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I <br />0 <br />0 <br />J <br />11 � <br />IL' <br />l <br />F" <br />r-� <br />r <br />�, , <br />The following represents minimum sampling criterion required for closure compliance. Soil samples collected shall be <br />representative of native sols 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 />RA- PIPING SOIL SAMPLES 1 Sample every 20 lineal feet <br />I�j,k DISPENSER & PIPING STOCKPILE SAMPLES 2 Samples every 50 cubic yards <br />FOR UNDERGROUND <br />STORAGE <br />TANK INYE5TIGA <br />I IUNS <br />TANK TANK TPH-G <br /># CONTENTS <br />8015 <br />8260 <br />TPH-D BTX & E CL HC <br />8015 8020 8010 <br />8260 8260 8240 <br />8260 <br />TOTAL MTBE <br />® <br />8020 <br />7420 8260 <br />7421 <br />OXYGENATES <br />(MTBE, TSA, RIPE, <br />ETBE,TAME) <br />1,2 DCA & EDB <br />8260 <br />METALS <br />ICAP/AES <br />or <br />AA <br />PCB <br />8270 <br />8080 <br />LEADED GAS X <br />X <br />X <br />X <br />UNL GAS X <br />X <br />X <br />DIESEL <br />X <br />X <br />KEROSENE <br />X <br />X <br />UNK FUEL X <br />X <br />X <br />_ X <br />X <br />PROD. OIL <br />XX <br />X <br />CHLOR SOLVENTS SOLVENTS <br />X <br />X <br />_- <br />NONCHLOR <br />SOLVENTS <br />X <br />X <br />X <br />WASTIRUSED OIL <br />OR <br />UNKNOWN X <br />X <br />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 methyl - <br />tertiary -butyl ether (MTBE), diisopropyl ether (DIPE), ethyl -tertiary -butyl ether (EtBE), tertiary -amyl -methyl <br />ether (TAME), tertiary -butanol (TBA), methanol and ethanol and fuel additives 1,2-dichloroethane (1,2 -DCA) <br />and ethylene dibromide (EDB or 1,2-dibromosthane). <br />2. If pentachlorophenol (PCP) is identified, analyze the soil and/or water sample far dioxins and furans by EPA <br />Method 8290 and pesticides by EPA Method 8081A- <br />3. METALS ICAP or AA Inductively Coupled Plasma Atomic Emission Spectrometry 6010 or Atomic Absorption <br />Spectrometry 7000. Metals: Cadmium, Chromium III and Vl, Lead, 23nc and Nickel. <br />4. Non-proprietary, performance based analytical methods may be used with approval of Regional Board staff. <br />Revised 02/20109 <br />4 <br />