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U.S. Department of Agriculture, Soil Conservation Service, 1992, Soil Survey of San <br /> Joaquin County, California. <br /> U.S. Environmental Protection Agency (EPA), 1980, Design Manual: Onsite Wastewater <br /> Treatment and Disposal Systems. <br /> Western Regional Climate Center, www.wrcc.dri.edu. <br /> LOGE 1903 Page 19 <br />