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F Soil Suitability Study, APN: 252•-12-01 To divide a 128 acres parcel into three parcels. hundred sixty(260) feet of leach lines consisting of two(2) leach lines, each eighty(80) feet long and another leach line one hundred(100) feet long. One of the septic system permits was for constructing two leach lines, each forty (40) feet long terminating at sumps sized at 4' wide x 10' long x 8' deep. The remaining septic system permit was for making an addition to an existing system consisting of constructing two (2)leach lines, each fifty(50) feet long. for a total of one hundred feet of additional leach lines. Three (3)of the six(6) septic permits classified the soil as clay loam. One of the septic permits classified the soil as adobe clay. Another septic permit classified the soil as adobe. The remaining septic permit classified the soil as gravel. No permits were noted for repairing any of the facilities subsequent to their installation. SOIL PROFILE TEST: No water was encountered in excavating the Soil Profile Test Hole to a maximum depth of 10'00" feet. See the attached"Field Percolation Data Sheet"as well as the text of this report for the specific soil layers character and the attached"Parcel Map"for test i hole location details. On the "Field Percolation Data Sheet" included in this report I have noted the soil encountered to be a dark-clay to a de th of 2-112' below the ground surface. Between 2-112' and 7-112' below the ground surface I noted the soil to be a brown, clayey loam. The University of California publication entitled"Soils of San Joaquin County, California by Walter W. Weir, dated June 1952", refers to the soil in this general area as being an alluvial fan and flood plains natural land classification and is identified as Sorrento Silty Clay,brown in color with good surface and subsurface permeability. The soil is on a level to 2% slope with no erosion classification. The soil has a Storie Index of 65 that makes it a good soil for growing agricultural crops. The"Soil Survey of San Joaquin County, California,United States Department of Agriculture Soil Conservation Service"issued October 1992 lists the soil type in this general area as Capay clay, wet, level to 2% slope. It is very deep and well drained. The surface layer is grayish brown and dark grayish brown in color and twenty(20)inches thick. From twenty(2 1)to sixty(60) inches below the ground surface the soil becomes a silty clay loam and pale brown in color. The soil is mostly used for irrigated crops or orchards and has a high shrink-swell factor. The percent of clay present and the permeability at various depths below the ground surface are listed as follows: Brad Dias, 27057 South Bird Road, Tracy, CA 95304