001910_EN17_03_05-B2349 Final Engineering Design Report for the Liberty Industrial Finishing Superfund Site Farmingdale, Nassau County New York February 2008 Prepared for: LIBERTY INDUSTRIAL SITE TRUST Prepared by: ECOLOGY AND ENVIRONMENT ENGINEERING, P.C. 368 Pleasant View Drive Lancaster, New York 14086 ©2007 Ecology and Environment Engineering, P.C. able of Contents T Section Page 1 Introduction..............................................................................1-1 1.1 Site Description................................................................................................ 1-1 1.2 Proposed Remedial Design .............................................................................. 1-2 1.3 Background Information .................................................................................. 1-5 1.3.1 Regulatory Requirements..................................................................... 1-6 1.3.2 Performance Standards......................................................................... 1-6 2 Existing Data ............................................................................2-1 2.1 Pre-Design Testing........................................................................................... 2-1 2.1.1 Plume Evaluation................................................................................. 2-1 2.1.2 Treatability ........................................................................................... 2-2 2.2 Existing O&M .................................................................................................. 2-2 2.3 Aquifer Data..................................................................................................... 2-2 3 Design Criteria .........................................................................3-1 3.1 Basis of Design................................................................................................. 3-1 3.2 Groundwater Modeling .................................................................................... 3-3 3.2.1 Model Results....................................................................................... 3-4 4 Design Elements......................................................................4-1 4.1 Extraction System ............................................................................................ 4-1 4.1.1 Groundwater Recovery (Extraction) Wells.......................................... 4-1 4.1.2 Pumping ............................................................................................... 4-2 4.1.3 Utilities ................................................................................................4-3 4.1.4 Pipe Conveyances ................................................................................ 4-3 4.2 Treatment System............................................................................................. 4-4 4.2.1 Estimated Influent Concentrations ....................................................... 4-5 4.2.2 Filtration ............................................................................................... 4-6 4.2.3 Organics ............................................................................................... 4-6 4.2.4 Process Control System........................................................................ 4-7 4.2.5 Miscellaneous Equipment .................................................................... 4-8 4.2.6 Treatment System Building.................................................................. 4-8 4.2.7 Treated Groundwater Discharge .......................................................... 4-8 4.3 Operation, Maintenance, and Monitoring ........................................................ 4-9 4.3.1 Existing GRS OM&M.......................................................................... 4-9 4.3.2 Upgraded GRS OM&M ....................................................................... 4-9 02:001910_EN17_03_05-B2349 iii R_Liberty Site Design Report Final.doc-03/17/08 Table of Contents (cont.) Section Page 4.4 Demolition...................................................................................................... 4-10 4.5 Permits............................................................................................................ 4-11 4.6 Institutional Controls...................................................................................... 4-12 4.7 Community Impacts ....................................................................................... 4-13 5 Design Documents ..................................................................5-1 5.1 Drawings .......................................................................................................... 5-1 5.1.1 Site Plan ................................................................................................5-1 5.1.2 Off-Site Groundwater Extraction Well Locations................................ 5-1 5.1.3 Treatment Building .............................................................................. 5-1 5.1.4 Process and Instrumentation Diagrams ................................................ 5-2 5.1.5 Electrical Design .................................................................................. 5-2 5.1.6 Utilities ................................................................................................5-2 5.1.7 On-Site Infiltration Gallery .................................................................. 5-2 5.2 Specifications ................................................................................................... 5-2 6 Schedule and Cost...................................................................6-1 6.1 Remedial Design Schedule............................................................................... 6-1 6.2 Cost Estimate....................................................................................................6-1 7 References ...............................................................................7-1 Appendix A 2007 Discharge Permit............................................................ A-1 B SPDES Permit Correspondence ............................................ B-1 C Design Memoranda................................................................. C-1 D Technical Specifications ........................................................ D-1 E Operation, Maintenance, and Monitoring Plan ......................E-1 02:001910_EN17_03_05-B2349 iv R_Liberty Site Design Report Final.doc-03/17/08 ist of Tables L Table Page 3-1 Current NCDPW Discharge Standards...................................................................... 3-1 3-2 New York State Groundwater Discharge Limits....................................................... 3-2 3-3 Groundwater Cleanup Performance Standards.......................................................... 3-3 4-1 Calculated Influent Concentrations............................................................................ 4-5 6-1 Project Costs.............................................................................................................. 6-1 02:001910_EN17_03_05-B2349 v R_Liberty Site Design Report Final.doc-03/17/08 ist of Figures L Figure Page 1-1 Project Location......................................................................................................... 1-3 6-1 Off-Site Groundwater Remedial Design Schedule.................................................... 6-3 02:001910_EN17_03_05-B2349 vii R_Liberty Site Design Report Final.doc-03/17/08 ist of Abbreviations and Acronyms L AMSL above mean sea level ARARs applicable or relevant and appropriate requirements bgs below ground surface CERCLA Comprehensive Environmental Response, Compensation, and Liability Act CERCLIS Comprehensive Environmental Response, Compensation, and Liability Information System CRI continued remedial investigation DCE dichloroethylene DR Dimension Ratio EDR Engineering Design Report EEEPC Ecology and Environment Engineering, P.C. EPA United States Environmental Protection Agency ft2 square feet FUSD Farmingdale Union-Free School District GAC granulated activated carbon gpd/ft2 gallons per day per square foot gpm gallons per minute GRS groundwater remediation system HDPE high-density polyethylene HVAC heating, ventilating, and air conditioning MA Magothy aquifer MCL maximum contaminant level 02:001910_EN17_03_05-B2349 ix R_Liberty Site Design Report Final.doc-03/17/08 List of Abbreviations and Acronyms (cont.) mg/L milligrams per liter µg/L micrograms per liter µm micrometers MTBE methyl tert-butyl ether NCDPW Nassau County Department of Public Works NPL National Priority List NYSDEC New York State Department of Environmental Conservation NYSOPRHP New York State Office of Parks, Recreation, and Historic Preservation O&M operations and maintenance OM&M operation, maintenance, and monitoring PCE tetrachloroethene/perchloroethylene PRP potentially responsible party psig pounds per square inch RA remedial action RD remedial design RDWP Remedial Design Work Plan RI/FS remedial investigation/feasibility study ROD Record of Decision SHPO State Historic Preservation Office SOW statement of work SPDES State Pollutant Discharge Elimination System s.u. standard unit TCA trichloroethane TCE trichloroethylene UGA upper glacial aquifer VOC volatile organic compound 02:001910_EN17_03_05-B2349 x R_Liberty Site Design Report Final.doc-03/17/08 1 Introduction Ecology and Environment Engineering, P.C. (EEEPC), on behalf of the Liberty Industrial Superfund Site Qualified