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Environmental <br /> Resources <br /> San Joaquin County Management <br /> 19 August 2004 <br /> Page 3 <br /> Laboratory Analysis <br /> Soil samples will be submitted to Severn Trent Laboratories in <br /> Sacramento, California, for analysis of purr tabale dd extractable <br /> xtraEnvironmental <br /> total <br /> petroleum hydrocarbons (TPH) by Un es <br /> Protection Agency (USEPA) Method 8015 Modified. For samples in <br /> which TPH is detected above the laboratory reporting limit,ERM will <br /> also instruct the laboratory to analyze the samples for the following <br /> constituents: <br /> • Benzene, toluene, ethylbenzene, and total xylenes (BTEX) by USEPA <br /> Method 8020; and <br /> • Polynuclear aromatic hydrocarbons (PAHs) by USEPA Method 8270. <br /> Waste Management <br /> Upon completion of sampling activities, all soil cuttings, if generated, <br /> will be collected and stored on site in labeled drums or bulk containers, <br /> pending ultimate disposal. <br /> SCHEDULE <br /> The investigation is currently scheduled to be completed the week of 30 <br /> August 2004. Therefore,we would appreciate your prompt attention <br /> and review of the boring permit applications. If you have any questions <br /> regarding this workplan or boring permit applications, please do not <br /> hesitate to contact me at (916) 924-9378. <br /> Sincerely, <br /> Matthew D. Wright <br /> Project Engineer <br /> mdw/0021876 <br />