Is Monaca, PA tap water safe?
The short answer
3 of the 3 utilities serving Monaca have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Pennsylvania’s records: Center Twp Water Auth, Monaca Boro Water Dept and Mun Water Auth of Aliquippa.
Center Twp Water Auth, which serves the most people here, has 1 result above the limit’s level with no violation recorded and 2 results above the health goal. The worst: Total trihalomethanes (TTHM) at 86.7 ppb, above the limit’s level, no violation. 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 Monaca’s ZIP codes, from EPA’s estimates.
- Open report
Center Twp Water Auth
Pennsylvania · serves 19,000 people · about 750 in Monaca
1 result above the limit’s level with no violation recorded and 2 results above the health goal. The worst: Total trihalomethanes (TTHM) at 86.7 ppb, above the limit’s level, no violation.
3 health-based violations since 2016
- Open report
Monaca Boro Water Dept
Pennsylvania · serves 6,500 people · about 660 in Monaca
1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: PFOS at 4.8 ppt, above EPA’s new limit, which takes effect in 2029.
4 health-based violations since 2016
- Open report
Mun Water Auth of Aliquippa
Pennsylvania · serves 15,685 people · under 100 in Monaca
1 result above the action level and 3 results above the health goal. The worst: Lead at 33.5 ppb, above the action level.
3 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 Center Twp Water Auth’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Aquasana Clean Water Machine (AQ-CWM2)
Countertop
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM), PFOA, Lead
Ninja HydraSense Countertop Water Filtration System (WF1001)
Countertop
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM), PFOA, Lead
PUR PLUS Faucet Filtration System, Horizontal (PFM400H)
Faucet mount
- NSF listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: Total trihalomethanes (TTHM), PFOA, Lead
Water testing near Monaca
The 3 labs Pennsylvania certifies closest to Monaca, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Allegheny County Health Department Public Health Laboratory
Warrendale, PA · about 11 miles
Certified for bacteria
Microbac Laboratories, Inc. Pittsburgh Division
Warrendale, PA · about 11 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Eurofins Pittsburgh
Pittsburgh, PA · about 25 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 PennsylvaniaZIP codes in Monaca
Which ZIP codes are in Monaca: 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 Monaca
Other towns in Beaver County with a page of their own.
What to do next
- Read Center Twp Water Auth’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About Total trihalomethanes (TTHM)What it does to health, where it comes from, and the certification claim that addresses it.About Total trihalomethanes (TTHM)
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water