PlainWater
States → Ohio

THORNVILLE, VILLAGE OF

PWS ID: OH6401212 · THORNVILLE, Ohio 43076

THORNVILLE, VILLAGE OF serves 991 people in THORNVILLE, Ohio using Groundwater water sources. It has 196 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: THORNVILLE, VILLAGE OF

THORNVILLE, VILLAGE OF is a local-owned community water system that delivers drinking water to 991 residents in THORNVILLE, Ohio (Perry County) through 488 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 196 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 185 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 Nitrate, recorded in 7 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

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. THORNVILLE, VILLAGE OF's 196 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.

Population Served
991
Total Violations
196
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
488
County
Perry
School/Daycare
No
MCL Violations
0
Monitoring Violations
185
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 7 1997
1,1,1-Trichloroethane MR 6 2001
1,2-Dichloropropane MR 6 2001
Benzene MR 6 2001
1,2,4-Trichlorobenzene MR 6 2001
DICHLOROMETHANE MR 6 2001
1,2-Dichloroethane MR 6 2001
Tetrachloroethylene MR 6 2001
1,1-Dichloroethylene MR 6 2001
Carbon tetrachloride MR 6 2001
Toluene MR 6 2001
Styrene MR 6 2001
trans-1,2-Dichloroethylene MR 6 2001
1,1,2-Trichloroethane MR 6 2001
cis-1,2-Dichloroethylene MR 6 2001
Xylenes, Total MR 6 2001
CHLOROBENZENE MR 6 2001
Vinyl chloride MR 6 2001
Ethylbenzene MR 6 2001
o-Dichlorobenzene MR 6 2001
p-Dichlorobenzene MR 6 2001
Trichloroethylene MR 6 2001
LASSO MR 4 1996
Consumer Confidence Rule Other 4 2024
Simazine MR 4 1996
Atrazine MR 4 1996
2,4,5-TP MR 3 1992
Cadmium MR 3 1986
Fluoride MR 3 1986
Selenium MR 3 1986

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 THORNVILLE, VILLAGE OF.

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 OH6401212 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 THORNVILLE, VILLAGE OF 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 Consumer Confidence Rule Other 4 SDWIS / OH6401212 / 7000
2001 1,1,1-Trichloroethane MR 6 SDWIS / OH6401212 / 2981
2001 1,2-Dichloropropane MR 6 SDWIS / OH6401212 / 2983
2001 Benzene MR 6 SDWIS / OH6401212 / 2990
2001 1,2,4-Trichlorobenzene MR 6 SDWIS / OH6401212 / 2378
2001 DICHLOROMETHANE MR 6 SDWIS / OH6401212 / 2964
2001 1,2-Dichloroethane MR 6 SDWIS / OH6401212 / 2980
2001 Tetrachloroethylene MR 6 SDWIS / OH6401212 / 2987
2001 1,1-Dichloroethylene MR 6 SDWIS / OH6401212 / 2977
2001 Carbon tetrachloride MR 6 SDWIS / OH6401212 / 2982
2001 Toluene MR 6 SDWIS / OH6401212 / 2991
2001 Styrene MR 6 SDWIS / OH6401212 / 2996
2001 trans-1,2-Dichloroethylene MR 6 SDWIS / OH6401212 / 2979
2001 1,1,2-Trichloroethane MR 6 SDWIS / OH6401212 / 2985
2001 cis-1,2-Dichloroethylene MR 6 SDWIS / OH6401212 / 2380

How THORNVILLE, VILLAGE OF Compares

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

Metric THORNVILLE, VILLAGE OF Ohio avg Federal benchmark
Total violations 196 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 None 59% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 991 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 THORNVILLE, VILLAGE OF water safe to drink? ▼
THORNVILLE, VILLAGE OF (PWS ID: OH6401212) has 196 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 991 people using Groundwater sources.
How many people does THORNVILLE, VILLAGE OF serve? ▼
THORNVILLE, VILLAGE OF serves 991 people in THORNVILLE, Ohio. It is a Local-owned system using Groundwater water sources with 488 service connections.
What type of violations does THORNVILLE, VILLAGE OF have? ▼
THORNVILLE, VILLAGE OF has 196 total violations: 0 health-based violations (MCL exceedances or treatment failures), 185 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in THORNVILLE, VILLAGE OF water? ▼
No PFAS testing data is available for THORNVILLE, VILLAGE OF under the EPA's UCMR5 monitoring program.
What water source does THORNVILLE, VILLAGE OF use? ▼
THORNVILLE, VILLAGE OF 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.

Explore PlainWater

Water in Ohio

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Ohio

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

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

Related

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