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Non-Transient Non-Community Water System · PWS ID1400028

Hecla Mining Company Lucky Friday

Mullan, Idaho 83846 - drinking water served from surface water sources to 420 people, tracked in EPA SDWIS and UCMR5.

420
People served
13
EPA violations
1
Health-based
Untested
UCMR5 result

The verdict

EPA records 13 drinking-water violations at Hecla Mining Company Lucky Friday, 8% of them health-based - below the Idaho per-system average.

13
Total EPA violations on record
8%
Health-based (MCL / treatment failure)
420
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Hecla Mining Company Lucky Friday

Hecla Mining Company Lucky Friday is a private-owned non-transient non-community water system that delivers drinking water to 420 residents in Mullan, Idaho (Shoshone County) through 1 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 13 total violations for this system , of which 1 (8%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 11 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 Surface Water Treatment Rule, recorded in 3 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Idaho, EPA tracks 2,005 public water systems serving 1,743,912 people, with 104,850 cumulative violations and 19,965 health-based violations on record. About 96% of systems in the state carry at least one violation, and state-wide the average per system is 52.3 violations. Statewide, 40 of 60 UCMR5-tested systems have reported PFAS detections (66.7%).

Hecla Mining Company Lucky Friday's 13 violations sit below the Idaho average.

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
420
Total Violations
13
Health-Based Violations
1
Water Source
Surface Water

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Shoshone
School/Daycare
No
MCL Violations
0
Monitoring Violations
11
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule MR 3 2017
Chlorine MR 2 2018
Coliform (TCR) MR 2 2013
Di(2-ethylhexyl) phthalate MR 1 1996
TTHM MR 1 2025
Surface Water Treatment Rule TT 1 2007
CYANIDE MR 1 2002
Total Haloacetic Acids (HAA5) MR 1 2025

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 Hecla Mining Company Lucky Friday.

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 ID1400028 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Idaho Drinking Water Authority

Idaho'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 ID 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 TTHM MR 1 SDWIS / ID1400028 / 2950
2025 Total Haloacetic Acids (HAA5) MR 1 SDWIS / ID1400028 / 2456
2018 Chlorine MR 2 SDWIS / ID1400028 / 0999
2017 Surface Water Treatment Rule MR 3 SDWIS / ID1400028 / 0200
2013 Coliform (TCR) MR 2 SDWIS / ID1400028 / 3100
2007 Surface Water Treatment Rule TT 1 SDWIS / ID1400028 / 0200
2002 CYANIDE MR 1 SDWIS / ID1400028 / 1024
1996 Di(2-ethylhexyl) phthalate MR 1 SDWIS / ID1400028 / 2039

How Hecla Mining Company Lucky Friday Compares

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

Metric Hecla Mining Company Lucky Friday Idaho avg Federal benchmark
Total violations 13 52.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 1 10 Indicates a contaminant exceeded a federal MCL
PFAS detection None 66.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 420 870 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,005 regulated public water systems in Idaho.

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 Hecla Mining Company Lucky Friday water safe to drink? ▼
Hecla Mining Company Lucky Friday (PWS ID: ID1400028) has 13 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 420 people using Surface Water sources.
How many people does Hecla Mining Company Lucky Friday serve? ▼
Hecla Mining Company Lucky Friday serves 420 people in Mullan, Idaho. It is a Private-owned system using Surface Water water sources with 1 service connections.
What type of violations does Hecla Mining Company Lucky Friday have? ▼
Hecla Mining Company Lucky Friday has 13 total violations: 1 health-based violations (MCL exceedances or treatment failures), 11 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Hecla Mining Company Lucky Friday water? ▼
No PFAS testing data is available for Hecla Mining Company Lucky Friday under the EPA's UCMR5 monitoring program.
What water source does Hecla Mining Company Lucky Friday use? ▼
Hecla Mining Company Lucky Friday uses Surface Water 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.