Is Siler City, NC tap water safe?
The short answer
1 of the 2 utilities serving Siler City has 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 - Sw Chatham.
Town of Siler City, which serves the most people here, has 2 results above EPA’s new limit, which takes effect in 2029. The worst: PFOS at 12.1 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 Siler City’s ZIP codes, from EPA’s estimates.
- Open report
Town of Siler City
North Carolina · serves 8,520 people · about 400 in Siler City
2 results above EPA’s new limit, which takes effect in 2029. The worst: PFOS at 12.1 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
Chatham Co - Sw Chatham
North Carolina · serves 2,470 people · under 100 in Siler City
Nothing in its records is above a health goal.
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Town of Siler City’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 Siler City
The 3 labs North Carolina certifies closest to Siler City, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Cameron Testing Services Inc.
Sanford, NC · about 20 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Tri State Water Systems
Randleman, NC · about 22 miles
Certified for bacteria
Onterris Laboratories, LLC - Durham
Durham, NC · about 31 miles
Certified for bacteria
ZIP codes in Siler City
Which ZIP codes are in Siler City: 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 Siler City
Other towns in Chatham County with a page of their own.
What to do next
- Read Town of Siler City’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