# Total Coliforms (including fecal coliform and E. Coli) — Drinking water contaminant limits by regulator

For Total Coliforms (including fecal coliform and E. Coli), regulator is US EPA (National Primary Drinking Water Regulations); limit is 5.0%; unit is %; limit type is MCL (Maximum Contaminant Level), recorded from its source on 2026-08-06.

- **Contaminant:** Total Coliforms (including fecal coliform and E. Coli)
- **Regulator:** US EPA (National Primary Drinking Water Regulations) _(our reading, not quoted from the source)_
- **Limit:** 5.0% _(verified: appears in the quote below)_
- **Unit:** % _(verified: appears in the quote below)_
- **Limit type:** MCL (Maximum Contaminant Level) _(our reading, not quoted from the source)_

## What the source says

> zero | 5.0% 4 | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present

## Source

- https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations

Last verified: 2026-08-06. Review by: 2027-08-06.
Part of [Drinking water contaminant limits by regulator](https://referencesource.org/drinking-water-contaminant-limits/).