Remedial Investigation Report, Chemsol Inc. Superfund Site
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REMEDIAL INVESTIGATION REPORT CHEM8OL INC. SUPERFUND SITE PREPARED FOR: U.S. ENVIRONMENTAL PROTECTION AGENCY REGION II VOLUME I OCTOBER 1996 CDM FEDERAL PROGRAMS CORPORATION a subsidiary of Camp Dresser & McKee Inc. REMEDIAL INVESTIGATION REPORT CHEMSOL INC. SUPERFUND SITE PISCATAWAY TOWNSHIP, MIDDLESEX COUNTY, NEW JERSEY Prepared for U.S. ENVIRONMENTAL PROTECTION AGENCY, REGION H 290 Broadway New York, New York FPA Work Assignment No. 046-2LC3 EPA Region n Contract No. 68-W9-C024 CDM Federal Programs Corporation Document No. 7720-046-RI-CLYK Prepared By CDM FEDERAL PROGRAMS CORPORATION Work Assignment Man&ger Maheyar R. Bilimoria Telephone Number (212) 785-9123 EPA Work Assignment Manager James S. HakJar Telephone Number (212) 637-4414 Date Prepared October 17, 1996 Federal Programs Corporation A Subsidiary of Camp Dresser S McKee Inc 125 Maiden Lane. 5th Floor New York. New York 10038 Tel: 212 785-9123 Fax:212785-6114 October 17, 1996 Ms. Alison Devine Project Officer U.S. Environmental Protection Agency 290 Broadway, 18th Floor, Rm E34 New York, NY 10007-1866 Mr. James S. Haklar, P.E. Remedial Project Manager U.S. Environmental Protection Agency 290 Broadway, 19th Floor, Rm W32 New York, NY 10007-1866 PROJECT: ARCS H Contract No. 68-W9-0024 Work Assignment 046-2LC3 DCN: 7720-046-EP-CLYJ SUBJECT: Remedial Investigation Report Chemsol, Inc. Site, Township of Piscataway, Middlesex County, New Jersey Dear Ms. Devine and Mr. Haklar: CDM FEDERAL PROGRAMS CORPORATION (COM Federal) is pleased to submit this Remedial Investigation Report for the Chemsol, Inc. Superfund Site in Piscataway, New Jersey. CDM Federal has incorporated EPA's comments. As per your request, we are only submitting one copy of volumes I, LA and XV of this report. If you have any questions or comments concerning this submittal, please contact me or Dr. Bilimoria at (212) 785-9123. Very truly yours, CDM FEDERAL PROGRAMS CORPORATION Robert D. Goltz, P.E. ARCS H Program Manager cc: M. R.Bilimoria, CDM Federal J. Litwin, CDM Federal Document Control File 7720-046 Table Of Contents TABLE OF CONTENTS CHEMSOL EMC. SUPERFUND SITE REMEDIAL INVESTIGATION REPORT Section Page 1.0 INTRODUCTION ................................................ 1-1 1.1 Purpose of Report ................................... 1-1 1.1.1 Overview of the Problem ............................... 1-2 1.2 Site Background ............................................ 1-2 1.2.1 Site Description ...................................... 1-3 1.2.2 Site History .......................................... 1-4 1.2.3 Previous Investigation .................................. 1-4 1.3 Report Organization ......................................... 1-9 2.0 STUDY AREA INVESTIGATIONS .................................. 2-1 2.1 Surface Features ............................................ 2-1 2.2 Contaminant Source Investigation .............................. 2-2 2.3 Meteorological Investigation ................................. 2-2 2.4 Air Quality Investigation ...................................... 2-3 2.5 Surface Water and Sediment Investigation ........................ 2-5 2.6 Geological Investigation ...................................... 2-8 2.6.1 Overburden .......................................... 2-9 2.6.2 Bedrock ............................................ 2-9 2.7 Soil and Vadose Zone Investigation ............................ 2-10 2.7.1 Soil Sampling ....................................... 2-10 2.8 Ground Water Investigation .................................. 2-12 2.8.1 Monitoring Well Installation ............................ 2-12 2.8.1.1 Overburden ................................. 2-13 2.8.1.2 Bedrock .................................... 2-15 2.8.2 Inspection/Rehabilitation ............................ 2-18 2.8.3 Abandonment ....................................... 2-20 284 Geophysical Logging ................................. 2-20 2.8.5 Packer Testing ...................................... 2-22 2.8.6 Pumping Test .................................... 2-24 2.8.7 Groundwater Sampling ................................ 2-24 2.8.8 Offsite Residential and Industrial Wells .................... 2-27 29 Human Population Surveys and Land Use Investigations ............ 2-28 2 10 Ecological Investigation ..................................... 2-28 3.0 PHYSICAL CHARACTERISTICS OF THE CHEMSOL SITE ....... 3.1 Topography .............................................. 3-1 3.2 Meteorology ............................................... 3-1 November 18. 1996 TABLE OF CONTENTS CHEMSOL INC. SUPERFUND SITE REMEDIAL INVESTIGATION REPORT 3.3 Air Quality ................................................ 3-1 3.4 Surface Water and Sediment ................................... 