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CIRCLEVILLE CITY PWS

PWS ID: OH6500412 · CIRCLEVILLE, Ohio 43113

CIRCLEVILLE CITY PWS serves 13,927 people in CIRCLEVILLE, Ohio using Groundwater water sources. It has 36 recorded EPA violations, including 17 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: CIRCLEVILLE CITY PWS

CIRCLEVILLE CITY PWS is a local-owned community water system that delivers drinking water to 13,927 residents in CIRCLEVILLE, Ohio (Pickaway County) through 5,292 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 36 total violations for this system , of which 17 (47%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 12 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 17 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 10.9 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. CIRCLEVILLE CITY PWS's 36 violations sit below 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
13,927
Total Violations
36
Health-Based Violations
17
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
5,292
County
Pickaway
School/Daycare
No
MCL Violations
17
Monitoring Violations
12
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 17 2015
Coliform (TCR) MR 4 2015
TTHM MR 3 2013
Total Haloacetic Acids (HAA5) MR 3 2013
Consumer Confidence Rule Other 2 2012
Lead and Copper Rule MR 1 2009
Gross Alpha, Excl. Radon and U MR 1 1986

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
8:2 FTS 9/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 9/7/2023 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 9/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
11Cl-PF3OUdS 9/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 9/7/2023 <0.02 µg/L 0.02 µg/L Not Detected
NEtFOSAA 9/7/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 9/7/2023 10.9000 µg/L 9 µg/L Detected
PFUnA 9/7/2023 <0.002 µg/L 0.002 µg/L Not Detected
PFTrDA 9/7/2023 <0.007 µg/L 0.007 µg/L Not Detected
NMeFOSAA 9/7/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFBS 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 9/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/7/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/7/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFHxA 9/7/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 3/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 3/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 3/12/2024 <0.002 µg/L 0.002 µg/L Not Detected
6:2 FTS 3/12/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 3/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 3/12/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 3/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 3/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 3/12/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFPeS 3/12/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 3/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 3/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 3/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 3/12/2024 <0.02 µg/L 0.02 µg/L Not Detected
NMeFOSAA 3/12/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFBA 3/12/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 3/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 3/12/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 3/12/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFTA 3/12/2024 <0.008 µg/L 0.008 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 CIRCLEVILLE 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 OH6500412 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 CIRCLEVILLE 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
2015 Coliform (TCR) MCL 17 SDWIS / OH6500412 / 3100
2015 Coliform (TCR) MR 4 SDWIS / OH6500412 / 3100
2013 TTHM MR 3 SDWIS / OH6500412 / 2950
2013 Total Haloacetic Acids (HAA5) MR 3 SDWIS / OH6500412 / 2456
2012 Consumer Confidence Rule Other 2 SDWIS / OH6500412 / 7000
2009 Lead and Copper Rule MR 1 SDWIS / OH6500412 / 5000
1986 Gross Alpha, Excl. Radon and U MR 1 SDWIS / OH6500412 / 4000

How CIRCLEVILLE CITY PWS Compares

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

Metric CIRCLEVILLE CITY PWS Ohio avg Federal benchmark
Total violations 36 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 17 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 13,927 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 CIRCLEVILLE CITY PWS water safe to drink? ▼
CIRCLEVILLE CITY PWS (PWS ID: OH6500412) has 36 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 13,927 people using Groundwater sources.
How many people does CIRCLEVILLE CITY PWS serve? ▼
CIRCLEVILLE CITY PWS serves 13,927 people in CIRCLEVILLE, Ohio. It is a Local-owned system using Groundwater water sources with 5,292 service connections.
What type of violations does CIRCLEVILLE CITY PWS have? ▼
CIRCLEVILLE CITY PWS has 36 total violations: 17 health-based violations (MCL exceedances or treatment failures), 12 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CIRCLEVILLE CITY PWS water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in CIRCLEVILLE CITY PWS's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does CIRCLEVILLE CITY PWS use? ▼
CIRCLEVILLE 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.

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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