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V I%d <br /> March 24, 2005 <br /> NOA Project Number: E05025A <br /> 6.7 Discussion of Percolation Test Results <br /> The soils within the sewage disposal areas of the proposed Parcels 1 and 2 have demonstrated a <br /> satisfactory percolation rate in accordance with the requirements of the EHD. The soils of these <br /> parcels appear to be suitable for a septic system utilizing shallow leach lines or a filter bed. <br /> 4 6.8 Discussion of Septic System Sizing <br /> Septic system construction should follow the San Joaquin County On-Site Wastewater Disposal <br /> Standards where applicable. <br /> 7.0 CONCLUSIONS <br /> In summary, satisfactory percolation rates of the soil were achieved in the proposed septic disposal <br /> areas of the parcels. The proposed Parcels 1 and 2 appear suitable for a standard septic system. <br /> No ground water was encountered in any of the borings drilled on the property.The depth to <br /> 6 ground water was found to be approximately 20-30 feet below the ground surface for the period of <br /> Fall 1998 and Spring 1999. The on-site water wells were tested for nitrate and DBCP. DBCP was <br /> non-detectable in both wells,and the nitrate concentration in ground water was found to be 8.46 <br /> L mg/L-NO3 in the northern well and 37.3 mg/L-NO3 in the southern well,both concentrations are <br /> below the maximum contaminant drinking water limit of 45 mg/L-NO3. <br /> L <br /> L <br /> 6. <br /> 10 <br /> 6a <br />