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States → EPA Region 10 — Tribal Water Systems

Non-Transient Non-Community Water System · PWS 101600015

Coeur D'alene Casino

Worley, EPA Region 10 — Tribal Water Systems 83876-0236 - drinking water served from groundwater sources to 3,250 people, tracked in EPA SDWIS and UCMR5.

3,250
People served
45
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 45 drinking-water violations at Coeur D'alene Casino, 4% of them health-based.

45
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
3,250
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Coeur D'alene Casino

Coeur D'alene Casino is a native american-owned non-transient non-community water system that delivers drinking water to 3,250 residents in Worley, EPA Region 10 — Tribal Water Systems through 4 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 45 total violations for this system , of which 2 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 42 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 Coliform (TCR), recorded in 21 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 10 — 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
3,250
Total Violations
45
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Native American
Connections
4
School/Daycare
No
MCL Violations
1
Monitoring Violations
42
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 21 2013
Chlorine MR 10 2025
Lead and Copper Rule MR 3 2017
TTHM MR 2 2008
Total Haloacetic Acids (HAA5) MR 2 2008
Lead and Copper Rule TT 1 2017
CYANIDE MR 1 2008
Coliform (TCR) MCL 1 2002
Nitrate MR 1 2009
Revised Total Coliform Rule MON 1 2025
Asbestos MR 1 2008

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 Coeur D'alene Casino.

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 101600015 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 10 — Tribal Water Systems Drinking Water Authority

EPA Region 10 — 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 10 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 10 SDWIS / 101600015 / 0999
2025 Revised Total Coliform Rule MON 1 SDWIS / 101600015 / 8000
2017 Lead and Copper Rule MR 3 SDWIS / 101600015 / 5000
2017 Lead and Copper Rule TT 1 SDWIS / 101600015 / 5000
2013 Coliform (TCR) MR 21 SDWIS / 101600015 / 3100
2009 Nitrate MR 1 SDWIS / 101600015 / 1040
2008 TTHM MR 2 SDWIS / 101600015 / 2950
2008 Total Haloacetic Acids (HAA5) MR 2 SDWIS / 101600015 / 2456
2008 CYANIDE MR 1 SDWIS / 101600015 / 1024
2008 Asbestos MR 1 SDWIS / 101600015 / 1094
2002 Coliform (TCR) MCL 1 SDWIS / 101600015 / 3100

How Coeur D'alene Casino Compares

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

Metric Coeur D'alene Casino EPA Region 10 — Tribal Water Systems avg Federal benchmark
Total violations 45 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,250 - 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 10 — 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 Coeur D'alene Casino water safe to drink? ▼
Coeur D'alene Casino (PWS ID: 101600015) has 45 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,250 people using Groundwater sources.
How many people does Coeur D'alene Casino serve? ▼
Coeur D'alene Casino serves 3,250 people in Worley, EPA Region 10 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 4 service connections.
What type of violations does Coeur D'alene Casino have? ▼
Coeur D'alene Casino has 45 total violations: 2 health-based violations (MCL exceedances or treatment failures), 42 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Coeur D'alene Casino water? ▼
No PFAS testing data is available for Coeur D'alene Casino under the EPA's UCMR5 monitoring program.
What water source does Coeur D'alene Casino use? ▼
Coeur D'alene Casino 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.