1 U.S. Environmental Protection Agency NHDPlus is a suite of application-ready geospatial products that build upon and extend the capabilities of the National Hydrography Dataset (NHD) by integrating it with the National Elevation Dataset and National Watershed Boundary Dataset. NHDPlus provides: Updated network relationships enable robust up/downstream navigation. Additional hydrographic feature names enable improved map labeling, query-by-name, and linking of water quality data. Fourteen different Value-Added Attributes, including stream order, are derived from the underlying NHD and enable advanced query, analysis and display functionality. Incremental and cumulative drainage areas for each stream segment in the NHD network enable analysis of associated landscape characteristics, including temperature, precipitation and land cover. Mean annual stream flow volume and velocity for each stream segment in the NHD network enable time-of-travel and pollutant dilution modeling. A rich set of hydrographic features for making maps. A stream addressing system for linking water quality data to the NHD network. A drainage network for supporting up/downstream query, analysis and modeling. The National Hydrography Dataset is a comprehensive set of digital geospatial data that contains information about surface water features such as streams, rivers and lakes. The NHD provides: Enhanced NHD Network & Names Value-Added Attributes Catchments With Attributes Flow Volume and Velocity Estimates Flow direction and accumulation grids associate the land surface (topography) with the NHD network enabling landscape analysis and characterization. Flow Direction & Accumulation Grids A National Geospatial Surfacewater Framework (

2 U.S. Environmental Protection Agency Enhancements to NHDPlus – –Medium Resolution (1:100,00-scale NHD) Complete build/refresh toolset (2010) National refresh using (2011): – –Latest NHD and NED – –Now completed WBD – –Monthly flow estimates – –Ability to incorporate water additions and removals Future spatial integration of NHD and WBD through stewardship program – –High Resolution (1:24,000-scale or better NHD) State pilots

3 U.S. Environmental Protection Agency NHDPlus Data – Tools and Technology Med Res Stewardship NHDPlus v1.0 EPA NHD Editing Tools ArcGis DT Shapefiles and dbfs Geographic NAD 83 NHD v1.06 PGDB2Shp Shp2PGDB BuildFlow XMLExtract ComID Reachcode Allocator NHD Med Res Snapshot v1.04 ArcGis DT Shapefiles, grids and dbfs Geographic NAD 83 ComID, M-Values, reachcode, ftype, VAAs, Flowdir NHDPlus v2.0 Build/Refresh NHD Med Res Snapshot v1.06 (1.07?) WBD Snapshot v2.0 ArcGis DT SQL Server Shapefile, grids, dbfs and mdfs (fgdb?) Geographic NAD 83 Non-spatial flow table connections ComID, M-values, reachcodes, fcodes, fdate, ReachSMDate WBD Reachcode Sync Non-NHD VAAs In/out network flag

4 U.S. Environmental Protection Agency NHDPlus Applications/Tools ArcGis DT SQL Server Shapefile, grids, dbfs and mdfs Some pgdb (fgdb?) Non-spatial flow table connections ComID, M-values, reachcodes, Ftypes, Fcodes, Fdate, ReachSMDate NHDPlus Tools/Services Basin Delineator Catchment Allocation and Accumulation NHD Flow Table Navigator NHD Releveler NHDPlus Build/Refresh User tools: NHD QAQC and NHDPlus VAA Computation VAA Navigator CT River Atlas Basin Delineation Web Service NHDPlus Applications – Tools and Technology

5 U.S. Environmental Protection Agency WATERS/RAD 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) (

6 U.S. Environmental Protection Agency 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 Stations (coming in 2010!)Water Quality Stations (coming in 2010!) Internal Access Only Drinking Water IntakesDrinking Water Intakes Source Water AreasSource Water Areas Special Appropriations ProjectsSpecial Appropriations Projects

7 U.S. Environmental Protection Agency WATERS/RAD Technical Architecture

8 U.S. Environmental Protection Agency 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 Performance concerns with EPA IT infrastructure!

9 U.S. Environmental Protection Agency 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

10 U.S. Environmental Protection Agency Callable from Flex, Bing and Google Maps

11 U.S. Environmental Protection Agency So What? Second National Geographic special issue on Water in recent years (April, 2010) 2010 National Water Quality Monitoring Conference (Denver, CO – April 26-29), Monitoring From the Mountains to the Sea, plenary speakers – –Anne J. Castle, Assistant Secretary for Water and Science, U.S. Department of the Interior – –G. Tracy Mehan III, Principal, The Cadmus Group and Former Assistant Administrator for Water, U.S. Environmental Protection Agency – –Thomas L. Tidwell, Chief, U.S. Forest Service – –Robert M. Hirsch, Research Hydrologist and Former Associate Director for Water, U.S. Geological Survey We are in trouble in managing our water resources – non-point source pollution, climate change (lack of stationarity) creates moving target, oils spills …

12 U.S. Environmental Protection Agency USGS NAWQA SPARROW Models for Major River Basins

13 U.S. Environmental Protection Agency 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

14 U.S. Environmental Protection Agency Anticipated 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 (Share your NHDPlus applications with others at > 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 (Share your NHDPlus applications with others at > NHDPlus Quicklink)

15 U.S. Environmental Protection Agency Maintaining and Enhancing Our Surfacewater Infrastructure We succeeded at production – putting the plumbing in place (70 million investment?) However, stewardship has stumbled largely due to institutional change (production to stewardship) combined with A-76 competitive sourcing fallout – tools and process too cumbersome, loss of institutional knowledge, project management issues, … Need to have a sense of urgency about our work - slowly rebounding, but extra resources are one time allocation and another usgs reorganization is rumored Being able to articulate a short/mid/long term NHD/WBD (NHDPlus/Streamstats) plan – including technical architecture - will bode well for this program I don’t believe that the stewardship community can sustain another several years like the last 3 We succeeded at production – putting the plumbing in place (70 million investment?) However, stewardship has stumbled largely due to institutional change (production to stewardship) combined with A-76 competitive sourcing fallout – tools and process too cumbersome, loss of institutional knowledge, project management issues, … Need to have a sense of urgency about our work - slowly rebounding, but extra resources are one time allocation and another usgs reorganization is rumored Being able to articulate a short/mid/long term NHD/WBD (NHDPlus/Streamstats) plan – including technical architecture - will bode well for this program I don’t believe that the stewardship community can sustain another several years like the last 3

16 U.S. Environmental Protection Agency Questions? Tommy Dewald, USEPA Office of Water ( > NHDPlus Quicklink)

17 U.S. Environmental Protection Agency NHDPlus Tools and Applications EPA Applications USGS Applications RAD/Waters CWA Programs Georeferencing and Hydrologic Analysis Waterbody Assessments, Impairments, TMDLs National Aquatic Resource Surveys Pesticide Reauthorization Drinking Water Source Water Protection Areas Sparrow Nutrient Modeling NAQWA - Major River Basin Modeling Great Lakes Restoration Initiative StreamStats – current base for some states StreamStats – future built using NHDPlus Build/Refresh tools National User Community The Nature Conservancy Army COE FWS Forest Service NOAA Bureau of Reclamation Universities: PSU, TX, ID, KS, MS, KY, MD, CO States: KS, NY, PA, NH, CA, NE, TX, more… High Resolution NHD Stewards ESRI

18 U.S. Environmental Protection Agency 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)