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02 June 2000 <br /> AGE-NC Project No. 98-0466 <br /> Page 7 of 7 <br /> 40 ml VOA vials with 0.5 ml 18% hydrochloric acid as a sample preservative, one 1-liter <br /> amber glass container lacking a preservative, and one 500-m1 plastic container lacking a <br /> preservative. (Note on the chain-of-custody that the 500-m1 and I-liter sample containers <br /> do not contain a preservative and have not been filtered). <br /> • The ground water sample collected from the west ditch area will be collected into four 40-m1 <br /> VOA vials, one 1-liter amber glass bottle and one 500-m1 plastic bottle as described above. <br /> • Label each sample container with boring designation, date and time of sampling, and <br /> sampler's initials, and log samples on a chain-of-custody form. <br /> • Store samples in a chilled container pending transport under ain-of-custody to a state- <br /> certified laboratory for analysis. <br /> • Backfill each boring to surface grade using portland cement utilizing a tremrnie pipe. <br /> 4.4. LABORATORY ANALYSES <br /> Selected ground water and soil samples will be analyzed for: <br /> • Total recoverable petroleum hydrocarbons (TRPH)by EPA Method 418.1; <br /> • Volatile organic compounds (VOCs), including PCP/TCP, by E A Method 8260; <br /> • Formaldehyde by EPA Method 8315; <br /> • Arsenic by EPA Method 7060A in soil and <br /> • Total nickel, copper, lead, zinc, and chromium by EPA Meth& 6010 in soil and by EPA <br /> Methods 200.7 and 200.9 in water. <br /> 4.5. REPORT PREPARATION <br /> Upon completion of all field work, a report will be prepared summarizing results of the work <br /> performed. The report will be in a format acceptable to the PHS-EHD and will be reviewed and <br /> signed by a California Registered Geologist. <br /> Advanced GmEnvironmental,Inc. <br />