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w <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, In Unauthorized Release Notification must be completed and submitted within five(5) <br /> working days pursuant to California Health& fety Code,Section 25295. <br /> DISPENSE 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 RECO ENDED MINIMUM VERIFICATION ANALYSES <br /> FOR UNDERG UND STORAGE TANK INVESTIGATIONS <br /> Tank BTEX VOCs Semi- Title <br /> Samples Contents Gasolin Diesel b b VOCs Oil& PCBs Total <br /> by 8015 by y y b Grease b Lead b Metals <br /> 22 <br /> Required Carbon 80218 82606 <br /> (Ran a or 8260 8016M or (1) 8270C by 1664A 8082 7421 y <br /> (2) 3 <br /> 9 8260B ( ) <br /> Unknown(C4-C36)Fuel X X X ���� X <br /> Gasoline(C4-C20) X ®�� <br /> u Diesel(C10-C36) ®®®������� <br /> Jet Fuel/Kerosene 0X�������� <br /> C9-C20 <br /> Heating Oil(C10- X X �������� <br /> Stoddard Solvent <br /> (C8hlomn ❑ X <br /> Non-Chlorinated ❑❑❑�❑ <br /> Chlorinated Solvents X X --, <br /> �� Unknown COolntents X _0EK1=x I X x � <br /> Notes: <br /> 1. EPA Method 82608 analyses must in lude all analytes listed in the method plus fuel oxygenates methyl-tertiary-butyl ether <br /> (MTBE),diisopropyl ether(DIPE),eth -tertiary-butyl ether(EtBE),tertiary-amyl-methyl ether(TAME),tertiary-butanol(TBA), <br /> methanol and ethanol and fuel additiv 1,2-dichloroethane(1,2-DCA)and ethylene dibromide(EDB or 1,2-dibromoethane). <br /> 2. If pentachlorophenol (PCP) is identifie , anal a the soil and/or water sample for dioxins and furans by EPA Method 8290 <br /> and pesticides by EPA Method 8081 <br /> 3. Method 6010B may be used for all the ollowir g etals, for which individual AA methods are required: Antimony&Arsenic <br /> by 7062,Cadmium by 7131A, Lead by 7421, h lercury 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 />