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States → EPA Region 5 — Tribal Water Systems

Community Water System · PWS 055294602

Redby/Red Lake

Red Lake, EPA Region 5 — Tribal Water Systems 56671 - drinking water served from groundwater sources to 2,099 people, tracked in EPA SDWIS and UCMR5.

2,099
People served
233
EPA violations
8
Health-based
Untested
UCMR5 result

The verdict

EPA records 233 drinking-water violations at Redby/Red Lake, 3% of them health-based.

233
Total EPA violations on record
3%
Health-based (MCL / treatment failure)
2,099
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Redby/Red Lake

Redby/Red Lake is a native american-owned community water system that delivers drinking water to 2,099 residents in Red Lake, EPA Region 5 — Tribal Water Systems through 442 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 233 total violations for this system , of which 8 (3%) 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 Revised Total Coliform Rule, recorded in 20 violations (MON). 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
2,099
Total Violations
233
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
442
School/Daycare
No
MCL Violations
0
Monitoring Violations
206
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 20 2024
Coliform (TCR) MR 17 2013
Nitrate MR 11 2023
Arsenic MR 10 2020
Groundwater Rule TT 8 2025
Barium MR 6 2008
Chromium MR 6 2008
CYANIDE MR 6 2008
Mercury MR 6 2008
Nickel MR 6 2008
Antimony, Total MR 6 2008
Asbestos MR 6 2008
Selenium MR 6 2008
Beryllium, Total MR 6 2008
Thallium, Total MR 6 2008
Fluoride MR 6 2008
Cadmium MR 6 2008
Consumer Confidence Rule Other 4 2025
Public Notice Other 4 2025
Gross Alpha, Excl. Radon and U MR 3 2008
Xylenes, Total MR 3 2014
DICHLOROMETHANE MR 3 2014
o-Dichlorobenzene MR 3 2014
1,1-Dichloroethylene MR 3 2014
1,1,1-Trichloroethane MR 3 2014
Carbon tetrachloride MR 3 2014
1,2-Dichloropropane MR 3 2014
Trichloroethylene MR 3 2014
Tetrachloroethylene MR 3 2014
Benzene 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 Redby/Red Lake.

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 055294602 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 Groundwater Rule TT 8 SDWIS / 055294602 / 0700
2025 Consumer Confidence Rule Other 4 SDWIS / 055294602 / 7000
2025 Public Notice Other 4 SDWIS / 055294602 / 7500
2025 Groundwater Rule Other 1 SDWIS / 055294602 / 0700
2024 Revised Total Coliform Rule MON 20 SDWIS / 055294602 / 8000
2023 Nitrate MR 11 SDWIS / 055294602 / 1040
2020 Arsenic MR 10 SDWIS / 055294602 / 1005
2017 2,3,7,8-TCDD MR 3 SDWIS / 055294602 / 2063
2017 E. COLI MR 1 SDWIS / 055294602 / 3014
2016 Revised Total Coliform Rule Other 3 SDWIS / 055294602 / 8000
2014 Xylenes, Total MR 3 SDWIS / 055294602 / 2955
2014 DICHLOROMETHANE MR 3 SDWIS / 055294602 / 2964
2014 o-Dichlorobenzene MR 3 SDWIS / 055294602 / 2968
2014 1,1-Dichloroethylene MR 3 SDWIS / 055294602 / 2977
2014 1,1,1-Trichloroethane MR 3 SDWIS / 055294602 / 2981

How Redby/Red Lake Compares

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

Metric Redby/Red Lake EPA Region 5 — Tribal Water Systems avg Federal benchmark
Total violations 233 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 8 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,099 - 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 Redby/Red Lake water safe to drink? ▼
Redby/Red Lake (PWS ID: 055294602) has 233 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,099 people using Groundwater sources.
How many people does Redby/Red Lake serve? ▼
Redby/Red Lake serves 2,099 people in Red Lake, EPA Region 5 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 442 service connections.
What type of violations does Redby/Red Lake have? ▼
Redby/Red Lake has 233 total violations: 8 health-based violations (MCL exceedances or treatment failures), 206 monitoring/reporting violations, and 8 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Redby/Red Lake water? ▼
No PFAS testing data is available for Redby/Red Lake under the EPA's UCMR5 monitoring program.
What water source does Redby/Red Lake use? ▼
Redby/Red Lake 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.