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SANs] OA Q U I N Environmental Health Department #' <br /> — COUNTY- JAN23Z018 <br /> SAMPLING PROTOCOL FOR ROUTINE PIPING/DISPENSER REMOVALA9 <br /> The following represents minimum sampling criterion required for closure compliance. Soil samples ol�ir'ceawdl1 eN;TEA/ rH <br /> representative of native soils beneath the tank's invert (tank's bottom) at a collection depth not to exceed 2 - 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 72Samples <br /> le beneath each dispenser <br /> PIPING SOIL SAMPLES ple every 20 lineal feet <br /> DISPENSER & PIPING STOCKPILE SAMPLES every 50 cubic yards <br /> TABLE #2 RECOMMENDED MINIMUM VERIFICATION ANALYSES <br /> FOR UNDERGROUND STORAGE TANK INVESTIGATIONS <br /> F <br /> Gasoline Diesel BTEX VOCs0) Semi- oil & PCB Total Title 22 <br /> S VOCs(2) Grease Lead Metals(') <br /> ao1sM 80216 82608 8082 7421 <br /> 82606 8015M 82606 8270C 1664Ael X XX X <br /> XX <br /> Diesel X X X <br /> (C10—C36) <br /> Jet Fuel/Kerosene X X <br /> (C9C20) <br /> Heating Oil X X <br /> (C70-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 8260B analyses must include all analytes listed in the method plus fuel oxygenates methyl-tertlary-bulyl 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 /> 3. Title 22 Metals: Method 60108 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 7471A, 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 /> 5 Of <br />