Mark Olsen Minnesota Pollution Control Agency Information Systems Office Susanne Maeder Minnesota Dept. of Administration Minnesota Geospatial Information Office NHD/WBD Technical Architecture Planning Meeting May 11, 2010

 Most surface water of the 48 contiguous states  Critical to $10 billion/year tourist industry, healthy agriculture and business economy  Water quality top priority for public  Impacts on economic growth  Number of impaired waters is growing 2

3 Lake Pepin TMDL drainage area includes 26 subbasins Contributions from Wisconsin, Iowa and South Dakota

 Assessment and listing process  Water Quality permit issuance and reissuance  Phosphorus trading  Storm water  MS4  Construction  Industrial 4

5 Regulatory boundary crosses road PWI PWI represents State regulated boundary – the ordinary high water level Fisheries Fisheries requires the open water basin NHD NHD

 More and better tools  Generalization, conflation, editing and markup  Enhanced usability  More and better data  Stormwater  Lidar  High Resolution NHDPlus  Enhanced analysis capabilities  Network traversal  Model integration 6

The Minnesota NHD Maintenance Process USGS - NHDMnRAD StewardMnRAD User Distribution Database Production Database Mn Distribution Database Mn Production Database Pgdb, shapefiles, direct use NHDGeoEdit, Indexing Tools, ArcGIS via IMS, ArcIMS NHDGeoEdit, Conflation, Indexing Tools, ArcGIS via IMS, ArcIMS, ArcHydro Local Edits National Updates

 NHDGeoEdit, NHDGeoConflate  Simplify Tools and Entire Update Process to extent practicable  Timing from desktop update to NHD Distribution  Software versions – Timing  Web Reporting  HEM Desktop Tool  Need robust HEM Tool for creating local events  Heavy user of synchronization process 8

 Multiple Data Sets, Multiple Business Needs  Lakes & Streams Data: NHD, DNR Hydro GDB  Watersheds: WBD, DNR Catchments (huc-16)  Wetlands: NWI Update in progress  Current Project: Develop Process for data harmonization  One more conflation – bring together best of both  Shared Editing Environment in the future?  Accommodating other data  Technology Issues  Update process not dependent on extract to desktop?  Capabilities of replication? 9

 Short-term (1-2 years)  Resolve DNR-NHD Issues: Complete Conflation, Pilot Shared Editing  Additional data: storm water, ditch inventories (drain tiles?)  Begin NHDPlus for high-res  More robust local event handling (Mn)  More robust hydro navigation tools, incl web-based  Medium-term (3-5 years)  Shared editing of state updates; redefined stewardship authorities  State single hydro database (NHD as keystone)  Web-enabled tools  Long-term (6-10 years) 10