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*14"W 1"001 <br /> September 9,2005 <br /> NOA Project Number: E05106B <br /> Table 5. <br /> Summary of Percolation Tests. <br /> Test No., Percolation Percolation Rate Test Comment <br /> Date Tested Test Depth(ft) (minutes/inch) Duration (see notes) <br /> P-1 shallow,8-19-05 2.9 20.83 4-hr Satisfactory percolation rate <br /> (Parcel 1) <br /> P-1 deep,8-19-05 21.96 5.0 4-hr. Satisfactory percolation rate <br /> (Parcel 1) <br /> P-2 shallow,8-19-05 3.53 6.25 4-hr. Satisfactory percolation rate <br /> (Parcel 2) <br /> P-2 deep,8-19-05 22.47 5 4-hr. Satisfactory percolation rate <br /> �. Parcel 2 <br /> Note: A satisfactory percolation rate for a"shallow'test is less than or equal to 60 minutes per inch. <br /> A satisfactory percolation rate for a"deep"test is less than or equal to 30 minutes per inch. <br /> 6.7 Discussion of Percolation Test Results <br /> The soils within the sewage disposal areas of the site have demonstrated a satisfactory percolation <br /> rate in accordance with the requirements of the EHD for the use of a standard septic system. <br /> 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 Site. The septic disposal areas of the proposed parcels appear suitable for a standard <br /> septic system. <br /> No ground water was encountered in any of the borings drilled on the property. The depth to <br /> ground water was found to be between approximately 80 and 100 feet below the ground surface for <br /> the period of Fall 1998 and Spring 1999. The on-site water well was tested for nitrate and DBCP. <br /> ` DBCP was non-detectable, and nitrate concentration in ground water was found to be 29.2 mg/L- <br /> NO3,which is below the maximum contaminant drinking water limit of 45 mg/L-NO3. <br /> 10 <br />