Why is monitoring coliform bacteria levels in water supplies important?

Monitoring coliform bacteria levels in water supplies is crucial primarily to detect sewage contamination. Coliform bacteria serve as indicators of water quality, particularly because their presence suggests that harmful pathogens may also be present from fecal matter. This is especially pertinent in agricultural settings like dairy farms, where safe water is essential for both animal health and milk production.

When coliform levels are elevated, it raises significant concerns about the safety of the water for consumption by animals and the potential for contamination of milk. Ensuring that water is free from these bacteria helps to prevent disease in livestock and maintains the overall quality and safety of the milk produced. Thus, regular testing for coliform bacteria is a vital practice in the dairy industry to safeguard both animal welfare and product quality.