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Figure 2. <br /> 4) As excavation proceeds, monitor excavated soil for the presence of volatile organics <br /> using a photo-ionization detector (PID). Soil will be segregated into "clean" <br /> stockpiles and "impacted" stockpiles based upon PID measurements. <br /> 5) Stockpile the excavated soil on plastic sheeting, pending analytical results. Impacted <br /> soil will be stockpiled adjacent to the excavation. The clean soil will be used to <br /> backfill the excavation upon completion of digging. <br /> 6) If necessary, spray the excavated soil with water to minimize the release of volatile <br /> organic compounds into the atmosphere. Upon completion of excavation activities, <br /> the removed soil will be covered with plastic sheeting. <br /> 7) Collect soil samples from the sidewalls of the excavation. Approximately 4 soil <br /> samples will be collected. Samples will be collected from the backhoe bucket and <br /> preserved in pre-cleaned brass tubes. <br /> 8) Seal samples with aluminum foil or teflon sheets, cap, and store on ice pending <br /> transportation to a state-certified laboratory. <br /> 9) Label and log soil samples on a chain of custody form. <br /> 10) Analyze soil samples for total petroleum hydrocarbons (TPH as gasoline) and volatile <br /> aromatics (BTE&X) in accordance with EPA methods 8015m and 8020, respectively. <br /> 11) The excavation procedures and results of laboratory analyses will be detailed in a <br /> Quarterly Report. <br /> 4.2 Monitoring Well Installation <br /> For the installation of groundwater monitoring wells, the following procedures will be <br /> performed: <br /> 1) Prepare a Site Health and Safety Plan in accordance with the Occupational Safety <br /> and Health Guidance Manual for Hazardous Waste Site Activities - Prepared by <br /> National Institute for Occupational Safety and Health, Occupational Safety and <br /> Health Administration, U.S. Coast Guard and U.S. Environmental Protection <br /> Agency, October 1985. <br /> 2) Notify the San Joaquin County Environmental Public Health Services - <br /> Environmental Health Division (PHS/EHD) 48 hours prior to commencement of any <br /> work. <br /> O.duefol A.W S.rv....I. <br /> SC-95-0i.J%5-0b1WUJX)N CHURCH wy 95 <br /> 3 <br />