Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Safe Drinking Water Act

Drinking Water Optimization Program Goals and Guidelines

The Area-Wide Optimization Program (AWOP) has adopted performance and monitoring goals, as well as operational guidelines, for public water systems (PWSs) to consider if they want to pursue “optimization.” AWOP goals and guidelines go beyond the drinking water regulatory requirements established to protect public health.  The proactive AWOP approach helps PWSs to optimize their treatment and distribution systems, identify infrastructure needs, help ensure compliance with the regulations, and enhance public health protection.  AWOP participation is voluntary and many AWOP states have recognition programs to highlight PWSs that meet the performance goals.

Program guidelines provide best-management practices to achieve water quality goals. The AWOP approach is based on years of research, EPA and primacy agency implementation experience, and consideration of regulatory requirements.

  • Goals and Operational Guidelines for those Pursuing Optimization (pdf) (312.78 KB, 2024, 815-B-24-012)

Safe Drinking Water Act

  • Overview of the Law
  • Regulations Under Development
  • Developing Regulations
Contact Us About the Safe Drinking Water Act
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on May 20, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.