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Soil Suitability Study MS-98-37 Parcel Nos . 1 , 2 , 3 , 4 , & 5 Percolation Test Hole Nos . DP1A, DP3B, DP4B and DPSA were drilled on December 29 , 1998 . 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 "Ramona Sandy Loam, shallow" , reddish-brown in color , with good surface and imperfect subsurface drainage on a slope nearly level ( less than 2 %) , a Storie Index of 20 , and poor agricultural soil . The Soil Survey of San Joaquin County, California, United States Department Of Agriculture Soil Conservation Service , issued October 1992 shows a narrow strip of land at the northern extremity to be "Yellowlark Gravely Loam" on a zero to two ( 2) percent slope and the remainder or majority of the soil to be "Montpellior-Cometa Complex" on five ( 5 ) to eight ( 8) percent slope . Both soils are listed as brown in color . The Plasticity Index of the two soils varies from 5 to 15 . Adaptability as a building site development for the two soils is listed as moderate with shrink swell , and either lawns and landscaping as slight or cemented pan. Adaptability to septic systems for the two soils is listed as severe , percolates slowly, and wetness . The soil character for the major portion of five parcels totaling 320 acres at various depths is listed in the above two ( 2 ) references as follows : Soil Name Depth Soil Character ( inches ) Montpellior-Cometa Complex 0-8 Gravely Loam 8-39 Gravely Loam & Gravel clay loam 39-47 Very gravely Loam or very gravely clay loam 47-54 Gravely clay, Clay 54-59 Gravely clay Loam, Clay Loam 59-62 Cemented or hard No water was encountered in excavating any of the percolation test holes to a maximum depth of 25 ' 00" . The San Joaquin County Flood Control And Water Conservation iviap entitled "Lines of Equal Depth To Water Wells" dated Spring 1997 shows the water to be in excess of one hundred eighty feet ( 180) feet below the ground surface . Percolation Tests : Five ( 5) shallow Percolation Test Holes , Nos . SP2A, SP213, SP3A, SP313 , and SP4A were excavated to depths of 36" and each was tested over a short one and one-half hour long period in lieu of the standard four hour period and even in this shortened time period, each of the test holes failed to meet the San Joaquin County percolation rate of no greater than 60 minutes per inch. Test Hole Nos . SP2A and SP2B are situate in Parcel 2 . Test Hole Nos . SP3A and SP3B are situate in Parcel 3 and Test Hole No . SP4A is situate in parcel 4 . The specific location of all these shallow R.E. Rose/Bear Creek Vineyards Inc . , 16750 & 16751 Clements Rd. 4