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GIS Workshop Spring 2012: Smokestacks & Runoff: Pollutant Sources in Your Watershed   Tags: geographic information systems, geographic_information_systems, geospatial, gis, hydrology, maps, watershed, workshop  

Use Geographic Information Systems hydrology tools to measure the watershed around your home and then determine which facilities report various toxins and pollutants within this watershed. Open to all. No GIS or hydrology experience required.
Last Updated: Jan 11, 2014 URL: Print Guide RSS Updates
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Identify the watershed aroound a home address (or any address) in Tarrant or Dallas counties and then to identify potential sources of pollution within or near this watershed.

Attendees of this workshop will learn how to use the following basic hydrology tools within ArcGIS Desktop:


Workshop Resources

  • Intro Slide Presentation


Data Sources Used

USDA-NRSC: Geospatial Gateway

  • National Elevation Dataset 10 Meter

EPA: Toxic Release Inventory (TRI) Program

  • Facilities reporting emissions data to the EPA (2010)

Census TIGER 2010

  • Linear Hydrography

Bing (Microsoft)

  • Street Map

Workshop Plan

Explore Data
Navigate to the C:/water directory in Windows and launch (double-click) watershed.mxd.  Within ArcMap, we will explore each layer.

Enable Spatial Analyst Extension      

Plot Address

Flow Direction
Flow Accumulation
Snap Pour Point

Please Evaluate Before you Leave :)

Government Data Librarian

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Joshua Been

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