A national copy of the National Hydrography Dataset Plus (NHDPlus) is stored in the WATERS database for use by services, applications and reporting tools. NHDPlus provides a national framework for assigning reach addresses or catchment identifiers to water quality related entities, such as dischargers, drinking water supplies, streams effected by fish consumption advisories, wild and scenic rivers, Clean Water Act Section 305(b) and 303(d) waterbodies, Designated Uses, etc.

NHDPlus Versions in WATERS

The following table shows the individual NHDPlus regions and datasets that together comprise the current NHDPlus in WATERS.

April 2015

Top of Page