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The ground water problems can be summarized as follows: <br />High ground water table (2' to 8' below ground surface - during <br />— portions of year ground water may be in contact with pooled <br />and puddled storm water that provides a static head extending <br />several inches above ground level. In view of the above, it <br />_ is assumed that leaching of septic tank effluent in some <br />instances is hydraulically impossible and back flow from leach <br />lines to septic tanks and inhouse plumbing fixtures impossible. <br />0 For a yet to be determined reason, samples from some of the <br />individual systems have a very high Nitrate (NO3) concentration <br />(levels of 68 to 90 mg/1 have been measured by home owners). <br />Total dissolved solids are high ranging above 1000 mg/1, some <br />reaching 1500 mg/1 (this is an area wide natural ground water <br />phenomena to some extent). <br />G Biological sampling has not been done over a broad range of <br />area wells. The school well has failed to meet biological <br />standards on at least one occasion. <br />° Other adverse constituents are not known to be present in <br />the area well water. <br />THE OBJECT OF THIS STUDY IS TO DETERMINE THE EXTENT OF <br />GROUND WATER DEGRADATION AND POSSIBLE CONTAMINATION <br />AND TO FIND WAYS TO PROTECT THE HEALTH OF THE POPULATION <br />_ LIVING IN SANTOS RANCH/CURRIER ISrAT1S THE STUDENTS AND STAFF <br />OF LAMMERSVILLE SCHOOL AND PEOPLE LIVING IN SURROUNDING <br />RESIDENCES. <br />As a separate part of this study, preventative and remedial management <br />measures will be identified once the extent and severity of the pollution <br />and/or contamination is known. <br />-2- <br />