Fecal coliform is a type of bacteria found in the feces of warm-blooded animals. When found in water bodies it can be an indicator of the presence of other disease-carrying organisms. Fecal coliform bacteria can get into water bodies from failing septic systems and animal waste. High levels of fecal coliform in the water can affect the public health, economy, and environmental quality of a community.
A long history of illness outbreaks and epidemics have demonstrated a relationship between the presence of fecal coliform bacteria and the presence of illness-causing viruses and bacteria, called pathogens. These pathogens can be accidentally swallowed with water. People swimming or playing in water can be exposed to pathogens when they enter the body through small cuts, abrasions or mucus membranes.
Some of the symptoms of illnesses associated with fecal coliform pathogens are minor, such as upset stomach, diarrhea, ear infections, and rashes. However, some pathogens, such as E coli, hepatitis, and Salmonella, can have very severe health effects. Washington State’s water quality standard for fecal coliform bacteria is set to protect public health.
People can help keep bacteria out of the water. Properly collect, bag, and trash dog poop. Check your on-site sewage system to make sure it is maintained and working properly.
For more on fecal coliform check out our focus sheet: