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STAIE OF CALIFORNIA GEORGE DEUKMEJIAN, Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— <br /> CENTRAL VALLEY REGION nb&&"g <br /> 3443 ROUTIER ROAD, SUITE A a <br /> SACRAMENTO. CA 95827-3098 <br /> 9 August 1990 ,� <br /> � E� .1 VE � <br /> AUG ? <br /> Mr. Dana Means ENVIRONMENTAL HEALTH <br /> Southwest Hide Company PERMIT;�ERViOES <br /> P.O. Box 2083 <br /> Manteca, CA 95336 <br /> 6ROUNDWATER INVES116AIION, SU1/TH1 i- i H1DE CavAriY, SAN JO AQU1N COUNTY <br /> We have reviewed your deep monitoring well proposal and monthly update submitted <br /> by Moldenhauer Engineering on 6 July 1990. Our comments are detailed in the <br /> attached memorandum and as follows: <br /> 1. The location of the proposed monitoring well to determine the vertical <br /> extent of pollution is acceptable. The design placing three wells within <br /> one borehole should be reconsidered unless adequate verification of <br /> sampling zone integrity is be provided. <br /> 2. The submitted isoconcentration contours show the TDS pollution is off-site <br /> to the north and south. A work plan to define the TDS plume to background <br /> concentrations is required. <br /> A review of our files shows that you still have not submitted a revised remedial <br /> plan that has been requested by this office on several occasions. Failure to <br /> furnish Technical Reports as required by the Board is violation of the State <br /> Water Code, Sections 13267 and 13268, and may result in fines of up to $1 ,000 per <br /> day of violation. An acceptable schedule addressing the above comments and <br /> submittal of a Site Characterization and Remedial Action Plan is required within <br /> two weeks of the date of this letter. <br /> If we can be of assistance, please call me at (916) 361-5570 or Richard McH--nry <br /> at (916) 361-5656. <br /> ANTONIA - J. VORSTER <br /> Senior Engineer <br /> RPM:ej <br /> Enclosure <br /> cc: - 'Mr. Ron Valinoti , San Joaquin County Public Health Services, Stockton <br /> Mr. L. A. Moldenhauer, Moldenhauer Engineering, Davis <br /> Ms. Brook Birkie, Neumiller & Beardslee, Stockton <br /> Mr. Dan Nomellini , Stockton <br />