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LIVE OAK GEO ENVIRONMENTAL, INC. 407 W.Oak St.,Lodi, CA 95240 4 (209)369-0375 •: logelodi.com July 10, 2013 Project Number: 1317 John Vierra 151 W. Taddei Rd. Acampo, CA 95220 Regarding: Percolation Test Stama Winery APN 025-160-12 17521 N. Davis Rd., Lodi, CA PA11-00168 Mr. Vierra: Per your request. Live Oak GeoEnvironmental, Inc. (Live Oak) completed a percolation test for the subject project. We understand that a new winery will be constructed on the property. The parcel is approximately ten acres in size. The address of the property is 17521 North Davis Road, Lodi. One shallow percolation test was conducted on the Site. Percolation test procedures conformed to San Joaquin County Environmental Health Department policy. Soil Boring On July 1, 2013, Live Oak excavated one shallow soil boring on the Site for the purpose of conducting a percolation test. The boring was four inches in diameter, 3.25 feet deep, and was excavated by hand auger. The soil in the boring was observed to be brown, sandy silt to the maximum depth of the boring. The boring location is indicated on the attached plate. Preparation and Presaturation of Percolation Test Hole After the boring was advanced by hand auger, the test hole was completed for the percolation test. Approximately one inch of pea gravel was placed in the bottom of the open soil boring, followed by a 1.5-inch diameter PVC pipe with perforations on the bottom. Pea gravel was then used to backfill a few inches of the annular space. Live Oak presaturated the percolation test hole approximately 24 hours prior to the percolation test. The hole was filled with water to a height of 12 inches above the bottom of the boring for the presaturation. On the day of testing,the shallow hole was found to be intact and dry. Environmental ; Engineering Geology Geophysics