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LIVE OAK GEO ENVIRONMENTAL, INC. <br /> 407 W. Oak St., Lodi, CA 95240 :• (209) 369-0375 logelodi.com <br /> March 17, 2014 <br /> RECEIVED <br /> Project Number: 1405 RECEIVED <br /> Frank Faria MAR 18 2014 <br /> 11495 S. Van Allen Rd. <br /> Escalon, CA 95320 NWRONMENTALHEgk,T}g <br /> PERMR/SERVICES <br /> Regarding: Percolation Test <br /> Faria Property <br /> APN 205-150-13 <br /> 20504 E. Mariposa Rd., Escalon, CA <br /> PA13-00024 <br /> Mr. Faria: <br /> Per your request, Live Oak Geo Environmental, Inc. (Live Oak) completed a percolation test for <br /> the subject project. We understand that the test will be used in conjunction with a previously <br /> completed Soil Suitability Study; the original test (in a different location) did not achieve a <br /> passing percolation rate. You indicated that some repairs to an existing septic system are <br /> proposed in the current percolation test location. The parcel is approximately 150 acres in <br /> size. The address of the property is 20504 East Mariposa Road, Escalon. <br /> One deep percolation test was conducted on the Site. Percolation test procedures conformed <br /> to San Joaquin County Environmental Health Department policy. <br /> Soil Boring <br /> On March 14, 2014, Live Oak excavated one shallow soil boring on the Site for the purpose of <br /> conducting a percolation test. The boring was four inches in diameter, 9.50 feet deep, and <br /> was excavated by hand auger. The soil in the boring was observed to be clayey sand to a <br /> depth of three feet. From three to six feet, cemented sandy silt (hardpan) was encountered. <br /> From six to eight feet, the soil was sandy silt. From eight feet to the maximum depth of the <br /> boring, clean, fine sand was encountered. The boring location is indicated on the attached <br /> plate. <br /> Preparation and Presaturation of Percolation Test Hole <br /> After the boring was advanced by hand auger, the test hole was completed for the percolation <br /> test. Approximately one inch of pea gravel was placed in the bottom of the open soil boring, <br /> followed by a 1.5-inch diameter PVC pipe with perforations on the bottom. Pea gravel was <br /> then used to backfill a few inches of the annular space. <br /> Live Oak presaturated the percolation test hole approximately 24 hours prior to the percolation <br /> test. The hole was filled with water to a height of 12 inches above the bottom of the boring for <br /> the presaturation. On the day of testing, the hole was found to be intact and dry. <br /> Environmental Engineering Geology - Geophysics <br />