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18340 E Rodeo Drive Project No.2018-00037 Pa g e 12 <br /> Joaquin County Environmental Health (EHD) for a 1600-gallon septic tank servicing the <br /> three-bedroom residence. No permit was obtained for the second residential septic system. <br /> The property is located in a rural residential neighborhood, adjacent Rodeo Drive, <br /> approximately one-half mile south of Highway 12; Atkins Road is the nearest cross street. <br /> The property is approximately 600 feet north of Bear Creek and approximately one-quarter <br /> mile south and east of a tributary creek.The general vicinity consists of rural residential lots <br /> and agricultural use. According to the San Joaquin County District Viewer web site,2 the <br /> subject property is zoned AL-10. AL Zones intend to recognize and preserve areas that <br /> contain small-scale agricultural operations and dwellings3. <br /> The elevation at the site, according to a United States Geological Survey4, is approximately <br /> 135 feet above mean sea level (msl).The site is relatively flat,with topography in the region <br /> generally grading gently to the north. <br /> Location and Site maps of the subject property are attached to this report as Appendix A, <br /> Plate 1 and 2. <br /> 1.2 Proposed Development <br /> As discussed in Section 1.1, the property currently consists of 5.10 acres of land occupied by <br /> one residence with three bedrooms, and a second residence with two bedrooms. Each <br /> residence is served by a separate septic system. The proposed development consists of <br /> installing a manufactured home with four bedrooms. There is planned an additional septic <br /> system and additional well installation to service the proposed residence. <br /> 2.0 CHEMICAL AND PHYSICAL PROPERTIES OF SOIL <br /> 2.1 Chemical and Physical Soil Properties <br /> The site is depicted on the Preliminary Geologic Map of Cenozoic Deposits of the Bellota <br /> Quadrangles and potentially (the map shows a question mark after the symbol) falls within <br /> the Pleistocene aged Riverbank Formation upper member (Plate 3, Appendix A) herein <br /> called Qrl. Qrl is primarily arkosic alluvium,likely glacial outwash,and locally derived sandy <br /> alluvium, chiefly sand. <br /> The surface and near surface soils located at the site are reported by the San Joaquin County <br /> Soil Survey6 to be composed of Cometa sandy loam, 2-5% slopes on the northern two-thirds <br /> Z San Joaquin County District Viewer,http://sjmap.org/website/DistrictViewer/Viewer.asp. <br /> 3 San Joaquin County Zoning Codes,https://www.sjgov.org/commdev/cgi-bin/cdyn.exe?grp=neighpresv&htm=zonedef <br /> 4 US Geological Survey,2015,7.5'Topographic Map,California,Clements Quadrangle. <br /> 5 Marchand,D.E.and Bartow,J.A.1979. Preliminary Geologic Map of Cenozoic Deposits of the Bellota Quadrangle,CA.U.S.Geologic <br /> Report OF 79-664;Scale 1:62,500. <br /> 6 United States Department of Agriculture.Soil Survey of San Joaquin County,California.October 1992. <br /> Petralogix Engineering,Inc- <br /> 26675 <br /> nc26675 Bruclla Road,Galt,Ca 95632 <br /> (209)-400-5729 <br /> www.petralogix.com <br />