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` Kennedy/Jenks Consultants Currently, all process water and Facility stormwater drains to two adjoining sumps, which are referred to as the primary and secondary sumps by Facility personnel (Figure 3), and subsequently the process water and stormwater is pumped to the vineyards for land application treatment and irrigation. During the non-irrigating season, typically October through March, the process water has been applied to a network of furrows in the vineyard using a piping manifold with various risers and valves located at the end of 3-foot wide by 2-foot deep triangular furrows that are plowed between the vines. Once the process water has been applied to a furrow, the valve is closed and another valve at the end of the next furrow is opened. By utilizing such an alternating pattern for process water disposal, the Facility can distribute process water over the 286 acres of vineyards to achieve evaporation, treatment, and percolation of process water in soils between the vineyard rows prior to the next application. Between each process water application, each furrow is allowed to dry and then plowed with a disc within 10 to 30 days after r the field is dry prior to the next process water application. During the irrigating season, typically April through September, the Facility has supplemented process water with water from South San Joaquin Irrigation District (SSJID) or irrigation wells to ` meet the water demands of the vineyards. In addition to the generation of process water, sanitary wastewater is generated at the Facility by approximately 300 employees. This sanitary wastewater is treated using various independent septic tank/leach field systems; the locations of the septic tanks and leach fields are shown in Figure 3. Sanitary wastewater is not discussed any further in this report. 1.4 Site Soil Conditions and Hydrogeology 1.4.1 Soil Conditions The topography where the Facility is located is flat and level, and the soils are predominantly sandy foams. Soil permeabilities range from moderately rapid to rapid, with water intake rates ranging from 1.5 to 3.0 inches per hour. A general description of the physical and chemical properties for the different soil types underlying the Facility and surrounding vineyards was obtained from the Soil Survey for San Joaquin County, California issued in October 1992 by the United States Department of Agriculture Soil Service (USDA, 1992). According to USDA, the three soil types at the Facility and surrounding vineyards are: Delhi Loamy Sand, Honcut Sandy Loam, and Veritas Fine Sandy Loam. These three types of soil are described below, and the approximate areal ` distribution of the soil types across the Facility is shown in Figure 4. • Delhi Loamy Sand—The soil is very deep, somewhat excessively drained, nearly level on dunes. It is formed in wind-modified alluvium derived from granitic rock sources. The ` surface layer is grayish brown and light brownish gray loamy sand about 16 inches thick. _ The upper 10 inches of the underlying material is grayish brown loamy sand. The lower part to a depth of 60 inches is pale brown sand. In some areas, the surface layer is loamy fine sand or fine sand. Permeability is rapid and the rate of water intake in irrigated areas is 3.0 inches per hour. Runoff is slow, and the hazard of water erosion is Groundwater Protection Work Plan, The Wine Group Page 1-4 j Franzia Winery, Ripon, California p:Vsg p`admNYa+p3'L302G u2_a:neareuGu�:ypp�;wmfyzn5.amrtdoc