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This data includes streams of Arkansas that have been assessed as Impaired Waterbodies for the listed pollutant pair(s) (Category 5). It consists of a subset of the streams from the National Hydrography Dataset (NHD) High Resolution (1:124,000) Flowline. Category 5 is described as follows: <\/SPAN><\/P>

Category 5. The waterbody is impaired, or one or more water quality standards may not be attained. Waterbodies in Category 5 will be prioritized as:<\/SPAN><\/SPAN><\/P>

High<\/SPAN><\/SPAN><\/P>

  • Truly impaired; develop a TMDL or other corrective action(s) for the listed parameter(s).<\/SPAN><\/SPAN><\/P><\/LI><\/UL>

    Medium<\/SPAN><\/SPAN><\/P>

    • Waters currently not attaining standards, but may be de-listed with future revisions to APC&EC Rule 2, the state water quality standards; or<\/SPAN><\/SPAN><\/P><\/LI>

    • Waters which are impaired by point source discharges and future permit restrictions are expected to correct the problem(s).<\/SPAN><\/SPAN><\/P><\/LI><\/UL>

      Low<\/SPAN><\/SPAN><\/P>

      • Waters currently not attaining one or more water quality standards, but all designated uses are determined to be supported; or<\/SPAN><\/SPAN><\/P><\/LI>

      • There is insufficient data to make a scientifically defensible decision concerning designated use attainment; or<\/SPAN><\/SPAN><\/P><\/LI>

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