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Community Water System · PWS MT0000590

Helena Leisure LLC

Helena, Montana 59602 - drinking water served from groundwater sources to 1,200 people, tracked in EPA SDWIS and UCMR5.

1,200
People served
1,336
EPA violations
1
Health-based
Untested
UCMR5 result

The verdict

EPA records 1,336 drinking-water violations at Helena Leisure LLC - above the Montana per-system average.

1,336
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
1,200
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Helena Leisure LLC

Helena Leisure LLC is a private-owned community water system that delivers drinking water to 1,200 residents in Helena, Montana (Lewis and Clark County) through 383 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 1,336 total violations for this system , of which 1 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 1,327 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Dalapon, recorded in 40 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, 28 of 45 UCMR5-tested systems have reported PFAS detections (62.2%).

Helena Leisure LLC's 1,336 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
1,200
Total Violations
1,336
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
383
County
Lewis and Clark
School/Daycare
No
MCL Violations
1
Monitoring Violations
1,327
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Dalapon MR 40 2021
1,2,4-Trichlorobenzene MR 34 2020
cis-1,2-Dichloroethylene MR 34 2020
o-Dichlorobenzene MR 34 2020
p-Dichlorobenzene MR 34 2020
Vinyl chloride MR 34 2020
1,1-Dichloroethylene MR 34 2020
trans-1,2-Dichloroethylene MR 34 2020
1,2-Dichloroethane MR 34 2020
Carbon tetrachloride MR 34 2020
1,1,2-Trichloroethane MR 34 2020
Tetrachloroethylene MR 34 2020
Benzene MR 34 2020
Toluene MR 34 2020
DICHLOROMETHANE MR 34 2020
Trichloroethylene MR 34 2020
CHLOROBENZENE MR 34 2020
Ethylbenzene MR 34 2020
Styrene MR 34 2020
1,1,1-Trichloroethane MR 34 2020
1,2-Dichloropropane MR 34 2020
Xylenes, Total MR 34 2020
BHC-GAMMA MR 23 2021
Toxaphene MR 23 2021
Di(2-ethylhexyl) adipate MR 23 2021
OXAMYL MR 23 2021
Simazine MR 23 2021
Di(2-ethylhexyl) phthalate MR 23 2021
Picloram MR 23 2021
Dinoseb MR 23 2021

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 Helena Leisure LLC.

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 MT0000590 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
2024 Lead and Copper Rule MR 6 SDWIS / MT0000590 / 5000
2023 Revised Total Coliform Rule MON 3 SDWIS / MT0000590 / 8000
2021 Dalapon MR 40 SDWIS / MT0000590 / 2031
2021 BHC-GAMMA MR 23 SDWIS / MT0000590 / 2010
2021 Toxaphene MR 23 SDWIS / MT0000590 / 2020
2021 Di(2-ethylhexyl) adipate MR 23 SDWIS / MT0000590 / 2035
2021 OXAMYL MR 23 SDWIS / MT0000590 / 2036
2021 Simazine MR 23 SDWIS / MT0000590 / 2037
2021 Di(2-ethylhexyl) phthalate MR 23 SDWIS / MT0000590 / 2039
2021 Picloram MR 23 SDWIS / MT0000590 / 2040
2021 Dinoseb MR 23 SDWIS / MT0000590 / 2041
2021 Carbofuran MR 23 SDWIS / MT0000590 / 2046
2021 Atrazine MR 23 SDWIS / MT0000590 / 2050
2021 Heptachlor MR 23 SDWIS / MT0000590 / 2065
2021 Heptachlor epoxide MR 23 SDWIS / MT0000590 / 2067

How Helena Leisure LLC Compares

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

Metric Helena Leisure LLC Montana avg Federal benchmark
Total violations 1,336 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 1 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 1,200 492 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 Helena Leisure LLC water safe to drink? ▼
Helena Leisure LLC (PWS ID: MT0000590) has 1336 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,200 people using Groundwater sources.
How many people does Helena Leisure LLC serve? ▼
Helena Leisure LLC serves 1,200 people in Helena, Montana. It is a Private-owned system using Groundwater water sources with 383 service connections.
What type of violations does Helena Leisure LLC have? ▼
Helena Leisure LLC has 1,336 total violations: 1 health-based violations (MCL exceedances or treatment failures), 1,327 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Helena Leisure LLC water? ▼
No PFAS testing data is available for Helena Leisure LLC under the EPA's UCMR5 monitoring program.
What water source does Helena Leisure LLC use? ▼
Helena Leisure LLC 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.