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Community Water System · PWS OH4600112

Bellefontaine City PWS

Bellefontaine, Ohio 43311 - drinking water served from groundwater sources to 13,249 people, tracked in EPA SDWIS and UCMR5.

13,249
People served
345
EPA violations
25
Health-based
1 PFAS
UCMR5 result

The verdict

EPA records 345 drinking-water violations at Bellefontaine City PWS, 7% of them health-based - above the Ohio per-system average, and UCMR5 testing detected 1 PFAS compound.

345
Total EPA violations on record
7%
Health-based (MCL / treatment failure)
13,249
People served by this system
1
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Bellefontaine City PWS

Bellefontaine City PWS is a local-owned community water system that delivers drinking water to 13,249 residents in Bellefontaine, Ohio (Logan County) through 6,252 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 345 total violations for this system , of which 25 (7%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 315 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 25 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 3.3 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Ohio, EPA tracks 4,181 public water systems serving 11,085,226 people, with 288,388 cumulative violations and 52,412 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 69 violations. Statewide, 204 of 346 UCMR5-tested systems have reported PFAS detections (59%).

Bellefontaine City PWS's 345 violations sit above the Ohio average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
13,249
Total Violations
345
Health-Based Violations
25
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
6,252
County
Logan
School/Daycare
No
MCL Violations
25
Monitoring Violations
315
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 25 1992
1,1,1-Trichloroethane MR 12 2002
1,2-Dichloropropane MR 12 2002
CHLOROBENZENE MR 12 2002
1,2,4-Trichlorobenzene MR 12 2002
Vinyl chloride MR 12 2002
1,2-Dichloroethane MR 12 2002
Tetrachloroethylene MR 12 2002
Ethylbenzene MR 12 2002
1,1-Dichloroethylene MR 12 2002
Carbon tetrachloride MR 12 2002
Styrene MR 12 2002
p-Dichlorobenzene MR 12 2002
Benzene MR 12 2002
Trichloroethylene MR 12 2002
Toluene MR 12 2002
trans-1,2-Dichloroethylene MR 12 2002
o-Dichlorobenzene MR 12 2002
1,1,2-Trichloroethane MR 12 2002
Xylenes, Total MR 12 2002
cis-1,2-Dichloroethylene MR 12 2002
DICHLOROMETHANE MR 12 2002
Chromium MR 8 2003
Nitrate MR 4 1998
Total Haloacetic Acids (HAA5) MR 4 2004
Mercury MR 4 2000
Beryllium, Total MR 4 2000
Arsenic MR 4 2000
Consumer Confidence Rule Other 4 2025
E. COLI MR 4 2020

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 58 samples detected PFAS.

Contaminant Date Result MRL Status
PFUnA 9/11/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 9/11/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 9/11/2024 <2.00 ppt 2.00 ppt Not Detected
HFPO-DA 9/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFNA 9/11/2024 <4.00 ppt 4.00 ppt Not Detected
ADONA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFBA 9/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFOS 9/11/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 9/11/2024 3.30 ppt 3.00 ppt Detected
PFOA 9/11/2024 <4.00 ppt 4.00 ppt Not Detected
PFDA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 9/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFHpS 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 9/11/2024 <20.00 ppt 20.00 ppt Not Detected
PFEESA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeA 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFMPA 9/11/2024 <4.00 ppt 4.00 ppt Not Detected
PFPeS 9/11/2024 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 9/11/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 9/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFTA 7/16/2024 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 7/16/2024 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 7/16/2024 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 7/16/2024 <6.00 ppt 6.00 ppt Not Detected
PFHpA 1/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFUnA 1/11/2024 <2.00 ppt 2.00 ppt Not Detected
PFEESA 1/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 1/11/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 1/11/2024 <20.00 ppt 20.00 ppt Not Detected
PFPeA 1/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpS 1/11/2024 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 1/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFDoA 1/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 1/11/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 1/11/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxS 1/11/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 1/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFBS 1/11/2024 3.10 ppt 3.00 ppt Detected
PFHxA 1/11/2024 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 1/11/2024 <2.00 ppt 2.00 ppt Not Detected
PFNA 1/11/2024 <4.00 ppt 4.00 ppt Not Detected
NMeFOSAA 1/11/2024 <6.00 ppt 6.00 ppt Not Detected
HFPO-DA 1/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 1/11/2024 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 1/11/2024 <5.00 ppt 5.00 ppt Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Bellefontaine City PWS.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID OH4600112 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Ohio Drinking Water Authority

Ohio EPA, Division of Drinking and Ground Waters is the primacy agency that licenses and inspects Bellefontaine City PWS under EPA-delegated authority.

Open OH regulator portal

Source: Ohio EPA, Division of Drinking and Ground Waters

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Consumer Confidence Rule Other 4 SDWIS / OH4600112 / 7000
2020 E. COLI MR 4 SDWIS / OH4600112 / 3014
2015 Coliform (TCR) MR 3 SDWIS / OH4600112 / 3100
2004 Total Haloacetic Acids (HAA5) MR 4 SDWIS / OH4600112 / 2456
2003 Chromium MR 8 SDWIS / OH4600112 / 1020
2002 1,1,1-Trichloroethane MR 12 SDWIS / OH4600112 / 2981
2002 1,2-Dichloropropane MR 12 SDWIS / OH4600112 / 2983
2002 CHLOROBENZENE MR 12 SDWIS / OH4600112 / 2989
2002 1,2,4-Trichlorobenzene MR 12 SDWIS / OH4600112 / 2378
2002 Vinyl chloride MR 12 SDWIS / OH4600112 / 2976
2002 1,2-Dichloroethane MR 12 SDWIS / OH4600112 / 2980
2002 Tetrachloroethylene MR 12 SDWIS / OH4600112 / 2987
2002 Ethylbenzene MR 12 SDWIS / OH4600112 / 2992
2002 1,1-Dichloroethylene MR 12 SDWIS / OH4600112 / 2977
2002 Carbon tetrachloride MR 12 SDWIS / OH4600112 / 2982

How Bellefontaine City PWS Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Bellefontaine City PWS Ohio avg Federal benchmark
Total violations 345 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 25 12.5 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 59% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 13,249 2,651 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 4,181 regulated public water systems in Ohio.

Federal MCL reference, Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Bellefontaine City PWS water safe to drink?
Bellefontaine City PWS (PWS ID: OH4600112) has 345 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 13,249 people using Groundwater sources.
How many people does Bellefontaine City PWS serve?
Bellefontaine City PWS serves 13,249 people in Bellefontaine, Ohio. It is a Local-owned system using Groundwater water sources with 6,252 service connections.
What type of violations does Bellefontaine City PWS have?
Bellefontaine City PWS has 345 total violations: 25 health-based violations (MCL exceedances or treatment failures), 315 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Bellefontaine City PWS water?
Yes. UCMR5 testing detected 1 PFAS compound in Bellefontaine City PWS's water supply: PFBS. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Bellefontaine City PWS use?
Bellefontaine City PWS uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.