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. Drinking Water and Wastewater Laboratory Networks

Request Analytical Services for your Water Laboratory

On this page:
  • Identify analytical support
  • Provide analytical support

Identify analytical support

Utilities or laboratories that are experiencing a water contamination event and need to identify analytical support can contact their:

  • Local laboratories
  • State agency or laboratory
  • Laboratories using EPA's Compendium of Environmental Testing Laboratories
  • EPA Regional Laboratory
  • Environmental Response Laboratory Network/Water Laboratory Alliance Helpline at (703) 818-4200 Monday-Friday from 8:30AM-5:00PM ET, except for federal holidays

Provide analytical support

If your laboratory is providing emergency analytical support during a water contamination event, refer to our reimbursement tips document.

Drinking Water and Wastewater Laboratory Networks

  • Water Laboratory Alliance (WLA)
    • Learn about the WLA
    • Become WLA Member
    • Become a WLA Liaison
    • WLA Response Plan
    • WLA Learning Center
  • Laboratory Assistance
    • Contact Certified Drinking Water Labs
    • Request Analytical Services
    • Laboratory Compendium
  • Water Contaminant Information Tool (WCIT)
    • Register for WCIT
    • Access WCIT
    • Explore What's New in WCIT
  • Plan Ahead
    • Continuity of Operations Plan (COOP)
    • Find a Water Laboratory Method
    • Sampling Guidance for Unknown Contaminants
    • WLA Analytical Preparedness Self-Assessment
  • Practice a Laboratory Response
    • Access Laboratory Support
    • Plan a Laboratory Full-Scale Exercise
Contact Us About Drinking Water and Wastewater Laboratory Networks
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 29, 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.