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RECEIVED OCT 1993 <br /> SIEGFRIED ENGINEERING, Inc. Am <br /> Civil Engineering ® Land Surveying ® Structural Engineering a Planning rni� <br /> Robert w Sworted <br /> founder <br /> October 12, 1993 lames F.Yost <br /> Wayne M.West <br /> Robert G.Cefurn <br /> ten A.cortates <br /> tynn M.Sutton <br /> Stephen IL Thurnten <br /> Man E.LuWe <br /> San Joaquin County <br /> Public Health Services <br /> Post Office Box 2009 <br /> Stockton, California 95201 <br /> Attention: Mr. Mike Huggins <br /> Gentlemen: <br /> Subject: Minor Subdivision Application No. MS-93-46 <br /> Soil Suitability Study <br /> The property covered by the subject Application comprises <br /> approximately 86.5 acres at 30703 South MacArthur Drive, Tracy, <br /> California. The site is located within Section 16, Township 3 South, <br /> Range 5 East, Mount Diablo Base and Meridian. This property and the <br /> surrounding area are zoned AG-40 (Agricultural) . The topography of <br /> the site is flat with the exception of Parcel 1, within which is a <br /> former gravel pit. There are no significant natural waterways or <br /> drainage channels crossing the property. A Banta-Carbona Irrigation <br /> District concrete lined canal borders the property to the west. <br /> The topographic soils map prepared by the United States <br /> Department of Agriculture, Soils Conservation Service, indicates the <br /> site is covered by Zacharias gravelly clay loam. For many years, the <br /> subject property has been vacant and formerly used as a gravel pit. <br /> The latest San Joaquin County Water Conservation District maps reveal <br /> the standing water level of the subject site to be at a depth of <br /> approximately eighty-five (851 ) feet. This relates to a groundwater <br /> elevation of approximately seventy (701 ) feet. <br /> Attached are copies of percolation tests performed on <br /> September 24, 1993, by Siegfried Engineering, Inc. , Consulting Civil <br /> Engineers. The holes reveal that the surface soils are underlain by <br /> gravelly loam soil at a depth of approximately three (31 ) feet. The <br /> observed percolation rates are 14 .7 and 13 .8 minutes per inch for Test <br /> Holes I and 2, respectively. <br /> (Cont'd. ) <br /> 4045 Coronado Ave. a Stockton, CA 95204-2396 to 209 943-2021 a FAX 209 942-0214 <br /> PILU17904LTS0110-12-91 <br />