PlainWater
States → EPA Region 4 — Tribal Water Systems

Community Water System · PWS 042800002

Choctaw - Conehatta

Choctaw, EPA Region 4 — Tribal Water Systems 39350 - drinking water served from groundwater sources to 1,201 people, tracked in EPA SDWIS and UCMR5.

1,201
People served
191
EPA violations
1
Health-based
Untested
UCMR5 result

The verdict

EPA records 191 drinking-water violations at Choctaw - Conehatta, 1% of them health-based.

191
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
1,201
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Choctaw - Conehatta

Choctaw - Conehatta is a native american-owned community water system that delivers drinking water to 1,201 residents in Choctaw, EPA Region 4 — Tribal Water Systems through 245 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 191 total violations for this system , of which 1 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 190 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 Combined Radium (-226 and -228), recorded in 6 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

EPA Region 4 — Tribal Water Systems has thousands of regulated public water systems tracked by EPA under the Safe Drinking Water Act.

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
1,201
Total Violations
191
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
245
School/Daycare
No
MCL Violations
0
Monitoring Violations
190
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Radium (-226 and -228) MR 6 2009
Combined Uranium MR 6 2009
Radium-226 MR 6 2009
Radium-228 MR 6 2009
Gross Alpha, Excl. Radon and U MR 6 2009
Nitrate MR 5 2016
TTHM MR 4 2014
Total Haloacetic Acids (HAA5) MR 4 2014
Total Polychlorinated Biphenyls (PCB) MR 4 2014
Atrazine MR 4 2014
Picloram MR 4 2014
Endothall MR 4 2014
Dalapon MR 4 2014
LASSO MR 4 2014
Carbofuran MR 4 2014
Diquat MR 4 2014
Di(2-ethylhexyl) adipate MR 4 2014
Glyphosate MR 4 2014
Simazine MR 4 2014
OXAMYL MR 4 2014
Arsenic MR 3 2014
Cadmium MR 3 2014
CYANIDE MR 3 2014
Nickel MR 3 2014
Antimony, Total MR 3 2014
Beryllium, Total MR 3 2014
Thallium, Total MR 3 2014
Selenium MR 3 2014
Dinoseb MR 3 2014
Hexachlorocyclopentadiene MR 3 2014

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 Choctaw - Conehatta.

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 042800002 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 4 — Tribal Water Systems Drinking Water Authority

EPA Region 4 — Tribal Water Systems'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 04 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
2020 Groundwater Rule TT 1 SDWIS / 042800002 / 0700
2016 Nitrate MR 5 SDWIS / 042800002 / 1040
2014 TTHM MR 4 SDWIS / 042800002 / 2950
2014 Total Haloacetic Acids (HAA5) MR 4 SDWIS / 042800002 / 2456
2014 Total Polychlorinated Biphenyls (PCB) MR 4 SDWIS / 042800002 / 2383
2014 Atrazine MR 4 SDWIS / 042800002 / 2050
2014 Picloram MR 4 SDWIS / 042800002 / 2040
2014 Endothall MR 4 SDWIS / 042800002 / 2033
2014 Dalapon MR 4 SDWIS / 042800002 / 2031
2014 LASSO MR 4 SDWIS / 042800002 / 2051
2014 Carbofuran MR 4 SDWIS / 042800002 / 2046
2014 Diquat MR 4 SDWIS / 042800002 / 2032
2014 Di(2-ethylhexyl) adipate MR 4 SDWIS / 042800002 / 2035
2014 Glyphosate MR 4 SDWIS / 042800002 / 2034
2014 Simazine MR 4 SDWIS / 042800002 / 2037

How Choctaw - Conehatta Compares

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

Metric Choctaw - Conehatta EPA Region 4 — Tribal Water Systems avg Federal benchmark
Total violations 191 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 1 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,201 - Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across all regulated public water systems in EPA Region 4 — Tribal Water Systems.

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 Choctaw - Conehatta water safe to drink? ▼
Choctaw - Conehatta (PWS ID: 042800002) has 191 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,201 people using Groundwater sources.
How many people does Choctaw - Conehatta serve? ▼
Choctaw - Conehatta serves 1,201 people in Choctaw, EPA Region 4 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 245 service connections.
What type of violations does Choctaw - Conehatta have? ▼
Choctaw - Conehatta has 191 total violations: 1 health-based violations (MCL exceedances or treatment failures), 190 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Choctaw - Conehatta water? ▼
No PFAS testing data is available for Choctaw - Conehatta under the EPA's UCMR5 monitoring program.
What water source does Choctaw - Conehatta use? ▼
Choctaw - Conehatta 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.