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,02/20/2008 WE 15: '4 VAX 2099683933 WC EHD Stockton Sery Sta Eq Cc 2005/008 <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 /> reprosentat:v:. cf native soils beneath the tank's invert (tank's bottom) at a collection depth not to exceed 2 - 4 feet. If <br /> :;cntaminat;cn is documented during closure,an Unauthorized Release Notification must be completed and submitted within five(5) <br /> worming day::pur,,rUrt to California Health&Safety Code,Section 25295. <br /> ___ _ DISPENSER PIPING AND STOCKPILE SAMPLES <br /> rDISPENSER SAMPLES 1 Sample beneath each dispenser <br /> r <br /> SOIL SAMPLES 1 Sam?le every 20 lineal feet i <br /> �I Dl^PENSER&PIPING STOCKPILE SAMPLES 2 Samples every 50 cubic yards <br /> TABLE#2 RECOMMENDED MINIMUM VERIFICATION ANALYSES <br /> FOR UNDffERGROUND STORAGE TANK INVESTIGATIONS <br /> i <br /> TANK TANK TPH•G TPH-D BTX&E CL HC i TOTAL MTBE OXYGENATES METALS PCB <br /> ## CGNTLN a LEAD 8270 <br /> j, (MTBE,TBA,DIPE, ICAP/AES <br /> i. 60'15 8015 8(1120 8010 <br /> 8020 ETBE,TAME) or 8080 <br /> 1 a:'60 826n8260 8240 7420 <br /> j 8260 7421 8260 1,2.DCA&EDBAA <br /> 8260 <br /> LEAJLJ GAS � X X <br /> UNI-GAS X• <br /> DIESE:,_ X I X <br /> ENE. 'j x X X <br /> — — - — <br /> j X <br /> PROD.:)IL X � X _ <br /> 1 I — <br /> irhiLC�< <br /> ? SOLVENTSI I ( X X <br /> !'iTt:. .:_DOLL is I <br /> UNKNO•A,N X X ;: I X X X X <br /> I <br /> ' :�ti:ieiE91f3Yd'J41{IiYM_�"S'�il�a�r�f'J: <br /> I rf.)"N Method 326DB analyses must irtcluue all analytes listed in the method plus fuel oxygenates methyl- <br /> :.ry `.wlyi ether(MTBE.),aiisupropyl ether(DIPS),ethyl-tertiary-butyl ether(ELBE), tertiary-amyl-methyl <br /> _ .er 1,TAME),tertiary-bu,anol(TBA;,methanol and ethanol and fuel additives 1,2-dichloroethane(1,2-DCA) <br /> -:i(i eth fene dib:omide(EDB or 1,2-dibromoetnane). <br /> !' ^e•itach!orophenol(PCP)is identified, analyze the soil and/or water sample for dioxins and furans by EPA <br /> %Ietnocl 8290 anc pesticides by EPA.Method 8081A. <br /> ALS ICAP of AA Inductively Cuuplec Plasrna Atomic Emission Spectrometry 6010 or Atomic Absorption <br /> .;-i:;,netry 700u. Metais: uadrnium,Chromium III and VI,Lead,Zinc and Nickel. <br /> proprietary,performance based anaiytichl nethods may be used with approval of Regional Board staff. <br /> Rev,sed <br />