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States → EPA Region 5 — Tribal Water Systems

Non-Transient Non-Community Water System · PWS 050594204

Bug-O-Nay-Ge-Shig School

Bena, EPA Region 5 — Tribal Water Systems 56626 - drinking water served from groundwater sources to 520 people, tracked in EPA SDWIS and UCMR5.

520
People served
215
EPA violations
5
Health-based
Untested
UCMR5 result

The verdict

EPA records 215 drinking-water violations at Bug-O-Nay-Ge-Shig School, 2% of them health-based.

215
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
520
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Bug-O-Nay-Ge-Shig School

Bug-O-Nay-Ge-Shig School is a native american-owned non-transient non-community water system that delivers drinking water to 520 residents in Bena, EPA Region 5 — Tribal Water Systems through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 215 total violations for this system , of which 5 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 206 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 Chlorine, recorded in 14 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 5 — 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
520
Total Violations
215
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Native American
Connections
1
School/Daycare
Yes
MCL Violations
1
Monitoring Violations
206
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 14 2025
Arsenic MR 12 2024
Cadmium MR 12 2024
CYANIDE MR 12 2024
Fluoride MR 12 2024
Mercury MR 12 2024
Beryllium, Total MR 12 2024
Chromium MR 12 2024
Nickel MR 12 2024
Antimony, Total MR 12 2024
Selenium MR 12 2024
Revised Total Coliform Rule MON 12 2025
Barium MR 12 2024
Thallium, Total MR 12 2024
Lead and Copper Rule MR 11 2025
Asbestos MR 10 2024
Total Haloacetic Acids (HAA5) MR 5 2022
TTHM MR 5 2022
Revised Total Coliform Rule TT 4 2024
Nitrate MR 3 2022
Coliform (TCR) MR 2 2013
Coliform (TCR) MCL 1 1995

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 Bug-O-Nay-Ge-Shig School.

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 050594204 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 5 — Tribal Water Systems Drinking Water Authority

EPA Region 5 — 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 05 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 Chlorine MR 14 SDWIS / 050594204 / 0999
2025 Revised Total Coliform Rule MON 12 SDWIS / 050594204 / 8000
2025 Lead and Copper Rule MR 11 SDWIS / 050594204 / 5000
2024 Arsenic MR 12 SDWIS / 050594204 / 1005
2024 Cadmium MR 12 SDWIS / 050594204 / 1015
2024 CYANIDE MR 12 SDWIS / 050594204 / 1024
2024 Fluoride MR 12 SDWIS / 050594204 / 1025
2024 Mercury MR 12 SDWIS / 050594204 / 1035
2024 Beryllium, Total MR 12 SDWIS / 050594204 / 1075
2024 Chromium MR 12 SDWIS / 050594204 / 1020
2024 Nickel MR 12 SDWIS / 050594204 / 1036
2024 Antimony, Total MR 12 SDWIS / 050594204 / 1074
2024 Selenium MR 12 SDWIS / 050594204 / 1045
2024 Barium MR 12 SDWIS / 050594204 / 1010
2024 Thallium, Total MR 12 SDWIS / 050594204 / 1085

How Bug-O-Nay-Ge-Shig School Compares

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

Metric Bug-O-Nay-Ge-Shig School EPA Region 5 — Tribal Water Systems avg Federal benchmark
Total violations 215 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 5 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 520 - 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 5 — 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 Bug-O-Nay-Ge-Shig School water safe to drink? ▼
Bug-O-Nay-Ge-Shig School (PWS ID: 050594204) has 215 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 520 people using Groundwater sources.
How many people does Bug-O-Nay-Ge-Shig School serve? ▼
Bug-O-Nay-Ge-Shig School serves 520 people in Bena, EPA Region 5 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 1 service connections.
What type of violations does Bug-O-Nay-Ge-Shig School have? ▼
Bug-O-Nay-Ge-Shig School has 215 total violations: 5 health-based violations (MCL exceedances or treatment failures), 206 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Bug-O-Nay-Ge-Shig School water? ▼
No PFAS testing data is available for Bug-O-Nay-Ge-Shig School under the EPA's UCMR5 monitoring program.
What water source does Bug-O-Nay-Ge-Shig School use? ▼
Bug-O-Nay-Ge-Shig School uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.