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Community Water System · PWS OK3000306

Atoka Co. RWD #2

Atoka, Oklahoma 74525 - drinking water served from surface water sources to 500 people, tracked in EPA SDWIS and UCMR5.

500
People served
153
EPA violations
139
Health-based
Untested
UCMR5 result

The verdict

EPA records 153 drinking-water violations at Atoka Co. RWD #2, 91% of them health-based - below the Oklahoma per-system average.

153
Total EPA violations on record
91%
Health-based (MCL / treatment failure)
500
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Atoka Co. RWD #2

Atoka Co. RWD #2 is a local-owned community water system that delivers drinking water to 500 residents in Atoka, Oklahoma (Atoka County) through 410 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 153 total violations for this system , of which 139 (91%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 12 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 121 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%).

Atoka Co. RWD #2's 153 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
500
Total Violations
153
Health-Based Violations
139
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
410
County
Atoka
School/Daycare
No
MCL Violations
137
Monitoring Violations
12
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 121 2025
Total Haloacetic Acids (HAA5) MCL 16 2025
TTHM MR 7 2025
Total Haloacetic Acids (HAA5) MR 5 2025
LEAD AND COPPER RULE REVISIONS TT 2 2024
LEAD AND COPPER RULE REVISIONS RPT 2 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 Atoka 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 OK3000306 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
2025 TTHM MCL 121 SDWIS / OK3000306 / 2950
2025 Total Haloacetic Acids (HAA5) MCL 16 SDWIS / OK3000306 / 2456
2025 TTHM MR 7 SDWIS / OK3000306 / 2950
2025 Total Haloacetic Acids (HAA5) MR 5 SDWIS / OK3000306 / 2456
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / OK3000306 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / OK3000306 / 5200

How Atoka Co. RWD #2 Compares

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

Metric Atoka Co. RWD #2 Oklahoma avg Federal benchmark
Total violations 153 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 139 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 500 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 Atoka Co. RWD #2 water safe to drink? ▼
Atoka Co. RWD #2 (PWS ID: OK3000306) has 153 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 500 people using Surface Water sources.
How many people does Atoka Co. RWD #2 serve? ▼
Atoka Co. RWD #2 serves 500 people in Atoka, Oklahoma. It is a Local-owned system using Surface Water water sources with 410 service connections.
What type of violations does Atoka Co. RWD #2 have? ▼
Atoka Co. RWD #2 has 153 total violations: 139 health-based violations (MCL exceedances or treatment failures), 12 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Atoka Co. RWD #2 water? ▼
No PFAS testing data is available for Atoka Co. RWD #2 under the EPA's UCMR5 monitoring program.
What water source does Atoka Co. RWD #2 use? ▼
Atoka 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.