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[5] Continued. <br /> high level of nitrate concentration at 113 ppm. The DBCP is <br /> probably originating from nearby vineyards where this pesticide was <br /> applied prior to 1977 . <br /> The Maximum Contaminant Level (MCL) for nitrate as mandated by the <br /> California Department of Health Services and the U. S. Environmental <br /> Protection Agency is 45 ppm. This nitrate concentration, as <br /> tested, illustrates there has been an impact upon the local, <br /> shallow groundwater, most probably from agricultural practices such <br /> as nitrogen applications. Nitrate contamination may also be <br /> y originating from the septic system within the proximity of the <br /> domestic well. An attachment will be submitted with this report <br /> detailing the address of where the water sample was drawn, and the <br /> names of the residents. <br /> [6] PROPOSED SEPTIC TANK SIGHTING AND USAGE <br /> The deep, fairly sandy soil structure of the subject parcel is <br /> conducive to permeability. Development of the subject parcel has <br /> not been completely determined at this time, therefore, the <br /> referenced percolation tests were conducted at the borders of the <br /> existing almond orchard. <br /> All recommended sewage disposal areas are in compliance with the <br /> regulations of the San Joaquin Department of Environmental Health. <br /> All sewage disposal areas must conform with the "distance" <br /> separation requirements from applicable objects. <br /> 4 <br /> Quality Control Inspection <br />