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S <br /> June 23,2006 <br /> NOA Project Number: E05165B <br /> demonstrate a satisfactory percolation rate within the proposed septic system disposal field of each <br /> parcel to utilize a standard septic system. Details of the percolation tests are summarized in Table 4. <br /> Table 4. <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 3.12 3.47 4 hours Satisfactory percolation rate <br /> P-2 Shallow 3.23 3.78 4 hours Satisfactory percolation rate <br /> P-3 Shallow 3.20 3.571 4 hours Satisfactory percolation rate <br /> P-4 Shallow 3.30 3.57 4 hours Satisfactory percolation rate <br /> P-5 Shallow 3.20 2.47 4 hours Satisfactory percolation rate . <br /> P-6 Shallow 3.1 2.19 4 hours Satisfacto ercolation rate <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 stan d septic system. <br /> 6.8 Discussion of Septic System Sizing <br /> Septic System Construction should follow the San Joaquin County On-Site Wlastexater 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 project is suitable for development provided the following additional steps are <br /> �• taken to minimize potential nitrate impacts to the ground water due to very rapid percolation rates. <br /> Utilize standard filter bed septic system design as described by the EHD with the <br /> following modifications: <br /> 9 <br />