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SANJ <br /> OAQU <br /> I Environmental Health Department <br /> COUNTY, <br /> SAMPLING <br /> 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. <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(l) Semi- oil & PCB Total Title 22 <br /> # CONTENTS VOCs(z) Grease Lead Metals)s) <br /> 8015M 80218 62608 8082 7421 ' <br /> 8260B 8016M 82606 8270C 1664A <br /> Unknown Fuel X X X X <br /> (C4-C36) ',. <br /> Gasoline X X X <br /> (C4-C20) 'I. <br /> Diesel <br /> (C10—C36) X X X ,'...,.. <br /> Jam.. <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 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-tertlary-butyl ether <br /> (MTBE), diisopropyl ether (DIPE), ethyl-tertiary-butyl ether (E(BE), terflary-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 andfor water sample for dioxins and furans by EPA Method 8290 j <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 />