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MINIMUM VERIFICATION LABORATORY ANALYSIS TANK TANK TPH-G TPH-D BTX & E CL HC TOTAL MTBE METALS PCB p CONTENTS 8015 6015 8020 8010 LEAD TBA, 8270 8260 8260 8260 8240 7420 DIPS, AES or 8080 7421 ETBE, AA TAME 8260 LEADED GAS X X X UNL GAS X TXX X DIESEL XKEROSENE X UNK FUEL X X X X X PROD. OIL X X CHLOR. SOLVENTS X X NONCHLOR SOLVENTS X X X WASTE\ USED OIL X X X X 7 X X All analysis methods are the designated EPA methods described in EPA SW 846, Third Edition. Those methods not found in SW 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 1-2-3 "Regional Board Staff Recommendations for Initial Evaluation and Investigation of UST's' for the waste and motor oil minimum detection limits. Detection Limits that remain below the MCL, STLC or Allowable Limit of the contaminant in question win be accepted, however laboratory shall utilize the most corss ative method. L4BORATORY ANALYSES TERMINOLOGY TPH-G Total Petroleum Hydrocarbon, 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, GCIHSD 8010, GC/MS 8240 TOTAL LEAD Total lead, AA 7420, AA 7421 or ICP -AES 6010 MTBE,TAME.DIPE,TBA GC/MS 8260 METALS ICAP or AA Inductively Coupled Plasma Atomic Emission Spectrometry 6010 or Atomic Absorption Spectrometry 7000. Notes: To avoid false positive detection of benzene, benzene -free solvents are to be used. Fused capillary columns are preferred to packed columns: a packed column may be used as a "first nu" 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 are lower and the QA/QC is better. Samples exhibiting any level of heavy metal contamination may require funher analysis. PHS-EHD recommends holding Nose samples until disposal is indicated. EH 23 046 (Revised 10/19/98) Page 8 Metals: Cadmium, Chrordum 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 Method 5030 Purge and top sample preparation QA/QC Quality Assurance/Quality Control Spectrometry 7000. Notes: To avoid false positive detection of benzene, benzene -free solvents are to be used. Fused capillary columns are preferred to packed columns: a packed column may be used as a "first nu" 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 are lower and the QA/QC is better. Samples exhibiting any level of heavy metal contamination may require funher analysis. PHS-EHD recommends holding Nose samples until disposal is indicated. EH 23 046 (Revised 10/19/98) Page 8