Is Wauseon, OH tap water safe?
The short answer
2 of the 2 utilities serving Wauseon have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Ohio’s records: Wauseon City PWS and Northeast Water System.
Wauseon City PWS, which serves the most people here, has 1 result above the legal limit. The worst: Total trihalomethanes (TTHM) at 64.8 ppb, above the legal limit.
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 Wauseon’s ZIP codes, from EPA’s estimates.
- Open report
Wauseon City PWS
Ohio · serves 7,568 people · about 360 in Wauseon
1 result above the legal limit. The worst: Total trihalomethanes (TTHM) at 64.8 ppb, above the legal limit.
8 health-based violations since 2016
- Open report
Northeast Water System
Ohio · serves 1,250 people · under 100 in Wauseon
1 result above the legal limit. The worst: Total trihalomethanes (TTHM) at 75 ppb, above the legal limit.
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 Wauseon City PWS’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)
Brita Hub Countertop Water Filter System (87340)
Countertop
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
- IAPMO listing:NSF/ANSI 53checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM)
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)
Water testing near Wauseon
The 3 labs Ohio certifies closest to Wauseon, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Kleinfelder Water Technologies Laboratory
McClure, OH · about 20 miles
Certified for bacteria
Jones & Henry Laboratories
Northwood, OH · about 36 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
BoJhun Environmental Services
Fostoria, OH · about 49 miles
Certified for bacteria
ZIP codes in Wauseon
Which ZIP codes are in Wauseon: 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: Ohio EPA, laboratories certified/accepted to perform analyses on public drinking water; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Wauseon
Towns nearby with a page of their own.
What to do next
- Read Wauseon City PWS’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