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•.• LIVE OAK GEO ENVIRONMENTAL, INC. <br /> .�, <br /> 407 W. Oak St., Lodi, CA 95240 •: (209) 369-0375 logelodi.com <br /> November 9, 2021 <br /> Project Number: 2155 <br /> Paul Cox <br /> 19745 S. Sexton Rd. <br /> Escalon, CA 95320 <br /> Regarding: Percolation Testing <br /> APN 245-110-29 <br /> 19693 S. Sexton Rd., Escalon, CA (3.41 Acres) <br /> Mr. Cox: <br /> Per your request, Live Oak GeoEnviron mental, Inc. (Live Oak) has completed a percolation test <br /> for the subject Site, located at 19693 South Sexton Road, Escalon (Plate 1). We understand <br /> that you are purchasing the Site, and the lender is requiring the completion of a percolation <br /> test as a condition of financing. <br /> Soil Boring <br /> On November 3, 2021, Live Oak excavated a shallow soil boring on the Site for the purpose of <br /> percolation testing. The boring was four inches in diameter, 2.66 feet deep, and was <br /> excavated by hand auger. The location of the boring is indicated on the attached Plate 2. <br /> Soil Log <br /> The soil in the boring was observed to be silty sand to the full depth of the hole. <br /> Preparation and Presaturation of Percolation Test Holes <br /> After the boring was advanced, the test hole was completed for the percolation testing. <br /> Approximately two inches of pea gravel were placed in the bottom of the open soil boring, <br /> followed by a 2.0-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 /> testing. The hole was filled with water to a height of 12 inches above the bottom of the boring <br /> for the presaturation. On the day of testing, the hole was found to be intact and dry. <br /> Percolation Test Procedure <br /> Live Oak conducted the percolation test for the boring on November 4, 2021. Percolation test <br /> procedures conformed to San Joaquin County Environmental Health Department policy. <br /> Due to initial percolation rates observed, a one-hour test was selected. Water level <br /> measurements were taken every 30 minutes during this four-hour period. Aaron Gooderham, <br /> Environmental Engineering Geology Geophysics <br />