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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 />Tri -Regional Recommendations <br />Appendix A <br />TABLE #2 RECOMMENDED MINIMUM VERIFICATION ANALYSES <br />FOR UNDERGROUND STORAGE TANK INVESTIGATIONS <br />Samples <br />Required <br />ji <br />DISPENSER SAMPLES <br />1 Sample beneath each dispenser <br />Diesel <br />by <br />8015M <br />11 <br />PIPING SOIL SAMPLES <br />1 Sample every 20 lineal feet <br />VOCs <br />by <br />82C <br />DISPENSER & PIPING STOCKPILE SAMPLES <br />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 />Samples <br />Required <br />ji <br />Tanksemi- <br />Contents <br />(Carbon <br />a <br />Range) ) <br />11 <br />Gasoline <br />by 8015M <br />or 82608 <br />Diesel <br />by <br />8015M <br />11 <br />BTEX <br />by <br />80218 <br />or <br />82608 <br />VOCs <br />by <br />82608 <br />(1) <br />VOCs <br />by <br />82C <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 />(3) <br />UnknownFuel <br />4-C36) <br />��0������ <br />.:� .r . . , : , .: <br />..r»�!''.. fr.w�, n . .��:3�.v�✓ <br />i <.:... ., .�� , f <br />...,..�`,f <br />..... .'.�. <br />�, 2-.:-,�. <br />'ns.,.e . <, . r, <br />my �.,.s,.., l <br />EM <br />�11 <br />Gasoline (C4 -C20) <br />x <br />X <br />Diesel (C10 -C36) Xl X X <br />Jet Fuel/Kerosene <br />(C9 -C20) <br />Heating Oil (C10- F ----]I x II x IF— <br />II II Oddard Solvent <br />n(rs) <br />hinrin <br />/Nna Aril (I II X II II X II II (I II II II <br />Chlorinated I) I) II 11 X 11 X <br />Oil oX <br />t <br />ContI LuJ x JL JluL_ <br />ents <br />X <br />Notes: <br />1. EPA Method 8260B 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 (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 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-proprietdry, performance based analytical methods may be used with approval of Regional Board staff. <br />Revised 8/8/06 <br />3 <br />