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September 21,2005 NOA Ptoject Ntunber:E05104A 2005NOV 6 Table 4. At1 10. 0 1 Summary of Percolation"Tests. S 4 td JU r , .. , HEEr4v ?0 COL !I, L 71 NY, ` A Test No., Percolation Percolation Rate Test Comment Date Tested Test Depth(ft) (minutes/inch) Duration (see notes) P-1 deep,8-16-05 24.4 250 4 hours Unsatisfactory, percolation rate, fail P-1 shallow,8-16-05 3.45 &33 4 hours Satisfactory percolation rate P-2 deep,8-16-05 Unsatisfactoxy percolation mte, 245 83.3 4 hotus fail P-2 shallow, 8-16-05 3.25 5.43 4 hours Satisfactory percolation rate P-3 deep,8-16-05 24.8 41.66 4 hours Unsatisfactory petcolatio�i rate, fail P-3 shallow,8-16-05 3.19 13.88 4 hours Satisfactory percolation rate P-4 deep,8-10-05 24.6 6.09 4 hours Satisfactory percolation rate P-4 shallow 8-10-05 Unsatisfactory percolation rate, L3.4 125 4 hours fail P-5 deep 8-10-05 31.25 4 hours Unsatisfactory percolation rate, fail P-5 shallow 8-10-05 50 4 bourn Satisfactory percolation.rate P-6 deep 8-10-05 20.83 4 hours Satisfactory petcolation tate P-6 shallow 8-10-05 9.25 4 hours Satisfactory percolation rate P-7 deep 8-10-05 23-62 41.66 4 hours UnsatisfactoryrcoLltioa rate, , P-7 shallow 8-10.05 3.05 8.06 4 hoots 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. 6.7 Discussion of Percolation'Test Results The soils within the sewage disposal areas have demonstrated a satisfactory percolation rate in accordance with the requirements of the FWD fat the use of a standard septic systern. 6.8 Discussion of Septic System Sizing Septic System Construction should follow the San Joaquin County On-Site WartewatrrDirposal Standards where applicable or other engineering recommendations. 10