Coliform Bacteria Test Results

Coliform bacteria are found in the environment and in the feces of humans and animals. Most coliform bacteria do not cause illness. However, they can indicate that other disease-causing organisms may be present in the water. E coli is a type of coliform bacteria that can cause very serious illness. It is found in the intestines of birds and mammals. If E coli is found in a water supply, it can indicate that the water is contaminated with sewage.

Annual water testing for coliform bacteria is advised for your well. In addition, test if you notice a sudden change in your water's taste, appearance or odor; the water turns cloudy after rainfall; the top of the well was flooded; you suspect a contamination source (septic system, barnyard, etc.) is within 50 feet of your well; your water supply system has been repaired; or, family members are experiencing unexplained stomach flu-like symptoms.

Test Results

Coliform Bacteria Absent

No coliform bacteria organisms were found in the water sample.

Coliform Bacteria Present

Coliform organisms were found in the water sample. This indicates possible pollution in your well. Do not drink or cook with this water. You need to disinfect your well and re-sample the water. Contact our office at 734-222-3800 for assistance.

E. coli Level

If anything other than 0, Non-detect or ND is listed, it means that E coli bacteria were found in the water sample. Do not drink or cook with this water. Well construction defects and routes for sewage contamination into the water supply need to be investigated. After any necessary repairs are made, you need to disinfect your well and re-sample the water. Contact our office at 734-222-3800 for assistance.

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