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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION CLEANUP AND ABATEMENT ORDER NO. 5-00-717 FOR MUSCO OLIVE PRODUCTS AND THE STUDLEY CORPRATION MUSCO OLIVE PRODUCTS, TRACY FACILITY SAN JOAQUIN COUNTY This Order is issued to Musco Olive Products and the Studley Corporation (hereafter known jointly as "Discharger")based on provisions of California Water Code Section 13304 which authorize the Regional Water Quality Control Board, Central Valley Region(hereafter known as Board) to issue a Cleanup and Abatement (C&A) Order. The Board finds, that with respect to the Dischargers' acts, or failure to act, the following: 1. Musco Olive Products is an olive brining and packaging plant south of the town of Tracy, near Patterson Pass Road. The facility(Assessor's Parcel Number 251-3200-08) is in Section 4, T3S, R4E, MDB&M. Musco operates the facility on land leased from the Studley Corporation. 2. Wastewater generated at the facility is regulated by two separate waste discharge requirements. Order No. 96-075 regulates the Class H surface impoundments that are used to store concentrated brines, while Order No. 97-037 regulates the less concentrated wastes which are applied to land. This C&A Order only addresses violations of Order No. 97-037 in regard to the wastewater reclamation activities. 3. The facility processes olives on a year-round basis. Wastewater generation occurs from September to June, with the highest flows occurring in January and February. Recent self- monitoring reports show that the average daily flow ranges from 400,000 gallons per day(gpd) to 600,000 gpd, but has ranged up to 969,000 gpd. The wastewater quality is relatively constant all year, with total dissolved solids (TDS) concentrations ranging from approximately 2,500 to 4,568 mg/l. Dissolved inorganic solids (DIS) concentrations generally range from approximately 1,300 to 2,750 mg/l, with an average concentration of 2,030 mg/l. Sodium and chloride are also present at elevated concentrations in the wastewater. Sodium has been reported at concentrations of approximately 550 to 650 mg/1; chloride has been reported at concentrations of approximately 240 to 680 mg/l. 4. The Musco facility is on approximately 320 acres, of which approximately 200 acres are available for land application of process wastewater.' Wastewater is currently spray irrigated to 100 acres of forage grass, consisting of volunteer weeds and grass, at a rate of approximately 48 inches per year. Prior to land disposal, the wastewater is first discharged to a one-million gallon storage pond. 5. Due to the closure of other olive packing plants, Musco submitted a January, 2000 Report of Waste Discharge seeking to increase both the allowable flow rate and the TDS limits for wastewater applied to land. The application seeks to increase the flow by 350,000 gpd and to increase the DIS effluent limit by 1,116 mg/1. Staff have determined that the RWD is incomplete because the Discharger has failed to demonstrate that these increases will not adversely impact surface water or groundwater quality.