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MID-OHIO WSD PLAIN CITY WTP

PWS ID: OH4901112 · COLUMBUS, Ohio 43201

MID-OHIO WSD PLAIN CITY WTP serves 4,467 people in COLUMBUS, Ohio using Groundwater water sources. It has 174 recorded EPA violations, including 0 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: MID-OHIO WSD PLAIN CITY WTP

MID-OHIO WSD PLAIN CITY WTP is a local-owned community water system that delivers drinking water to 4,467 residents in COLUMBUS, Ohio (Madison County) through 1,865 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 174 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 168 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 7 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 27 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. MID-OHIO WSD PLAIN CITY WTP's 174 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
4,467
Total Violations
174
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,865
County
Madison
School/Daycare
No
MCL Violations
0
Monitoring Violations
168
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 7 2010
Barium MR 5 2003
Selenium MR 5 2003
Mercury MR 5 2003
Fluoride MR 5 2003
Cadmium MR 5 2003
Arsenic MR 5 2003
Chromium MR 5 2003
Thallium, Total MR 4 2003
CYANIDE MR 4 2003
Beryllium, Total MR 4 2003
CHLOROBENZENE MR 4 2003
1,2,4-Trichlorobenzene MR 4 2003
DICHLOROMETHANE MR 4 2003
1,2-Dichloroethane MR 4 2003
Tetrachloroethylene MR 4 2003
1,1-Dichloroethylene MR 4 2003
Toluene MR 4 2003
Styrene MR 4 2003
trans-1,2-Dichloroethylene MR 4 2003
p-Dichlorobenzene MR 4 2003
1,1,2-Trichloroethane MR 4 2003
TTHM MR 4 2013
Consumer Confidence Rule Other 4 2023
Trichloroethylene MR 4 2003
Vinyl chloride MR 4 2003
Nickel MR 4 2003
Xylenes, Total MR 4 2003
Revised Total Coliform Rule MON 4 2021
1,1,1-Trichloroethane MR 4 2003

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
4:2 FTS 7/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 7/23/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 7/23/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 7/23/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 7/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 7/23/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 7/23/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 7/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 7/23/2025 <9 µg/L 9 µg/L Not Detected
PFMPA 7/23/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 7/23/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 7/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 7/23/2025 <0.006 µg/L 0.006 µg/L Not Detected
6:2 FTS 7/23/2025 <0.005 µg/L 0.005 µg/L Not Detected
NEtFOSAA 7/23/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 7/23/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 7/23/2025 <0.008 µg/L 0.008 µg/L Not Detected
NFDHA 7/23/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 7/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 7/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 7/23/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 7/23/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 7/23/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 7/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 7/23/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 7/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 1/22/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 1/22/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 1/22/2025 <0.002 µg/L 0.002 µg/L Not Detected
9Cl-PF3ONS 1/22/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFDA 1/22/2025 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 1/22/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 1/22/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 1/22/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 1/22/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 1/22/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 1/22/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 1/22/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 1/22/2025 27.0000 µg/L 9 µg/L Detected
HFPO-DA 1/22/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 1/22/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 1/22/2025 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 1/22/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 1/22/2025 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 1/22/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 1/22/2025 <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 MID-OHIO WSD PLAIN CITY WTP.

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 OH4901112 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 MID-OHIO WSD PLAIN CITY WTP 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
2023 Consumer Confidence Rule Other 4 SDWIS / OH4901112 / 7000
2021 Revised Total Coliform Rule MON 4 SDWIS / OH4901112 / 8000
2013 TTHM MR 4 SDWIS / OH4901112 / 2950
2013 Total Haloacetic Acids (HAA5) MR 4 SDWIS / OH4901112 / 2456
2010 Coliform (TCR) MR 7 SDWIS / OH4901112 / 3100
2003 Barium MR 5 SDWIS / OH4901112 / 1010
2003 Selenium MR 5 SDWIS / OH4901112 / 1045
2003 Mercury MR 5 SDWIS / OH4901112 / 1035
2003 Fluoride MR 5 SDWIS / OH4901112 / 1025
2003 Cadmium MR 5 SDWIS / OH4901112 / 1015
2003 Arsenic MR 5 SDWIS / OH4901112 / 1005
2003 Chromium MR 5 SDWIS / OH4901112 / 1020
2003 Thallium, Total MR 4 SDWIS / OH4901112 / 1085
2003 CYANIDE MR 4 SDWIS / OH4901112 / 1024
2003 Beryllium, Total MR 4 SDWIS / OH4901112 / 1075

How MID-OHIO WSD PLAIN CITY WTP Compares

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

Metric MID-OHIO WSD PLAIN CITY WTP Ohio avg Federal benchmark
Total violations 174 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 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 4,467 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 MID-OHIO WSD PLAIN CITY WTP water safe to drink? ▼
MID-OHIO WSD PLAIN CITY WTP (PWS ID: OH4901112) has 174 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 4,467 people using Groundwater sources.
How many people does MID-OHIO WSD PLAIN CITY WTP serve? ▼
MID-OHIO WSD PLAIN CITY WTP serves 4,467 people in COLUMBUS, Ohio. It is a Local-owned system using Groundwater water sources with 1,865 service connections.
What type of violations does MID-OHIO WSD PLAIN CITY WTP have? ▼
MID-OHIO WSD PLAIN CITY WTP has 174 total violations: 0 health-based violations (MCL exceedances or treatment failures), 168 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in MID-OHIO WSD PLAIN CITY WTP water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in MID-OHIO WSD PLAIN CITY WTP's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does MID-OHIO WSD PLAIN CITY WTP use? ▼
MID-OHIO WSD PLAIN CITY WTP 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