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Soil Suitability Study 3 <br /> I have noted the soil to be a brown, fine, sandy loam on my <br /> "Field Percolation Data Sheet" . The soil type in the general area <br /> of the subject property is noted to be Columbia very fine sandy <br /> loam in the University Of California, College Of Agriculture, <br /> Agriculture Experiment Station, Berkeley, California publication by <br /> Walter W. Weir , entitled "Soils Of San Joaquin County, California" . <br /> Percolation Tests : Two (2) percolation test holes , one ( 1 ) on each <br /> of the two ( 2) subject parcels , were excavated to about a 3-foot <br /> depth. The location of the two test holes are shown on the attached <br /> "Tentative Parcel 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 November 2 and 3 , 1992 , two 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 . IA and 2A resulted in the <br /> percolation rates and determinations shown on the attached "Field <br /> Percolation Data Sheet" and are summarized as follows : <br /> TEST RESULTS • <br /> Parcel No. Test Hole Percolation Rate Minimum Usable <br /> No. (Minutes Per Inch) Disposal Area <br /> (Square Feet ) <br /> 1 lA 10 .0 81000 <br /> 2 2A 8. 0 6 , 000 <br /> RECOMMENDATIONS : <br /> 8 , 000 and 6 , 000 square feet minimum usable disposal. areas are <br /> recommended for Parcel Nos . 1 and 2 , respectively, to accommodate <br /> sijbsurface horizontal leaching fields . <br /> Engineer ' s Statement : <br /> Septic Systems can be installed to the density proposed and it <br /> is not expected to impact ground water nor cause other health <br /> hazards . <br /> Walter E. Curtis <br /> Civil Engineer <br /> Attachments : C.E. # 11584 <br /> Percolation Data Sheet <br /> Tentative Parcel Map <br /> Ms . Margaret Cornelius (Don Simonich, Subdivider) VIS-92-80 <br />