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States → EPA Region 9 — Tribal Water Systems

Community Water System · PWS 090400076

WMATUA Hondah-McNary

Whiteriver, EPA Region 9 — Tribal Water Systems 85941 - drinking water served from groundwater sources to 2,988 people, tracked in EPA SDWIS and UCMR5.

2,988
People served
172
EPA violations
4
Health-based
Untested
UCMR5 result

The verdict

EPA records 172 drinking-water violations at WMATUA Hondah-McNary, 2% of them health-based.

172
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
2,988
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: WMATUA Hondah-McNary

WMATUA Hondah-McNary is a native american-owned community water system that delivers drinking water to 2,988 residents in Whiteriver, EPA Region 9 — Tribal Water Systems through 384 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 172 total violations for this system , of which 4 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 121 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 Coliform (TCR), recorded in 11 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 9 — 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
2,988
Total Violations
172
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
384
School/Daycare
No
MCL Violations
1
Monitoring Violations
121
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 11 2015
Nitrate MR 8 2015
Total Haloacetic Acids (HAA5) MR 4 2007
TTHM MR 4 2007
Gross Alpha, Excl. Radon and U MR 3 2011
Combined Uranium MR 3 2011
Combined Radium (-226 and -228) MR 3 2011
LEAD AND COPPER RULE REVISIONS TT 3 2024
Consumer Confidence Rule Other 3 2004
1,2,4-Trichlorobenzene MR 2 2011
cis-1,2-Dichloroethylene MR 2 2011
Xylenes, Total MR 2 2011
DICHLOROMETHANE MR 2 2011
Vinyl chloride MR 2 2011
1,1-Dichloroethylene MR 2 2011
trans-1,2-Dichloroethylene MR 2 2011
1,2-Dichloroethane MR 2 2011
1,1,1-Trichloroethane MR 2 2011
Carbon tetrachloride MR 2 2011
1,2-Dichloropropane MR 2 2011
1,1,2-Trichloroethane MR 2 2011
CHLOROBENZENE MR 2 2011
Ethylbenzene MR 2 2011
Benzene MR 2 2011
Toluene MR 2 2011
Styrene MR 2 2011
Tetrachloroethylene MR 2 2011
Cadmium MR 2 2011
o-Dichlorobenzene MR 2 2011
Trichloroethylene MR 2 2011

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 WMATUA Hondah-McNary.

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 090400076 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 9 — Tribal Water Systems Drinking Water Authority

EPA Region 9 — 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 09 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 LEAD AND COPPER RULE REVISIONS TT 3 SDWIS / 090400076 / 5200
2021 Revised Total Coliform Rule MON 1 SDWIS / 090400076 / 8000
2021 Public Notice Other 1 SDWIS / 090400076 / 7500
2015 Coliform (TCR) MR 11 SDWIS / 090400076 / 3100
2015 Nitrate MR 8 SDWIS / 090400076 / 1040
2011 Gross Alpha, Excl. Radon and U MR 3 SDWIS / 090400076 / 4000
2011 Combined Uranium MR 3 SDWIS / 090400076 / 4006
2011 Combined Radium (-226 and -228) MR 3 SDWIS / 090400076 / 4010
2011 1,2,4-Trichlorobenzene MR 2 SDWIS / 090400076 / 2378
2011 cis-1,2-Dichloroethylene MR 2 SDWIS / 090400076 / 2380
2011 Xylenes, Total MR 2 SDWIS / 090400076 / 2955
2011 DICHLOROMETHANE MR 2 SDWIS / 090400076 / 2964
2011 Vinyl chloride MR 2 SDWIS / 090400076 / 2976
2011 1,1-Dichloroethylene MR 2 SDWIS / 090400076 / 2977
2011 trans-1,2-Dichloroethylene MR 2 SDWIS / 090400076 / 2979

How WMATUA Hondah-McNary Compares

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

Metric WMATUA Hondah-McNary EPA Region 9 — Tribal Water Systems avg Federal benchmark
Total violations 172 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 4 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,988 - 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 9 — 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 WMATUA Hondah-McNary water safe to drink? ▼
WMATUA Hondah-McNary (PWS ID: 090400076) has 172 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,988 people using Groundwater sources.
How many people does WMATUA Hondah-McNary serve? ▼
WMATUA Hondah-McNary serves 2,988 people in Whiteriver, EPA Region 9 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 384 service connections.
What type of violations does WMATUA Hondah-McNary have? ▼
WMATUA Hondah-McNary has 172 total violations: 4 health-based violations (MCL exceedances or treatment failures), 121 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in WMATUA Hondah-McNary water? ▼
No PFAS testing data is available for WMATUA Hondah-McNary under the EPA's UCMR5 monitoring program.
What water source does WMATUA Hondah-McNary use? ▼
WMATUA Hondah-McNary 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.