PlainWater
States → Oklahoma

Community Water System · PWS OK3004814

McCurtain Co. RWD #2

Millerton, Oklahoma 74750 - drinking water served from surface water sources to 755 people, tracked in EPA SDWIS and UCMR5.

755
People served
263
EPA violations
174
Health-based
Untested
UCMR5 result

The verdict

EPA records 263 drinking-water violations at McCurtain Co. RWD #2, 66% of them health-based - below the Oklahoma per-system average.

263
Total EPA violations on record
66%
Health-based (MCL / treatment failure)
755
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: McCurtain Co. RWD #2

McCurtain Co. RWD #2 is a local-owned community water system that delivers drinking water to 755 residents in Millerton, Oklahoma (McCurtain County) through 286 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 263 total violations for this system , of which 174 (66%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 64 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 TTHM, recorded in 95 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 Oklahoma, EPA tracks 1,262 public water systems serving 3,699,452 people, with 336,706 cumulative violations and 113,804 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 266.8 violations. Statewide, 101 of 166 UCMR5-tested systems have reported PFAS detections (60.8%).

McCurtain Co. RWD #2's 263 violations sit below the Oklahoma 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
755
Total Violations
263
Health-Based Violations
174
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
286
County
McCurtain
School/Daycare
No
MCL Violations
173
Monitoring Violations
64
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 95 2023
Total Haloacetic Acids (HAA5) MCL 70 2024
Consumer Confidence Rule Other 24 2022
TTHM MR 22 2023
Total Haloacetic Acids (HAA5) MR 20 2023
Coliform (TCR) MR 14 2009
Coliform (TCR) MCL 8 2006
Revised Total Coliform Rule MON 4 2020
Chlorine MR 4 2020
LEAD AND COPPER RULE REVISIONS RPT 1 2024
LEAD AND COPPER RULE REVISIONS TT 1 2024

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 McCurtain Co. RWD #2.

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 OK3004814 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Oklahoma Drinking Water Authority

Oklahoma's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find OK regulator via EPA SDWIS

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 Total Haloacetic Acids (HAA5) MCL 70 SDWIS / OK3004814 / 2456
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / OK3004814 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / OK3004814 / 5200
2023 TTHM MCL 95 SDWIS / OK3004814 / 2950
2023 TTHM MR 22 SDWIS / OK3004814 / 2950
2023 Total Haloacetic Acids (HAA5) MR 20 SDWIS / OK3004814 / 2456
2022 Consumer Confidence Rule Other 24 SDWIS / OK3004814 / 7000
2020 Revised Total Coliform Rule MON 4 SDWIS / OK3004814 / 8000
2020 Chlorine MR 4 SDWIS / OK3004814 / 0999
2009 Coliform (TCR) MR 14 SDWIS / OK3004814 / 3100
2006 Coliform (TCR) MCL 8 SDWIS / OK3004814 / 3100

How McCurtain Co. RWD #2 Compares

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

Metric McCurtain Co. RWD #2 Oklahoma avg Federal benchmark
Total violations 263 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 174 90.2 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 755 2,931 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,262 regulated public water systems in Oklahoma.

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 McCurtain Co. RWD #2 water safe to drink? ▼
McCurtain Co. RWD #2 (PWS ID: OK3004814) has 263 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 755 people using Surface Water sources.
How many people does McCurtain Co. RWD #2 serve? ▼
McCurtain Co. RWD #2 serves 755 people in Millerton, Oklahoma. It is a Local-owned system using Surface Water water sources with 286 service connections.
What type of violations does McCurtain Co. RWD #2 have? ▼
McCurtain Co. RWD #2 has 263 total violations: 174 health-based violations (MCL exceedances or treatment failures), 64 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in McCurtain Co. RWD #2 water? ▼
No PFAS testing data is available for McCurtain Co. RWD #2 under the EPA's UCMR5 monitoring program.
What water source does McCurtain Co. RWD #2 use? ▼
McCurtain Co. RWD #2 uses Surface Water 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.