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I t <br /> 6 s P <br /> A " ( I ( ( ( I Envirtnrt of �f4ealthV6p6rtrnent 5 <br /> COUNTY - - (VAN e �) <br /> SAMPLING PROTOCOL FOR ROUTINE PIPING/DISPENSER REMOVAL/REPLACE FNEN i <br /> t5 <br /> The following represents minimum sampling criterion required for closure compliance. i p [ask opkl0�cityd- ahatt be l"" <br /> representative of native soils beneath the tank's invert (tank's bottom) at a collection depth not to sinal& 2` 1 `4 `feet. <br /> Samples cannot be combined into a composite sample for analysis in the field or the lab. Each sample must <br /> have a set of corresponding analytical results. If contamination is documented during closure, an Unauthorized <br /> Release Notification must be completed and submitted within five (5) working days pursuant to California Health & <br /> Safety Code , Section 25295. <br /> DISPENSER PIPING AND STOCKPILE SAMPLES <br /> DISPENSER SAMPLES 1 Sample beneath each dispenser <br /> PIPING SOIL SAMPLES 1 Sample every 20 lineal feet <br /> DISPENSER & PIPING STOCKPILE SAMPLES 2 Samples every 50 cubic yards <br /> TABLE #2 RECOMMENDED MINIMUM VERIFICATION ANALYSES <br /> FOR UNDERGROUND STORAGE TANK INVESTIGATIONS <br /> TANK TANK Gasoline Diesel BTEX VOCs(') Semi- oil & PCB Total Title 22 <br /> # CONTENTS VOCst2) Grease Lead Metals(') <br /> 8015M 80218 82608 8082 7421 <br /> X 82608 X 8015M 82608 8270C 1664A <br /> Unknown Fuel X X X X <br /> (C4-C36) <br /> Gasoline X X X <br /> (C4-C20) <br /> Diesel X X X <br /> (C10—C36) <br /> Jet Fuel/Kerosene X X <br /> (C9-C20) <br /> Heating Oil X X <br /> (C10-C32) <br /> Stoddard Solvent <br /> (non-chlorinated) X X <br /> C8-C20 <br /> Chlorinated X X <br /> Solvents <br /> Waste Oil or X X X X X X X <br /> Unknown Contents <br /> Notes: <br /> 1 . EPA Method 82608 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 <br /> (TBA) , methanol and ethanol and fuel additives 1 ,2-dichloroethane (1 ,2-DCA) and ethylene dibromide (EDB or 1 ,2- <br /> 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 /> 1 Title 22 Metals: Method 6010B may be used for all but the following metals, for which Individual AA methods are required: <br /> Antimony & Arsenic by 7062, Cadmium by 7131A, Lead by 7421 , Mercury by 7471 A, Nickel by 7521 , Selenium by 7742 , and <br /> Thallium by 7841 . <br /> 4 . Non-proprietary, performance based analytical methods may be used with approval of Regional Board staff. <br /> 5of6 <br />