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f µik <br /> AY <br /> f <br /> 1 <br /> Scope of Work <br /> Subsurface Site Assessm it <br /> Station #171 <br /> Page 2 <br /> ' accordance with se2tions 2645 and 2658 of the State of <br /> California Underground Storage Regulaticins dated August <br /> 1985. <br /> SOIL ANALYSIS <br /> ' Soil samples shall le analyzed as follows: <br /> 1. Total petroletI hydrocarbons (TPH) by EPA Method 8015 <br /> ' for all sample- <br /> 2 . <br /> 2 . Benzene, toluene, total xylenes (BTX) by EPA Method 8020 <br /> for all samplzzs over 500 PPM (TPH.) and at soil-water <br /> interface. <br /> ' 3 . Total lead by EPA Method 7421 for 'all samples over 500 <br /> PPM (TPH) and itt soil-water interface. <br /> 4 . Ethylene dibroaide. by EPA method 1601 :for all samples <br /> over 500 PPM (TPH) and at soil-water interface. <br /> Samples shall be analyzed using a liquid concentrator and -a <br /> gas chromatograph equipped with a photoionization detector. <br /> ' WATER SAMPLES <br /> The water same es shall be analyzed" for TPH according to <br /> a modified EPA Method 8020 using a gas chromatography <br /> equipped with a flaue ionization detector. The samples shall <br /> be analyzed for B7X according to EPA Method 602 using a '.. <br /> liquid sample concentrator and a gas chromatograph equipped. <br /> ' with a photoionizatzon detector. Minimum one water sample <br /> tested for.'.organic lead by EPA Method 7421. <br /> k <br /> S <br />