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STAFF REPORT Richard A. Stagno Stagno's Meat Company Waste Disposal Facility San Joaquin County On 2 April 1998, Richard A. Stagno (Discharger) submitted a Report of Waste Discharge (RWD) for a self-contained meat processing facility. The Discharger proposed installation of a slaughterhouse, to be known as Stagno's Meat Company, at a former poultry facility which operated as Hayre's Eggs. The proposed site is approximately 2 miles northwest of Lathrop in San Joaquin County. The facility will occupy 13.5 acres and will contain holding pens, a slaughterhouse, a manure storage area, a stormwater detention pond, a wastewater treatment pond, and a designated disposal area (cropland). The site will also have a paved parking area as required by San Joaquin County. Approximately 500 animals will be slaughtered daily consisting primarily of market pigs,but also calves, sheep, and goats. The facility will operate 5 days per week, year round, under continuous inspection by the U. S. Department of Agriculture. Background Five types of wastes will be produced from this facility: manure solids, manured wastewater, rinsewaters from the slaughterhouse, solid animal waste, and whole blood. Manure solids from the holding pens will be scraped to a concrete lined and covered manure storage area. During the first year of operation, the manure solids must be hauled off-site. If the cropland soil analytical results from the previous year of operation indicate that the soil is deficient in nutrients then the Discharger may apply the manure to the cropland prior to planting during the following year of operation. Manured wastewater will be produced from the periodic washdown of the pens and will be pumped to the wastewater treatment pond. Rinsewaters produced from animal, carcass, and kill-floor rinsings in the slaughterhouse will be treated using a septic tank and grease trap prior to discharge to the wastewater treatment pond. Approximately 14,550 gallons of wastewater will be discharged to the wastewater treatment pond daily. The Report of Waste Discharge characterized the wastewater as potentially containing 550 milligrams per liter(mg/1) of Biochemical Oxygen Demand; 150 mg/1 of Total Suspended Solids, 160 mg/l of Total Kjeldahl Nitrogen, and with a pH of 8.0. Discarded portions of the carcasses and any screenings, fats, oils, or greases retained by the grease trap will be collected by the tallow operation. The tallow operation will make daily trips to the facility. Whole blood will be captured and stored in a tank for edible food processing. Both solid animal wastes and whole blood will be prohibited from being discharged to the wastewater treatment pond. The wastewater treatment pond, which is currently partially constructed, is approximately 165 by 165 by 8 feet deep. The RWD proposed lining the pond with 30-mil high density polyethylene plastic. The base of the pond is four feet below grade and approximately 5 feet above groundwater. Fencing and warning signs will be installed around the pond and the existing stormwater detention basin. The location of partially constructed wastewater treatment pond is not consistent with the proposed location in the California Environmental Quality Act (CEQA)documents. The pond was constructed, c:\ckwfiim\agficulture\agwdn\stagno\stafftpt