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Community Water System · PWS MT0000030

Blue Sky Heights Wua Clancy

Clancy, Montana 59634 - drinking water served from groundwater sources to 250 people, tracked in EPA SDWIS and UCMR5.

250
People served
244
EPA violations
148
Health-based
Untested
UCMR5 result

The verdict

EPA records 244 drinking-water violations at Blue Sky Heights Wua Clancy, 61% of them health-based - above the Montana per-system average.

244
Total EPA violations on record
61%
Health-based (MCL / treatment failure)
250
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Blue Sky Heights Wua Clancy

Blue Sky Heights Wua Clancy is a private-owned community water system that delivers drinking water to 250 residents in Clancy, Montana (Jefferson County) through 101 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 244 total violations for this system , of which 148 (61%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 86 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 Combined Uranium, recorded in 105 violations (MCL, health-based). 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, 28 of 45 UCMR5-tested systems have reported PFAS detections (62.2%).

Blue Sky Heights Wua Clancy's 244 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
250
Total Violations
244
Health-Based Violations
148
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
101
County
Jefferson
School/Daycare
No
MCL Violations
148
Monitoring Violations
86
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Uranium MCL 105 2015
Coliform (TCR) MCL 43 2015
Coliform (TCR) MR 33 2015
Combined Uranium MR 13 2020
E. COLI MR 13 2019
Revised Total Coliform Rule MON 13 2025
Consumer Confidence Rule Other 9 2025
Lead and Copper Rule MR 7 2023
Nitrate-Nitrite MR 7 2024

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 Blue Sky Heights Wua Clancy.

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 MT0000030 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
2025 Revised Total Coliform Rule MON 13 SDWIS / MT0000030 / 8000
2025 Consumer Confidence Rule Other 9 SDWIS / MT0000030 / 7000
2024 Nitrate-Nitrite MR 7 SDWIS / MT0000030 / 1038
2023 Lead and Copper Rule MR 7 SDWIS / MT0000030 / 5000
2020 Combined Uranium MR 13 SDWIS / MT0000030 / 4006
2019 E. COLI MR 13 SDWIS / MT0000030 / 3014
2015 Combined Uranium MCL 105 SDWIS / MT0000030 / 4006
2015 Coliform (TCR) MCL 43 SDWIS / MT0000030 / 3100
2015 Coliform (TCR) MR 33 SDWIS / MT0000030 / 3100

How Blue Sky Heights Wua Clancy Compares

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

Metric Blue Sky Heights Wua Clancy Montana avg Federal benchmark
Total violations 244 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 148 11.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 62.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 250 492 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 Blue Sky Heights Wua Clancy water safe to drink? ▼
Blue Sky Heights Wua Clancy (PWS ID: MT0000030) has 244 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 250 people using Groundwater sources.
How many people does Blue Sky Heights Wua Clancy serve? ▼
Blue Sky Heights Wua Clancy serves 250 people in Clancy, Montana. It is a Private-owned system using Groundwater water sources with 101 service connections.
What type of violations does Blue Sky Heights Wua Clancy have? ▼
Blue Sky Heights Wua Clancy has 244 total violations: 148 health-based violations (MCL exceedances or treatment failures), 86 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Blue Sky Heights Wua Clancy water? ▼
No PFAS testing data is available for Blue Sky Heights Wua Clancy under the EPA's UCMR5 monitoring program.
What water source does Blue Sky Heights Wua Clancy use? ▼
Blue Sky Heights Wua Clancy 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.