SR0085667 - Laserfiche WebLink

Home Browse Search

.,. LIVE OAK GEO ENVIRONMENTAL, INC. 407 W. Oak St., Lodi, CA 95240 (209) 369-0375 :• logelodi.com August 23, 2022 Project Number: 2239 Marc Bertsch 17693 Gretl Ct. Ripon, CA 95366 Regarding: Percolation Test APN 245-060-38 17693 Gretl Ct., Ripon, CA (2.16 Acres) Mr. Bertsch: Per your request, Live Oak GeoEnvironmental, Inc. (Live Oak) has completed a percolation test for the subject Site, located at 17693 Gretl Court, Ripon (Plate 1). We understand that you are constructing a house on the Site (Plate 2), and the San Joaquin County Environmental Health Department is requiring the completion of a percolation test before the septic permit can be issued. Soil Boring On August 18, 2022, Live Oak Live Oak excavated a shallow soil boring on the Site for the purpose of percolation testing. The boring was four inches in diameter, 2.72 feet deep, and was excavated by hand auger. The location of the boring is indicated on the attached Plate 3. Soil Log The soil in the boring was observed to be sandy silt to the full depth of the hole. Preparation and Presaturation of Percolation Test Hole After the boring was advanced, the test hole was completed for the percolation testing. Approximately two inches of pea gravel were placed in the bottom of the open soil boring, followed by a 2.0 -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 testing. 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 hole was found to be intact and dry. Percolation Test Procedure Live Oak conducted the percolation test for the boring on August 19, 2022. Percolation test procedures conformed to San Joaquin County Environmental Health Department policy. Environmental Engineering Geology Geophysics