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Mr. D. O. Culbertson -2- 11 February 1994 <br /> 5. After well development is completed, there must be a 48-hour wait before sampling to ensure <br /> representative samples will be obtained. During well purging, EC, temperature, and pH <br /> should be measured and should stabilize before samples are collected. <br /> 6. A startup date for the site investigation is needed. After Phase 1 of the investigation is <br /> completed, a report of findings should be submitted including the proposed locations of the <br /> monitoring wells. <br /> Please respond to these comments by 9 March 1994 and provide a definite time schedule for <br /> beginning the work and submitting subsequent reports. If you have any questions, please call me at <br /> (916) 255-3054. <br /> �J.ujjtI <br /> 4Y-DAVID E. JENKINS <br /> Associate Engineering Geologist <br /> DEJ:dej/ldj <br /> cc: Ms. Margaret Lagorio, San Joaquin Public Health Services, Stockton <br /> Mr. Richard Larrouy, San Joaquin County Community Development Department, Stockton <br /> Mr. Bill Vizza, Director, Department of Public Works, Tracy <br /> Mr. Ronald E. Hoffman, Tracy <br />