Coliforms are bacteria that are naturally present in the environment and are used as an indicator that other, potentially-harmful, bacteria may be present.
PUBLIC WATER SYSTEMS - Please consult the Ohio EPA.
PRIVATE WATER SYSTEMS w/ CONTINUOUS DISINFECTION - Private water systems using continuous disinfection such as shallow wells, rainwater cisterns, springs, or ponds, or for hauled water storage tanks that receive water from a public water supply, the lab results for a 100 ml water sample shall have: -No detection of any total coliform colony forming units (CFUs) or less than 1 most probable number (MPN). -No detection of E. coli (less than one CFU or MPN) The absence of total coliform and E. coli in a water sample is a good indicator that a disinfection system is functioning properly.
MCL ADVISORY - ACTION IS REQUIRED
Total coliform levels were present in your water sample.
- Ohio Department of Health - Private Water Systems Program - Water Quality - Total Coliform
- USEPA - Water: Basic Information about Regulated Drinking Water Contaminants - Basic Information about Pathogens and Indicators in Drinking Water
- USEPA - Water: Monitoring & Assessment - Fecal Bacteria
- CDC - Drinking Water - Well Testing