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Soil Suitability Study*MS-98-27*Parcel No . 1 & Designated Remainder building , a well and a septic system in the southeast corner of the parcel . The remaining property is unimproved and presently used to graze horses and a couple of goats . Soil Profile Test : On my "Field Percolation Data Sheets" , I have noted the soil encountered to be reddish-brown in color and either clayey or , sandy or granular , San Joaquin 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 possibly "San Joaquin Loam" , reddish-brown in color , with good surface and imperfect subsurface drainage or "San Joaquin Loam, Deep" , reddish brown in color with good surface and subsurface drainage . The Soil Survey of San Joaquin County , California , United States Department Of Agriculture Soil Conservation Service, issued October 1992 lists the soil type as San Joaquin Loam, 0% to 2% slopes , cemented layers in shallow excavations and reddish brown in color . The physical and chemical properties of the soil are listed as follows : Soil Name Depth Clay Permeability Shrink Swell P I ast i c i_t_y_ ( Inches) M ( Inches/Hr . ) Index San Joaquin 0- 16 15-25 0 . 6-2 . 0 Low NP- 10 Loam 16-26 35-50 Less than 0 . 6 High 25-35 26-60 --- ---- ---- No water was encountered in excavating any of the percolation test holes to a maximum depth of 19 ' 10" . The San Joaquin County Flood Control And Water Conservation Map entitled "Lines of Equal Depth To Water Wells" dated Spring 1997 shows the water to be in excess of sixty feet ( 60) feet below the ground surface . Percolation Tests : Two ( 2) shallow Percolation Test Holes , Nos . PH1 and RPH , were excavated to depths of 34 . 5" and 35" respectively and tested in a non-standard manner ( 1 1 /2 hours long) and resulted in percolation rates of 480 minutes per inch for Parcel No . 1 and 240 minutes per inch for the Designated Remainder parcel as shown on the "Field Percolation Sheet" for test hole nos . PH1 and RPH which determined the need for deep percolation testing . Three ( 3) deep Percolation Test Holes were dug on November 5 , 1998 . One , designated URPH , was abandoned from further testing by visual inspection, and the other two were formally tested and are designated Nos . PH1A and RPHA . PH1A was dug to a depth of 19 ' 08" on Parcel No . 1 and the second , RPHA was dug to a depth of 9 ' 10" on the Designated Remainder parcel and were formally tested and are reported on in this report . The deep percolation tests were conducted and performed in accordance with the percolation test procedures outlined in the Noreen Thompson, 3157 East Woodson Road , Acampo Ca . 95220 3