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X ' <br /> • • J . H . KLEI N FELD ER & ASSOCIATES <br /> GEOTECHNICAL CONSULTANTS • MATERIALS TESTING <br /> LAND & WATER RESOURCES <br /> 2825 EAST MYRTLE STREET <br /> STOCKTON. CALIFORNIA 95205 File No. 20-2250-04 RD <br /> (209) 948-1345 December 11, 1986 <br /> Joe & Brijida Alvarez <br /> c/o Don Cose & Associates OEC 18 19so <br /> Post Office Box 326 <br /> Tracy, California 95376 ENVIROMENTAL HEALTH <br /> Attention: Mr. Don Cose `FERMIUSERVICES <br /> Subject: PERCOLATION TEST/ALVAREZ PROPERTY <br /> LOCATED OFF McARTHUR DRIVE <br /> SAN JOAQUIN COUNTY, CALIFORNIA <br /> MS-87-19 <br /> Dear Joe & Brijida: <br /> As requested on ;November 26, 1986, a representative of our firm performed a <br /> percolation test at the subject site located off McArthur Drive in San Joaquin <br /> County, California. <br /> The percolation test hole was drilled with our truck-mounted drill rig and <br /> set-up on December 8, 1986. The test hole was drilled to a depth of approxima- <br /> tely 36 inches and 4-inch diameter perforated PVC pipe was inserted into the <br /> test hole. The test hole was filled to the surface with relatively clean water <br /> on December 9, 1986, and left to soak overnight. <br /> On December 10, 1986, a representative of our firm returned to the site to <br /> perform the percolation test. The test was performed according to San Joaquin <br /> County guidelines and the last 30 minutes was observed by a County Health <br /> Officer. The percolation test was measured to have a percolation rate of <br /> approximately 40 minutes per inch. A copy of the county approved test sheet is <br /> attached to this letter. We note that the County Sanitarian, Mike Higgins, <br /> inadvertently failed to sign the test sheet. <br /> We trust this letter presents the information requested at this time. If <br /> you have any questions regarding this project, please contact us. <br /> Respectfully submitted, <br /> J. H. KLEINFELDER & ASSOCIATES <br /> Ron Heinzen, C. E. <br /> SRD:rls <br /> ,MD42/attachment ' <br /> cc w/:attach.: San .Joaquin Countv Local Health D' trictl� Odd n� <br /> Schack & Quartaroli <br /> f <br /> , 1 / egq <br />