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i <br /> - CA- <br /> L �� <br /> Working To Restore Nature <br /> . 1710 Main Street <br /> Escalon, CA 95320 <br /> Phone (209) 838-3507 <br /> FAX (209) 838-3509 FIELD PROCEDURES <br /> Site Safety Plan <br /> This plan describes the safety requirements for field work performed at the site. The site safety <br /> plan is applicable to personnel of RESNA Industries who perform the field work! A copy of <br /> the site safety plan is available for reference by appropriate parties during the work. The on-site <br /> representative of RESNA Industries acts as the Site Safety Officer. <br /> Groundwater Sampling <br /> The static water level in each well was measured to the nearest 0.01 foot with a SoIinst electric <br /> water-level sounder cleaned with a laboratory-grade, non-phosphatic detergent and deiomzed <br /> water before use in each well. A clean bailer was used to obtain a sample from the surface of <br /> the water in the well for subjective analysis of hydrocarbons The sample was retrieved and <br /> visually examined for floating product, sheen, color, and clarity. <br /> Approximately 3 well volumes of groundwater were purged from the wells using a stainless-steel <br /> electrical submersible pump. The pump, cables, and hoses were cleaned with a laboratory- <br /> grade, non-phosphatic detergent and water before use in each well The wells werelpurged until <br /> withdrawal was of sufficient duration to result in stabilized pH, temperature, and electrical <br /> conductivity of the water, as measured by portable meters calibrated to a standard buffer and <br /> conductivity standard. The wells recovered to more than 90 percent of the static water level <br /> within 5 minutes of turning off the pump The groundwater purged from the wells was <br /> temporarily stored in 17-E, steel, 55-gallon liquid waste drums approved for this use by the <br /> Department of Transportation. <br /> SHELLS%FPROCED <br />