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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 Semi- <br /> BTEX VOCs Title <br /> Gasoline Diesel VOCs Oil& PCBs Total <br /> Samples Contents by 8015M by by by by Grease by Lead by 22 <br /> Required (Carbon or 82608 8015M 80216 821) 8270C by 1664A 8082 7421 Metals <br /> Range) �X 1I 82668 (1) (2) (3) <br /> Un C4-C36known Fuel 1L—_I=E:xK1=r� <br /> Gasoline lC4-C2U) IIILI _ <br /> Diesel(C10-C36) ���®������ <br /> Jet F C9-C20sene , X L—X--]=L�J���� <br /> Heating COil(C10- _JLij_XJ � <br /> Noon(OMoriina ed L�JlX !1 11 ❑�❑ <br /> D �� C�C�L <br /> Chlormeted-7� 1�. <br /> Salverts ��j�= L_ S__-I� <br /> Waste Oil of <br /> Unknown Contc—° _�— X ,��11�L—J��i <br /> Notes: <br /> 1. EPA Method 82608 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(ELBE),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 8081 A. <br /> 3. Method 60108 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 aialytical methods may be used with approval of Regional Board staff. <br /> Revised 8/3/07 <br /> 3 <br />