National Hydrography Dataset Plus NHDPlus Applications Sampler Tommy

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National Hydrography Dataset Plus (NHDPlus) Applications Sampler Tommy Dewald / USEPA Office of Water

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

Co-Occurrence of Impaired Waters and FWS Properties An EPA, FWS and USGS Joint National

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

USGS NAWQA SPARROW Models for Major River Basins

USGS NAWQA SPARROW Models for Major River Basins

Other Noteworthy NHDPlus Applications • First ever spatially-based national pesticide risk assessment • Clean

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)

WATERS Data Architecture (Watershed Assessment, Tracking & Environmental Result. S) (www. epa. gov/waters) WQSDB

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

Data Accessible Through WATERS Internal Access Only Public Access • Drinking Water Intakes •

Data Accessible Through WATERS Internal Access Only Public Access • Drinking Water Intakes • Listed Impaired Waters • Source Water Areas • Assessed Waters • Special Appropriations Projects • Beaches • Clean Watershed Needs • Combined Sewer Overflows • CWSRF Benefits Reporting • Permitted Dischargers • Fish Consumption Advisories • Fish Tissue Data • Impaired Waters with TMDLs • Sewage No Discharge Zones • Nonpoint Source Projects • Water Quality Standards • Water Quality Stations

WATERS Web Services • Public facing Web services for creating and applying NHD events

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!

Viewing WATERS Data in Google Earth • Access to framework geospatial datasets stored in

Viewing WATERS Data in Google Earth • 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. www. epa. gov/waters/tools

… with Associated Observations NHD Field Name Value GNIS_NAME Lubber Run REACHCODE 0207001022 F_MEAS

… with Associated Observations NHD Field Name Value GNIS_NAME Lubber Run REACHCODE 0207001022 F_MEAS 80 T_MEAS 80

Linear ‘Observations’ Are Also Linked to the Hydro Network

Linear ‘Observations’ Are Also Linked to the Hydro Network

Drainage Area Delineation Based Upon Aggregated Catchments

Drainage Area Delineation Based Upon Aggregated Catchments

Geo Web Services Need to Perform • Performance issues for large data volumes •

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)

International view Delivering web-based hydro map display and networkbased discovery and analysis Hydro Network

International view Delivering web-based hydro map display and networkbased discovery and analysis Hydro Network Catalog Containers National view HUCs Linked Data Esri hydro base map (15+ layers) • MRB • HUC 2 • HUC 4 • HUC 6 • HUC 8 • HUC 10 • HUC 12 HUCs Catchments Events Attributes (raw data and analytical results) HUC Attributes Catchments 100 k view (Med res) Drainage Areas (watersheds) Catchment Attributes Events 24 k or better view (High res) Event Attributes

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

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