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

NHDPlus
How's my Waterway
My WATERS Mapper
All Integrated Water Analysis Tools

Ambient Water Quality

BEACON 2.0
NPDAT
National Stormwater Calculator
All Ambient Water Quality Tools

Community Financing

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

Drinking Water

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

Water Restoration

Surf Your Watershed
Watershed Index Online (WSIO)
All Water Restoration Tools

Water Quality Models

Surface Water Quality Modeling
Surface Water Quality Modeling Training

Report to Congress

View the National Water Quality Inventory Report to Congress.

Explore the Tools

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