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ST. CLAIRSVILLE, CITY OF PWS

PWS ID: OH0701516 · ST. CLAIRSVILLE, Ohio 43950

ST. CLAIRSVILLE, CITY OF PWS serves 5,097 people in ST. CLAIRSVILLE, Ohio using Surface Water water sources. It has 262 recorded EPA violations, including 110 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: ST. CLAIRSVILLE, CITY OF PWS

ST. CLAIRSVILLE, CITY OF PWS is a local-owned community water system that delivers drinking water to 5,097 residents in ST. CLAIRSVILLE, Ohio (Belmont County) through 2,423 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 262 total violations for this system , of which 110 (42%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 128 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 94 violations (TT, 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 0.0064 ppt. 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. ST. CLAIRSVILLE, CITY OF PWS's 262 violations sit above the Ohio average. Statewide, 204 of 346 UCMR5-tested systems have reported PFAS detections (59%). 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
5,097
Total Violations
262
Health-Based Violations
110
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2,423
County
Belmont
School/Daycare
No
MCL Violations
16
Monitoring Violations
128
Treatment Tech Violations
94

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 94 2019
Surface Water Treatment Rule MR 81 1995
Consumer Confidence Rule Other 13 2022
Coliform (TCR) MCL 12 1995
TTHM MR 12 2024
Revised Total Coliform Rule MON 11 2024
Total Haloacetic Acids (HAA5) MR 9 2021
E. COLI MR 4 2018
Public Notice Other 4 2023
Chlorine MR 4 2022
Total Haloacetic Acids (HAA5) MCL 4 2024
Nitrate MR 4 2001
Gross Beta Particle Activity MR 3 2002

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFDoA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 7/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 7/23/2024 <9 µg/L 9 µg/L Not Detected
NMeFOSAA 7/23/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 7/23/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 7/23/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFUnA 7/23/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFPeS 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 7/23/2024 0.0064 µg/L 0.004 µg/L Detected
PFNA 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/23/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 7/23/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 7/23/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 7/23/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 4/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 4/17/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 4/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 4/17/2024 <0.008 µg/L 0.008 µg/L Not Detected
lithium 4/17/2024 <9 µg/L 9 µg/L Not Detected
PFTrDA 4/17/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFUnA 4/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFEESA 4/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 4/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 4/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 4/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 4/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 4/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 4/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 4/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 4/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 4/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 4/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 4/17/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHxA 4/17/2024 <0.003 µg/L 0.003 µg/L 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 ST. CLAIRSVILLE, CITY OF 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 OH0701516 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 ST. CLAIRSVILLE, CITY OF 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
2024 TTHM MR 12 SDWIS / OH0701516 / 2950
2024 Revised Total Coliform Rule MON 11 SDWIS / OH0701516 / 8000
2024 Total Haloacetic Acids (HAA5) MCL 4 SDWIS / OH0701516 / 2456
2023 Public Notice Other 4 SDWIS / OH0701516 / 7500
2022 Consumer Confidence Rule Other 13 SDWIS / OH0701516 / 7000
2022 Chlorine MR 4 SDWIS / OH0701516 / 0999
2021 Total Haloacetic Acids (HAA5) MR 9 SDWIS / OH0701516 / 2456
2019 Surface Water Treatment Rule TT 94 SDWIS / OH0701516 / 0200
2018 E. COLI MR 4 SDWIS / OH0701516 / 3014
2002 Gross Beta Particle Activity MR 3 SDWIS / OH0701516 / 4100
2001 Nitrate MR 4 SDWIS / OH0701516 / 1040
1995 Surface Water Treatment Rule MR 81 SDWIS / OH0701516 / 0200
1995 Coliform (TCR) MCL 12 SDWIS / OH0701516 / 3100

How ST. CLAIRSVILLE, CITY OF PWS Compares

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

Metric ST. CLAIRSVILLE, CITY OF PWS Ohio avg Federal benchmark
Total violations 262 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 110 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 5,097 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is ST. CLAIRSVILLE, CITY OF PWS water safe to drink? ▼
ST. CLAIRSVILLE, CITY OF PWS (PWS ID: OH0701516) has 262 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 5,097 people using Surface Water sources.
How many people does ST. CLAIRSVILLE, CITY OF PWS serve? ▼
ST. CLAIRSVILLE, CITY OF PWS serves 5,097 people in ST. CLAIRSVILLE, Ohio. It is a Local-owned system using Surface Water water sources with 2,423 service connections.
What type of violations does ST. CLAIRSVILLE, CITY OF PWS have? ▼
ST. CLAIRSVILLE, CITY OF PWS has 262 total violations: 110 health-based violations (MCL exceedances or treatment failures), 128 monitoring/reporting violations, and 94 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ST. CLAIRSVILLE, CITY OF PWS water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in ST. CLAIRSVILLE, CITY OF PWS's water supply: PFOA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does ST. CLAIRSVILLE, CITY OF PWS use? ▼
ST. CLAIRSVILLE, CITY OF PWS 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.

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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.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial