One of hundreds of strains of the bacterium Escherichia coli, E. coli O157:H7 is an emerging cause of food-borne and water-borne illness. Most strains of E. coli are harmless and live in the intestines of healthy humans and animals and consequently, provide an excellent fecal indicator.
Infection often causes severe bloody diarrhea and abdominal cramps; sometimes the infection causes non-bloody diarrhea. Frequently, no fever is present. It should be noted that these symptoms are common to a variety of diseases, and may be caused by sources other than contaminated drinking water.
MCL ADVISORY - ACTION IS REQUIRED
E. coli levels were detected in your water sample to exceed the maximum contaminant level (MCL).
- Ohio Department of Health - Private Water Systems Program - Water Quality - Escherichia coli (E. coli)
- USEPA - Water: Basic Information about Regulated Drinking Water Contaminants - Basic Information about Pathogens and Indicators in Drinking Water
- USEPA - Water: Basic Information about Regulated Drinking Water Contaminants - Basic Information about E. coli O157:H7 in Drinking Water
- USEPA - Water: Monitoring & Assessment - Fecal Bacteria
- CDC - Drinking Water - Well Testing
- CDC - Drinking Water - E. coli 0157:H7 and Drinking Water from Private Wells