Final Site Inspection Report, Revision 1 Norwood Landfill Norwood, Delaware County, Pennsylvania
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FINAL SITE INSPECTION REPORT, REVISION 1 NORWOOD LANDFILL NORWOOD, DELAWARE COUNTY, PENNSYLVANIA Prepared for: U.S. Environmental Protection Agency Region III Hazardous Site Cleanup Division 1650 Arch Street Philadelphia, PA 19103 Prepared By: Region III Superfund Technical Assessment and Response Team IV Weston Solutions, Inc. 1400 Weston Way West Chester, Pennsylvania 19380 EPA Contract No.: EP-S3-15-02 Technical Directive Document No.: W503-17-03-001 Document Control No.: W0146.1A.02389 September 2018 FINAL SITE INSPECTION REPORT, REVISION 1 NORWOOD LANDFILL NORWOOD, DELAWARE COUNTY, PENNSYLVANIA (b) (4) Approved by: 9/24/2018 WESTON – START Site Assessment Date Scope of Work Manager (b) (4) (b) (4) Approved by: 9/24/2018 WESTON – START Quality Date Assurance Manager (b) (4) Approved by: 10/9/2018 EPA Site Assessment Manager Date Christopher Vallone September 2018 TDD NO.: W503-17-03-001 DCN: W0146.1A.02389 Norwood Landfill Final Site Inspection Report, Rev. 1 TABLE OF CONTENTS Title Page 1.0 INTRODUCTION ............................................................................................................... 1 2.0 SITE BACKGROUND........................................................................................................ 1 2.1 SITE LOCATION AND DESCRIPTION ........................................................................1 2.2 SITE OWNERSHIP ..........................................................................................................2 2.3 PREVIOUS INVESTIGATIONS .....................................................................................2 3.0 SOURCE CHARACTERISTICS ........................................................................................ 6 3.1 SOURCE DESCRIPTION ................................................................................................6 3.2 SAMPLING LOCATIONS...............................................................................................7 3.3 ANALYTICAL RESULTS ...............................................................................................8 3.4 SOURCE CONCLUSIONS ............................................................................................12 4.0 GROUNDWATER MIGRATION PATHWAY ............................................................... 12 4.1 REGIONAL AND SITE GEOLOGY .............................................................................12 4.2 REGIONAL AND SITE HYDROGEOLOGY ...............................................................13 4.3 GROUNDWATER TARGETS.......................................................................................14 4.4 GROUNDWATER CONCLUSIONS.............................................................................15 5.0 SURFACE WATER MIGRATION PATHWAY ............................................................. 16 5.1 HYDROLOGIC SETTING .............................................................................................16 5.2 SURFACE WATER TARGETS.....................................................................................16 5.3 SAMPLING LOCATIONS.............................................................................................18 5.4 ANALYTICAL RESULTS .............................................................................................19 5.5 SURFACE WATER CONCLUSIONS...........................................................................21 6.0 SOIL EXPOSURE AND AIR MIGRATION PATHWAYS ............................................ 21 6.1 PHYSICAL CONDITIONS............................................................................................22 6.2 SOIL AND AIR TARGETS ...........................................................................................22 6.3 SAMPLING LOCATIONS.............................................................................................23 6.4 ANALYTICAL RESULTS .............................................................................................24 6.5 SOIL EXPOSURE AND AIR MIGRATION PATHWAY CONCLUSIONS ...............27 7.0 SUMMARY....................................................................................................................... 