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M <br /> l <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. If <br /> contamination is documented during closure,an Unauthorized Release Notification must be completed and submitted within five(5) <br /> working days pursuant to California Health&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 /> Tri-Regional ReNmendations <br /> Appendix A <br /> BLE#2 RECOMMENDED MINIMUM VERIFICATION ANALYSES <br /> OR UNDERGROUND STORAGE TANK INVESTIGATIONS <br /> Tan BTEX VOCs Semi- Title <br /> Samples Conten Gasoline Diesel b b VOCs Oil& PCBs Total <br /> Required (Carbon by 8015M by 8021 B 82 0B by Grease by Lead by Metals <br /> Ran g or 82608 8015M or 111 8270C by 1664A 8082 7421 S <br /> 9 ) 82606 (2) ( ) <br /> Unknown <br /> nC4-C36uel X X ������ X <br /> Gasoline(C4-C20) C"_ � X�1t_� <br /> Diesel(C10-C36) X ®®���� <br /> Jet Fuel/Ker ) <br /> r ) 0������� <br /> C9-C200 <br /> Heating Oil(Cl 0- <br /> �� C32 C� X O�O����� <br /> Stoddard Solvent <br /> (C8-C20) ❑ ❑ <br /> Non-Chlorinated � ❑�❑�❑ <br /> Chlorinated <br /> Solvents X X <br /> Waste Oil or �X ����� <br /> Unknown Contents L-��� X X X X X <br /> Notes: <br /> 1. EPA Method 8260B analyses must include all analytes listed in the thod plus fue nates methyl-tertiary-butyl ether <br /> (MTBE),diisopropyl ether(DIPE),ethyl-tertiary-butyl ether(EtBE),tertia -amyl-methyl a er(TAME),tertiary-butanol(TBA), <br /> methanol and ethanol and fuel additives 1,2-dichloroethane(1,2-DCA)an ethylene dibromide(EDB or 1,2-dibromoethane). <br /> 2. If pentachlorophenol (PCP) is identified, analyze the soil and/or water sama for dioxins and furans by EPA Method 8290 <br /> and pesticides by EPA Method 8081A. <br /> 3. Method 60108 may be used for all the following metals, for which individual AA ethods are required: Antimony&Arsenic <br /> by 7062,Cadmium by 7131A, Lead by 7421, Mercury by 7471A, Nickel by 7521, elenium by 7742,and Thallium by 7841. <br /> 4. Non-proprietary,performance based analytical methods may be used with approval of Regional Board staff. <br /> Revised 8/8/06 <br /> 3 <br />