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k" KLEI N FELDER <br /> File No. 20-2949-02 <br /> July 10, 1990 RECEIVED <br /> J u L 16 1990 <br /> Van Groningen and Sons, Inc. ENVIRQNANYALHEALTH <br /> 15100 South Jack Tone Road PERMIT/SERVICES <br /> Manteca, California 95336 <br /> Subject: PERCOLATION TEST <br /> PROPERTY AT 15100 SOUTH JACK TONE ROAD <br /> SAN JOAQUIN COUNTY, CALIFORNIA <br /> MS-89-22 <br /> Gentlemen: <br /> As requested, on July 9, 1990 a representative of our firm drilled <br /> and set-up 1 3-foot deep percolation test hole at the requested <br /> location. The percolation test hole was hand-drilled and cased <br /> with slotted PVC pipe. The percolation test hole was filled with <br /> water and left to soak overnight. <br /> A representative of our firm returned to the site on July 10, 1990 <br /> and performed the percolation test per San Joaquin County <br /> guidelines . The test was performed for a period of 1 hour and the <br /> last 10 minutes were used to calculate the percolation rate of 10 <br /> minutes per inch. The county approved percolation field test sheet <br /> is included with this letter. <br /> We trust this letter presents the information requested at this <br /> time. If you have any questions, please contact us . <br /> Respectfully submitted, <br /> KLEINFELDER, INC. <br /> Steven R. Davis, C.E.G. <br /> Engineering Geologist <br /> Zo" AX40 <br /> Ron Heinzen, G.E. <br /> Regional Manager <br /> SRD:bja <br /> JL90/cc: San Joaquin County Environmental Health <br /> Quartaroli and Associates <br /> KLEINFELDER 2825 East Myrtle Street, Stockton, CA 95205 (209) 948-1345 <br />