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� J <br /> January 27,2005 <br /> NOA Project Number: E04070B <br /> Page 3 <br /> Soil Profile <br /> Depth Soil T e Descriptio,. <br /> 0-6" CL Black silty clay,slightly moist <br /> 6"-5' CL-ML Dark brown silty clay,moist <br /> 5-10' SM Yellowish brown clayey silty sand <br /> 10-15' ML Mottled gray brown with reddish brown silty clay,stiff,damp <br /> 15-20' ML Light brown clayey silt,stiff but crumbly with white-streaks,moist <br /> 20-25' MLrCL Rust mottling of light gray and yellowish brown silt,damp <br /> 25-30' ML Reddish brown with rust mottling silt,very damp <br /> 30-35' CL-ML Reddish brown with rust mottling,white streaks,black organic matter streaks, <br /> clayey silt,very damp <br /> 35-40' SM Reddish brown fine silty sand,sandy silt,moist. <br /> 40-45' CL-ML Brown with black organic matter streaks,clayey silt,'stiff,moist <br /> Within the exploratory boring were 30 total feet of silty clay to clayey silt, 10 total feet of silt, and 5 <br /> total feet of silty sand,with horizontal-layering of soils which decreases vertical infiltration. Soils' <br /> with horizontal layers of clay mixtures tend to particularly attenuate infiltration. The soils in the <br /> boring show limited potential for percolation. Below the 45-foot soil boring, there are an additional <br /> 60 feet of soil to groundwater. <br /> The Nitrate Loading Study Soil.Suitability Study prepared for Morada Produce by Valley Ag Research' <br /> included a hydraulic conductivity test intended to determine the rate of groundwater infiltration near <br /> the storage pond. According to that report, "the test results show the hydraulic conductivity of the <br /> i subsoil silt strata possess a comparatively slow permeability and suggest it would theoretically take a <br /> j water molecule approximately 9,141 days or 25 years to travel from near the soil surface to the water <br /> table,.-95 ft below grade." <br /> Fill <br /> 2004 Monitoring Data <br /> F1Influent Monitor <br /> Influent water to the wastewater-pond was generated between April 19 and June 7, 2004. Weekly <br /> influent samples were analyzed for Biological Oxygen Demand (BOD) and pH during the weeks in <br /> F1 which influent was generated. The influent water samples were collected during cherry and <br /> asparagus processing, and do not include contributions from storm water runoff. The cherry wash <br /> F1water sample was collected inside the cherry building at the collection sump for the cherry wash <br /> F13Valley Ag Research,Nitrate Loading Study Soil Suitability Study,Foppiano Ranch,November 19,2001. <br /> F', <br />