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hn KLEINFELDER <br /> File No . 20-2662-06ND <br /> February 28 , 1990 <br /> slotted PVC pipe to avoid disturbance of the soils when the water <br /> was poured into the pipe . The percolation tests were performed on <br /> February 21 , 1990 by a representative of our firm. The test holes <br /> were filled with approximately 3 feet of relatively clean water the <br /> day before the tests were performed and left to soak overnight.' <br /> Our representative returned to the site to perform the percolation <br /> tests in accordance with guidelines outlined by San Joaquin County. <br /> The last 30 minutes of each test was observed by a County <br /> sanitarian. The results of all the percolation tests performed for <br /> this project are presented on Table I, included with this letter . <br /> We trust this letter presents the information required at thi <br /> time . Copies of the county approved sheets for the 5 recentli <br /> performed deeper tests are included with this letter. If you have <br /> any questions regarding this project, please contact us . <br /> Respectfully submitted, <br /> KLEINFELDER, INC. <br /> 4t�-z7b � <br /> Steven R. Davis <br /> Staff Geologist <br /> Patrick C. Dell, C.E . <br /> Project Engineer <br /> SRD: rlp/MD4/cc: San Joaquin County Environmental Health <br /> 2 <br />