ALTERNATIVES............................................. 24 3.2 STANDARDS, CRITERIA AND GUIDANCE (SCG) .......................................... 24 3.3 ALTERNATIVE ANALYSIS................................................................................. 26 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……...................................................................................................... 30 3.4.8 Compatibility with Land Use....................................................................... 30 3.4.9 Community Acceptance............................................................................... 31 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....................................................................... 33 3.5.9 Community Acceptance............................................................................... 34 3.6 SELECTION OF THE PREFERRED REMEDY ................................................... 34 3.6.1 Preferred Land Use Factor Evaluation......................................................... 34 3.7 SUMMARY OF SELECTED REMEDIAL ACTIONS.......................................... 37 4.0 REMEDIAL ACTION PROGRAM ............................................................................. 39 4.1 GOVERNING DOCUMENTS................................................................................ 39 4.1.1 Health and Safety Plan (HASP)................................................................... 39 4.1.2 Quality Assurance Project Plan (QAPP) ..................................................... 40 4.1.3 Construction Quality Assurance Plan (CQAP)............................................ 41 4.1.4 Soil/Materials Management Plan (SoMP) ................................................... 42 4.1.5 Storm-Water Pollution Prevention Plan (SWPPP) ...................................... 42 4.1.6 Community Air Monitoring Plan (CAMP).................................................. 42 4.1.7 Contractors Site Operations Plan (SOP)...................................................... 43 4.1.8 Community Participation Plan (CPP).......................................................... 43 TABLE OF CONTENTS REMEDIAL ACTION WORK PLAN 34-11 BEACH CHANNEL DRIVE SITE 4.2 GENERAL REMEDIAL ACTION INFORMATION ............................................ 44 4.2.1 Project Organization.................................................................................... 44 4.2.2 Remedial Engineer....................................................................................... 44 4.2.3 Remedial Action Schedule........................................................................... 45 4.2.4 Work Hours.................................................................................................. 45 4.2.5 Site Security................................................................................................. 45 4.2.6 Traffic Control............................................................................................. 45 4.2.7 Worker Training and Monitoring ................................................................ 46 4.2.8 Agency Approvals....................................................................................... 47 4.2.9 NYSDEC BCP Signage............................................................................... 47 4.2.10 Pre-Construction Meeting with NYSDEC................................................... 48 4.2.11