USGS - science for a changing world

NHD/WBD Stewardship

Report Data Issue

Requests should be limited to minor updates that keep you from using the NHD for analysis or applications. To request maintenance/corrections to the NHD, please send an email to and include the following information:

In your email, make sure you have the correct 4-digit subregions or 8-digit subbasins, and the correct IDs or reachcodes for the features you would like the USGS to review. Incorrect numbers will not be reviewed.

Thank you