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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION ORDER N0. 79-96 WASTE DISCHARGE REQUIREMENTS 19A 0 19,0 z FOR BEAVER CHEMICAL COMPANY SA�N ia,OUli�d SAN JOAQUIN COUNTY 4LTJ_1-D!1 The California Regional Water Quality Control Board, Central Valley Region, (here- after Board) , finds that: 1. Beaver Chemical Company proposes to discharge 2000 gallons (7.6 x 10 1/sec) per day of Industrial waste from wash down and clean up operations to clay lined evaporation ponds. Groundwater occurs at 90 feet (27.5 m) below surface. 2. Beaver Chemical Company manufactures industrial laundry, janitorial and dairy chemicals and is located in east Stockton, east and adjacent to Hwy 99 at 1448 Shaw Road with surface water drainage to Stockton Diverting Canal which is tributary to the Calaveras River. 3. The beneficial uses of Stockton Diverting Canal and downstream waters are: agricultural supply; recreation; esthetic enjoyment; and preservation and en- hancement of fish, wildlife, and other aquatic resources. 4. The beneficial uses of the groundwater are irrigation and domestic supply. 5. The Board, on 25 July 1975, adopted a Water Quality Control Plan for the Sacramento-San Joaquin Delta Basin. 6. This existing facility is exempt from the provisions of the California Environ- mental Quality Act in accordance with Section 2714, Class I of Title 23, Cali- fornia Administrative Code. 7. The Board has notified the discharger and interested agencies and persons of its intent to prescribe waste discharge requirements for this discharge and has pro- vided them with an opportunity for a public hearing and an opportunity to submit their written views and recommendations. 8. The Board in. a public meeting heard and considered all comments pertaining to the discharge. IT IS HEREBY OREDERED, that Beaver Chemical Company shall comply with the following: A. Discharge Prohibitions: 1. The direct or indirect discharge of wastes to surface waters or surface water drainage courses is prohibited. 2. Bypass or overflow of untreated or partially treated wastes is prohibited. 3. The discharge to unlined ponds that permit the percolation of waste to under- lying groundwater is prohibited.