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`%so *400, <br /> Pedro Huarte MS-92-65 , 4 Parcels <br /> Soil Profile Test : <br /> Excavation to a depth of ten ( 10) feet below the ground <br /> surface was performed for the Soil Profile investigation on Lot 3 <br /> at the location shown on the attached "Parcel Map" . By visual <br /> inspection the soil appears to be a grayish-brown sandy loam <br /> material throughout the ten feet of depth . The material from 7 1 /2 <br /> feet to 10 feet , however , was a lighter color and much drier and <br /> more tightly compacted than the material above it . Much effort and <br /> patience had to be expended to complete the bottom 2 1/2 feet of <br /> excavation to get the full 10 feet of depth with hand operated <br /> tools . <br /> No water was encountered in excavating to the 10-foot depth . <br /> The San Joaquin County Flood Control And Water Conservation Map <br /> entitled "Lines Of Equal Depth To Water Wells" dated Fall 1990 <br /> shows the water to be in excess of 40 feet below the ground <br /> surface . <br /> Percolation Tests : <br /> Four (4) percolation test holes , one ( 1 ) on each of the four <br /> (4) subject lots were excavated to about a 3-foot depth . The <br /> location of the four test holes are shown on the attached "Parcel <br /> Map" . <br /> All percolation tests conducted were performed in accordance <br /> with the percolation test procedures outlined in the "Manual Of <br /> Septic Tank Practice" published by the Department Of Health <br /> Education And Welfare and the requirements of the San Joaquin <br /> County Public Health Service , Environmental Health Division . <br /> On April 1 and 2 , 1992 , four percolation tests were performed <br /> on the subject property under my direction in conformance with the <br /> San Joaquin County Public Health Service, Environmental Health <br /> Division regulations and the San Joaquin County Ordinance Code <br /> Standards . <br /> Percolation Test Hole Nos . 1 , 2 , 3 and 4 resulted in the <br /> percolation rates and determinations shown on the attached "Field <br /> Note Sheets" and are tabulated as follows : <br /> Lot No. Test Hole Percolation Rate Minimum Usable _ <br /> No . Minutes Per inch _ Disposal Area <br /> (Square Feet) <br /> 1 1 30 . 0 10 , 000 <br /> 2 2 7 . 5 6 , 000 <br /> 3 3 12 . 0 8 , 000 <br /> 4 4 5 . 5 6 , 000 <br /> Soil Suitability Study 3 <br />