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HAMLER VILLAGE

PWS ID: OH3500312 · HAMLER, Ohio 43524

HAMLER VILLAGE serves 580 people in HAMLER, Ohio using Groundwater water sources. It has 380 recorded EPA violations, including 90 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: HAMLER VILLAGE

HAMLER VILLAGE is a local-owned community water system that delivers drinking water to 580 residents in HAMLER, Ohio (Henry County) through 280 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 380 total violations for this system , of which 90 (24%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 266 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is TTHM, recorded in 66 violations (MCL, health-based). 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. HAMLER VILLAGE's 380 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
580
Total Violations
380
Health-Based Violations
90
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
280
County
Henry
School/Daycare
No
MCL Violations
66
Monitoring Violations
266
Treatment Tech Violations
24

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 66 2025
Lead and Copper Rule TT 24 2025
Lead and Copper Rule MR 16 2022
Consumer Confidence Rule Other 13 2024
Endrin MR 8 1994
Toxaphene MR 8 1994
Methoxychlor MR 8 1994
2,4,5-TP MR 8 1994
Total Haloacetic Acids (HAA5) MR 8 2010
TTHM MR 8 2010
BHC-GAMMA MR 8 1994
2,4-D MR 8 1994
Diquat MR 4 1994
Endothall MR 4 1994
Glyphosate MR 4 1994
Di(2-ethylhexyl) adipate MR 4 1994
Dinoseb MR 4 1994
Hexachlorocyclopentadiene MR 4 1994
Atrazine MR 4 1994
LASSO MR 4 1994
Benzo(a)pyrene MR 4 1994
Total Polychlorinated Biphenyls (PCB) MR 4 1994
1,2,4-Trichlorobenzene MR 4 2021
cis-1,2-Dichloroethylene MR 4 2021
p-Dichlorobenzene MR 4 2021
Vinyl chloride MR 4 2021
1,1-Dichloroethylene MR 4 2021
1,2-Dichloroethane MR 4 2021
1,1,1-Trichloroethane MR 4 2021
Trichloroethylene MR 4 2021

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 HAMLER VILLAGE.

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 OH3500312 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 HAMLER VILLAGE 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
2025 TTHM MCL 66 SDWIS / OH3500312 / 2950
2025 Lead and Copper Rule TT 24 SDWIS / OH3500312 / 5000
2024 Consumer Confidence Rule Other 13 SDWIS / OH3500312 / 7000
2022 Lead and Copper Rule MR 16 SDWIS / OH3500312 / 5000
2022 Revised Total Coliform Rule MON 4 SDWIS / OH3500312 / 8000
2021 1,2,4-Trichlorobenzene MR 4 SDWIS / OH3500312 / 2378
2021 cis-1,2-Dichloroethylene MR 4 SDWIS / OH3500312 / 2380
2021 p-Dichlorobenzene MR 4 SDWIS / OH3500312 / 2969
2021 Vinyl chloride MR 4 SDWIS / OH3500312 / 2976
2021 1,1-Dichloroethylene MR 4 SDWIS / OH3500312 / 2977
2021 1,2-Dichloroethane MR 4 SDWIS / OH3500312 / 2980
2021 1,1,1-Trichloroethane MR 4 SDWIS / OH3500312 / 2981
2021 Trichloroethylene MR 4 SDWIS / OH3500312 / 2984
2021 Tetrachloroethylene MR 4 SDWIS / OH3500312 / 2987
2021 CHLOROBENZENE MR 4 SDWIS / OH3500312 / 2989

How HAMLER VILLAGE Compares

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

Metric HAMLER VILLAGE Ohio avg Federal benchmark
Total violations 380 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 90 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 580 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 HAMLER VILLAGE water safe to drink? ▼
HAMLER VILLAGE (PWS ID: OH3500312) has 380 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 580 people using Groundwater sources.
How many people does HAMLER VILLAGE serve? ▼
HAMLER VILLAGE serves 580 people in HAMLER, Ohio. It is a Local-owned system using Groundwater water sources with 280 service connections.
What type of violations does HAMLER VILLAGE have? ▼
HAMLER VILLAGE has 380 total violations: 90 health-based violations (MCL exceedances or treatment failures), 266 monitoring/reporting violations, and 24 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in HAMLER VILLAGE water? ▼
No PFAS testing data is available for HAMLER VILLAGE under the EPA's UCMR5 monitoring program.
What water source does HAMLER VILLAGE use? ▼
HAMLER VILLAGE 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. This data is provided for informational purposes only.

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

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