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The following represents minimum sampling criterion required for closure compliance. Soil samples collected shall be
<br />representative of native soils beneath the tank's invert (tank's bottom) at a collection depth not to exceed 2 - 4 feet. If
<br />contamination is documented during closure, an Unauthorized Release Notification must be completed and submitted within five (5)
<br />working days pursuant to California Health & Safety Code, Section 25295.
<br />16117-173103: 1111 4MJM0U*-j
<br />Notes:
<br />1. EPA Method 8260B analyses must include all analytes listed in the method plus fuel oxygenates methyl -tertiary -butyl ether
<br />(MTBE), diisopropyl ether (DIPS), ethylAer6ary-butyl ether (EtBE), tertiary -amyl -methyl ether (TAME), tertiary -butanol (TBA),
<br />methanol and ethanol and fuel additives 1,2-dichloroethane (1,2 -DCA) and ethylene dibromide (EDB or 1,2-dibnomoethane).
<br />2. If pentachlorophenol (PCP) is identified, analyze the soil and/or water sample for dioxins and furans by EPA Method 8290
<br />and pesticides by EPA Method 8081A
<br />3. Method 6010B may be used for all the following metals, for which individual AA methods are required: Antimony & Arsenic
<br />by 7062, Cadmium by 7131A. Lead by 7421, Mercury by 7471 A, Nickel by 7521, Selenium by 7742, and Thallium by 7841.
<br />4. Non-proprietary, performance based analytical methods may be used with approval of Regional Board staff.
<br />3
<br />DISPENSER SAMPLES 1 Sample beneath each di r
<br />PIPING SOIL SAMPLE 1 Sample eve lineal fleet
<br />DISPENSER & ING STOCKPILE SAMPLES 2 samP46S every 50 cubic yards
<br />Notes:
<br />1. EPA Method 8260B analyses must include all analytes listed in the method plus fuel oxygenates methyl -tertiary -butyl ether
<br />(MTBE), diisopropyl ether (DIPS), ethylAer6ary-butyl ether (EtBE), tertiary -amyl -methyl ether (TAME), tertiary -butanol (TBA),
<br />methanol and ethanol and fuel additives 1,2-dichloroethane (1,2 -DCA) and ethylene dibromide (EDB or 1,2-dibnomoethane).
<br />2. If pentachlorophenol (PCP) is identified, analyze the soil and/or water sample for dioxins and furans by EPA Method 8290
<br />and pesticides by EPA Method 8081A
<br />3. Method 6010B may be used for all the following metals, for which individual AA methods are required: Antimony & Arsenic
<br />by 7062, Cadmium by 7131A. Lead by 7421, Mercury by 7471 A, Nickel by 7521, Selenium by 7742, and Thallium by 7841.
<br />4. Non-proprietary, performance based analytical methods may be used with approval of Regional Board staff.
<br />3
<br />Tri -Regional Recommendations
<br />Appendix A
<br />TABLE #2 RECOMMENDED MINIMUM VERIFICATION ANALYSES
<br />FOR UNDERGROUND STORAGE TANK INVESTIGATIONS
<br />Tank
<br />Gasoline
<br />Diesel
<br />BTEX
<br />VOCs
<br />Semi -
<br />VOCs Oil & PCBs
<br />Total
<br />Title
<br />Samples
<br />Contents by 8015M
<br />by
<br />by
<br />by
<br />by Grease by
<br />Lead by
<br />Metals
<br />Required
<br />(Carbon or 8260B
<br />8015M
<br />60216
<br />8260E
<br />82700 by 1664A 8082
<br />7421
<br />(3)
<br />Range)
<br />82608
<br />(1)
<br />(2)
<br />Unknown Fuel X
<br />X
<br />X
<br />X
<br />C4 -C36
<br />Gasoline (C4 -C20) X
<br />X
<br />X
<br />Diesel (C10 -C36)
<br />X
<br />X
<br />X
<br />Jet FueWerosene
<br />X
<br />X
<br />Cg -C20
<br />Heating Oil (C10-
<br />X
<br />X
<br />C32
<br />Stoddard Solvent
<br />(C8 -C20)
<br />X
<br />X
<br />Non - Chlorinated
<br />Chlorinated
<br />X
<br />X
<br />Solvents
<br />Waste Oil or XX
<br />:j:]d
<br />X X X
<br />X
<br />Unknown Contents
<br />Notes:
<br />1. EPA Method 8260B analyses must include all analytes listed in the method plus fuel oxygenates methyl -tertiary -butyl ether
<br />(MTBE), diisopropyl ether (DIPS), ethylAer6ary-butyl ether (EtBE), tertiary -amyl -methyl ether (TAME), tertiary -butanol (TBA),
<br />methanol and ethanol and fuel additives 1,2-dichloroethane (1,2 -DCA) and ethylene dibromide (EDB or 1,2-dibnomoethane).
<br />2. If pentachlorophenol (PCP) is identified, analyze the soil and/or water sample for dioxins and furans by EPA Method 8290
<br />and pesticides by EPA Method 8081A
<br />3. Method 6010B may be used for all the following metals, for which individual AA methods are required: Antimony & Arsenic
<br />by 7062, Cadmium by 7131A. Lead by 7421, Mercury by 7471 A, Nickel by 7521, Selenium by 7742, and Thallium by 7841.
<br />4. Non-proprietary, performance based analytical methods may be used with approval of Regional Board staff.
<br />3
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