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SAMPLING PROTOCOL FOR ROUTINE PIPING/DISPENSER REMOVAL/REPLACEMENT <br />The following represents minimum sampling criterion le(p ifed tnr Closure crnnpliancf. ticeri sarnply collected shall I.,r, <br />representative of native soils beneath the tank's invert (tank's bottom) at a collection depth not to exceed 2 4 feet It <br />contamination is documented during closure, an Unauthorized Release Notification must be completed and submitted within <br />five (5) working days pursuant to California Health & Safety Code, Section 25295 <br />DISPENSER PIPING AND STOCKPILE SAMPLES <br />DISPENSER SAMPLES <br />PIPING SOIL SAMPLES <br />DISPENSER & PIPING STOCKPILE SAMPLES <br />1 Sample beneath each dispenser, <br />1 Sample every 20 lineal feel <br />2 Samples every 50 cubic yards <br />TABLE #2 RECOMMENDED MINIMUM VERIFICATION ANALYSES <br />FOR UNDERGROUND STORAGE TANK INVESTIGATIONS <br />TANK TANK TPH-G TPH 0 BTX & E <br />CL HC <br />TOTAL <br />MTBEOXYGENATES <br />METALS <br />PGB <br /># CONTENTS <br />LEAD <br />8270 <br />8015 801 S 8020 <br />8010 <br />(MTBE, TBA, 01PE, <br />ICAP/AES <br />8260 8260 8260 <br />8240 <br />7420 <br />8020 <br />FTSE. TAME) <br />or <br />8080 <br />8260 <br />7421 <br />8260 <br />1,2 DCA & EDB <br />AA <br />8260 <br />LEADED GAS X X <br />X <br />X <br />UNL GAS X X <br />X <br />DIESEL X X <br />- <br />_ — KEROSENE X X <br />X <br />UNKFUEL X X X <br />X <br />X <br />PROD. OIL X X <br />X <br />CHLOR. <br />SOLVENTS X <br />X <br />X <br />NONCHLOR <br />SOLVENTS X X <br />X <br />WASTEIUSED OIL <br />OR <br />UNKNOWN X X X <br />X <br />X <br />X <br />X <br />CONTENTS <br />Notes. <br />1. EPA Method 8260B analyses must include all analytes listed in the method plus fuel oxygenates <br />methyl -tertiary. -butyl ether (MTBE), diisopropyl ether (DIPE), ethyl -tertiary -butyl ether (EtBE), tertiary <br />amyl -methyl ether (TAME), tertiary -butanol (TBA), methanol and ethanol and fuel additives 1,2- <br />dichloroethane (1,2 -DCA) and ethylene dibrornide (EDB or 1,2-dibromoethane). <br />2. If pentachlorophenol (PCP) is identified, analyze the soil and/or water sample for dioxins and furans by <br />EPA Method 8290 and pesticides by EPA Method 8081A. <br />3. METALS ICAP or AA Inductively Coupled Plasma Atomic Ernission Spectrometry 6010 or Atomic <br />Absorption Spectrometry 7000. Metals: Cadmium, Chromium III and VI, Lead, Zinc and Nickel. <br />4. Non-proprietary, performance based analytical methods may be used with approval of Regional Board <br />staff. <br />Revised 02/20/09 <br />A <br />