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10 June 2014 <br /> AGE Project No. 14-3035 <br /> Page 10 of 16 <br /> 7.2. MASS TRANSPORT PROPERTIES OF UNDERLYING SITE SOILS <br /> This deep well-drained rich soil has a high available water-holding capacity. <br /> Additionally, four deep septic leach pits have been installed at the ends of the septic <br /> leach filed lines. The natural fertility of this soil lends it very well to sustainable farming <br /> practices. Permeability is slow, available water capacity is high and the shrink-swell <br /> potential is high. Septic leech fields should have an increased absorption field to <br /> overcome the slow permeability. <br /> 8.0. GROUND WATER ANALYSIS <br /> The subject property water supply well was sampled for nitrate analysis. The well is <br /> located on the central eastern portion of the parcel and access was granted by the <br /> property owner for sampling. <br /> 8.1 . SCRIPTION OF LOCAL GROUND WATER <br /> The San Joaquin County Flood Control and Water Conservation District's Lines of <br /> Equal Depth to Ground Water Fall 2012 indicates the depth to ground water is 100 feet <br /> or more. Ground water is appears to flow to the southeast to southwest in the direction <br /> of the Mokleumne River. AGE performed a ground water query on the California <br /> Department of Water Resources (CDWR) Internet site, http://wel].water.ca.gov. Based <br /> on the CDWR the current depth to ground water surrounding the subject property was <br /> 100 feet to 120 feet bsg (Appendix D). <br /> Based upon a record review conducted at EHD by an AGE representative depth to <br /> water was indicated on well permits for the surrounding area to be between 100-feet <br /> and 100-feet bsg The well on the adjacent property was to a total depth of 350 feet at <br /> 6400 East Peltier Road. <br /> 8.2. EXISTING OR POTENTIAL GROUND WATER CONTAMINATION <br /> The immediately adjacent and outlying land use for the parcel is agricultural in nature. <br /> There are potential groundwater contamination issues associated with agricultural uses <br /> and septic systems. A review of the DTSC Envirostor Database revealed one LUST site <br /> within a two-mile radius of the site. The site has been closed for more than 10 years and <br /> is located more than one-mile from the subject parcel. <br /> Advanced GeoEnvironmental,Inc. <br />