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Soil Suitability Study VIS-92-189 , Parcel Nos . 1 and 2 <br /> Percolation Tests : <br /> A total of six (6) percolation test holes were excavated. <br /> Three (3 ) are located on Parcel No. 1 and three (3) are located on <br /> Parcel No. 2 . The six ( 6) percolation test holes are identified as <br /> P11 , P12 , P13 , P21 , P22 , and P23 and their specific locations are <br /> as shown on the attached "Tentative Parcel Map" . All six (6) of the <br /> percolation test holes were excavated to about three (3) feet below <br /> the ground surface. Only Percolation Test. Hole Nos . P13 and P23 <br /> were formerly tested and reported on. From field observations made <br /> at the time of excavation, it was deemed impractical to test <br /> Percolation Test Hole Nos . P11 , P12 , P21 and P22 further beyond <br /> their excavation. <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 August 12 and 13 , 1993 , two ( 2) percolation tests were <br /> performed on the subject property under my direction in conformance <br /> with the San Joaquin County Public Health Service, Environmental <br /> Health Division regulations and the San Joaquin County Ordinance <br /> Code Standards . <br /> Percolation Test Hole Nos . P13 and P23 resulted in the <br /> percolation rates and determinations shown on the attached "Field <br /> Percolation Data Sheet" and are tabulated as follows : <br /> Parcel No . Test Hole Percolation Rate Minimum Usable <br /> No. (Minutes Per Inch) Disposal Area <br /> (Square Feet ) <br /> 1 P13 40 .0 10 , 000 <br /> 2 P23 20 . 0 8 , 000 <br /> Recommendations : <br /> 10 , 000 , and 8 , 000 square feet minimum usable disposal areas <br /> are recommended for Parcel Nos . 1 and 2 , respectively, to <br /> accommodate subsurface horizontal leaching fields . However , due to <br /> the careful selection of the holes to be tested for percolation and <br /> reported on in this report and also in conformance with past <br /> construction performed in this geographical area, leach lines used <br /> in combination with pits appears to be an acceptable alternate <br /> facility. <br /> James and Joyce Lipsett , 23045 North Sowles Road , Acampo 4 <br />