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November 19,2004 <br /> NOA Project Number: E04107A <br /> 6.6 Percolation Test Forms and Results <br /> The completed percolation test form is included in the appendix of this report. <br /> A shallowp ercolation test is defined by the EHD as being between 36 and 42 inches in depth; a <br /> satisfactory percolation rate for a shallow test is less than or e uc L6 m�_��er inch drop. One <br /> percolation test must demonstrate a satisfactory percolation rate within the proposed septic system <br /> disposal field of each parcel. Details of the percolation test are summarized in Table 4. <br /> . Table 4. <br /> Sum -ary of Percolation Test <br /> Test No., Percolation Percolation Rate Test Comment <br /> Date Tested Test Depth(ft) (minutes/inch) Duration (see notes) <br /> P-1, — Satisfactory percolation rate. <br /> Shallow percolation test, 3.5 25 1-hr (Ground water depth was 8.5 <br /> 10-21-04 feet on 10/29/04 <br /> Note:A satisfactory percolation rate for a"shallovd'test is less than or equal to 60 minutes per inch.A satisfactory <br /> 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 subject Parcel demonstrated a satisfactory <br /> percolation rate in accordance with the requirements of the EHD. <br /> 6.8 Discussion of Septic System Sizing <br /> Septic System Construction should follow the San Joaquin County On-Site illastewaterDipp-4 <br /> Staadard . Refer to the attached Nitrate Loading Study for a complete discussion of <br /> the necessary recommendations. <br /> 7.0 CONCLUSIONS <br /> Please see the conclusions discussed in Part II, the nitrate loading study, of this report <br /> 7.1 Signatures <br /> The signatures of the environmental professionals involved in the preparation of this report can be <br /> found at the front of this package. <br /> 9 <br /> j <br />