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CALIFORNIA REGIONAL WATER QUALITY CONTROL REGIONAL BOARD <br /> CENTRAL VALLEY REGION <br /> ORDER NO. R5-2002-0220 <br /> WASTE DISCHARGE REQUIREMENTS <br /> FOR <br /> TEICHERT AGGREGATES <br /> TRACY ROCK PLANT <br /> SAN JOAQUIN COUNTY <br /> The California Regional Water Quality Control Board, Central Valley Region(hereafter <br /> Regional Board), finds that: <br /> 1. Teichert Aggregates submitted a Report of Waste Discharge (RWD) dated 29 March 2002 <br /> to apply for revised Waste Discharge Requirements for land disposal of industrial <br /> wastewater generated at the Tracy Rock Plant. Additional information was submitted on <br /> 18 July 2002. <br /> 2. The Tracy Rock Plant is at 29099 South Macarthur Road, Tracy in Section 16, T3S,RSE, <br /> MDB&M as shown on Attachment A, which is attached hereto and made part of the Order <br /> by reference. The facility is comprised of Assessor's Parcel Numbers 253-120-12, 14,17, <br /> 18, 21, and 27. <br /> 3. The aggregate excavation area,processing and discharge areas, and aggregate washing <br /> equipment are owned and operated by Teichert Aggregates, hereafter known as <br /> "Discharger." The aggregate excavation area,known as the Pereira Property, comprises <br /> approximately 100 acres, about 85 of which are considered minable by the Discharger. <br /> 4. Order No. 5-01-144, adopted by the Regional Board on 14 June 2001, prescribes <br /> requirements for land disposal of an average of 6.0 million gallons per day(mgd) of <br /> aggregate wash water. This Order is no longer adequate because the Discharger wishes to <br /> change the discharge area. <br /> Existing Facility and Discharge <br /> 5. The Tracy Rock Plant is an aggregate mining and processing facility that discharges <br /> approximately 1.9 to 5.8 million gallons per day(mgd) of wastewater from sand and gravel <br /> washing operations to a settling/recycling pond system. <br /> 6. The facility was constructed in 1930 and has operated consistently since then. The <br /> Discharger has owned the facility since the 1950's, and the Regional Board became aware <br /> of its existence in December 2000. Waste Discharge Requirements were first adopted in <br /> 2001. <br /> 7. The processing plant occupies approximately 10 acres and produces approximately 1.5 <br /> million tons of aggregate per year. The facility includes a scalehouse, office, equipment <br /> shop, and an equipment wash area. Processing equipment consists of wash screens and <br /> drums, crusher, and vibratory screens. <br />