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STATE OF CALIFORNIA-Environmental ProtecS,,,,Gency Ls PETE WLSON,Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL VALLEY REGION <br /> 3443 Routier Road,Suite A <br /> Sacramento,CA 95W-3098 <br /> PHONE: (916)2553000 <br /> FAX (916)2553015 <br /> 14 April 1993 �' t 'La L, t L.ll <br /> APR 19 1993 <br /> Ms. Marcie R. McCabe ENVIRONMENTAL HEALTH <br /> RESNA Industries, Inc. PERM ifi/SERVICES <br /> 1710 Main Street <br /> Escalon, CA 95320 <br /> GENSTAR/WESTERN STONE PRODUCTS, 8181 WEST ELEVENTH STREET,_ TRACY <br /> We have evaluated the proposed alternatives for disposing the treated <br /> excavation water at the subject site. We have also discussed your disposal <br /> alternatives with MagylWys of San Joaquin County's Environmental Health and <br /> with Robert Sagaser of the City of Tracy's Sewer Treatment Plant. Based on <br /> our discussions with the County and City there are only two of the <br /> alternatives are considered viable; utilization of the water in the concrete <br /> batch plant or a controlled discharge to the ground for dust control and <br /> percolation. Our preferred disposal option (the City's, County's, and the <br /> Regional Board's) is utilization of the treated excavation water in the <br /> concrete batch plant. However, discharge to the ground for dust control and <br /> percolation, is acceptable provided the following precautionary and <br /> housekeeping requirements are met: all areas receiving water must be bermed <br /> or runoff prevented from leaving the Genstar/Western Stone Products property <br /> and discharge water is not to come in contact with any of the stockpiled tank <br /> excavation soils. We also recommend that no vehicle or equipment traffic <br /> occur in the bermed areas for a minimum of two days after all standing water <br /> has percolated into the ground. <br /> If you need any additional information please call me at 916-255-3030. <br /> _ q k"J, <br /> / <br /> MICHAEL H. MOSBACHER, P.E. <br /> Associate WRC Engineer <br /> cc Ms. Mary Meays, Environmental Health, San Joaquin County <br /> Mr. Robert Sagaser, Public Works Department, City of Tracy <br />