Which entity is NOT responsible for approving laboratory analytical methods for drinking water analysis?

Which entity is NOT responsible for approving laboratory analytical methods for drinking water analysis?

• A. The U.S. Environmental Protection Agency
• B. The Centers for Disease Control and Prevention
• C. The Arizona Department of Health Services
• D. The Environmental Protection Agency and the Arizona Department of Health Services

Answer: (B)

Approval of laboratory analytical methods for drinking water analysis is handled by the U.S. Environmental Protection Agency at the federal level and by the state health department (Arizona Department of Health Services) to implement and oversee those methods within the state. The EPA develops and approves standardized methods to ensure labs use consistent, validated procedures, while the state health department adopts or enforces those methods for compliance testing. The Centers for Disease Control and Prevention, although a key public health agency, does not approve drinking water analytical methods. Therefore, the entity not responsible for approving these methods is the CDC.

Approval of laboratory analytical methods for drinking water analysis is handled by the U.S. Environmental Protection Agency at the federal level and by the state health department (Arizona Department of Health Services) to implement and oversee those methods within the state. The EPA develops and approves standardized methods to ensure labs use consistent, validated procedures, while the state health department adopts or enforces those methods for compliance testing. The Centers for Disease Control and Prevention, although a key public health agency, does not approve drinking water analytical methods. Therefore, the entity not responsible for approving these methods is the CDC.