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LIVE OAK GEO ENVIRONMENTAL, INC. <br /> 407 W. Oak St., Lodi, CA 95240 •:• (209)369-0375 ❖ logelodi.com <br /> September 5, 2020 <br /> Project Number: 20-43 <br /> Deborah Ward-Crummey <br /> 25901 N. Fuhrman Rd. <br /> Acampo, CA 95220 <br /> Regarding: Percolation Test <br /> APN 021-030-59 <br /> 25901 N. Fuhrman Rd., Acampo, CA <br /> Ms. Ward-Crummey: <br /> Per your request, Live Oak GeoEnvironmental, Inc. (Live Oak) has completed a percolation test <br /> for the subject Site. We understand that you are placing a new home on the Site, located at <br /> 25901 North Fuhrman Road, Acampo, California (Plate 1). The San Joaquin County <br /> Environmental Health Department has requested that a percolation test be completed prior to <br /> issuing septic permits. <br /> Soil Borinq <br /> On August 27, 2020, Live Oak observed the drilling by Central Valley Septic Services of two <br /> soil borings for percolation testing. The borings were 12 inches in diameter, 3.50 and 24.92 <br /> feet deep, and were excavated with a Spiradrill LHD 50. The location of the borings is <br /> indicated on the attached Plate 2. <br /> Soil Lo <br /> The soil in the borings was observed to be sandy clay to a depth of 3 feet below ground <br /> surface (bgs), followed by silty sand to a depth of 8 feet bgs, coarse sand with silt and gravel to <br /> a depth of 16 feet bgs, clayey coarse sand to a depth of 22 feet bgs, and sandy clay with <br /> gravel to the full depth of the hole. <br /> Preparation and Presaturation of Percolation Test Hole <br /> After the borings were excavated, the test holes were completed for the percolation testing. <br /> Approximately two inches of pea gravel were placed in the bottom of each 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 holes approximately 24 hours prior to the <br /> percolation testing. The holes were filled with water to a height of 12 inches above the bottom <br /> of the boring for the presaturation. On n the day of testing, both holes were found to be intact; <br /> some standing water was present in both holes. <br /> Environmental Engineering Geology ❖ Geophysics <br />