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File No. 20-3397-02 k" KLEINFELDER <br /> March 19 , 1991 <br /> problems known to exist with this method of sewage <br /> disposal. Our representative was not able to auestion <br /> any residents at the three locations visited. However, <br /> he was able to auestion the previous owner of portions <br /> of the property, Mr. Stefani. Mr. Stefani was not able <br /> to aive our representative any information on the <br /> performance of septic systems in the are: . However, he <br /> did not know of any major problems associated with the <br /> septic systems. He did report that water obtained from <br /> the well at lccaticr. 1 was "bad" tasting and is <br /> considered nonnotable. <br /> ITEM C-2 : <br /> "The Suitability of the soil for development utilizing septic <br /> systems . " <br /> On March 7 , 1991, a representative of our firm drilled <br /> and set-up one 3-foot deep percolation test hole on each <br /> of the four proposed parcels. The test holes were <br /> drilled with hand drilling equipment using a 6-inch <br /> diameter continuous-flight auger. Perforated PVC pipe <br /> was inserted into' the test holes to prevent disturbance <br /> when addinc water. The test holes were filled with <br /> relatively clean water the day before testing and were <br /> left to soak overniaht. <br /> On March 3 and March 12 , 1991, our representative <br /> returned to the site to perform the 3-foot deep <br /> percolation tests . As per San Joaquin County guidelines , <br /> the tests were performed for a period of 4 hours. The <br /> last 30 minutes of each test were used to calculate the <br /> percolation rates . In order to use standard leach lines, <br /> Copyright 1991 KLeinfelder, Inc. 3 <br />