Nitrate in Chapel Hill, NC Drinking Water
Nitrate data for Chapel Hill, North Carolina · 107,660 residents · 4 ZIP codes
ZipCheckup's reading of Nitrate in Chapel Hill, North Carolina: Nitrate carries a high health-risk designation.
Within Chapel Hill, North Carolina, Nitrate has been detected in water samples drawn from the public supply - the results are part of the official EPA compliance record for systems here.
Data: EPA SDWIS, CCR Reports, ECHO
Nitrate in Chapel Hill Tap Water
Chapel Hill, North Carolina has 36 EPA violations related to nitrate in drinking water.
This analysis covers 107,660 residents across 4 ZIP codes in Chapel Hill.
Is Nitrate in Chapel Hill Water Safe?
If you live in an affected ZIP code, consider installing a reverse osmosis or ion exchange filter certified under NSF 53 / NSF 58 and testing your water independently.
EPA Violations for Nitrate in Chapel Hill
| Date | Violation Type | Status | ZIP Code |
|---|---|---|---|
| 2025-10-01 | Nitrate (Known) | Known | 27514 |
| 2025-10-01 | Nitrate-Nitrite (Known) | Known | 27514 |
| 2025-10-01 | Nitrate (Known) | Known | 27514 |
| 2025-10-01 | Nitrate (Known) | Known | 27516 |
| 2025-10-01 | Nitrate-Nitrite (Known) | Known | 27516 |
| 2025-10-01 | Nitrate (Known) | Known | 27516 |
| 2025-10-01 | Nitrate (Known) | Known | 27517 |
| 2025-10-01 | Nitrate-Nitrite (Known) | Known | 27517 |
| 2025-10-01 | Nitrate (Known) | Known | 27517 |
| 2025-10-01 | Nitrate (Known) | Known | 27599 |
| 2025-10-01 | Nitrate-Nitrite (Known) | Known | 27599 |
| 2025-10-01 | Nitrate (Known) | Known | 27599 |
| 2024-10-01 | Nitrate (Resolved) | Resolved | 27514 |
| 2024-10-01 | Nitrate (Resolved) | Resolved | 27516 |
| 2024-10-01 | Nitrate (Resolved) | Resolved | 27517 |
| 2024-10-01 | Nitrate (Resolved) | Resolved | 27599 |
| 2024-07-01 | Nitrate (Known) | Known | 27514 |
| 2024-07-01 | Nitrate (Known) | Known | 27516 |
| 2024-07-01 | Nitrate (Known) | Known | 27517 |
| 2024-07-01 | Nitrate (Known) | Known | 27599 |
| ... | 16 more violations |
Health Effects of Nitrate
- Methemoglobinemia ("blue baby syndrome") in infants under 6 months
- Increased risk of colorectal and bladder cancer (long-term)
- Thyroid disease from chronic exposure
- Possible reproductive effects
Health risk severity: High. Governed by the National Primary Drinking Water Regulations.
How Nitrate Gets Into Drinking Water
- Agricultural fertilizer runoff
- Animal feedlot operations and manure
- Septic system leachate
- Urban stormwater and wastewater discharge
What to Do About Nitrate in Chapel Hill Water
- Reverse osmosis is the most effective method for nitrate removal
- Ion exchange systems designed for nitrate can also work
- Standard carbon filters do NOT remove nitrate
- Boiling water increases nitrate concentration — never boil for nitrate
Look for filters certified under NSF 53 / NSF 58 for nitrate removal.