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09/19/2006 09:16 2094663433 E i' PAGE 04 <br /> SAMPLING PROTOCOL FOR ROUTINE PIPING/D'SPENSER REMOVAI./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 fiw(5) <br /> working days pursuant to California Health&Safety Code, Section 25295, <br /> DISPENSER PIPING AND STOCKPILE SAMPLES <br /> i - -- — <br /> DISPENSER SAMPLES 1 Sample beneath each dispenser <br /> PIPING SOlL SAMPLES 1 Sample every 20 lineal feet <br /> DISPENSER& PIPING STOCKPILE SAMPLES 2 Samples every 54 cubic yards <br /> Tri-Regional Recommendations <br /> Appendix A <br /> TABLE#2 RECOMMFNIDED MINIMUM VERIFICATION ANAt.YSES <br /> FOR UNDERGROUND STORAGE TANK INVESTIGATIONS <br /> Tank --I -- BTEX VOCs Srml• ^� i Title <br /> Gasoline Olesai VOCs 011& PCes Tout <br /> 22 <br /> Samples Contents by b <br /> by 8016M by y by areaw by Lead by Metals <br /> Required (carbon I 50216 6zsoa <br /> Range) or a26o0 8095Mor O 8270C b 7664A 80b2 742t (3) <br /> 8 ) —J 82608 1 {2) y <br /> �J <br /> Unknown fuer <br /> ohne(Ca-C20) X X X.+ ' <br /> �_— Diesei(C10.C36) _ X X X <br /> Jet F Cg-C20 ene _ X X <br /> Heating Oil(C10. <br /> C322) X <br /> IL <br /> rsolventfie <br /> Stoard solvent <br /> --- <br /> (ca c2o) x X I , <br /> Non Chlorinated <br /> � <br /> C <br /> Chlonnated Solvents X X � --� <br /> r V:asie Oil dr <br /> L� <br /> Unknown Contents X X- - X X X _X _I X �q <br /> Nates'. <br /> 1. EPA Method 92606 analyses must include all analytes listed in the method plus fuel oxygenates methyl-tertiary-b;rtyl ether <br /> (MTBE),dilsopropyt ether(DIPS), ethyl-tertiary-butyl ether(EtSE),tertiary-amyl-methyl ether(TAME), tertiary-butanol(TBA), <br /> methanol end ethanol and fuel additives 1,24,01toroathane(1,2-DCA)and ethylene dibromide(EDB or 1,2-dihromoethane). <br /> 2. If pentachlorophenol (PCP)is identified, analyze the soil and/or water sample for dioxins and furans by EPA Method 6290 <br /> and pesticides by EPA Method 8081A. <br /> 3, Method 6010B 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 7941 <br /> 4, Non-propnetary,penormance based analytical methods may be used with approval of Regional Board staff. <br /> Reviaed aiSIDe <br /> 3 <br />