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Scope of Work - Subsurface Site Assessment <br /> 1 Page - 2 - <br /> I <br /> A <br /> r feet will be backfilled with a bentonite cement mixture. <br /> M. <br /> Prior to drilling, underground utilities, gasoline/diesel tanks <br /> 4 and piping will be verified in the field. <br /> Drilling permits for boring installations will be obtained where <br /> required by local agencies. <br /> r <br /> SOIL SAMPLES <br /> Soil samples shall be taken every 5 feet and evaluated in the <br /> 1 <br /> k field with an organic vapor meter (CVM) and a head space analysis <br /> technique for the purpose of identifying the visible presence or <br /> odor of hydrocarbons. <br />{ <br /> In the event a material presence or odor of hydrocarbons is <br /> detected in the samples, the soil samples taken every ten feet <br /> shall be analyzed in a laboratory for the presence of >= <br /> hydrocarbons. Results shall be reported as total petroleum <br /> hydrocarbons (TPH) using E. P. A. method 8015. <br /> k W <br /> WATER SAMPLES <br /> If the groundwater table is encountered, it shall be <br /> characterized ad to the presence or absence of free floating <br /> hydrocarbons. If free floating hydrocarbons are not encountered <br /> ti � <br />