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Addendum SR0083263 <br /> SANJ ClU U I NEnvironmental Health De,partniont <br /> AMENDMENT (2) 6/10/2021 34243 Chrisman Rd Tracy, CA 95304 <br /> C O U N T Y SR0083263 <br /> SAMPLING PROTOCOL FOR ROUTINE PIPINGIDISPENSER REMOVAL/REPLACEIVIENT <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 /> LLJDISPENSER&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 VOW ) Semi- oil& PCB Total Title 22. <br /> # CONTENTS VOCs(2) Grease Lead Metals(3) <br /> 8015M 8021B 8260B 8082 7421 <br /> 8260B 8015M 8260B 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 /> X (C10—C36) <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 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 <br /> (TBA),methanol and ethanol and fuel additives 1,2-dichloroeihane(1,2-DCA)and ethylene dibromide(EDB or 1,2- <br /> d1bromoethane). <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 /> 5of6 <br />