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SAMPLING PROTOCOL FOR ROUTINE PIPING/DISPENSER REMOVAL/REPLACEMENT <br />The following represents minimum sampling criterion required for closure cotSAMPLFS <br />oil samples collected shall be <br />representative of native soils beneath the tank's invert (tank's bottom) at a coh not to exceed 2 - 4 feet. If <br />contamination is documented during closure, an Unauthorized Release Notification mleted and submitted within five (5) <br />working days pursuant to California Health & Safety Code, Section 25295. <br />DISPENSER PIPING AND STOCKP E <br />Tri -Regional Recommendations <br />Appendix A <br />TABLE #2 RECOMMEND MINIMUM VERIFICATION ANALYSES <br />FOR UNDERGROUN STORAGE TANK INVESTIGATIONS <br />Samples <br />Required <br />DISPENSER SAMPLES <br />1 Sample beneath each dispenser <br />/Diesel <br />by <br />8015M <br />PIPING SOIL SAMPLES <br />1 Sample every 20 lineal feet <br />Semi- <br />VOCs <br />by <br />8270C <br />t2) <br />DISPENSER & PIPING STOCKPILE SAMPLEY <br />2 Samples every 50 cubic yards <br />Tri -Regional Recommendations <br />Appendix A <br />TABLE #2 RECOMMEND MINIMUM VERIFICATION ANALYSES <br />FOR UNDERGROUN STORAGE TANK INVESTIGATIONS <br />Samples <br />Required <br />Tank <br />Contents <br />(Carbon <br />Ran g <br />9) <br />Gasoline <br />by 8015 <br />or 8260 <br />/Diesel <br />by <br />8015M <br />BTEX <br />by <br />8021 B <br />or <br />s or <br />VOCs <br />by <br />8260B <br />�1) <br />Semi- <br />VOCs <br />by <br />8270C <br />t2) <br />Oil & <br />Grease <br />by 1664A <br />PCBs <br />by <br />8082 <br />Total <br />Lead by <br />7421 <br />Title <br />22 <br />Metals <br />S <br />( ) <br />Un C4-C36ue1 <br />Gasoline (C4 -C20) <br />X <br />������� <br />=F7]1 <br />X <br />�r®I <br />X <br />I <br />(C� <br />Diesel (C10 -C36 <br />Jet Fuel/Kerosene <br />C9 -C20 <br />Heating C Oil ( 10 <br />Stoddard olvent <br />(C8 2inat d) <br />Non - lorinated <br />C lorinated <br />Solvents <br />Paste Oil or <br />ntsL <br />C�®®®���������� <br />� <br />„��L--]ET=EK1=EL1 <br />X� <br />XjX��j��� <br />� <br />�1���� <br />X����� <br />u <br />�❑�❑ <br />Notes: <br />1. EPAM hod 82608 analyses must include all analytes listed in the method plus fuel oxygenates methyl -tertiary -butyl ether <br />(MTB , diisopropyl ether (DIPS), ethyl -tertiary -butyl ether (EtBE), tertiary -amyl -methyl ether (TAME), tertiary -butanol (TBA), <br />met of 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 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 7841. <br />4. Non-proprietary, performance based analytical methods may be used with approval of Regional Board staff. <br />Revised 8/8/06 <br />