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Total disolved solids, concentrations in drinking water up to 1500+ mg/1, <br />are not normally accepted in drinking water supplies and should not be <br />consumed over an extended period of time. Normal rainfall is about <br />10" to 12" annually, not enough to leach out or dilute salts found in this <br />ground water aquifer. Other obstacles also impede flushing of dissolved <br />solids from the ground water. <br />There are several solutions for mitigating the ground water problems <br />outlined above. This study would provide data and alternate plans for <br />implementing a best overall solution to providing safe domestic water <br />and adequate treatment and disposal of domestic sewage. <br />Project cost estimates and financial planning will be an important part <br />of this proposed work. <br />D. Project Methodology <br />The goal of this study includes documenting the following ground water <br />information: <br />1. Determining depth of unsaturated soil between the bottm of the <br />existing leaching trenches and the top of the highest ground water <br />level in the Santos Ranch area, also the location of the top of the <br />ground water in relation to the soil surface. <br />2. The degree of continuity between the ground water aquifers to a <br />depth of 100 feet. <br />3. Determine the concentration and source of Nitrates, NO3, in individual <br />domestic wells located at the Santos Ranch Development. <br />.. 4. Determine the concentration and source of Total Dissolved Solids <br />in individual domestic wells located at the Santos Ranch Development. <br />5. Determine the degree of biological contamination and probably <br />source of contamination in domestic wells at the Santos Ranch <br />Development. <br />-5- <br />