Description: This dataset is derived primarily from the High Resolution (1:24,000-scale) National Hydrography Dataset (NHD). The Arkansas Department of Environmental Quality uses this layer as their base water layer. This dataset includes the ADEQ Reach column in the attribute table as well as several other types of data. ADEQ reach, planning segment, HUC 8, and county are referenced in the 303(d) list and 305(b) report.