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MINIMUM VERIFICATION LABORATORY ANALYSIS OXVGEMM; TANK TANK TPH-G TPH-D BTX&E CL HC TOTAL MTBE (MTBE. "CET� PCB p CONTENTS 8015 8015 8020 8010 LEAD 8020 TBA,DrPE, ICRP/ETBE. AES 8270 8260 8260 8260 8240 7420 8260 TAME) - or 8080 8260 7421 8260 AA ` LEADED GAS X X X X UNL GAS X t X X DIESEL X X KEROSENE X X X i UNK FUEL X X X X X PROD. OIL X X X CHLOR. X SOLVENTS X X NONCHLOR X SOLVENTS X X WASTE% USED OIL X X X X XTXFX All analysis methods are the designated EPA methods described in EPA SW 846,Third Edition. Those methods not found in SW f 846 are specifically noted below. Refer to the "SWRCB LUFT Field Manual", Appendix D(B),Table 3-5 on page A20 for minimum detection limits for motor vehicle fuel(gasoline and diesel). Refer to "Tri-Regional Board Staff Recommendations for Initial Evaluation and Investigation of UST's"for the waste and motor oil minimum detection limits. Detection Limits thatremain below the MCL,STLC or Allowable Limit of the contaminant in question will be accepted, however laboratory shall utilize the most conservative method. LABORATORY ANALYSES TERMINOLOGY: TPH-G Total Petroleum Hydrmarbon,Gasoline,GC/FID(5030)8015 mod or GC/MS 8260 TPH-D Total Petroleum Hydrocarbon,Diesel. GC/FID(3550),8015 mod or GC/MS 8260 BTX&E Benzene,Toluene, Xylene&Ethyl Benzene,GC/PID 8020 or GC/MS 8260 CL HC Chlorinated Hydrocarbon,GC/HSD 8010,GC/MS 8240 or 8260 TOTAL LEAD Total lead,AA 7420, AA 7421 or ICP-AES 6010 OXYGENATES MTBE,ETBE,TAME,DIPE,&TBA GC/MS 8260(For MTBE screen only you may use 8020) METALS ICAP or AA Inductively Coupled Plasma Atomic Emission Spectrometry 6010 or Atomic Absorption Spectrometry 7000. Metals:Cadmitun,Chromium III and VI,Lead,Zinc and Nickel. PCB Polychlorinated Biphenyls,GC/MS 8270 or 8080 GC-FID Gas Chromatography, Flame Ionization Detection Method 3050 Acid digestion Method 3540 Soxhlet sample preparation Method 3550 Sonication sample preparation,extraction method r Method 5030 Purge and trap sample preparation QA/QC Quality Assurance/Quality Control Notes: To avoid false positive detection of benzene, benzene-free solvents are to be used. Fused capillary columns are preferred to packed i columns;a packed column may be used as a"first cut"with "dirty"samples or once the hydrocarbons have been characterized and proper QA/QC is followed. For drinking water sources,EPA recommends that the 500 series for volatile organic should be used in preference to the 600 series because the detection limits arc lower and the QA/QC is better. Samples exhibiting any levet of heavy metal contamination may require further analysis. PHS-EHD recommends holding those samples until disposal is indicated. EH 23 046 (Revised 05/09/00) Page 8