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O (� ' i ( Environmental Health Department <br /> „ _- COUNTY- <br /> SAMPLING P\nativeoils <br /> OL FOR ROUTINE PIPING/DISPENSER REMOVAL/REPLACEMENT <br /> The following rminimum sampling criterion required for closure compliance . Soil samples collected shall be <br /> representative oils beneath the tank's invert (tank's bottom) at a collection depth not to exceed 2 - 4 feet. <br /> Samples cannined into a composite sample for analysis in the field or the lab. Each sample must <br /> have a set of g analytical results . If contamination is documented during closure , an Unauthorized <br /> Release Notifit be completed and submitted within five (5) working days pursuant to California Health & <br /> Safety Code , S5 .ISPE SER PIPING AND STOCKPILE SAMPLES <br /> DISPENSER SAMPLE 1 Sample beneath each dispenser <br /> PIPING SOIL SAMPLES 1 Sample every 20 lineal feet <br /> DISPENSER & PIPING STOC PILE SAMPLES 2 Samples every 50 cubic yards <br /> TABLE #2 RECOMMENDEDINIMUM VERIFICATION ANALYSES <br /> FOR UNDERGROUND ST AGE TANK INVESTIGATIONS <br /> TANK TANK Gasoline Diesel BTEX V0Cs0 ) Semi - Oil & PCB Total Title 22 <br /> # CONTENTS VOCs(�) Grease Lead Metals(3) <br /> 80218 8082 <br /> 606 7421 <br /> 82606 8015M 82608 8270C 1664A <br /> Unknown Fuel <br /> (C4-C36 ) X X X X <br /> Gasoline <br /> (C4-C20) X X X <br /> Diesel <br /> (C10—C36) X X X <br /> Jet Fuel/Kerosene <br /> (C9-C20) X X <br /> Heating Oil <br /> (C10-C32 ) X X <br /> Stoddard Solvent <br /> (non-chlorinated ) X X <br /> C8-C20 <br /> Chlorinated <br /> Solvents X X <br /> Waste Oil or <br /> Unknown Contents X X X X X X <br /> Notes: <br /> 1 . EPA Method 8260B analyses must include all analytes listed in the method plus fuel oxygenates m\Selenium <br /> ry-butyl ether <br /> (MTBE) , diisopropyl ether ( DIPE), ethyl-tertiary-butyl ether ( EtBE), tertiary-amyl-methyl ether (TAMbutanol <br /> (TBA), methanol and ethanol and fuel additives 1 ,24chloroethane (1 ,2-DCA) and ethylene dibromr 1 ,2- <br /> dibromoethane) . <br /> 2 . If pentachlorophenol (PCP) is identified , analyze the soil and/or water sample for dioxins and furanethod 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 Are equired: <br /> Antimony & Arsenic by 7062 , Cadmium by 7131A, Lead by 7421 , Mercury by 7471A, Nickel by 75b 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 6 <br />