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Soil Suitability Study Sheet 4 of 5 <br /> published by the Department Of Health. Education <br /> And Welfare and the requirements of the San Joaquin <br /> County Health Service . Environmental Health <br /> Division . <br /> On June 18 and 19 . 1991 . four (4 ) percolation tests <br /> on the subject property were performed under my <br /> direction in conformance with San Joaquin County <br /> Health District San Joaquin County Ordinance Code <br /> Rules And Regulations (Standards) . The approximate <br /> locations of the percolation test holes are shown <br /> on the attached "Parcel Map" . <br /> The percolation test holes on Parcel Nos . 1 and 2 <br /> resulted in the percolation rates and the <br /> determinations shown in the following table as <br /> determined on the attached Field Note Sheets : <br /> Parcel No . Test Hole Percolation Rate Minimum Usable <br /> \o .- (Minutes Per Inch_ Disposal Area <br /> ( Square Feet ) <br /> 1 1A (3 ' ) Failed ---- <br /> 1 1B ( 25 ' ) 30 12 , 000+pits <br /> 2 2B (3 ' ) Failed ---- <br /> 2 2B ( 25 ' ) 30 12 . 000+pits <br /> RECOMMENDATIONS : <br /> Soil porosity does not permit the use of a <br /> subsurface horizontal leaching field solely and <br /> effluent is recommended to be discharged , in <br /> combination with a subsurface horizontal leaching <br /> field , into seepage pits at a maximum depth of <br /> twenty-five ( 25) feet . Since the 3-foot depth <br /> percolation tests failed to meet San Joaquin County <br /> Health Service . Environmental Health Division <br /> minimum requirements , the sewage disposal system <br /> recommended is a minimum usable 12 .000 square foot <br /> disposal area plus pits in addition . <br /> Well Water Analysis : <br /> Well water from a domestic well at a mobile home on <br /> the west end of the subject property was sampled and <br /> tested for the chemical Dibromochloropane (DBCP) and <br /> Nitrate (\03) . Dibrochloropane (DBCP) was not detected <br /> at or above the detection limit of 0 . 01 :ig/l . The test <br /> ANTHONY AND WTLMA I.OPEZ --- NIS-911 -91 <br />