REMEDIAL ACTION WORK PLAN For the 75-20 ASTORIA BOULEVARD SITE JACKSON HEIGHTS, QUEENS, NEW YORK VCA NO.: W2-0854-9906 CONSULTANT PROJECT NO.: 821687 January 30, 2008 Prepared for: Bulova Corporation Prepared by: Shaw Environmental and Infrastructure, Inc. 101-1 Colin Drive Holbrook, New York 11741 Phone: 631-472-4000 x234 Fax: 631-472-4077 Erik Gustafson, Client Program Manager SHAW ENVIRONMENTAL AND INFRASTRUCTURE 821687 TABLE OF CONTENTS CERTIFICATIONS.....................................................................................................................................................................1 EXECUTIVE SUMMARY.........................................................................................................................................................2 1.0 INTRODUCTION......................................................................................................................................................7 1.1 PURPOSE AND ORGANIZATION OF WORK PLAN......................................................................................................7 1.2 SITE LOCATION.........................................................................................................................................................7 1.3 SITE HISTORY ...........................................................................................................................................................8 1.4 SITE GEOLOGY .........................................................................................................................................................8 2.0 SITE CHARACTERIZATION ACTIVITIES......................................................................................................9 2.1 PREVIOUS (THROUGH 2001) REMEDIAL INVESTIGATIONS .....................................................................................9 2.1.1 MAC Consultants Investigations........................................................................................................................9 2.1.2 Groundwater Technology Investigation ............................................................................................................9 2.1.3 Fluor Daniel GTI Investigation........................................................................................................................10 2.1.4 IT Corporation Investigation............................................................................................................................10 2.2 RECENT SITE INVESTIGATIONS (2002 TO 2006)....................................................................................................11 2.2.1 Soil and Groundwater Sampling......................................................................................................................12 2.2.2 Soil and Groundwater Sampling Results .........................................................................................................14 2.2.2.1 Soil ..............................................................................................................................................................................14 2.2.2.2 Groundwater ...............................................................................................................................................................14 2.2.3 Hydrogeologic Evaluation & Contaminant Transport ...................................................................................15 3.0 REMEDIAL ACTION SELECTION (RAS).......................................................................................................18 3.1 TECHNOLOGY SCREENING .....................................................................................................................................19 3.2 LABORATORY TREATABILITY STUDIES.................................................................................................................20 3.2.1 Biostimulation Treatment Options for TCA and DCA ....................................................................................20 3.2.2 Chemical Oxidation Treatment Options for TCA and DCA...........................................................................21 3.2.3 Implementation of Treatability Studies ............................................................................................................22 3.2.4 Conclusions Derived from the Treatability Studies.........................................................................................22 3.3 ANAEROBIC BIOSTIMULATION PILOT TEST...........................................................................................................23 3.3.1 Anaerobic Biostimulation Pilot Test Objectives..............................................................................................23 3.3.2 Test Plot Layout ................................................................................................................................................24 3.3.3 Baseline Groundwater Monitoring ..................................................................................................................25 3.3.4 Pilot Test Implementation Procedures.............................................................................................................26 3.3.5 Results................................................................................................................................................................27 3.3.6 Data Evaluation ................................................................................................................................................29 3.3.7 Conclusions Derived from the Pilot Test.........................................................................................................30 3.4 COMPARISON OF ANAEROBIC BIOSTIMULATION TO RAOS..................................................................................31 4.0 REMEDIAL ACTION SCOPE OF WORK........................................................................................................33 4.1 FULL-SCALE AREA.................................................................................................................................................33 4.2 FULL-SCALE WELL NETWORK ..............................................................................................................................33 4.3 FULL SCALE CONCEPTUAL SYSTEM DESIGN ........................................................................................................34 4.4 FULL-SCALE MONITORING.....................................................................................................................................35 4.4.1 System Monitoring ............................................................................................................................................35 SHAW ENVIRONMENTAL AND INFRASTRUCTURE 821687 REMEDIAL ACTION WORK PLAN 75-20 ASTORIA BOULEVARD SITE JACKSON HEIGHTS, QUEENS, NEW YORK 4.4.2 Groundwater Monitoring .................................................................................................................................36 4.4.2.1 Baseline Groundwater Sampling ...............................................................................................................................36 4.4.2.2 Full-scale Groundwater Monitoring ..........................................................................................................................36 4.4.3 Air Quality Monitoring .....................................................................................................................................37 4.4.3.1 Sub-Slab Sampling.....................................................................................................................................................37 4.4.3.2 Indoor Air Sampling...................................................................................................................................................38 4.4.3.3 Outdoor Air Sampling................................................................................................................................................38 4.4.4 Soil Monitoring .................................................................................................................................................39 4.5 ACHIEVEMENT OF REMEDIAL GOALS....................................................................................................................39 5.0 SCHEDULE..............................................................................................................................................................40 5.1 REMEDY IMPLEMENTATION SCHEDULE ................................................................................................................40 5.2 POST-REMEDY IMPLEMENTATION SCHEDULE ......................................................................................................40 5.3 CONTINGENCY........................................................................................................................................................40 6.0 REMEDIAL ACTION PROGRAM .....................................................................................................................41 6.1 GOVERNING DOCUMENTS......................................................................................................................................41 6.1.1 Site Specific Health & Safety Plan (HASP) .....................................................................................................41