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Community Water System · PWS OH0501311

Burr Oak Regional Water District

Millfield, Ohio 45761 - drinking water served from groundwater sources to 1,994 people, tracked in EPA SDWIS and UCMR5.

1,994
People served
113
EPA violations
103
Health-based
Untested
UCMR5 result

The verdict

EPA records 113 drinking-water violations at Burr Oak Regional Water District, 91% of them health-based - above the Ohio per-system average.

113
Total EPA violations on record
91%
Health-based (MCL / treatment failure)
1,994
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Burr Oak Regional Water District

Burr Oak Regional Water District is a private-owned community water system that delivers drinking water to 1,994 residents in Millfield, Ohio (Athens County) through 831 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 113 total violations for this system , of which 103 (91%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 7 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 74 violations (TT, 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. Statewide, 204 of 346 UCMR5-tested systems have reported PFAS detections (59%).

Burr Oak Regional Water District's 113 violations sit above the Ohio average.

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
1,994
Total Violations
113
Health-Based Violations
103
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
831
County
Athens
School/Daycare
No
MCL Violations
7
Monitoring Violations
7
Treatment Tech Violations
96

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 74 1996
CARBON, TOTAL TT 22 2005
Coliform (TCR) MCL 7 2000
Coliform (TCR) MR 7 2000
Consumer Confidence Rule Other 1 2020

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 Burr Oak Regional Water District.

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 OH0501311 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 Burr Oak Regional Water District 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
2020 Consumer Confidence Rule Other 1 SDWIS / OH0501311 / 7000
2005 CARBON, TOTAL TT 22 SDWIS / OH0501311 / 2920
2000 Coliform (TCR) MCL 7 SDWIS / OH0501311 / 3100
2000 Coliform (TCR) MR 7 SDWIS / OH0501311 / 3100
1996 Surface Water Treatment Rule TT 74 SDWIS / OH0501311 / 0200

How Burr Oak Regional Water District Compares

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

Metric Burr Oak Regional Water District Ohio avg Federal benchmark
Total violations 113 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 103 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 1,994 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Burr Oak Regional Water District water safe to drink? ▼
Burr Oak Regional Water District (PWS ID: OH0501311) has 113 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,994 people using Groundwater sources.
How many people does Burr Oak Regional Water District serve? ▼
Burr Oak Regional Water District serves 1,994 people in Millfield, Ohio. It is a Private-owned system using Groundwater water sources with 831 service connections.
What type of violations does Burr Oak Regional Water District have? ▼
Burr Oak Regional Water District has 113 total violations: 103 health-based violations (MCL exceedances or treatment failures), 7 monitoring/reporting violations, and 96 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Burr Oak Regional Water District water? ▼
No PFAS testing data is available for Burr Oak Regional Water District under the EPA's UCMR5 monitoring program.
What water source does Burr Oak Regional Water District use? ▼
Burr Oak Regional Water District 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.
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.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.