Is Unionville, PA tap water safe?
The short answer
1 of the 5 utilities serving Unionville has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Pennsylvania’s records: Kennett Square Mun Water Works.
PA American Water Co Butler, which serves the most people here, has 1 result above the health goal. The worst: Lead at 2.0 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
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 Unionville’s ZIP codes, from EPA’s estimates.
- Open report
PA American Water Co Butler
Pennsylvania · serves 43,286 people · about 1,200 in Unionville
1 result above the health goal. The worst: Lead at 2.0 ppb, above the health goal.
No health-based violations since 2016
- Open report
Unionville Muni Waterworks
Pennsylvania · serves 290 people · about 230 in Unionville
1 result above the health goal. The worst: Lead at 3.0 ppb, above the health goal.
No health-based violations since 2016
- Open report
Chester Water Authority
Pennsylvania · serves 140,437 people · about 130 in Unionville
1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOA at 4.4 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
Kennett Square Mun Water Works
Pennsylvania · serves 6,328 people · about 110 in Unionville
2 results above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: PFOA at 16 ppt, above EPA’s new limit, which takes effect in 2029.
2 health-based violations since 2016
- Open report
Aqua PA West Chester
Pennsylvania · serves 48,600 people · under 100 in Unionville
1 result above EPA’s new limit, which takes effect in 2029 and 1 result above the health goal. The worst: PFOA at 6.8 ppt, above EPA’s new limit, which takes effect in 2029.
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 PA American Water Co Butler’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Brita Tahoe Pitcher with Elite Filter (OB60, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
- IAPMO listing:NSF/ANSI 53checked Oct. 13, 2026
Certified for: Lead
Brita Everyday Pitcher with Elite Filter (OB46, OB06)
Pitcher
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 13, 2026
Certified for: Lead
PUR PLUS 11-Cup Pitcher (PPT111W)
Pitcher
- NSF listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 4, 2026
Certified for: Lead
Water testing near Unionville
The 3 labs Pennsylvania certifies closest to Unionville, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
SPL - State College
State College, PA · about 29 miles
Certified for bacteria
TGAI Laboratories LLC
State College, PA · about 29 miles
Certified for bacteria
Agricultural Analytical Services Laboratory
University Park, PA · about 30 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Penn State Agricultural Analytical Services Laboratory: Drinking water test kits from many county Extension offices, mailed back to the lab overnight with payment. Packages cover bacteria and basic chemistry, with add-ons for nitrate, metals, lead, and mining or gas drilling concerns. The standard package of bacteria, pH and total dissolved solids is $60, or $70 with nitrate; bacteria alone is $40, nitrate $15 and lead $25. Drinking Water Testing, Penn State Agricultural Analytical Services Lab.
All 108 certified labs for PennsylvaniaWhich ZIP codes are in Unionville: 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: Pennsylvania DEP Laboratory Accreditation Program, accredited labs for drinking water; distances from the Census 2020 ZIP code tabulation area gazetteer.
What to do next
- Read PA American Water Co Butler’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for LeadRanked by certification and what they cost over five years.The best water filters for lead, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water