Presentation to the Restoration Advisory BoardPresentation 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 RangeLocus / OverviewCarr Point Shooting RangeLocus / 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 RangeOverview (continued)Carr Point Shooting RangeOverview (continued)

HistoryHistory

Carr Point Shooting RangeOverview (continued)Carr Point Shooting RangeOverview (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 RangeCurrent Conditions

Carr Point Shooting RangeCurrent ConditionsCarr Point Shooting RangeCurrent Conditions

Carr Point Shooting RangeCurrent ConditionsCarr Point Shooting RangeCurrent Conditions

CSMCSM

Carr Point Shooting RangePossible ConcernsCarr Point Shooting RangePossible 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 RangePossible ConcernsCarr Point Shooting RangePossible 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 RangeProposed SamplingCarr Point Shooting RangeProposed Sampling

Carr Point Shooting RangeProposed SamplingCarr Point Shooting RangeProposed Sampling

Carr Point Shooting RangeSite Investigation ProcessCarr Point Shooting RangeSite 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.