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i <br /> 3, An element of the proposed project will be aOWS (Asea 25 shown in Figure 2) and <br /> Evaporation Pond(Area 20 in Figure 2)forhe treatment and disposal of wastewater and <br /> storm water from industrial process areas of'the Intermodal Facility. Effluent from the OWS <br /> would normally be discharged to the sanitary sewer at this type of facility. However, sanitary <br /> sewer service is not available at this location and effluent from the OWS must be <br /> managed onsite. <br /> 4. A,Report of Waste Discharge (ROWD) for the OWS and evaporation pond was submitted to <br /> the RWQCB on July 21, 1999. In a comment letter dated December 20, 1999, the RWQCB <br /> requested that the background quality of the ground water at the site be evaluated. <br /> 3.0 SCOPE OF WORK <br /> 3.1 APPROACH <br /> 1 . To evaluate the background quality of ground water at the site,one upgradient ground water <br /> monitoring well (MW-1) will be installed and monitored. MW-1 will be located near the <br /> northeast property boundary (see Figure 2 for approximate location of the well) in the <br /> anticipated upgradient flow direction to evaluate background ground water quality. It is <br /> anticipated that MW-1 will provide data to+aluate the ground water quality on the upgradient <br /> side of the proposed OWS and EvaporationPond_ The direction of ground water flow within <br /> the uppermost flow zone is primarily to the southwest in the site area. This evaluation is <br /> based on information contained in the San Joaquin County, California Flood Control and <br /> Water Conservation District, Sprang 1988 Ground Water Report. <br /> 3.2 DRILLING AND SOIL SAMPLING <br /> 1. Field work will be performed by TRC personnel under the direct supervision of a California <br /> Registered Geologist (RG) or a Professional Civil Engineer(PE). <br /> 2. Prior to drilling, a well construction permit will be obtained from the San Joaquin County <br /> Public Health Services Environmental Health Division and Dia Alert will be notified to assess <br /> the potential presence of underground pipelines or utilities. <br /> I <br /> 2 TRC <br /> cusbr e4ccused Savfivns <br /> ZO 'd bb:bl 00, Zz Inf <br />