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

Find a Water Laboratory Method

 

Selected Analytical Methods for Environmental Remediation and Recovery

EPA’s Selected Analytical Methods for Environmental Remediation and Recovery (SAM) contains methods that laboratories should use when analyzing environmental samples for a homeland security event. Access the following:

  • Online query for SAM to find chemical, radiochemical and biotoxin method
  • PDF version of SAM to find pathogen methods in addition to chemical, radiochemical and biotoxin methods
  • SAM updates

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 March 11, 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.