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Databases and Mapping
Data Systems | Databases | Mapping | Water Quality Models
Data Systems
- STOrage and RETrieval System for National Water Data (STORET)
- Safe Drinking Water Information System, Federal Version
- Safe Drinking Water Information System, State Version
Databases
- Beach Watch
- Clean Water Needs Survey
- Information Collection Rule
- Latest National Listing of Fish Consumption Advisories: Database
- National Assessment Database
- National Contaminant Occurrence Database
- Nutrient Criteria Database
- Water Quality Standards Data Base (Intranet version)
Mapping
- National Hydrography Dataset (NHD)
The National Hydrography Dataset is a comprehensive coverage of hydrographic data for the United States. It was developed by combining EPA Reach File version 3 (RF3) and the USGS Digital Line Graph (DLG) coverages. Information on previous versions of EPA Reach Files is availale.
- Watershed Assessment,
Tracking and Environmental Results (WATERS)
The WATERS information system uses EPA's standard mapping application to display water quality information about local waters. WATERS unifies information about water quality goals from EPA's Water Quality Standards Database with information about impaired waters from EPA's Total Maximum Daily Load (TMDL) Database. A factsheet on WATERS (PDF format, 14KB) is available.
Water Quality Models
- BASINS
- Enhanced Stream Water Quality Model, Windows (QUAL2K)
- Aquatox
- CORMIX
- Mercury Maps
- Allocating Loads
