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Community Water System · PWS 055295802

Red Cliff North

Bayfield, EPA Region 5 — Tribal Water Systems 54814 - drinking water served from groundwater sources to 2,080 people, tracked in EPA SDWIS and UCMR5.

2,080
People served
410
EPA violations
3
Health-based
Untested
UCMR5 result

The verdict

EPA records 410 drinking-water violations at Red Cliff North, 1% of them health-based.

410
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
2,080
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Red Cliff North

Red Cliff North is a native american-owned community water system that delivers drinking water to 2,080 residents in Bayfield, EPA Region 5 — Tribal Water Systems through 469 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 410 total violations for this system , of which 3 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 386 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 23 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
2,080
Total Violations
410
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
469
School/Daycare
No
MCL Violations
0
Monitoring Violations
386
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 23 2021
Revised Total Coliform Rule MON 23 2021
Lead and Copper Rule MR 11 2022
Nitrate MR 8 2023
Revised Total Coliform Rule RPT 8 2025
Arsenic MR 7 2017
Barium MR 7 2017
Mercury MR 7 2017
Nickel MR 7 2017
Antimony, Total MR 7 2017
Beryllium, Total MR 7 2017
Thallium, Total MR 7 2017
Selenium MR 7 2017
Chromium MR 7 2017
Cadmium MR 7 2017
CYANIDE MR 7 2017
Coliform (TCR) MR 6 2015
Asbestos MR 6 2024
TTHM MR 5 2021
Consumer Confidence Rule Other 5 2021
Total Haloacetic Acids (HAA5) MR 5 2021
cis-1,2-Dichloroethylene MR 4 2017
Xylenes, Total MR 4 2017
o-Dichlorobenzene MR 4 2017
1,1-Dichloroethylene MR 4 2017
1,2-Dichloroethane MR 4 2017
Carbon tetrachloride MR 4 2017
1,1,2-Trichloroethane MR 4 2017
CHLOROBENZENE MR 4 2017
Benzene MR 4 2017

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 Red Cliff North.

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 055295802 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 Revised Total Coliform Rule RPT 8 SDWIS / 055295802 / 8000
2024 Asbestos MR 6 SDWIS / 055295802 / 1094
2024 Groundwater Rule TT 3 SDWIS / 055295802 / 0700
2023 Nitrate MR 8 SDWIS / 055295802 / 1040
2022 Lead and Copper Rule MR 11 SDWIS / 055295802 / 5000
2021 Chlorine MR 23 SDWIS / 055295802 / 0999
2021 Revised Total Coliform Rule MON 23 SDWIS / 055295802 / 8000
2021 TTHM MR 5 SDWIS / 055295802 / 2950
2021 Consumer Confidence Rule Other 5 SDWIS / 055295802 / 7000
2021 Total Haloacetic Acids (HAA5) MR 5 SDWIS / 055295802 / 2456
2017 Arsenic MR 7 SDWIS / 055295802 / 1005
2017 Barium MR 7 SDWIS / 055295802 / 1010
2017 Mercury MR 7 SDWIS / 055295802 / 1035
2017 Nickel MR 7 SDWIS / 055295802 / 1036
2017 Antimony, Total MR 7 SDWIS / 055295802 / 1074

How Red Cliff North Compares

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

Metric Red Cliff North EPA Region 5 — Tribal Water Systems avg Federal benchmark
Total violations 410 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 3 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,080 - 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 Red Cliff North water safe to drink? ▼
Red Cliff North (PWS ID: 055295802) has 410 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,080 people using Groundwater sources.
How many people does Red Cliff North serve? ▼
Red Cliff North serves 2,080 people in Bayfield, EPA Region 5 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 469 service connections.
What type of violations does Red Cliff North have? ▼
Red Cliff North has 410 total violations: 3 health-based violations (MCL exceedances or treatment failures), 386 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Red Cliff North water? ▼
No PFAS testing data is available for Red Cliff North under the EPA's UCMR5 monitoring program.
What water source does Red Cliff North use? ▼
Red Cliff North 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.