Water system
Kenton City
EPA ID OH3300612 · Hardin County · 8,360 people served · owned by a local government
Kenton City treats its own water from Scioto River valley aquifer (local wells, low confidence).
The system's record
- Water bodies
- Scioto River
- Active wells
- 7
- Serves
- 8,360 people · Hardin County
- EPA ID
- OH3300612
Kenton sits directly on the Scioto River headwaters, so its 7 wells plausibly tap a Scioto River valley sand-and-gravel aquifer, but the city's CCR/well-field location could not be confirmed in available sources; kept as SDWIS 'local wells' hypothesis with low confidence.
About this area's water

Did you know
- Kenton sits on the headwaters of the Scioto River, but its water does not come from the river valley at all - all seven city wells draw on the carbonate limestone aquifer of northwest Ohio.
- Kenton's own 2025 water quality report lists CCR content violations in four separate years - 2018, 2020, 2023 and 2024 - including a 2024 report in which the fluoride number was wrong and barium and cyanide were left…
- The city's report states plainly that Kenton 'currently has no program in place' to act on its Ohio EPA source water assessment.
- Ohio EPA has ordered Kenton to submit, by September 1, 2026, a feasibility study on whether to build an entirely new treatment plant or hand its water over to a regional system.
- Rebuilding the water and sewer lines under downtown Kenton is estimated at $16-20 million in total; the $5 million state grant announced in 2023 covers a single phase.
History6
- 2018Kenton's 2018 CCR omitted gross alpha and radium-228 data from the table of detected contaminants (disclosed later as a past CCR content violation).
- 2020The 2020 CCR omitted gross alpha data and listed contaminants that had not been detected.
- 2023Ohio awards Kenton a $5 million Ohio BUILDS Water Infrastructure Grant (announced July 21, 2023) for Phase 2 of the Historic Courthouse District project - nine downtown blocks of water, storm and…
- 2023The 2023 CCR wrongly printed radium-228 at 2.7 pCi/L and gross alpha at 0.88 pCi/L (both were actually non-detects) and omitted unresolved significant deficiencies.
- 2024Ohio EPA informs Kenton on December 31, 2024 of a significant deficiency for failing to report the most recent gross alpha and radium-228 data on the 2023 CCR; the city corrects it in the 2024 CCR…
- 2024The 2024 CCR is itself found deficient: the fluoride figure was incorrect, barium and cyanide were left out, and unresolved significant deficiencies were not disclosed.
Treatment & pressure
How it is treated
Seven city wells draw on the carbonate aquifer of northwest Ohio - not a Scioto River valley sand-and-gravel aquifer, despite Kenton sitting on the Scioto headwaters. Water is treated at the city's groundwater plant with chlorination (2025 average total chlorine 0.758 ppm), fluoridation, and…
Source: cms2.revize.com
Water pressure
Not published. No distribution pressure figure, pressure-zone map or engineering summary appears in Kenton's 2024 or 2025 CCR, on the water department page, or anywhere else on…
Source: cms2.revize.comcityofkenton.com
What it costs
Not published. Kenton bills monthly - bills are mailed the last day of the month and due on the 15th, with a 10% penalty on the 16th - but neither the water department page nor…
Source: cityofkenton.comcityofkenton.com
Water quality & impurities10
| Contaminant | Level | Limit | Year |
|---|---|---|---|
| Total Chlorine (residual) Average; range 0.5-1.0. Water additive used to control microbes. | 0.758 ppm | 4 (MRDL) | 2025 |
| Total Phosphate Average; range 0.11-0.18. Treatment-process additive. | 0.15 ppm | none… | 2025 |
| Trihalomethanes (TTHM) Range 26.9-32.8. Down sharply from 55.4 ppb reported for 2024, and the lowest of the three systems in this batch. | 29.85 ppb | 80 | 2025 |
| Haloacetic Acids (HAA5) Range 5.6-6.9. | 6.25 ppb | 60 | 2025 |
| Fluoride The 2025 CCR states that the fluoride figure printed in the 2024 CCR (1.15 ppm, sampled 2021) was incorrect. | 1.07 ppm | 4 | 2024 |
| Barium Omitted from the 2024 CCR; added after Ohio EPA cited the omission. | 0.0039 ppm | 2 | 2024 |
| Cyanide Omitted from the 2024 CCR; added after Ohio EPA cited the omission. | 1.0 ppb | 200 | 2024 |
| Lead (90th percentile) 0 of 20 samples over the action level. The 2025 CCR prints the 90th-percentile value as 0.0007 ppb, which looks like a… | 0.0007 ppb | 15 (AL) | 2025 |
| Copper (90th percentile) 0 of 20 samples over the action level. | 0.003 ppm | 1.3 (AL) | 2025 |
| Nitrate From the 2024 CCR; not listed as detected in the 2025 report. | 0.39 ppm | 10 | 2024 |
Source: cms2.revize.comcms2.revize.com
EPA compliance record
Lead at the tap: 90th-percentile result 0.7 ppb in 2025 (action level 15 ppb).
