1. National Hydrography Dataset Plus (NHDPlus) Applications Sampler Tommy Dewald / USEPA Office of Water http://www.wordle.net Arc Hydro River Workshop Austin, TX – Dec 1-3, 2010 Arc Hydro River Workshop Austin, TX – Dec 1-3, 2010

2. Co-Occurrence of Impaired Waters and FWS Properties An EPA, FWS and USGS Joint National Assessment Co-Occurrence of Impaired Waters and FWS Properties An EPA, FWS and USGS Joint National Assessment National Fish Hatchery System National Wildlife Refuge System Impaired Waters

3. USGS NAWQA SPARROW Models for Major River Basins

4. Other Noteworthy NHDPlus Applications First ever spatially-based national pesticide risk assessment Clean Water Act jurisdictional analysis update ESRI Hydro Base Map Native American historical migration paths Aquatic habitat classification Mapping Critical Loads of Atmospheric Nitrogen Deposition in the Rocky Mountains (Share your NHDPlus applications with others at www.epa.gov/waters > NHDPlus Quicklink) First ever spatially-based national pesticide risk assessment Clean Water Act jurisdictional analysis update ESRI Hydro Base Map Native American historical migration paths Aquatic habitat classification Mapping Critical Loads of Atmospheric Nitrogen Deposition in the Rocky Mountains (Share your NHDPlus applications with others at www.epa.gov/waters > NHDPlus Quicklink)

5. WATERS Data Architecture National Hydrography Hydrography Dataset Plus Dataset Plus Nonpoint Source Grants GRTS Water Quality Standards WQSDB Water Quality Assessments, Impaired Waters & Total Maximum Daily Loads ATTAINS Water Quality Monitoring STORET Reach Address Database (RAD) (Watershed Assessment, Tracking & Environmental ResultS) (www.epa.gov/waters)

6. Data Accessible Through WATERS Public Access Listed Impaired WatersListed Impaired Waters Assessed WatersAssessed Waters BeachesBeaches Clean Watershed NeedsClean Watershed Needs Combined Sewer OverflowsCombined Sewer Overflows CWSRF Benefits ReportingCWSRF Benefits Reporting Permitted DischargersPermitted Dischargers Fish Consumption AdvisoriesFish Consumption Advisories Fish Tissue DataFish Tissue Data Impaired Waters with TMDLsImpaired Waters with TMDLs Sewage No Discharge ZonesSewage No Discharge Zones Nonpoint Source ProjectsNonpoint Source Projects Water Quality StandardsWater Quality Standards Water Quality StationsWater Quality Stations Internal Access Only Drinking Water IntakesDrinking Water Intakes Source Water AreasSource Water Areas Special Appropriations ProjectsSpecial Appropriations Projects

7. WATERS Web Services Public facing Web services for creating and applying NHD events and NHDPlus, including mapping services –Enhanced from DB and SOAP to HTTP/REST –Code playground and javascript library –Transparency and efficiency for developers Visit www.epa.gov/waters/tools Performance concerns with EPA IT infrastructure!

8. Access to framework geospatial datasets stored in the WATERS Database and to general purpose interactive service panels. Dialog boxes providing access to tools, services, and information, such as NHD feature name query, total waters, up/downstream navigation, watershed reports, ATTAINS reports, etc. Access to indexed water program features, with hyperlinks to additional attributes, and context sensitive analysis services, such as up/downstream navigation and watershed reports. Viewing WATERS Data in Google Earth www.epa.gov/waters/tools

9. … with Associated Observations NHD Field NameValue GNIS_NAMELubber Run REACHCODE02070010001022 F_MEAS80 T_MEAS80

10. Linear ‘Observations’ Are Also Linked to the Hydro Network

11. Drainage Area Delineation Based Upon Aggregated Catchments

12. Geo Web Services Need to Perform Performance issues for large data volumes Boosting performance –Database tuning –Pre-computed network navigation attributes –Pre-computed results geometries –Cloud computing –Others? Spinning Pinwheel (formerly, the Dreaded Dancing Dot)

13. National view 100k view (Med res) 24k or better view (High res) Esri hydro base map (15+ layers) International view Delivering web-based hydro map display and network- based discovery and analysis Events Catchments HUCs MRB HUC2 HUC4 HUC6 HUC8 HUC10 HUC12 Catchment Attributes Event Attributes HUC Attributes Linked Data Drainage Areas (watersheds) Containers Attributes Hydro NetworkCatalog HUCs Catchments Events (raw data and analytical results)

14. Questions? Tommy Dewald, USEPA Office of Water dewald.tommy@epa.gov (www.epa.gov/waters > NHDPlus Quicklink)