Which regulation promotes routine surveillance of water quality to detect fecal contamination?

• A. Interim Enhanced Surface Water Treatment Rule (IESWTR)
• B. Total Coliform Rule (TCR)
• C. Surface Water Treatment Rule (SWTR)
• D. Ground Water Rule (GWR)

Answer: (B)

The Total Coliform Rule (TCR) is specifically designed to promote the routine surveillance of water quality, focusing on the detection of fecal contamination in drinking water systems. This regulation establishes monitoring requirements for total coliform bacteria, which include certain indicators of fecal contamination such as E. coli. The presence of total coliforms suggests that the water may be contaminated with fecal matter, which can lead to the presence of pathogens harmful to human health.

By mandating regular testing of water samples for these bacteria, the TCR ensures that any potential contamination can be identified promptly, allowing for immediate action to safeguard public health. Monitoring for total coliforms and ensuring compliance with the TCR helps water systems maintain the safety and quality of drinking water. This regulation is critical for protecting consumers from waterborne diseases that can arise from fecal contamination.

While the other regulations mentioned—such as the Interim Enhanced Surface Water Treatment Rule, Surface Water Treatment Rule, and Ground Water Rule—also address water quality and treatment processes, they focus on different aspects and do not specifically emphasize the routine surveillance of fecal contamination in the same way the TCR does.