Is Chapel Hill, NC tap water safe?
The short answer
5 of the 15 utilities serving Chapel Hill have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Chatham Co - North, Stoneridge Master, Mannsfield Condominiums and 2 more.
Orange Water & Sewer Authority, which serves the most people here, has 2 results above EPA’s new limit, which takes effect in 2029. The worst: PFOS at 4.8 ppt, above EPA’s new limit, which takes effect in 2029.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Chapel Hill’s ZIP codes, from EPA’s estimates.
- Open report
Orange Water & Sewer Authority
North Carolina · serves 86,500 people · about 18,800 in Chapel Hill
2 results above EPA’s new limit, which takes effect in 2029. The worst: PFOS at 4.8 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
Chatham Co - North
North Carolina · serves 23,088 people · about 1,000 in Chapel Hill
Nothing in its records is above a health goal.
1 health-based violation since 2016
- Open report
City of Durham
North Carolina · serves 333,490 people · about 610 in Chapel Hill
2 results above EPA’s new limit, which takes effect in 2029. The worst: PFOS at 5.8 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
Stoneridge Master
North Carolina · serves 681 people · about 520 in Chapel Hill
1 result above the action level and 1 result above the health goal. The worst: Copper at 1.6 ppm, above the action level.
No health-based violations since 2016
- Open report
Mannsfield Condominiums
North Carolina · serves 41 people · nearly all in Chapel Hill
Nothing in its records is above a health goal.
1 health-based violation since 2016
- Open report
Bingham Woods MHP
North Carolina · serves 190 people · under 100 in Chapel Hill
1 result above the health goal. The worst: Uranium at 1.6 ppb, above the health goal.
No health-based violations since 2016
- Open report
Ridgewood MHP
North Carolina · serves 330 people · under 100 in Chapel Hill
Nothing in its records is above a health goal.
1 health-based violation since 2016
- Open report
Robin`s Wood
North Carolina · serves 246 people · under 100 in Chapel Hill
1 result above the action level and 1 result above the health goal. The worst: Copper at 1.4 ppm, above the action level.
No health-based violations since 2016
- Open report
Wildcat Creek S/D
North Carolina · serves 114 people · under 100 in Chapel Hill
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
Northwood S/D
North Carolina · serves 208 people · under 100 in Chapel Hill
Nothing in its records is above a health goal.
No health-based violations since 2016
5 more utilities in Chapel Hill
By EPA’s estimate, each serves fewer people in Chapel Hill than those above.
- Chatham S/Dserves 365 people · under 100 in Chapel Hill · no health-based violations since 2016
- Chatham Pines LLCserves 98 people · under 100 in Chapel Hill · no health-based violations since 2016
- Foxboro Estatesserves 48 people · under 100 in Chapel Hill · no health-based violations since 2016
- Beechwood Cove/Polks Landingserves 406 people · under 100 in Chapel Hill · no health-based violations since 2016
- South Grove Subdivisionserves 75 people · under 100 in Chapel Hill · no health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Orange Water & Sewer Authority’s water, which serves the most people here. Another utility’s report names what handles its own results.
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ZeroWater 10 Cup Pitcher (ZP-010)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53checked Oct. 4, 2026
Certified for: PFOS, PFOA
Aquasana Claryum Direct Connect (AQ-MF-1)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOS, PFOA
Express Water StreamLine Direct Connect System (USC001)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOS, PFOA
Water testing near Chapel Hill
The 3 labs North Carolina certifies closest to Chapel Hill, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Onterris Laboratories, LLC - Durham
Durham, NC · about 9 miles
Certified for bacteria
Durham County Health Department
Durham, NC · about 12 miles
Certified for bacteria
RTI International
Research Triangle Park, NC · about 14 miles
Certified for lead and copper, metals
Which ZIP codes are in Chapel Hill: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: North Carolina State Laboratory of Public Health, certified drinking water laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Chapel Hill
Other towns in Orange County with a page of their own.
What to do next
- Read Orange Water & Sewer Authority’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOSRanked by certification and what they cost over five years.The best water filters for PFAS, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water