Which category of drinking water standards addresses taste, odor, and appearance rather than health-based limits?

• A. Secondary Drinking Water Standards
• B. Primary Drinking Water Regulations
• C. Maximum Contaminant Levels
• D. Disinfection By-Products Standards

Answer: (A)

Taste, odor, and appearance fall under issues that affect how water is perceived and used, not direct health risk. The category that addresses these aesthetic and nuisance aspects is Secondary Drinking Water Standards. These are non-enforceable guidelines focused on aspects like color, odor, taste, and other cosmetic factors that influence consumer acceptance and water system operation.

Primary Drinking Water Regulations, including Maximum Contaminant Levels, set health-based limits that protect public health and are enforceable. Disinfection By-Products Standards concern chemicals formed during disinfection and are part of health-based, primary standards. So the standard category that specifically targets taste, odor, and appearance is Secondary Drinking Water Standards.