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,~ <br />Explanation for Tables 1 through 3 <br />Primary Standards -National legally enforceable standards that apply to public water systems. <br />MCLG -Maximum Contaminant Level Goal: EPA established level of a contaminant in drinking water below which there is no known or expected risk to health. <br />MCLGs allow for a margin of safety. <br />MCL -- Maximum Contaminant Level: EPA established highest level of a contaminant that is allowed in drinking water. MCLS are set as close to the MCLGs as <br />feasible using the best available treatment technology. <br />Secondary Standards -National non-enforceable guidelines regulating contaminants that may cause cosmetic eReds (such as skin or tooth discoloration) or. <br />aesthetic effects (such as taste, odor, or color) in drinking water. • <br />n/a - no established standards <br />ND - Analyte was analyzed for but not detected, detection limit given iri parentheses <br />mg/L -Milligrams per liter or parts per million (ppm) <br />• <br />