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Water Data and Tools

Discover how data and tools help EPA protect and restore our waters to ensure that they are drinkable, fishable and swimmable. Learn about the following categories of water data tools:

Integrated Water Analysis

Integrated Water Analysis
  • NHDPlus
  • WATERS GeoViewer
  • How's My Waterway
  • All Integrated Water Analysis Tools

Ambient Water Quality

Ambient Water Quality
  • ATTAINS
  • BEACON 2.0
  • National Stormwater Calculator
  • All Ambient Water Quality Tools

Community Financing

Community Financing
  • Water Finance Clearinghouse
  • Financing Alternatives Comparison Tool
  • Grants Reporting and Tracking System (GRTS)
  • All Community Financing Tools

Drinking Water

Drinking Water
  • Safe Drinking Water Information
  • Water Contaminant Information Tool (WCIT)
  • Water Utility Response On The Go
  • All Drinking Water Tools

Water Restoration

Water Restoration
  • How's My Waterway
  • Watershed Index Online (WSIO)
  • All Water Restoration Tools

Water Quality Models

Water Quality Models

  • Surface Water Quality Modeling
  • Surface Water Quality Modeling Training

Report to Congress

  • View the National Water Quality Inventory Report to Congress.

 

Contact Us to ask a question, provide feedback, or report a problem.
Last updated on June 9, 2022
United States Environmental Protection Agency

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