Is Jefferson, OH tap water safe?
The short answer
1 of the 2 utilities serving Jefferson has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Ohio’s records: Ashtabula County Water System.
Aqua Ohio - Village of Jefferson, which serves the most people here, has nothing above a health goal in EPA’s and Ohio’s records. That data covers what its report lists, not everything.
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 Jefferson’s ZIP codes, from EPA’s estimates.
- Open report
Aqua Ohio - Village of Jefferson
Ohio · serves 3,226 people · under 100 in Jefferson
Nothing in its records is above a health goal.
No health-based violations since 2016
- Open report
Ashtabula County Water System
Ohio · serves 14,757 people · based in Jefferson
1 result above the legal limit. The worst: Total trihalomethanes (TTHM) at 59.7 ppb, above the legal limit.
1 health-based violation since 2016
Water testing near Jefferson
The 3 labs Ohio certifies closest to Jefferson, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Geauga County Department of Water Resources
Chardon, OH · about 26 miles
Certified for bacteria, nitrate, minerals and other inorganics
Biosolutions, LLC
Chagrin Falls, OH · about 37 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Cardinal Environmental Lab, LLC
Youngstown, OH · about 43 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts
ZIP codes in Jefferson
Which ZIP codes are in Jefferson: 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 Jefferson
Other towns in Ashtabula County with a page of their own.
What to do next
- Read Aqua Ohio - Village of Jefferson’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Decide if you want a filter at allA filter for taste or chlorine is a preference, not a need. The standards say what each kind can do.NSF/ANSI standards, decoded
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water