NHD & WBD Contacts

NHD/WBD Stewardship

National Stewardship of the NHD & WBD relies heavily on State Stewards. State Stewards are tasked with representing the interests of the state’s hydrography user community and providing the USGS with the most widely-accepted representation of surface water in the given state. The Idaho NHD & WBD are actively updated through this NHD/WBD Stewardship Program. Through MOU and other agreements with the United States Geological Survey (USGS), IDWR was named the Principal Steward for the NHD & WBD in Idaho. IDWR accepts input from other agencies and organizations, considers any changes to the NHD/WBD, and updates the NHD/WBD if appropriate. The Principal Steward adjudicates any decision through the Hydrography Technical Working Group (TWG), if necessary.