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100pe ti! <br /> 05 February 1996 <br /> AGE-NC Project No. 95-0135 <br /> Page 5 of 5 <br /> appropriate EPA methods. <br /> 11. Cuttings and rinseate generated during drilling activities will be containerized in properly <br /> labeled D.O.T. model 17H 55-gallon drums, and stored on-site in an area inaccessible to the <br /> general public. Disposal alternatives will be evaluated based on results of laboratory analyses. <br /> Convert the bores as a two-inch diameter monitoring wells in accordance with the well design <br /> in Figure 3. <br /> 12. Develop new monitoring wells utilizing a submersible pump until water is essentially sediment <br /> free. <br /> 13. Survey the top of each well casing to the nearest 0.01-inch to determine the elevation relative <br /> to existing wells. <br /> 14. No sooner than 48 hours after installation of ground water monitoring wells, measure the <br /> static water levels in each well to the nearest 0.01 foot. <br /> 15. Using a dedicated bailer or submersible pump, surge and purge all wells. At least three well <br /> volumes of water will be removed from each well to stabilize temperature, pH, and <br /> conductivity; stabilization parameters will be measured at one-well volume intervals. Ground <br /> water samples will be collected using polyethylene disposable bailers; samples will be <br /> collected in 40-m1 VOA vials preserved with hydrochloric acid. <br /> 16. Label and log water samples on a chain-of-custody form. <br /> 17. Store the samples in a chilled container under ice and transport the samples under chain-of- <br /> custody procedure to a state-certified laboratory for analysis. Water samples will be analyzed <br /> for TPH-g and BTE&X in accordance with EPA methods 8015m and 602, respectively. <br /> 18. Store purged water in properly labeled D.O.T. model 17H 55-gallon drums on-site in an area <br /> inaccessible to the general public, pending analytical results. <br /> 4.3. REPORTING <br /> A report detailing the results of the investigation will be prepared. The reportwill be in a format <br /> acceptable to the PHS-EHD and CVRWQCB. The report will be reviewed and signed by a California <br /> Registered Geologist. <br />