28 September 2018 TDD NO.: W503-17-03-001 DCN: W0146.1A.02389 Page i Norwood Landfill Final Site Inspection Report, Rev. 1 LIST OF FIGURES Title Figure 1 Site Location Map Figure 2 Site layout Map Figure 3 Sample Location Map Figure 4 4-Mile Radius Map with Distance Rings Figure 5 15-Mile Downstream Surface Water Pathway Map LIST OF TABLES Title Table 1 Norwood Landfill Surface and Subsurface Soil Samples VOC and SVOC Analytical Results Summary Table 2 Norwood Landfill Surface and Subsurface Soil Samples PCB and Pesticide Analytical Results Summary Table 3 Norwood Landfill Surface and Subsurface Soil Samples Inorganic Analytical Results Summary Table 4 Norwood Landfill Surface Water Inorganic Analytical Results Summary Table 5 Norwood Landfill Sediment Organic Analytical Results Summary Table 6 Norwood Landfill Sediment Inorganic Analytical Results Summary Table 7 Norwood Landfill Residential Surface Soil Samples VOC and SVOC Analytical Results Summary Table 8 Norwood Landfill Residential Surface Soil Samples PCB and Pesticide Analytical Results Summary Table 9 Norwood Landfill Residential Surface Soil Samples Inorganic Analytical Results Summary September 2018 TDD NO.: W503-17-03-001 DCN: W0146.1A.02389 Page ii Norwood Landfill Final Site Inspection Report, Rev. 1 APPENDIX APPENDIX A PHOTO DOCUMENTATION LOG APPENDIX B FIELD NOTES ATTACHMENT ATTACHMENT 1 ANALYTICAL DATA PACKAGES September 2018 TDD NO.: W503-17-03-001 DCN: W0146.1A.02389 Page iii Norwood Landfill Final Site Inspection Report, Rev. 1 LIST OF ACRONYMS AND ABBREVIATIONS µg/kg micrograms per kilogram µg/L micrograms per liter bgs below ground surface BTAG Biological Technical Assistance Group CERCLA Comprehensive Environmental Response, Compensation, and Liability Act of 1980 CLP Contract Laboratory Program CRQL Contract-Required Quantitation Limit CVAA Cold Vapor Atomic Absorption DELCORA Delaware County Regional Water Quality Control Authority EPA U.S. Environmental Protection Agency FSP Field Sampling Plan gpm/ft gallons per minute per foot HRS Hazard Ranking System ICP-AES Inductively Coupled Plasma-Atomic Emission Spectroscopy ICP-MS Inductively Coupled Plasma-Mass Spectrometry mg/kg milligrams per kilogram OLEM Office of Land and Emergency Management OSRTI Office of Superfund Remediation and Technology Innovation Table 6 PA Preliminary Assessment PADEP Pennsylvania Department of Environmental Protection PaGWIS Pennsylvania Groundwater Information System PAH polycyclic aromatic hydrocarbons PCB polychlorinated biphenyl RBC EPA Region III Risk-Based Concentration RDL reporting detection limit RSL EPA Regional Screening Level SI Site Investigation SIM Selective Ion Monitoring START Eastern Area Superfund Technical Assessment and Response Team September 2018 TDD NO.: W503-17-03-001 DCN: W0146.1A.02389 Page iv Norwood Landfill Final Site Inspection Report, Rev. 1 LIST OF ACRONYMS AND ABBREVIATIONS (CONTINUED) SVOC semivolatile organic compound TAL Target Analyte List TCL Target Compound List TDD Technical Direction Document TDL target distance limit USFWS U.S. Fish and Wildlife Service VOC volatile organic compound WESTON® Weston Solutions, Inc. September 2018 TDD NO.: W503-17-03-001 DCN: W0146.1A.02389 Page v Norwood Landfill Final Site Inspection Report, Rev. 1 1.0 INTRODUCTION Under the Eastern Area Superfund Technical Assessment and Response Team (START) Contract No. EP-S3-15-02, Technical Direction Document (TDD) No. W503-17-03-001, the U.S. Environmental Protection Agency (EPA) Region III tasked Weston Solutions, Inc. (WESTON®) to conduct a Site Inspection (SI) of the Norwood Landfill site (the Site) located in Norwood, Delaware County, Pennsylvania. The SI was conducted in accordance with EPA Guidance for Performing Site Inspections Under CERCLA (Reference [Ref.] 1). The purposes of the SI were to collect sufficient analytical data and information concerning conditions at the Site to assess the relative threat posed to human health and the environment with respect to actual or potential releases of hazardous substances, and to determine the need for additional action under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) based on criteria as set forth in EPA Hazard Raking System; Final Rule (Ref. 2). The original SI sampling effort in September 2017 included soil sampling in right-of-way areas adjacent to residential properties. Based on the analytical results from that effort showing elevated contaminant concentrations, EPA gained access and WESTON performed additional SI sampling at residential properties in May 2018. This report revision incorporates the results of the May 2018 sampling effort into the previous SI report dated February 2018. 2.0 SITE BACKGROUND This section presents a description of the Site and its location, provides a discussion of the Site’s ownership and history, and presents a summary of previous site investigation activities. 2.1 SITE LOCATION AND DESCRIPTION The Site consists of a suburban residential neighborhood in lower Norwood, Delaware County, Pennsylvania. The geographic coordinates of the approximate center of the Site are 39°52'55.76" north latitude and 75°17'29.04" west longitude (Ref. 3). As shown on Figure 1, Site Location Map, land use at the Site and the surrounding area is primarily residential. Norwood Borough September 2018 TDD NO.: W503-17-03-001 DCN: W0146.1A.02389