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INFORMATION SHEET <br /> ORDER NO. 5-01-055 <br /> TRI VALLEY GROWERS PLANT NO. 4 <br /> STOCKTON, SAN JOAQUIN COUNTY <br /> Tri Valley Growers operates a tomato and cherry processing facility at 3200 East Eight Mile <br /> Road. Surface water drainage is to Bear Creek. Water is provided by an on-site supply well. <br /> Wastewater generated at the plant is discharged to land application areas located adjacent to the <br /> processing facility. <br /> The Discharger is considering sale of 111 acres of land application area. As a result of <br /> considering the sale of this property, the Discharger was required to submit a Report of Waste <br /> Discharge. <br /> The facility processes and cans fresh tomatoes and tomatoes from storage bags. Cherries are <br /> stemmed, brined, pitted, sliced, and dyed but not canned on site. Fresh tomato processing season <br /> occurs from July to September, tomato reprocessing occurs from February to March; cherries are <br /> processed the remainder of the year. Wastewater flows are highest during the fresh tomato <br /> season. Wastewater is discharged to a wastewater sump where it is pumped to rotary screens and <br /> then discharged to the application areas. Solids are placed in hoppers and disposed of as animal <br /> feed. <br /> The water balance presented in the Report of Waste Discharge indicates rainwater will pond at <br /> the surface during the wet months. Surface soils in the land application area consist of the <br /> Jacktone Clay which possess a low infiltration rate (0.06 in/hr). Because land application of <br /> wastewater is not allowed when the soil is saturated, this Order requires construction of <br /> wastewater storage facilities or ceasing all wastewater discharge during rain events when the soil <br /> is saturated. <br /> Wastewater is characterized by high organic matter and dissolved solids content. Despite <br /> improvements in the concentration of dissolved solids in the facility wastewater, further <br /> reductions are required by this Order. <br /> The discharge flow rate limit varies according to season. The 30-day average discharge to the <br /> designated land application areas shall not exceed 500,000 gpd in the months from October to <br /> April, and 1,500,000 gpd in the months from May to September. <br /> Groundwater at the facility is approximately 55 feet below ground surface. Groundwater flow <br /> direction is to the southeast and is controlled by groundwater extraction wells operated by the <br /> City of Stockton. <br /> Groundwater at the land application area is monitored by five existing groundwater monitoring <br /> wells. Well MW-5 is located in the parcel that has been sold and may not be available for future <br />