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Project No. 1671-01 <br />Job Name Castello Estates <br />FIELD PERCOLATION TEST RESULTS <br />Percolation Test 4, TP-1 Percolation Test 5, TP-2 Percolation Test 6, TP-2 <br />Test Depth: 8 inches Test Depth: 12 inches Test Depth: 12 inches <br />Time Drop Refill Time Drop Refill Time Drop Refill <br /> 9:06 START 6.0 10:45 START _6.0 10:47 START 6.0 <br /> 9:36 1.1 6.0 11:15 2.4 6.0 11:17 2.8 6.0 <br /> 10:06 1.0 6.0 11:45 2.0 6.0 11:47 2.2 -6.0 <br /> 10:36 0.9 6.0 12:15 1.9 6.0 12:17 2.1 6.0 <br /> 11:06 0.8 6.0 12:45 missed 6.0 12:47 missed 6.0 <br /> 11:36 0.9 6.0 13:30 1.8 6.0 13:31 2.2 6.0 <br /> 12:06 0.8 6.0 14:00 1.7 6.0 14:01 2.0 6.0 <br />. 12:36 0.9 6.0 14:30 1.7 6.0 14:31 2.0 6.0 <br />9. 13:06 0.8 6.0 15:00 1.8 6.0 15:01 1.9 6.0 <br />10 13:36 0.8 END 15:30 1.8 END 15:31 1.8 6.0 <br />11 16:01 1.8 END <br /> MPI 37.5 MPI 17.6 MPI 16.7 <br />Based on the procedure established by San Joaquin County, the percolation rate was calculated by <br />considering the smallest reading change observed during the test (Section VII, Procedure 3). These <br />percolation tests were performed by Holdrege & Kull under the guidelines accepted by the San Joaquin <br />County Department of Environmental Health. The results above reflect actual field results. Percolation tests <br />were conducted under the supervision of a registered engineer or engineering geologist from our firm and <br />were periodically observed by a representative of the San Joaquin County Public Health Services <br />Environmental Health Division. <br />Test conducted by J. D. Riley Supervised by Rob Finoerson <br />Title Staff Geologist Registration No. R.C.E. 59813 <br />Date July 16, 2002 County Rep. Steve Shih <br />Client Castello Estates