Presentation to the Restoration Advisory Board Plan for Site Investigation: Munitions Response Program (MRP) Site 1 Carr Point Shooting Range March 18, 2009 Plan for Site Investigation: Munitions Response Program (MRP) Site 1 Carr Point Shooting Range March 18, 2009

Carr Point Shooting Range Locus / Overview  7 Acres of property Shotgun (skeet) shooting range Drum storage area Fill Area Materials storage area Downgradient of Tank Farm 4  7 Acres of property Shotgun (skeet) shooting range Drum storage area Fill Area Materials storage area Downgradient of Tank Farm 4

Carr Point Shooting Range Overview (continued)  History

Carr Point Shooting Range Overview (continued)  Property appears residential/agricultural in 1939  Land taken in the 1940s  Skeet Range used from 1967 to 1989 Targets launched over the water Shotgun rounds used to break targets  Fill placed to level the area when developed Fill evident on air photo from 1962  Storage area used between 1960s through recent years  Parking areas currently used  Property appears residential/agricultural in 1939  Land taken in the 1940s  Skeet Range used from 1967 to 1989 Targets launched over the water Shotgun rounds used to break targets  Fill placed to level the area when developed Fill evident on air photo from 1962  Storage area used between 1960s through recent years  Parking areas currently used

Carr Point Shooting Range Current Conditions

CSM

Carr Point Shooting Range Possible Concerns  Munitions Constituents (MC) – Expected Shotgun pellets, toxic to waterfowl  Munitions Explosive Constituents (MEC) – Not expected  Propellents from firing shells (dinitrotoluene, nitroglycerine etc)  Chemical contaminants From fill From storage From targets and spent ammunition  Munitions Constituents (MC) – Expected Shotgun pellets, toxic to waterfowl  Munitions Explosive Constituents (MEC) – Not expected  Propellents from firing shells (dinitrotoluene, nitroglycerine etc)  Chemical contaminants From fill From storage From targets and spent ammunition

 Contaminants Expected: Metals: Lead Antimony Copper Tin Zinc Iron PAHs From skeet (clay pigeons) From stored oil and oil drums Possible others from storage area and fill areas  Contaminants Expected: Metals: Lead Antimony Copper Tin Zinc Iron PAHs From skeet (clay pigeons) From stored oil and oil drums Possible others from storage area and fill areas Carr Point Shooting Range Possible Concerns

 44 Sediment Samples 20 offshore locations, two depth intervals to be sampled 2 outfall discharge locations, two depth intervals Offshore sediments analyzed for PAHs, metals, and presence of shot pellets Outfall sediments analyzed for organics and inorganics  10 Soil borings, Advanced through fill and soil to top of bedrock Soil samples collected throughout the depth and screened for contaminants Four soil samples collected from each boring for laboratory analysis  8 Borings finished as monitoring wells 1 Groundwater sample collected from each well  Multi increment soil samples Three former firing points Analysis for energetic compounds and SVOCs  44 Sediment Samples 20 offshore locations, two depth intervals to be sampled 2 outfall discharge locations, two depth intervals Offshore sediments analyzed for PAHs, metals, and presence of shot pellets Outfall sediments analyzed for organics and inorganics  10 Soil borings, Advanced through fill and soil to top of bedrock Soil samples collected throughout the depth and screened for contaminants Four soil samples collected from each boring for laboratory analysis  8 Borings finished as monitoring wells 1 Groundwater sample collected from each well  Multi increment soil samples Three former firing points Analysis for energetic compounds and SVOCs Carr Point Shooting Range Proposed Sampling

Carr Point Shooting Range Site Investigation Process  Currently in comment resolution phase  Finalize work plan in spring  Conduct field work in spring 2009  Report data late 2009  Determine if further efforts are needed based on contaminants or MC found.  Currently in comment resolution phase  Finalize work plan in spring  Conduct field work in spring 2009  Report data late 2009  Determine if further efforts are needed based on contaminants or MC found.