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Community Water System · PWS OK2000707

Achille

Achille, Oklahoma 74720 - drinking water served from groundwater sources to 506 people, tracked in EPA SDWIS and UCMR5.

506
People served
83
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 83 drinking-water violations at Achille, 2% of them health-based - below the Oklahoma per-system average.

83
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
506
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Achille

Achille is a local-owned community water system that delivers drinking water to 506 residents in Achille, Oklahoma (Bryan County) through 238 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 83 total violations for this system , of which 2 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 67 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 23 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 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%).

Achille's 83 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
506
Total Violations
83
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
238
County
Bryan
School/Daycare
No
MCL Violations
2
Monitoring Violations
67
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 23 2003
Lead and Copper Rule MR 10 2009
Gross Alpha, Excl. Radon and U MR 7 2008
Combined Radium (-226 and -228) MR 7 2008
Gross Beta Particle Activity MR 7 2008
Nitrate-Nitrite MR 5 2007
Combined Uranium MR 4 2008
Arsenic MR 4 2011
Consumer Confidence Rule Other 2 2022
Coliform (TCR) MCL 2 1999

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 Achille.

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 OK2000707 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
2022 Consumer Confidence Rule Other 2 SDWIS / OK2000707 / 7000
2011 Arsenic MR 4 SDWIS / OK2000707 / 1005
2009 Lead and Copper Rule MR 10 SDWIS / OK2000707 / 5000
2008 Gross Alpha, Excl. Radon and U MR 7 SDWIS / OK2000707 / 4000
2008 Combined Radium (-226 and -228) MR 7 SDWIS / OK2000707 / 4010
2008 Gross Beta Particle Activity MR 7 SDWIS / OK2000707 / 4100
2008 Combined Uranium MR 4 SDWIS / OK2000707 / 4006
2007 Nitrate-Nitrite MR 5 SDWIS / OK2000707 / 1038
2003 Coliform (TCR) MR 23 SDWIS / OK2000707 / 3100
1999 Coliform (TCR) MCL 2 SDWIS / OK2000707 / 3100

How Achille Compares

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

Metric Achille Oklahoma avg Federal benchmark
Total violations 83 266.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 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 506 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 Achille water safe to drink? ▼
Achille (PWS ID: OK2000707) has 83 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 506 people using Groundwater sources.
How many people does Achille serve? ▼
Achille serves 506 people in Achille, Oklahoma. It is a Local-owned system using Groundwater water sources with 238 service connections.
What type of violations does Achille have? ▼
Achille has 83 total violations: 2 health-based violations (MCL exceedances or treatment failures), 67 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Achille water? ▼
No PFAS testing data is available for Achille under the EPA's UCMR5 monitoring program.
What water source does Achille use? ▼
Achille 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.