Is Audubon, PA tap water safe?
The short answer
3 of the 6 utilities serving Audubon have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Pennsylvania’s records: Phoenixville Water Dept, Aqua PA Main System and PA American Royersford.
PA American Norristown, which serves the most people here, has 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 16.2 ppb, above EPA’s health benchmark. 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 Audubon’s ZIP codes, from EPA’s estimates.
- Open report
PA American Norristown
Pennsylvania · serves 88,885 people · about 6,200 in Audubon
3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 16.2 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
PA American Audubon
Pennsylvania · serves 8,200 people · about 1,400 in Audubon
2 results above the limit’s level with no violation recorded, 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOS at 60.3 ppt, above the limit’s level, no violation.
No health-based violations since 2016
- Open report
Phoenixville Water Dept
Pennsylvania · serves 16,599 people · about 250 in Audubon
1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOA at 4.8 ppt, above EPA’s new limit, which takes effect in 2029.
1 health-based violation since 2016
- Open report
North Penn Water Authority
Pennsylvania · serves 91,941 people · about 190 in Audubon
2 results above EPA’s new limit, which takes effect in 2029, 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOA at 6.2 ppt, above EPA’s new limit, which takes effect in 2029.
No health-based violations since 2016
- Open report
Aqua PA Main System
Pennsylvania · serves 822,600 people · about 140 in Audubon
3 results above EPA’s new limit, which takes effect in 2029, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOA at 13 ppt, above EPA’s new limit, which takes effect in 2029.
2 health-based violations since 2016
- Open report
PA American Royersford
Pennsylvania · serves 49,508 people · about 130 in Audubon
2 results above EPA’s new limit, which takes effect in 2029, 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: PFOA at 15.4 ppt, above EPA’s new limit, which takes effect in 2029.
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 PA American Norristown’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: PFOA, PFOS, Lead
Aquasana Claryum Direct Connect (AQ-MF-1)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOA, PFOS, Lead
Express Water StreamLine Direct Connect System (USC001)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOA, PFOS, Lead
Water testing near Audubon
The 3 labs Pennsylvania certifies closest to Audubon, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Aqua Pennsylvania, Inc.
Bryn Mawr, PA · about 10 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS, radioactivity
Analytical Laboratories, Inc
Telford, PA · about 14 miles
Certified for bacteria, nitrate
Eurofins Philadelphia - Horsham
Horsham, PA · about 16 miles
Certified for bacteria
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 Audubon: 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.
Near Audubon
Other towns in Montgomery County with a page of their own.
What to do next
- Read PA American Norristown’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About LithiumWhat it does to health, where it comes from, and the certification claim that addresses it.About Lithium
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water