moffett rab: petroleum program update, november 13, 2008
DESCRIPTION
Presentation by Wilson Doctor of the Navy.TRANSCRIPT
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Petroleum Program UpdateFormer Naval Air Station Moffett Field
November 13, 2008RAB Meeting
Wilson DoctorNavy Project Manager
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OverviewOverview
• Background
• Closures
• Current Projects
• Upcoming Projects
• Summary
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BackgroundBackground
• Navy removed tanks
• Water Board lead agency
• Environmental Screening Levels (ESLs)– Screening for Environmental Concerns at Sites with
Contaminated Soil and Groundwater, California Regional Water Quality Control Board San Francisco Bay Region
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Closure or NFAClosure or NFA
• Closure for petroleum underground storage tanks (USTs)
• “No Further Action” (NFA) for petroleum above-ground storage tanks (ASTs), pipelines, etc.
• Conditional upon additional information
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Additional Fuel System Components at Additional Fuel System Components at Building 29Building 29
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Additional Fuel System Components at Additional Fuel System Components at Building 29Building 29
• No Further Action letter 5/27/08
• Final ‘Additional Fuel System Components at Building 29 Completion Report and Request for Closure’ 6/26/08
• Two inactive pipelines associated with Building 29– Metal; inactive since 1960s– 8-inch diameter, 3,640 feet long– 3-inch diameter, 4,880 feet long
• Soil sampling every 50 feet
• Sampling results were below action levels
• Fieldwork completed in NOV 2007
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USTs 121 & 122USTs 121 & 122
• USTs 121 & 122 closure letter 9/2/08
• UST 121 – 250 gal., diesel, removed 1987
• UST 122 – 500 gal., gasoline, removed 1987
• Soil and groundwater sampling results presented low risk
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ASTsASTs 100, 101, 129, 132 and 133 100, 101, 129, 132 and 133
• NFA letter former ASTs 100, 101, 129, 132, and 133 dated 9/9/08
• “Phase III Basewide Tank Closure Report, No Further Action”
• Soil and groundwater sampling results below ESLs
• AST 100 – 200 gal., removed 1992, diesel
• AST 101 – 200 gal., removed unknown, diesel
• AST 129 – 18 gal., removed 1994, diesel
• AST 132 & 133 – removed 1994, 125 gal. each, hydraulic fluid
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AST 52AST 52
• Former AST 52 NFA letter 10/28/08
• “Phase III Basewide Tank Closure Report, No Further Action”
• Removed 1950s
• 25,000 gal., lubricating oil
• Soil sampling results below action levels
• Petroleum in groundwater not detected
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ASTsASTs 103 and 104103 and 104
• ASTs 103 and 104 NFA 11/4/08
• “Phase III Basewide Tank Closure Report, No Further Action”
• AST 103, removed 1994, 350 gal., diesel– No evidence of leak
• AST 104, removed 1994, 190 gal., diesel– Leak not visible– Soil samples below ESLs– Petroleum constituents not detected in groundwater
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Current ProjectsCurrent Projects
• Former Aircraft Wash Rack
• Site 5 Channel Deposit
• Building 29 and Building 55 Pipelines
• Building 55 Sump
• Site 14
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Former Aircraft Wash RackFormer Aircraft Wash Rack
• Draft “Investigation Report for Former Aircraft Wash Rack” dated 10/10/08
• Former concrete pad with drain for washing aircraft
• Soil and groundwater sampling
• Recommend NFA; sampling results show low risk
• Next step: Resolve comments
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Site 5 Channel DepositSite 5 Channel Deposit
• Draft “Site 5 Channel Deposit Investigation Report”dated 10/20/08
• Groundwater sampling of sand channel deposit
• Site 5 tanks formerly used to store fuel
• Recommend no further action for groundwater in channel deposit; low risk
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Building 29 and Building 55 PipelinesBuilding 29 and Building 55 Pipelines
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Building 29 and Building 55 PipelinesBuilding 29 and Building 55 Pipelines
• Final “Investigation and Closure Report for Building 29 and Building 55 Pipelines” dated 11/5/08
• Soil sampling along inactive pipelines
• Building 29 pipelines– Aviation gasoline– Inactive since 1950s– 900 ft, 2-inch and 3-inch diameter, metal
• Building 55 pipeline– Boiler fuel– Inactive since at least 1994– 1400 ft, 3-inch diameter, metal
• Recommend closure
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Building 55 SumpBuilding 55 Sump
• Building 55 sump
• Sump installed during the Building 55 pipeline investigation in 2005
• Work Plan FEB 2008– Removed sump, soil sampling, and groundwater
monitoring
• Preparing draft report
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Building 55 SumpBuilding 55 Sump
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Site 14Site 14
• Final Work Plan February 2008– Site characterization
– Installed 7 additional groundwater monitoring wells
– Four quarters groundwater sampling• New wells and 9 existing wells
• Complete monitoring and evaluate data
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Site 14Site 14
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Upcoming ProjectsUpcoming Projects
• Petroleum site characterization/sampling:
• Site 20 – soil and groundwater sampling
• Former Navy Exchange gas station – soil sampling
• ASTs 94, 95, 118– Removed/left in place early 90’s– 500 to 1,000 gal., gasoline– Soil and groundwater sampling
• AST 102 soil sampling– Removed 1994, 55 gal., diesel– Soil sampling
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Upcoming ProjectsUpcoming Projects
• Site 5 ‘dry wells’ soil sampling
• USTs 85 and 85A– Removed 1995– 1,000 gal., aviation gasoline– Groundwater sampling
• Tank 25A– Removed 1994, oil-water separator– Clarify site description
• UST 58– Removed 1994– 300 gal., oily water– Soil and groundwater sampling
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SummarySummary
• Moffett Field Petroleum Program
– Background
– Closures
– Current Projects
– Upcoming Projects