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Water Topics

Water

When the water in our rivers, lakes, and oceans becomes polluted; it can endanger wildlife, make our drinking water unsafe, and threaten the waters where we swim and fish. EPA research supports efforts under the Clean Water Act and Safe Drinking Water Act.

 

Drinking Water

  • Drinking Water Basics
    • Lead in Drinking Water
  • Local Water Quality Reports
  • Private Wells
  • Source Water Protection
  • Drinking Water State Revolving Fund
 

Water Bodies

  • Healthy Watersheds Project (HWP)
    • How's My Waterway?
    • Invasive Species
  • Lakes and Rivers
  • National Estuary Program (NEP)
  • Oceans, Coasts, Wetlands

Water Research

  • National Aquatic Resource Surveys
  • Water Data and Tools
  • Water Research
    • Water Research Publications
    • Water Research: EPANET
    • Methods and Models for Water Research
    • Microplastics Research

Wastewater and Water Treatment

  • Green Stormwater Management
  • Septic Systems
  • Wastewater Treatment
  • Clean Water State Revolving Fund

Pollution Prevention and Monitoring

  • Hydraulic Fracturing (Fracking)
  • National Pollutant Discharge Elimination System (NPDES)
    • Resources for Permit Writers
    • Stormwater Pollution
  • Nutrient Pollution
  • Per- and Polyfluoroalkyl Substances (PFAS)
  • Polluted Runoff: Nonpoint Source (NPS) Pollution

Infrastructure Finance

  • Water Infrastructure Financing
  • Funding Integration Tool for Source Water
  • Sustainable Water Infrastructure
  • Water Finance Center
  • Water Infrastructure Finance and Innovation Act (WIFIA)

Water Resilience

  • Climate Change in the Water Sector
  • Climate Ready Estuaries
  • Overview of Drinking Water & Wastewater Resilience
    • Creating Resilient Water Utilities (CRWU)

EPA & You

What You Can Do

  • What You Can Do To Protect Source Water
  • Save Water With WaterSense
  • Learn About Protecting Watersheds
  • Volunteer Water Quality Monitoring
  • Urban Water Renewal

Laws and Regulations

  • Clean Water Act
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  • Drinking Water Regulations: Maximum Contaminant Levels (MCLs)
  • Regulatory Information by Topic: Water

About EPA

  • Office of Water

Frequent Questions

  • Water FAQs
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on December 13, 2022
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