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MINIAMAI VERIFICATION LABORATORY ANALYSIS <br />All analyses methods are designated EPA methods described in EPA SW 846, Third Edition. Those methods not found <br />in SW 846, are specifically noted below. Refer to the'SWRCB LUFT Field Manual', Appendix A-20, Table 3-5 for <br />detection limits of motor vehicle fuels (gasoline and diesel). Refer to 1-2-3 'Regional Board Staff Recommendations for <br />Initial Evaluation and Investigation of UST's' for the waste and motor oil detection limits. <br />Detection Limits that remain below the hICL, STLC or Allowable Limit of the contaminant in question will be accepted, <br />however laboratory shall utilize the most conservative method. <br />TPH-G <br />Total Petroleum Hydrocarbon, Gasoline, GC/FID (5030) 8015 mod or GC/MS 8260 <br />TPH-D <br />Total Petroleum Hydrocarbon, Diesel, GC/FID (3550), 8015 mod or GCIMS 8260 <br />BTX & E <br />Benzene, Toluene, Xylene & Ethyl Benzene, GCIPID 8020 or GC/MS 8260 <br />CL HC <br />Chlorinated Hydrocarbon, GC/HSD 8010, GC/MS 8240 <br />TOTAL LEAD <br />Total lead, AA 7420, AA 7421 or ICP -AES 6010 <br />EDB <br />Ethylene dibromide (DHS -AB 1803), GC/MS 8240 (DHS-LUFI) <br />GC -FID <br />Gas Chromatography, Flame Ionization Detection <br />ICRP or AA <br />Inductively Coupled Plasma Atomic Emission Spectrometry 6010 or Atomic Absorption <br />Spectrometry 7000. Metals: Cadmium, Chromium III and VI, Lead, Zinc and Nickel. <br />PCB <br />Polychlorinated Biphenyls, GC/MS 8270 or 8080 <br />Method 3050 <br />Acid digestion <br />Method 3540 <br />Soxhlet sample preparation <br />Method 3550 <br />Sonication sample preparation, extraction method <br />Method 5030 <br />Purge and trap sample preparation <br />QA/QC <br />Quality Assurance/Quality Control <br />Notes: To avoid false positive detection of benzene, benzene -free solvents are to be used. Fused capillary columns are <br />preferred to packed columns; a packed column may be used as a 'first cut" with 'dirty" samples or once the hydrocarbons <br />have been characterized and proper QA/AC is followed. <br />For Drinking water sources, EPA recommends that the 500 series for volatile organics be used in preference to the 600 <br />series because the detection limits are lower and the QA/QC is better. Samples exhibiting any level of heavy metal <br />contamination may require further analysis. PHS-EHD recommends holding these samples until disposal is indicated. <br />EH 23 048 (Revised 7/10/42) Page 8 <br />