Fecal coliform refers to a group of bacteria found in the intestines of warm-blooded animals, including humans. These bacteria are commonly used as indicators of water quality, particularly in assessing the presence of pathogens that can cause disease. High levels of fecal coliform in water can suggest contamination from sewage or animal waste. Testing for fecal coliform is essential for ensuring safe drinking water and recreational water quality. Regulatory agencies often set limits on acceptable levels of these bacteria in water bodies to protect public health. Monitoring helps prevent outbreaks of waterborne illnesses and maintains ecosystem health.