EPA health-based violations since 2015:
- 2023Ground Water Rule · treatment technique violation · returned to compliance
6 violations of any kind logged since 2020, 5 of them paperwork (monitoring, reporting, public notice or consumer report).
Projects & plans6
Recent and current work
- Historic Courthouse District water/sewer/storm main replacement, Phase 2 · $5 million · 2023
Funded by a $5 million Ohio BUILDS Water Infrastructure Grant announced July 21, 2023, covering nine downtown blocks of water, storm and sanitary mains.…
Source: wktn.com
Planned or needed
- Feasibility study for a new water treatment plant or regionalization · 2026 · needed
Ohio EPA significant deficiency issued June 13, 2025; the completed plan is due September 1, 2026. No cost published. - Repairs and upgrades to the existing water treatment plant · 2026 · needed
Ohio EPA significant deficiency issued June 13, 2025; an updated repair timeline was due June 30, 2026. Scope and cost not published. - Water loss reduction: master-meter verification and GIS modeling · 2026 · under construction
Ohio EPA significant deficiency. A water audit was completed December 31, 2025; progress updates on metering verification and GIS modeling were due June 30… - Lead service line material inventory completion · 2026 · needed
Ohio EPA issued a 4H Inventory Notice monitoring/reporting warning on October 21, 2025 after the city missed a July 1, 2025 deadline; the city has posted… - Full downtown water and sewer replacement program (all phases) · 2019 · proposed
The Kenton Downtown Plan puts the total estimated cost of repairing the downtown's aging water and sewer lines at $16-20 million depending on final design; the…
Supply stress
Kenton's own CCR says its seven wells 'ensure an adequate supply of water for future needs and growth,' and Ohio EPA rates the carbonate aquifer's susceptibility to contamination as MODERATE, based on the presence of significant contaminant sources inside the protection area. The city states outright that it has no program in place to…
Source: cms2.revize.com
Sewers
Sanitary
The City of Kenton operates its own wastewater treatment plant, but publishes essentially nothing about it - the city's wastewater plant page is a 'coming soon' placeholder, and no design flow, peak capacity, treatment process, receiving stream or NPDES/consent-decree detail could be substantiated from any retrievable source. Phase 2 of…
Storm
Downtown storm sewer mains are being replaced alongside water and sanitary mains in the $5 million Ohio BUILDS-funded Historic Courthouse District project. No separate stormwater utility fee was identified.
Source: cityofkenton.comwktn.com
Sourcesverified
Compiled from the utility's own reports and public records, then independently re-checked against primary sources.
Main supplier in 1 ZIP code
Serves
Main water supplier in 1 ZIP code
- 43326 · Kenton59% of residents
Population-weighted resident shares; a ZIP code can have more than one system on record. Recomputed from each ZIP's own system list, not from the map's cached footprint.
Buys from · Sells to
Kenton City does not buy water from another system on record; it treats its own source water.
No other system is on record buying water from Kenton City.
Photograph
On the map
Show this system's territory on the map — 1 ZIP code in all.
Sources
U.S. EPA SDWIS and Community Water System Service Area Boundaries (v3, 2026), Ohio EPA primacy data, 2020 census blocks: the system serving most residents, traced through purchases to the treating utility; Ohio EPA 2023 Sewer and Water Rate Survey (Ohio State, May 2025) for household bills; Ohio EPA DEFA loan awards since 2016 for the loans paragraph · EPA SDWIS · EPA service area boundaries · Ohio EPA drinking water · Ohio EPA rate survey
Kenton City's own pages: cms2.revize.com
Notable facts: cms2.revize.com, kentondowntownplan.com, wktn.com
History: cms2.revize.com, cms2.revize.com, wktn.com
Water quality: cms2.revize.com, cms2.revize.com
Planned work: cms2.revize.com, kentondowntownplan.com
Water pressure: cms2.revize.com, cityofkenton.com
Capital projects: wktn.com
Rates: cityofkenton.com, cityofkenton.com
Sewers: cityofkenton.com, wktn.com
Treatment: cms2.revize.com
Supply stress: cms2.revize.com