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© LUHDORFF 6 SCALMANINI GROUND-WATER RESOURCES <br /> O N S U L T I N G E N G I N E E R S HYIX LOGY. CEV LCFMENI . MMI MEN <br /> August 13, 2003 <br /> File No. 00-7-033 <br /> Mr. Mike Infuma <br /> San Joaquin County Environmental Health Department <br /> Attn.: UNIT IV o <br /> 302 E. Weber St ca <br /> Stockton, CA 95202. is <br /> SUBJECT: SMS BRINERS WELL PERMIT APPLICATION r �` <br /> FOR SOIL BORINGS - Mr <br /> IV �rn <br /> Dear Mr. Infixma: rnr <br /> 0 <br /> Please find enclosed the signed Well Permit Application for the SMS Briners' site located at <br /> 17750 E. Highway 4. The Application is for the planned construction and subsequent <br /> abandonment of two soil borings located in the southerly evaporation pond at the SMS site. <br /> SMS Briners conducts ongoing surface and ground-water monitoring at the site in response to <br /> the requirements set by the Regional Water Quality Control Board to assess the effect of <br /> historical brining operations on ground-water quality(particularly shallow ground-water quality). <br /> In October 2002, the Board updated the site Monitoring and Reporting Program (MRP). SMS <br /> Briners submitted a comprehensive Annual Monitoring Report for 2002 to the Regional Board <br /> in April 2003 that describes monitoring activities, ground-water quality and hydrology, other <br /> facility compliance activities, and also the planned soil borings. The week-of August 18, LSCE <br /> will be submitting the January-June 2003 Semi-Annual Report to the Board. The Regional <br /> Board staff person for this site is Howard Hold(916-255-3379). <br /> As described in the Annual Monitoring Report for 2002 (LSCE, 2003; see also excerpt <br /> attached), the two soil borings will be constructed by auger drilling methods and will extend <br /> from the base of the south pond to a depth of about 110 to 120 feet, or a depth consistent with <br /> near the top of the water table. Samples will be collected at approximately 10-foot intervals with <br /> more frequent sampling in the uppermost 10-foot interval. The soil samples will be analyzed for <br /> total salts and chloride, and the results will be used to develop a vertical profile of the salt <br /> distribution beneath the pond. The soil borings will be properly destroyed at the conclusion of <br /> the sampling activities. Sealing of the borings will be done using a tremie pipe to place cement <br /> grout to the total depth of the boring. <br /> Scheduling of construction activities has been contingent on the south pond being accessible for <br /> the drilling rig. Drilling is tentatively scheduled for the first week of September. LSCE's <br /> technician plans to perform the next creek sampling activity on August 19 and will confirm <br /> 500 First Str et . Woodland, CA 95695-4026 . 530.661.0109 • Fax 530.661.6806 <br />