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3Q cy s a� <br /> Addendum <br /> SANJ O A Q U I N Environmental Health Department <br /> 11 _CQUN-fY <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 i Sample every 20 lineal feet <br /> DfBPtNS£R PIPING TOCKPILE 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 VOCsi11 Semi- oil& PCB Total Title 22 <br /> # CONTENTS VOCsf21 Grease Lead Metals(3) <br /> 8015M 80218 8260B 8082 7421 <br /> 82608 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 /> (C10—C36) <br /> Jet FuellKerosene 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 <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 meihybtertlary-butyl ether <br /> (MTBE),dlisopropyl ether(RIPE),ethyl-tertiary-butyl ether(ELBE),tertiary-amyl-methyl ether(TAME),tediary-butanol <br /> (TBA),methanol and ethanol and fuel additives 1,2-dlchloroelhane(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 lurans by EPA Method 8290 <br /> and pesticides by EPA Method 8081A. <br /> 3. Title 22 Metals:Method 60106 may be used for all but the following metals,for which individual AA methods are required: <br /> Antimony&Arsenic by 7062,Cadmium by 7131 A,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 />