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Community Water System · PWS OH0400411

Conneaut

Conneaut, Ohio 44030 - drinking water served from surface water sources to 12,538 people, tracked in EPA SDWIS and UCMR5.

12,538
People served
48
EPA violations
23
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 48 drinking-water violations at Conneaut, 48% of them health-based - below the Ohio per-system average.

48
Total EPA violations on record
48%
Health-based (MCL / treatment failure)
12,538
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Conneaut

Conneaut is a local-owned community water system that delivers drinking water to 12,538 residents in Conneaut, Ohio (Ashtabula County) through 5,534 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 48 total violations for this system , of which 23 (48%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 11 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 23 violations (TT, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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%).

Conneaut's 48 violations sit below 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.

Population Served
12,538
Total Violations
48
Health-Based Violations
23
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
5,534
County
Ashtabula
School/Daycare
No
MCL Violations
0
Monitoring Violations
11
Treatment Tech Violations
23

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 23 2016
Interim Enhanced Surface Water Treatment Rule MR 3 2022
Consumer Confidence Rule Other 2 2003
Arsenic MR 1 1985
Cadmium MR 1 1985
Chromium MR 1 1985
Fluoride MR 1 1985
Nitrate MR 1 1985
Selenium MR 1 1985
Barium MR 1 1985
Mercury MR 1 1985

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
9Cl-PF3ONS 7/2/2025 <2.00 ppt 2.00 ppt Not Detected
PFTrDA 7/2/2025 <7.00 ppt 7.00 ppt Not Detected
PFTA 7/2/2025 <8.00 ppt 8.00 ppt Not Detected
PFHxA 7/2/2025 <3.00 ppt 3.00 ppt Not Detected
PFBS 7/2/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 7/2/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxS 7/2/2025 <3.00 ppt 3.00 ppt Not Detected
PFNA 7/2/2025 <4.00 ppt 4.00 ppt Not Detected
PFOS 7/2/2025 <4.00 ppt 4.00 ppt Not Detected
PFOA 7/2/2025 <4.00 ppt 4.00 ppt Not Detected
PFDA 7/2/2025 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 7/2/2025 <5.00 ppt 5.00 ppt Not Detected
11Cl-PF3OUdS 7/2/2025 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 7/2/2025 <6.00 ppt 6.00 ppt Not Detected
ADONA 7/2/2025 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 7/2/2025 <5.00 ppt 5.00 ppt Not Detected
PFBA 7/2/2025 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 7/2/2025 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 7/2/2025 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 7/2/2025 <5.00 ppt 5.00 ppt Not Detected
PFMPA 7/2/2025 <4.00 ppt 4.00 ppt Not Detected
PFPeA 7/2/2025 <3.00 ppt 3.00 ppt Not Detected
PFMBA 7/2/2025 <3.00 ppt 3.00 ppt Not Detected
PFEESA 7/2/2025 <3.00 ppt 3.00 ppt Not Detected
NFDHA 7/2/2025 <20.00 ppt 20.00 ppt Not Detected
PFPeS 7/2/2025 <4.00 ppt 4.00 ppt Not Detected
PFHpS 7/2/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 7/2/2025 <3.00 ppt 3.00 ppt Not Detected
PFUnA 7/2/2025 <2.00 ppt 2.00 ppt Not Detected
PFBS 4/7/2025 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 4/7/2025 <5.00 ppt 5.00 ppt Not Detected
PFBA 4/7/2025 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 4/7/2025 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 4/7/2025 <2.00 ppt 2.00 ppt Not Detected
PFUnA 4/7/2025 <2.00 ppt 2.00 ppt Not Detected
PFHxA 4/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 4/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFDA 4/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFOA 4/7/2025 <4.00 ppt 4.00 ppt Not Detected
PFOS 4/7/2025 <4.00 ppt 4.00 ppt Not Detected
PFNA 4/7/2025 <4.00 ppt 4.00 ppt Not Detected
4:2 FTS 4/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 4/7/2025 <3.00 ppt 3.00 ppt Not Detected
ADONA 4/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpS 4/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFPeS 4/7/2025 <4.00 ppt 4.00 ppt Not Detected
NMeFOSAA 4/7/2025 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 4/7/2025 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 4/7/2025 <7.00 ppt 7.00 ppt Not Detected
PFTA 4/7/2025 <8.00 ppt 8.00 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 Conneaut.

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 OH0400411 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 Conneaut 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
2022 Interim Enhanced Surface Water Treatment Rule MR 3 SDWIS / OH0400411 / 0300
2016 Surface Water Treatment Rule TT 23 SDWIS / OH0400411 / 0200
2003 Consumer Confidence Rule Other 2 SDWIS / OH0400411 / 7000
1985 Arsenic MR 1 SDWIS / OH0400411 / 1005
1985 Cadmium MR 1 SDWIS / OH0400411 / 1015
1985 Chromium MR 1 SDWIS / OH0400411 / 1020
1985 Fluoride MR 1 SDWIS / OH0400411 / 1025
1985 Nitrate MR 1 SDWIS / OH0400411 / 1040
1985 Selenium MR 1 SDWIS / OH0400411 / 1045
1985 Barium MR 1 SDWIS / OH0400411 / 1010
1985 Mercury MR 1 SDWIS / OH0400411 / 1035

How Conneaut Compares

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

Metric Conneaut Ohio avg Federal benchmark
Total violations 48 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 23 12.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 59% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 12,538 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 Conneaut water safe to drink?
Conneaut (PWS ID: OH0400411) has 48 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 12,538 people using Surface Water sources.
How many people does Conneaut serve?
Conneaut serves 12,538 people in Conneaut, Ohio. It is a Local-owned system using Surface Water water sources with 5,534 service connections.
What type of violations does Conneaut have?
Conneaut has 48 total violations: 23 health-based violations (MCL exceedances or treatment failures), 11 monitoring/reporting violations, and 23 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Conneaut water?
No. Conneaut was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Conneaut use?
Conneaut uses Surface Water 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.