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Track: Environmental Management
Thomas Born
U.S. EPA
401 M Street SW
MD 2162
Washington, DC 20460
Telephone: 202-260-4905
Fax: c/o Matt Moss (703) 908-2600
E-mail: born.thomas@epamail.epa.gov
Matthew Moss, Justin Brown
Ecological Sensitivity Targeting and Assessment Tool (ESTAT)
Defining Issue: EPA, state, and community environmental decision makers identify and assess environmental problems that may affect ecosystem quality and human health. GIS Solution: The Ecological Sensitivity Targeting and Assessment Tool (ESTAT v1.0) integrates information on contaminant releases from EPA-regulated facilities (from databases such as TRIS, PCS, AIRS, and BRS) with information on ecological resources such as spatial data for sensitive areas and associated endangered species data. Methodology: ESTAT can model and map the air dispersion and downstream water dilution of contaminants that may affect important areas such as ecoregions, hydrologic units, counties, national wildlife refuges, and national parks. ESTAT can also spatially display information to portray relationships between EPA-regulated activities and natural and urban areas. Users can click and zoom on any area of the United States to produce point maps or choropleth maps of contaminant releases by ecoregion, hydrologic unit, or
around sensitive ecological areas at national, regional, or local scales. ESTAT can also generate and print hard-copy maps and tabular data reports. Air modeling within ESTAT is performed using the Industrial Source Complex Long-Term (ISCLT2) model adapted from the PC environment to function under UNIX. For water modeling, ESTAT uses the PROUTE model, which simulates downstream flow and concentration resulting from upstream dischargers, accounting for chemical decay under steady-state conditions. Software: ESTAT is a multimedia modeling, mapping, and analysis tool that uses ArcInfo Version 7.0.3, DG/UX 5.4R3.10TC2, DOS 6.0 or later, Windows 3.1, Novell LAN WorkPlace for DOS or LAN WorkGroup, HCL-eXceed/W V.5.0.1, Oracle 7.0, or later.
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