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J. H. KLEI N FELD ER & ASSOCIATES <br /> GEOTECHNICAL CONSULTANTS • NIATERIALS TESTING <br /> LAND & WATER RESOURCES <br /> 2825 EAST MYRTLE STREET <br /> STOCKTON CA o;20;-4'11-1 <br /> 12091 a48-1:a: <br /> File No. 20-1181-87 <br /> October 13, 1987 <br /> Mr. Darryl Holfman <br /> 122191 East Louise Avenue N <br /> Manteca, California 95336 �p HEALTH <br /> � <br /> o�,n�NsERv <br /> Subject: PERCOLATION TEST/HOLFMAN PROPER'L'YN"�1ER1JI1�/ ICES <br /> 12191 EAST LOUISE AVENUE <br /> SAN JOAQUIN COUNTY, CALIFORNIA <br /> M S-ff-tff- <br /> 88-10 <br /> Dear Mr. Holfman: <br /> As requested on October 6, 1987, a representative of our firm performed a <br /> percolation test at the subject site located at 12191 East Louise Avenue in <br /> San Joaquin County, California. <br /> The percolation test hole was hand drilled and set-up on October 4, 1987, <br /> by a representative of our firm. The test hole was excavated to a depth of <br /> approximately 36 inches and 4-inch diameter perforated PVC pipe was inserted <br /> into the test hole. The test hole was then filled to the surface with relati- <br /> vely clean water and left to soak overnight. <br /> On October 6, 1987, a representative of our firm returned to the site to <br /> perform the perform the percolation test. The test was performed according to <br /> San Joaquin County guidelines and the last 30 minutes was observed by a county <br /> health officer. The percolation test was measured to have a percolation rate of <br /> approximately 30 minutes per inch. A copy of the county approved test sheet is <br /> attached to this letter. <br /> We trust this letter presents the information requested at this time. If <br /> you have any questions or need additional information, please contact us. <br /> Respectfully submitted, <br /> J. H. KLEINFELDER & ASSOCIATES <br /> C � <br /> Ron Heinzen, C. E., G. E. <br /> AM�M:rls <br /> MD50/Attachment <br /> OTHER OFFICES. <br /> Walnut Creek•Sunnyvale•San Ramon•Sacramento•Fresno•Fairfield•Rohnert Park•.Merced•Los Angeles•Reno•Las Vegas•St.Ceorge, Utah•Denver <br />