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T y <br /> k <br /> �i <br /> The deep test holes were excavated to a depth of 21 feet and 22 feet respectively. All holes were <br /> backfilled with 2 inches "pea gravel". A 2 inch PVC pipe with perforations at the bottom was <br /> installed into the test hole and several feet of gravel was poured in the annular space. <br /> Presatuation of the two deep percolation test holes occurred on May 31, 2005. All holes were <br /> a <br /> filled to 12 inches above bottoms of boring. <br /> 6.4 Description of the Date, Time and Condition of the Test Hole After the 24-Hour Soak <br /> F, Period (Hole Still Intact, Hole Dry, Depth to Water Remaining in Hole, Etc.): On June 1, <br /> 2005 all test holes were dry and deemed suitable for testing. <br /> F06.5 The Test Conformed to San Joaquin County Policy EHD 02-02 (Correct Depth, <br /> diameter, 2" gravel, 6" Water Refill, Correct Readings Recorded): The percolation tests <br /> conformed to San Joaquin County Policy EHD 02-02. <br /> FAl"6.6 Complete p ete Percolation Test Farm (Including Readings) Was Provided With REHS <br /> Verification Signature. The Rate Was Correctly Calculated Using the Last Reading: <br /> F See Appendix for Test Result Form. <br /> TEST HOLE PERCOLATION RATE <br /> 1 (Shallow) 6.58 min/in <br /> s 2 (Shallow) 50.00 min/in ` <br /> 3 (Deep) 19.20 min/in <br /> 4 (Deep) 4.31 min/in <br /> Fi. /."7 Discussion of Any Potential Problems Predicted and/Or the Need for An Engineered or <br /> Alternative Septic System: In this area, the soils are classified as a Bruella sandy loam, Bruella <br /> sandy loam—hard substratum, Exeter sandy loam, and San Joaquin loam—thick surface. Due to <br /> F this classification and percolation rates, a standard septic system similar to those found on <br /> surrounding parcels would be recommended (See Appendix). <br /> /6.8 Discussion of Percolation Rates in Relation to the Type, Size and Location of future <br /> leach fields at the site: Based on the results of the percolation rates and the soils profile, it is <br /> Dillon&Murphy's opinion that the subject proposed parcels are suited for a typical on-site <br /> F sewage disposal system. This system should be properly designed and installed according to the <br /> current San Joaquin County criteria for standard septic systems. <br /> F, Based on the depth to groundwater in the area, and the size of the proposed parcels, it is our <br /> opinion that the installation of any new proposed septic system, if properly installed, should not <br /> dversely affect the quality of groundwater in the area. <br /> Ei <br /> F,� <br /> F� 4 <br /> U <br /> ca04201soil Report <br />