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States → EPA Region 8 — Tribal Water Systems

Community Water System · PWS 083090007

Starr School Water System

Browning, EPA Region 8 — Tribal Water Systems 59417 - drinking water served from groundwater sources to 250 people, tracked in EPA SDWIS and UCMR5.

250
People served
56
EPA violations
10
Health-based
Untested
UCMR5 result

The verdict

EPA records 56 drinking-water violations at Starr School Water System, 18% of them health-based.

56
Total EPA violations on record
18%
Health-based (MCL / treatment failure)
250
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Starr School Water System

Starr School Water System is a native american-owned community water system that delivers drinking water to 250 residents in Browning, EPA Region 8 — Tribal Water Systems through 60 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 56 total violations for this system , of which 10 (18%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 39 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 29 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 8 — 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
250
Total Violations
56
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
60
School/Daycare
No
MCL Violations
6
Monitoring Violations
39
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 29 2014
Coliform (TCR) MCL 6 2014
Revised Total Coliform Rule MON 5 2023
Consumer Confidence Rule Other 5 2023
Lead and Copper Rule MR 3 2022
Groundwater Rule TT 2 2018
Revised Total Coliform Rule TT 2 2022
Gross Alpha, Excl. Radon and U MR 1 1976
Combined Radium (-226 and -228) MR 1 1976

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 Starr School Water System.

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 083090007 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 8 — Tribal Water Systems Drinking Water Authority

EPA Region 8 — 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 08 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
2023 Revised Total Coliform Rule MON 5 SDWIS / 083090007 / 8000
2023 Consumer Confidence Rule Other 5 SDWIS / 083090007 / 7000
2022 Lead and Copper Rule MR 3 SDWIS / 083090007 / 5000
2022 Revised Total Coliform Rule TT 2 SDWIS / 083090007 / 8000
2018 Groundwater Rule TT 2 SDWIS / 083090007 / 0700
2014 Coliform (TCR) MR 29 SDWIS / 083090007 / 3100
2014 Coliform (TCR) MCL 6 SDWIS / 083090007 / 3100
1976 Gross Alpha, Excl. Radon and U MR 1 SDWIS / 083090007 / 4000
1976 Combined Radium (-226 and -228) MR 1 SDWIS / 083090007 / 4010

How Starr School Water System Compares

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

Metric Starr School Water System EPA Region 8 — Tribal Water Systems avg Federal benchmark
Total violations 56 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 10 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 250 - 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 8 — 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 Starr School Water System water safe to drink? ▼
Starr School Water System (PWS ID: 083090007) has 56 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 250 people using Groundwater sources.
How many people does Starr School Water System serve? ▼
Starr School Water System serves 250 people in Browning, EPA Region 8 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 60 service connections.
What type of violations does Starr School Water System have? ▼
Starr School Water System has 56 total violations: 10 health-based violations (MCL exceedances or treatment failures), 39 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Starr School Water System water? ▼
No PFAS testing data is available for Starr School Water System under the EPA's UCMR5 monitoring program.
What water source does Starr School Water System use? ▼
Starr School Water System 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.