What is are the safe total coliform levels?

The safe total coliform levels in drinking water should be zero, as the presence of coliform bacteria indicates potential contamination by pathogens. The U.S. Environmental Protection Agency (EPA) has set a maximum contaminant level goal (MCLG) of zero for total coliforms in drinking water. Regular testing and monitoring are essential to ensure water safety and public health. If coliforms are detected, further testing is required to identify the source and determine the appropriate response.