3-2 3.5 Geology .................................................. 3-4 3.5.1 Site Geology ......................................... 3-5 3.6 Hydrogeology ............................................. 3-7 3.6.1 Site Hydrogeology .................................... 3-8 3.6.1.1 Water Bearing Zones Identificaton ................. 3-8 3.6.1.2 Packer Testing Activities ....................... 3-11 3.6.1.3 Hydraulic Gradient ............................ 3-19 3.6.2 Hydraulic Connection Between the Chemsol Site and the Nova-Ukraine Section ................................ 3-26 3.6.3 Site Hydrogeology Conclusions ......................... 3-27 3.6.4 Current Site Remediation Activities ....................... 3-29 3.7 Soils .................................................... 3-29 3.8 Biota and Environmental Resources ............................ 3-32 39 Demographics and Land Use ................................. 3-38 4.0 NATURE AND EXTENT OF CONTAMINATION ...................... 4-1 4 1 Source of Contamination ..................................... 4-1 4.2 Air ...................................................... 4-2 4.3 Surface Water and Sediments .................................. 4-4 4.3 1 Sediment Sample Analyses .............................. 4-5 4.3.1.1 Volatile Organic Compounds ..................... 4-5 4.3 1 2 Semi-Volatile Organic Compounds ................. 4-6 4.3.1.3 Pesticides/PCB's .............................. 4-8 4.3.1.4 Metals/Cyanide ............................... 4-10 4.3.1.5 Total Organic Carbon ......................... 4-11 432 Surface Water Sample Analyses ........................ 4-11 4.3 2 1 Volatile Organic Compounds .................... 4-11 4.3.2.2 Semi-Volatile Organic Compounds ................ 4-13 4.3.2.3 Pesticides/PCB's ............................. 4-14 4.3.2.4 Metals/Cyanide ............................... 4-15 44 Soils .................................................... 4-17 4.4.1 Soil Cleanup Criteria .................................. 4-22 4.4.2 PCS Field Screening Results ............................ 4-24 4.4.3 TAL/TCL Analytical Results ........................... 4-25 4.4.3.1 TCL Pesticides/PCBs .......................... 4-25 4 4.3.2 TCL Volatile Organic Compounds ................ 4-26 4.4.3.3 TCL Semi-Volatile Organic Compounds ............ 4-26 4.4.3.4 Total TCL VOCs and TCL Organics .............. 4-27 4.4.3.5 TAL Inorganics .............................. 4-27 November 18. 1 TABLE OF CONTENTS CHEMSOL INC. SUPERFUND SITE REMEDIAL INVESTIGATION REPORT 4.4.4 TCLP Analytical Results .............................. 4-28 4.4.5 Summary of Soils Analyses ............................. 4-28 4.5 Ground Water ............................................ 4-28 4.5.1 Groundwater Contamination at the Site .................... 4-34 4.5.1.1 Volatile Organic Compounds .................... 4-35 4.5.1.2 Semi-Volatile Organic Compounds ................ 4-37 4.5.1.3 Pesticides/PCBs .............................. 4-38 4.5.1.4 Metals/Cyanide ............................... 4-38 4.5.1.5 Summary ................................... 4-40 4.5.2 Groundwater Contamination at the Nova-Ukraine Section . .... 4-41 4.6 Potential for Occurences of DNAPLs ........................... 4-42 5.0 CONTAMINANT FATE AND TRANSPORT .......................... 5-1 5.1 Factors Affecting Contamination Migration ....................... 5-1 5.1.1 Release Mechanisms ................................... 5-1 5.1.2 Transport Mechanisms ................................. 5-3 5.2 Potential Routes of Migration .................................. 5-6 5.3 Contaminant Persistene and Chemistry ........................... 5-7 6.0 BASELINE HUMAN HEALTH RISK ASSESSMENT ................... 6-1 6 1 Overview ......... ........................... 6-1 6.2 Background ............................................... 6-1 6.3 Scope of the Risk Assessment ........................... 6-3 6.4 Organization of the Risk Assessment ............................ 6-3 6.5 Hazard Identification .................................... 6-5 6.5.1 Summary of Sampling and Analysis Activities ................ 6-6 6.5.1.1 Soil .................................... 6-6 6.5.1.2 Air ......................................... 6-7 6.5.1 3 Ground Water .............................. 6-7 6.5.1 4 Surface Water ................................ 6-8 6515 Sediment ................................... 6-8 6.5.2 Results of Sampling and Analysis Activities .................. 6-9 6.5.2 1 Data Quality ............................... 6-9 6522 Chemicals Detected in Soil .................... 6-10 6523 Chemicals Detected in Air ..................... 6-14 6.5.2.4 Chemicals Detected in Ground Water .............. 6-14 6.5.2.5 Chemicals Detected in Surface Water .............. 6-15 6.5.2.6 Chemicals Detected in Sediment .................. 6-16 6.5.3