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SAMPLING PROTOCOL FOR ROUTINE PIPING/DISPENSER REMOVAL/REPLACEMENT <br />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 />DISPENSER PIPING AND STOCKPILE SAMPLES <br />Tri -Regional Recommendations <br />Appendix A <br />TABLE #2 RECOMMENDED MINIMUM VERIFICATION ANALYSES <br />FOR UNDERGROUND STORAGE TANK INVESTIGATIONS <br />Tanksemi- <br />BTEX VOCs Title <br />by by <br />Gasoline Diesel VOCs Oil & PCBs Total <br />Samples Contents by 8015M by by Grease by Lead by 22 <br />Required (Carbon 8021B 82608 Metals <br />8Rant g or 8260B 8015M or (1) (2,C by 1664A 8082 7421 (3) <br />Range) 8260B <br />Unknown Fuel X X X X <br />C4 -C36 <br />Gasoline (C4 -C20) X X X <br />Diesel (C10 -C36) X X X <br />Jet Fuel/Kerosene X X <br />C9 -C20 <br />Heating Oil (C10- X <br />C32 <br />D DO <br />Stoddard Solvent <br />(C8 -C20) X X <br />Pion -Chlorinated <br />Chlorinated X X <br />Solvents <br />Waste Oil or nts X X X X X X X <br />Unknown Conte <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 (DIPE), ethyl -tertiary -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-dibromoethane). <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 7471A, 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 />Revised 8/3/07 <br />3 <br />DISPENSER SAMPLES <br />1 Sample beneath each dispenser <br />PIPING SOIL SAMPLES <br />1 Sample every 20 lineal feet <br />DISPENSER & PIPING STOCKPILE SAMPLES <br />2 Samples every 50 cubic yards <br />Tri -Regional Recommendations <br />Appendix A <br />TABLE #2 RECOMMENDED MINIMUM VERIFICATION ANALYSES <br />FOR UNDERGROUND STORAGE TANK INVESTIGATIONS <br />Tanksemi- <br />BTEX VOCs Title <br />by by <br />Gasoline Diesel VOCs Oil & PCBs Total <br />Samples Contents by 8015M by by Grease by Lead by 22 <br />Required (Carbon 8021B 82608 Metals <br />8Rant g or 8260B 8015M or (1) (2,C by 1664A 8082 7421 (3) <br />Range) 8260B <br />Unknown Fuel X X X X <br />C4 -C36 <br />Gasoline (C4 -C20) X X X <br />Diesel (C10 -C36) X X X <br />Jet Fuel/Kerosene X X <br />C9 -C20 <br />Heating Oil (C10- X <br />C32 <br />D DO <br />Stoddard Solvent <br />(C8 -C20) X X <br />Pion -Chlorinated <br />Chlorinated X X <br />Solvents <br />Waste Oil or nts X X X X X X X <br />Unknown Conte <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 (DIPE), ethyl -tertiary -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-dibromoethane). <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 7471A, 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 />Revised 8/3/07 <br />3 <br />