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Georeferencing Water Quality Information to the NHD Kimberly Sparks Anne Marie Miller

Georeferencing Water Quality Information to the NHD Kimberly Sparks Anne Marie Miller Research Triangle Institute RTP, NC NHD Applications Symposium Austin , TX. TMDL. TMDL. Tracking. Events. System. 303(d). Events. Internet. 305(b). Events. STORET. GRTS. Events. Events.

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Georeferencing Water Quality Information to the NHD Kimberly Sparks Anne Marie Miller

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  1. Georeferencing Water Quality Information to the NHD Kimberly Sparks Anne Marie Miller Research Triangle Institute RTP, NC NHD Applications Symposium Austin , TX

  2. TMDL TMDL Tracking Events System 303(d) Events Internet 305(b) Events STORET GRTS Events Events STORET WATERS (Watershed Assessment Tracking Environmental Results System) Reach Address Database NHD National Assessment Database WQS Events GRTS (P2000) WQS Database

  3. What is the NHD-RIT? • Tool for … • georeferencing linear entities to linear route reaches in NHD • ArcView 3.x extension • – georeferencing point entities to a point along a linear route reach in NHD – georeferencing waterbody entities to waterbody reaches in NHD • Used to index 303(d) waters, 305(b) waters, Water Quality Standards, Fish Consumption Advisories, and Beaches

  4. National Hydrography Dataset (NHD)

  5. Storing Locational Information

  6. Water Quality Database Link to GIS Database Event Table Indexed to NHD NHD Coverage

  7. Linear Event Themes References to Geographic Information allow event tables to be displayed as themes in ArcView.

  8. Point Events Can be used to display drinking water intakes, point source discharges,or as a place holder for small streams that are not in the 1:100K linework.

  9. Waterbody Features Stored as shapefiles, but function similarly to event tables when used with the NHD-RIT.

  10. Technical Benefits • Hides the complexity of the dynamic segmentation model • Provides a user-friendly interface • All ArcView functions still available

  11. Management Benefits • Data integration improves decision making • Reduces Costs : • tool can be used by non-GIS staff • overall reduced time/effort to create maps • tool and data are available for free • ArcView vs. ArcInfo

  12. Waters listed under the Clean Water Act Section 303(d) (1998)

  13. http://fish.rti.org

  14. Georeferenced BeachesState of California

  15. More Information & Training NHD-RIT and reach indexing web site: http://georef.rti.org/ NHD web site: http://nhd.usgs.gov/ ksparks@rti.org

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