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- 7 - ORDER NO.R5-2002-0148 INFORMATION SHEET MUSCO FAMILY OLIVE COMPANY AND THE STUDLEY COMPANY WASTEWATER TREATMENT AND LAND DISPOSAL FACILITY SAN JOAQUIN COUNTY The odor complaints concerned the Discharger's land application areas, especially the eastern portion where the Discharger constructed and then flooded several irrigation checks. The Regional Board has also received several written complaints addressing wastewater that reportedly discharged from the Discharger's property. Staff has documented discharges of wastewater from the site. During the summer of 2002, the Discharger pumped out the standing water in two of the eastern checks, has pumped out water in two of the three illegal ponds built within the surface water drainage course, and is "carefully managing" wastewater applications on the eastern side of the property. However, these steps have not been sufficient to prevent the continuing odor complaints. Because the four fields labeled "irrigation checks" are the closest fields to off-site residences, this Order prohibits the application of wastewater to these fields unless the Discharger can prove to the Executive Officer's satisfaction that wastewater application to this land will not cause offsite odors. It is anticipated that the installation of aerators in the 84-million gallon pond, and the subsequent reduction in BOD,will lead to a reduction in odors. The Discharger has stated that to prevent future odors it will rotate wastewater application in the land application areas to minimize tailwater generation,provide soil drying time, and carefully manage wastewater application at the eastern property boundary. Ponded wastewater in the drainage feature will also be controlled,primarily by the installation of collection ditches at land application areas. The 84- million gallon storage pond will be equipped with a total of 390 horsepower of mechanical aerators and monitored on a daily basis. Odors that may arise from sludge being uncovered as the wastewater storage pond level is lowered during the summer will be controlled using a pumped sprayer to deliver alkaline odor control chemicals. Additional odor suppression chemicals (calcium or sodium nitrate)to provide supplemental oxygen in the event the aerators are insufficient will be stored on site. Sulfide precipitating ferrous chloride will also be stored on site. These proposed steps have been incorporated into this Order. OTHER WASTE STREAMS Solid waste generated at the site includes olive pits, stem waste, waste olives, screened solids, steel cans, and cardboard,plastic, paper, and miscellaneous trash. Olive pits and stems are sold as biomass and burned at cogeneration plants or pulverized and incorporated into compost. Waste olives are transported offsite for animal feed or offsite land disposal. Screened solids are transported offsite for land disposal at a landfill. Steel cans, plastic, paper, and miscellaneous trash are hauled by a disposal company to a landfill. Because the Discharger has failed to identify the disposal of all waste products generated at the facility, it is required to submit a Solid Waste Management Plan that more fully describes how it manages all of its solid waste products. Domestic wastewater is discharged to a septic system, leachfield, and seepage pits. The Discharger has reevaluated the domestic wastewater system as required by Time Schedule Order No. R5-2002-014 and determined an expansion is required. The Discharger will expand the existing septic system by adding four additional 95-feet long leach lines that will each terminate with a 25-feet deep seepage pit. The Discharger has stated that it will no longer apply wastewater over the leach lines or seepage pits, and this Order contains a Prohibition to that effect.