All water samples are tested for all waterborne diseases.

All water samples are tested for all waterborne diseases.

• A. True
• B. False
• C. Only a subset of diseases is tested
• D. Not tested for disease at all

Answer: (B)

Testing every sample for every waterborne disease isn’t practical. In practice, water utilities monitor using indicator organisms (like total coliforms and E. coli) to quickly gauge water quality and flag potential contamination. If those indicators raise concern, more specific, targeted tests for particular pathogens may be performed. Regulators define required tests and frequencies, but they don’t mandate checking every disease in every sample. So, only a subset of diseases is routinely tested.

Testing every sample for every waterborne disease isn’t practical. In practice, water utilities monitor using indicator organisms (like total coliforms and E. coli) to quickly gauge water quality and flag potential contamination. If those indicators raise concern, more specific, targeted tests for particular pathogens may be performed. Regulators define required tests and frequencies, but they don’t mandate checking every disease in every sample. So, only a subset of diseases is routinely tested.