SU0004516 SSNL - Laserfiche WebLink

Home Browse Search

December 20, 2004 NOA Project Number: E04139A 6.6 Percolation Test Forms and Results The completed percolation test form is included in the appendix of this report. r. A shallow percolation test is defined by the EHD as being between 36 and 42 inches in depth;a satisfactory percolation rate for a shallow test is less than or equal to 60 minutes per inch drop. Details of the percolation tests are summarized in Table 5. Table 5. — Summary of Percolation Tests — Test No., Percolation Percolation Rate Test Comment Date Tested Test Depth(ft) (minutes/inch) Duration (see notes) P-1 shallow,12-17-04 3.06 25 4-hr. Satisfactory percolation rate. Note: A satisfactory percolation rate for a"shallow'test is less than or equal to 60 minutes per inch. �• A satisfactory percolation rate for a"deep"test is less than or equal to 30 minutes per inch. k1 6.7 Discussion of Percolation Test Results 6m The soils within the sewage disposal area demonstrated a satisfactory percolation rate in accordance with the requirements of the EHD. The soils of these parcels appear to be suitable for a septic 60 system utilizing shallow leach lines and seepage pits or a filter bed. i/6.8 Discussion of Septic System Sizing Septic System Construction should follow the San Joaquin County On-Site Wastewater Di poral Standards where applicable. i% 7.0 CONCLUSIONS In summary, satisfactory percolation rate of the soil was achieved in the proposed septic disposal area. The proposed Parcel appears suitable for a standard septic system. bin No ground water was encountered in any of the borings drilled on the property.The depth to ground water was found to be approximately 130-140 feet below the ground surface for the period r. of Fall 1998 and Spring 1999. The site will be using the city water system so there is no need to test for nitrate and DBCP. ism 8