Parcel 8 Remedial Investigation Report Queens West Development BCP # C241067
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Parcel 8 SITE ID # BCP Site No. C241087 Long Island City, New York REMEDIAL INVESTIGATION REPORT Prepared for Queens West Development Corporation 633 Third Avenue New York, New York 10017 and Avalon Riverview II, LLC and Avalon Riverview III, LLC 275 7th Avenue New York, NY 10001 FLS Project Number: 10011-007-1 Submitted to New York State Department of Environmental Conservation Division of Environmental Remediation, Division 2 47-40 21st Street Long Island City, NY 11101 Arnold F. Fleming, P.E. & leming F Lee Shue ENVIRONMENTAL MANAGEMENT & CONSULTING 158 WEST 29TH Street, 9th Floor New York, New York 10001 April 2009 TABLE OF CONTENTS 1.0 INTRODUCTION ......................................................................................................................... 1 2.0 SITE DESCRIPTION AND HISTORY ...................................................................................... 3 2.1 SITE DESCRIPTION ........................................................................................................................................... 3 2.2 SITE HISTORY.................................................................................................................................................. 3 2.2.1 Historical Sanborn Maps ................................................................................................................ 4 2.2.2 Historical Site Uses and Ownership................................................................................................ 6 2.2.3 Surrounding Historical Land Use ................................................................................................... 7 2.2.4 Historic Fill and Urban Soils.......................................................................................................... 7 2.3 GEOLOGY ........................................................................................................................................................ 8 2.3.1 Regional Geology............................................................................................................................ 8 2.3.2 Local Geology ................................................................................................................................. 8 2.4 HYDROGEOLOGY............................................................................................................................................. 9 2.5 PREVIOUS INVESTIGATIONS............................................................................................................................. 9 2.6 SUMMARY OF SOIL AND GROUNDWATER & SOIL GAS CONDITIONS FROM PRIOR STUDIES ........................... 12 2.6.1 Soils............................................................................................................................................... 12 2.6.2 Groundwater ................................................................................................................................. 13 2.6.3 Soil Gas ......................................................................................................................................... 13 2.6.4 Area of Concern ............................................................................................................................ 14 3.0 RESULTS..................................................................................................................................... 15 3.1 EXPLORATORY SOIL GAS SAMPLING............................................................................................................. 15 3.2 GEOPHYSICAL SURVEY RESULTS .................................................................................................................. 16 3.3 TEST PIT AND SHALLOW SOIL SAMPLING RESULTS....................................................................................... 17 3.3.1 Shallow Soils – Surface to Two ft-bg............................................................................................. 18 3.3.2 Surficial Soils – Grade to 0.25 ft-bg.............................................................................................. 18 3.4 SOIL BORING RESULTS .................................................................................................................................. 21 3.4.1 Stratigraphy Description and Cross Sections ............................................................................... 22 3.4.2 Analytical Results.......................................................................................................................... 23 3.5 GEOTECHNICAL AND PHYSICAL PARAMETER TEST RESULTS ........................................................................ 24 3.6 FREE PRODUCT.............................................................................................................................................. 24 3.7 HYDROGEOLOGICAL DESCRIPTIONS .............................................................................................................. 25 3.8 TIDAL FLUCTUATION RESULTS...................................................................................................................... 27 3.9 GROUNDWATER SAMPLING RESULTS ............................................................................................................ 28 3.9.1 Groundwater Geochemical Parameters................................................................................................ 28 3.9.2 VOCs, SVOCs, and Metals in Groundwater ................................................................................. 31 3.9.3 Groundwater Plume Analysis........................................................................................................ 34 3.10 SURFACE WATER SAMPLING RESULTS .......................................................................................................... 35 3.11 SHALLOW SOIL GAS (SUMMA CANISTER) SAMPLING ................................................................................. 37 3.12 AMBIENT AIR ................................................................................................................................................ 39 3.13 CONTAMINATION MASS ESTIMATES.............................................................................................................. 39 3.14 SEDIMENT SAMPLING AND ANALYSIS ........................................................................................................... 41 3.15 DATA VALIDATION........................................................................................................................................ 49 3.16 DEVIATIONS FROM WORK PLAN.................................................................................................................... 51 3.17 QUALITATIVE HUMAN HEALTH EXPOSURE ASSESSMENT ............................................................................. 51 4.0 SITE CONCEPTUAL MODEL ................................................................................................. 54 5.0 CONTEMPLATED SITE PLANS............................................................................................. 56 6.0 SUMMARY.................................................................................................................................. 57 i FIGURES Figure 1 Site Location Map Figure 2 Site Plan and Sampling Locations Figure 3 Aerial View of Parcel 8 Figure 4 Land Use in Surrounding Area Figure 5 Historical Representation of Parcel 8,1896-1936 Figure 6 Historical Photograph & Site Layout Figure 7 Spider Diagram Showing Soil Exceeding SCOs in Surface and Shallow Soils Figure 8 Spider Diagram Showing Soil Exceeding SCOs in Soil Borings (A: FLS; B: AKRF) Figure 9 Geologic Cross Sections & NAPL Distribution Figure 10 Groundwater Contour Map, Shallow and Deep Figure 11 Tidal Fluctuations Figure 12 Spider Diagram showing Groundwater Exceeding TOGS 1.1.1. Class GA Standards Figure 13 Isopleth Map for BTEX and Naphthalene in Groundwater Figure 14 BTEX Compounds in Groundwater Figure 15 Multivariate Plots of Contamination Type Figure 16 Ratio of Sodium to Calcium in Surface and Groundwater Figure 17 Methane and C5+ Soil Gas Results Figure 18 Plate Views of Contaminant Source Area Figure 19 Contaminant Mass Distribution Figure 20 Select Metals and PAHs Summary in Sediment Figure 21 Comparison of Soil & Sediment Diagnostic Ratios Figure 22 Scatter plot of Aroclors 1254 and 1260 in Soil and Sediment Figure 23 Contemplated Development Schematic TABLES Table 1 Analytical Summary Table Table 2 Geophysical Anomalies Table 3A Test Pit Surficial Soil Results (0 to 0.25 ft bg) Table 3B Test Pit Shallow Soil Results (0 – 2 ft bg) Table 4 Analytical Results for Soil Borings Table 5 Geotechnical Results Table 6 Observed NAPL Thickness in Soil Borings Table 7 Well Installation Details Table 8A Analytical Results for Groundwater Sampling Table 8B Summary of Selected VOCs in Groundwater Table 9 Surface Water Sampling Results Table 10A Analytical Results for SUMMA Canister Soil Gas Table 10B Summa Canister Soil Gas, ppbv - Selected VOCs Summary Statistics Table 11 Comparison of Shallow Soil Gas to NYSDOH Values Table 12 Comparison of Total VOCs in Ambient Air and Shallow Soil Gas Table 13 Ratio of Benzene to Total Xylenes between Soil Gas and Ambient Air ii Table 14 Air Sampling Locations Table 15 Analytical Results for Ambient Air Table 16A & Table 16B Summary Statistics for Selected Ambient Air VOCs for on and Off-Site Locations Table 17 Analytical Results for Sediment Table 18A Select VOCs