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H. SOIL SUITABILITY FINDINGS <br /> This Study presents the results of our investigation of the soil strata and groundwater under the <br /> subject dairy facility and to determine if the subject property is acceptable for traditional septic <br /> systems. This part of the complete study is in compliance with the requirements of Section 9- <br /> 1110 item (c) of the San Joaquin Ordinance Codes. <br /> The structures on the subject property applicable to the Soil Suitability Study are the Milk Barn, <br /> and three single family residences, and three mobile homes. Each structure has a septic system <br /> composed of one septic tank, leachlines and sumps at the ends of the leachlines. It is anticipated <br /> these structures will remain as the only on-site structures which will have septic systems. <br /> STUDY AREA DATA <br /> The surrounding study area consists mainly of irrigated agriculture. Past history of the subject <br /> property is irrigated row crop. The soil profile in the study area consists of a high percentage clay <br /> content soil. Hydrometer test results indicate the indigenous soil to be over 42 percent <br /> throughout the soil profile. In addition, the soil is extremely consolidated and is not loose as are <br /> other types of clays. Soil profile information was obtained from the Soil Conservation Service in <br /> Stockton. From the published maps, the subject property soil is determined to be a Soil Map <br /> Description. This high clay content, "tight" soil structure is not conducive to sewage effluent <br /> percolation. <br /> Information regarding the underlying groundwater was obtained from an investigation conducted <br /> in the summer of 1994. The results of this study indicate the water table surface or elevation is <br /> extremely variable throughout the subject property. From four borings, the static water table <br /> varied from 12 feet below to over 25 feet below existing grade. The elevation of existing grade <br /> does not change dramatically over the relatively small area where the groundwater study was <br /> performed. This area was primarily around the proposed site for the wastewater ponds, prior to <br /> earthwork procedures. <br /> 2 <br />