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n <br /> tank and product line locations . The wells will be <br /> Permit ted and constructed in accordance with San Joaquin <br /> Local Health District requirements. The wells will be <br /> constructed of two inch diameter P480 PVC well screen/casing <br /> and completed as shown on Figure 5. <br /> 2. Drill cuttings will be logged continuously for <br /> characterization of contamination and soil type by Unified <br /> Soil classification System. Descriptions of soils <br /> encountered and monitoring well construction details will be <br /> recorded on a boring/well log and included within the <br /> assessment report, cored soil samples will be collected <br /> just above the saturated zone for laboratory ar_alysis and <br /> below the water table at select Intervals for soil <br /> characterization. sampling will be conducted In accordance <br /> with Water Work's Soil Sampling protocol (Appendix I) , <br /> Laboratory analysis of soil samples will be conducted for <br /> benzene, toluene, ethyl benzene, xylenes (BTEX), and total—Re <br /> petroleum hydrocarbons (TPH) byEPA method ' 8015/8020. <br /> Sequoia Analytical, a state certified laboratory, will be <br /> used to perform the analyses, as required by law. All <br /> excavated soils will be placed on plastic sheeting, covered <br /> with same and remain on-site until laboratory results are <br /> received. Thereafter, a proposal for treatment or disposal <br /> of the excavated material will be prepared, <br /> 3. The wellheads will be surveyed to a common datum and <br /> groundwater levels will be monitored to determine the site <br /> Specific groundwater gradient. Free product thickness, if <br /> any, will be monitored using an interface probe. the <br /> � . monitoring will be conducted in accordance with waterWork's <br /> Groundwater Monitoring Protocol (Appendix I ) • <br /> 4. Subsequent to installation, water samples will be <br /> collected from the monitoring wells after purging a minimum <br /> Of four well volumes (casing and sandpack) . The purged <br /> water will remain on-site, in secured 55 gallon drums (DOT <br /> ` 17-E) until laboratory results are received. A <br /> the treatment or disposal of the water produced duringalwell <br /> development and sampling will be then prepared. Collection <br /> '. and preservation of all water samples will be in accordance <br /> with EPA protocol, specific sampling procedures are <br /> outlined in WaterWork's Groundwater Sampling Protocol <br /> (Appendix I) • The water samples will be analyzed by Sequoia <br /> Analytical for BTEX, and TPH as diesel by EPA method 503.1.• <br /> 5. All site activities involving potential contact with <br /> hazardous material <br /> (i•e• gasoline contaminated <br /> soils/groundwater) will be conducted in accordance with <br /> WaterWork's Health and Safety Plan (Appendix II) . <br /> �a <br />