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1 <br /> J 1 ' <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 Recommendations <br /> Appendix A <br /> TABLE #2 RECOMMENDED MINIMUM VERIFICATION ANALYSES <br /> FOR UNDERGROUND STORAGE TANK INVESTIGATIONS <br /> Tank BTEX VOCs Sernk Title <br /> Samples Contents Gasoline Diesel b b VOCs Oil& PCBs Total <br /> Required (Carbon by 8015M by 80218 82606 by Grease by Lead by 22 <br /> Met <br /> Ran a or8260B 8015M or (1) 8270C by1664A 8082 7421 ( <br /> 9 8260B (2) <br /> Unknown Fuel , � X F <br /> (C4-C36 �^J ���1 X <br /> Gasoline(C4-C20) (� _._I <br /> tL�J�� <br /> __1LXX__1 <br /> 1 11 Diesel(C10-C36) F x X X <br /> Jet FC9 C20)ene � X �����L—��� <br /> HeatingOil(C10- <br /> 32) <br /> Stoddard Solvent <br /> ❑ <br /> (C8 C20) X ❑❑�❑�❑ <br /> NC ❑ <br /> on- hlorinated <br /> Chlorinated E FTF <br /> Solvents <br /> UnknWaste Oil or <br /> own Contents =E� ]= EKIEEIEKI = <br /> Notes: <br /> 1. EPA Method 82606 analyses must include all analytes listed in the method plus fuel oxygenates methyl-tertiary-butyl ether <br /> (MTBE), diiscpropyl ether(DIPE), ethyl-tertiary-butyl ether(EtBE),tertiary-amyl-methyl ether(TAME),tertiary-butanol(TBA), <br /> methanol and ethanol and fuel additives 1,2-dichloroethane(1,2-DCA)and ethylene dibromide(EDB or 1,2-dibromoethane). <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. Method 60106 may be used for all the following metals, for which individual AA methods are required: Antimony&Arsenic <br /> by 7062, Cadmium by 7131A, Lead by 7421, Mercury by 7471A, Nickel by 7521, Selenium 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 />