Clean, safe drinking water is one of the most important elements of good health. Private well owners are responsible for testing their drinking water.

Coliform are a group of bacteria that are common in nature. Some coliform bacteria can cause illness while others do not. Drinking water should not have coliform bacteria in it. When coliform are present, the well may have been contaminated by soil or feces and could indicate the presence of a disease-causing organism called E. Coli.

Nitrate can enter groundwater from fertilizers and from animal and human waste. If the nitrate level is less than 10 parts per million (ppm) it is safe for drinking, preparing food, or showering. High levels of nitrate can cause birth defects, thyroid problems, and certain kinds of cancer. For infants on formula made with high nitrate water, the nitrates interfere with the ability of the blood to carry oxygen. 

Fluoride naturally occurs in water and is a safe and effective way to reduce tooth decay. While rare, too high of levels could harm your health so regular testing of water is advised.