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OAKRIDGE ESTATES

PWS ID: OH5100212 · DURHAM, Ohio 27703

OAKRIDGE ESTATES serves 230 people in DURHAM, Ohio using Groundwater water sources. It has 122 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: OAKRIDGE ESTATES

OAKRIDGE ESTATES is a private-owned community water system that delivers drinking water to 230 residents in DURHAM, Ohio (Marion County) through 111 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 122 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 103 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 1,2-DIBROMO-3-CHLOROPROPANE, recorded in 8 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. OAKRIDGE ESTATES's 122 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
230
Total Violations
122
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
111
County
Marion
School/Daycare
No
MCL Violations
0
Monitoring Violations
103
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
1,2-DIBROMO-3-CHLOROPROPANE MR 8 1994
ETHYLENE DIBROMIDE MR 8 1994
Lead and Copper Rule MR 7 1996
Nitrate MR 7 1994
Arsenic MR 6 1994
Cadmium MR 6 1994
Chromium MR 6 1994
Fluoride MR 6 1994
Selenium MR 6 1994
Mercury MR 6 1994
Barium MR 6 1994
Gross Alpha, Excl. Radon and U MR 5 1994
Coliform (TCR) MR 5 1991
Asbestos MR 3 1994
Nickel MR 3 1994
Thallium, Total MR 3 1994
Revised Total Coliform Rule MON 3 2025
Antimony, Total MR 3 1994
CYANIDE MR 3 1994
Beryllium, Total MR 3 1994
Consumer Confidence Rule Other 2 2002

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 OAKRIDGE ESTATES.

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 OH5100212 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 OAKRIDGE ESTATES 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 Revised Total Coliform Rule MON 3 SDWIS / OH5100212 / 8000
2002 Consumer Confidence Rule Other 2 SDWIS / OH5100212 / 7000
1996 Lead and Copper Rule MR 7 SDWIS / OH5100212 / 5000
1994 1,2-DIBROMO-3-CHLOROPROPANE MR 8 SDWIS / OH5100212 / 2931
1994 ETHYLENE DIBROMIDE MR 8 SDWIS / OH5100212 / 2946
1994 Nitrate MR 7 SDWIS / OH5100212 / 1040
1994 Arsenic MR 6 SDWIS / OH5100212 / 1005
1994 Cadmium MR 6 SDWIS / OH5100212 / 1015
1994 Chromium MR 6 SDWIS / OH5100212 / 1020
1994 Fluoride MR 6 SDWIS / OH5100212 / 1025
1994 Selenium MR 6 SDWIS / OH5100212 / 1045
1994 Mercury MR 6 SDWIS / OH5100212 / 1035
1994 Barium MR 6 SDWIS / OH5100212 / 1010
1994 Gross Alpha, Excl. Radon and U MR 5 SDWIS / OH5100212 / 4000
1994 Asbestos MR 3 SDWIS / OH5100212 / 1094

How OAKRIDGE ESTATES Compares

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

Metric OAKRIDGE ESTATES Ohio avg Federal benchmark
Total violations 122 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 230 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 OAKRIDGE ESTATES water safe to drink? ▼
OAKRIDGE ESTATES (PWS ID: OH5100212) has 122 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 230 people using Groundwater sources.
How many people does OAKRIDGE ESTATES serve? ▼
OAKRIDGE ESTATES serves 230 people in DURHAM, Ohio. It is a Private-owned system using Groundwater water sources with 111 service connections.
What type of violations does OAKRIDGE ESTATES have? ▼
OAKRIDGE ESTATES has 122 total violations: 0 health-based violations (MCL exceedances or treatment failures), 103 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in OAKRIDGE ESTATES water? ▼
No PFAS testing data is available for OAKRIDGE ESTATES under the EPA's UCMR5 monitoring program.
What water source does OAKRIDGE ESTATES use? ▼
OAKRIDGE ESTATES 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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