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V n <br /> May 26, 2005 <br /> NOA Project Number: E05053A <br /> No ground water was encountered by the staff of Neil O. Anderson &Associates, Inc. during the <br /> - drilling of the percolation test holes to a depth of 25 feet on May 13 and 16, 2005. <br /> 4.2 Potential Ground Water Contamination Issues <br /> Identifying potential ground-water contamination sources was not part of the scope of work for the <br /> soil suitability study. Potential ground-water contamination can occur from a number of sources <br /> which often include leaky underground storage tanks, agricultural activities, dairies, septic systems, ! <br /> and storm water infiltration. Agricultural activities, dairies, and the use of septic systems in the area <br /> should be considered potential ground-water contamination sources. <br /> 4.3 Water Sample Location <br /> 0 No ells exist on the site. No well permits were found during file review at EHD on April 6,2005. <br /> No water sample was taken for the property. <br /> 5.0 SOIL PROFILE AND GEOLOGIC INFORMATION <br /> PThe Site is depicted on the USGS Preliminary Geologic Map of the Bellota Quadrangle (1979) as <br /> within the Quaternary Modesto Formation (upper member). This unit is a Foothill-derived alluvial <br /> F11 silt, clay, and minor sand forming terraces, upper fans and following distributaries across lower fans; <br /> abundant volcanic detritus (Plate 7). <br /> The surface and near surface soils located at the Site are reported by the San Joaquin County Soil Survey <br /> to be composed of Boggiano clay loam, 0-2% slopes and Cogna loam, 0-2% slopes(Plate 8) (USDA, <br /> 1992). Table 3 presents some selected properties of these soils: <br /> 1 '• <br /> flk <br /> s <br /> Fj <br />