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Community Water System · PWS MT0004588

Spanish Peaks Mountain Club

Big Sky, Montana 59716 - drinking water served from groundwater sources to 40 people, tracked in EPA SDWIS and UCMR5.

40
People served
532
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 532 drinking-water violations at Spanish Peaks Mountain Club - above the Montana per-system average.

532
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
40
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Spanish Peaks Mountain Club

Spanish Peaks Mountain Club is a private-owned community water system that delivers drinking water to 40 residents in Big Sky, Montana (Gallatin County) through 232 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 532 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 530 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Gross Alpha, Excl. Radon and U, recorded in 30 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 Montana, EPA tracks 2,263 public water systems serving 1,112,267 people, with 297,270 cumulative violations and 25,922 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 131.4 violations. Statewide, 5 of 45 UCMR5-tested systems have reported PFAS detections (11.1%).

Spanish Peaks Mountain Club's 532 violations sit above the Montana 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
40
Total Violations
532
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
232
County
Gallatin
School/Daycare
No
MCL Violations
0
Monitoring Violations
530
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Gross Alpha, Excl. Radon and U MR 30 2020
Combined Radium (-226 and -228) MR 27 2020
1,2,4-Trichlorobenzene MR 22 2020
Xylenes, Total MR 22 2020
o-Dichlorobenzene MR 22 2020
Vinyl chloride MR 22 2020
1,1-Dichloroethylene MR 22 2020
1,2-Dichloroethane MR 22 2020
1,2-Dichloropropane MR 22 2020
Toluene MR 22 2020
Styrene MR 22 2020
cis-1,2-Dichloroethylene MR 22 2020
1,1,2-Trichloroethane MR 22 2020
Benzene MR 22 2020
Ethylbenzene MR 22 2020
p-Dichlorobenzene MR 22 2020
1,1,1-Trichloroethane MR 22 2020
Carbon tetrachloride MR 22 2020
Trichloroethylene MR 22 2020
CHLOROBENZENE MR 22 2020
Tetrachloroethylene MR 22 2020
trans-1,2-Dichloroethylene MR 22 2020
DICHLOROMETHANE MR 22 2020
Coliform (TCR) MR 3 2008
Asbestos MR 3 2011
Fluoride MR 3 2020
Lead and Copper Rule MR 2 2014
Consumer Confidence Rule Other 2 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 Spanish Peaks Mountain Club.

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 MT0004588 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Montana Drinking Water Authority

Montana'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 MT 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
2020 Gross Alpha, Excl. Radon and U MR 30 SDWIS / MT0004588 / 4000
2020 Combined Radium (-226 and -228) MR 27 SDWIS / MT0004588 / 4010
2020 1,2,4-Trichlorobenzene MR 22 SDWIS / MT0004588 / 2378
2020 Xylenes, Total MR 22 SDWIS / MT0004588 / 2955
2020 o-Dichlorobenzene MR 22 SDWIS / MT0004588 / 2968
2020 Vinyl chloride MR 22 SDWIS / MT0004588 / 2976
2020 1,1-Dichloroethylene MR 22 SDWIS / MT0004588 / 2977
2020 1,2-Dichloroethane MR 22 SDWIS / MT0004588 / 2980
2020 1,2-Dichloropropane MR 22 SDWIS / MT0004588 / 2983
2020 Toluene MR 22 SDWIS / MT0004588 / 2991
2020 Styrene MR 22 SDWIS / MT0004588 / 2996
2020 cis-1,2-Dichloroethylene MR 22 SDWIS / MT0004588 / 2380
2020 1,1,2-Trichloroethane MR 22 SDWIS / MT0004588 / 2985
2020 Benzene MR 22 SDWIS / MT0004588 / 2990
2020 Ethylbenzene MR 22 SDWIS / MT0004588 / 2992

How Spanish Peaks Mountain Club Compares

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

Metric Spanish Peaks Mountain Club Montana avg Federal benchmark
Total violations 532 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 11.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 11.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 40 492 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,263 regulated public water systems in Montana.

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 Spanish Peaks Mountain Club water safe to drink? ▼
Spanish Peaks Mountain Club (PWS ID: MT0004588) has 532 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 40 people using Groundwater sources.
How many people does Spanish Peaks Mountain Club serve? ▼
Spanish Peaks Mountain Club serves 40 people in Big Sky, Montana. It is a Private-owned system using Groundwater water sources with 232 service connections.
What type of violations does Spanish Peaks Mountain Club have? ▼
Spanish Peaks Mountain Club has 532 total violations: 0 health-based violations (MCL exceedances or treatment failures), 530 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Spanish Peaks Mountain Club water? ▼
No PFAS testing data is available for Spanish Peaks Mountain Club under the EPA's UCMR5 monitoring program.
What water source does Spanish Peaks Mountain Club use? ▼
Spanish Peaks Mountain Club 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.