E. coli in North Carolina well water
In North Carolina, 5% of 229 tested private well samples exceeded the EPA limit for E. coli (0 MPN/100mL).
E. coli in a well means fecal contamination from septic systems, animals or surface water entering the well. It can cause serious gastrointestinal illness. Any detection is a failure.
Check your E. coli number
Type the value from your lab report. It is compared to the EPA limit, the same way the full interpretation does it.
Getting it fixed
Book a free in-home water test with a licensed local company, or see the treatment guide for what removes E. coli.
By county, from individual samples
Public monitoring samples against the EPA limit (0 MPN/100mL); counties with at least 30 samples.
| County | Samples | Detected | Above EPA limit | Median | Highest |
|---|---|---|---|---|---|
| Orange | 50 | 18% | 18% | 0 | 52 MPN/100mL |
| Brunswick | 37 | 0% | 0% | 0 | 0 MPN/100mL |
- Bingham township, Orange County18% of 50
Sources
- Individual samples from the USGS Water Quality Portal and state monitoring, summarized per geography. E. coli counts and shares are listed on each county and town page with their sources.