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Community Water System · PWS MT0004187

Golden Estates Homeowners Association

East Helena, Montana 59635 - drinking water served from groundwater sources to 400 people, tracked in EPA SDWIS and UCMR5.

400
People served
357
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 357 drinking-water violations at Golden Estates Homeowners Association - above the Montana per-system average.

357
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
400
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Golden Estates Homeowners Association

Golden Estates Homeowners Association is a private-owned community water system that delivers drinking water to 400 residents in East Helena, Montana (Lewis and Clark County) through 84 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 357 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 342 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 36 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%).

Golden Estates Homeowners Association's 357 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
400
Total Violations
357
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
84
County
Lewis and Clark
School/Daycare
No
MCL Violations
0
Monitoring Violations
342
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 36 2014
1,2-Dichloropropane MR 12 2005
1,1,2-Trichloroethane MR 12 2005
CHLOROBENZENE MR 12 2005
Styrene MR 12 2005
1,2,4-Trichlorobenzene MR 12 2005
DICHLOROMETHANE MR 12 2005
Vinyl chloride MR 12 2005
1,1-Dichloroethylene MR 12 2005
1,1,1-Trichloroethane MR 12 2005
Carbon tetrachloride MR 12 2005
Tetrachloroethylene MR 12 2005
Benzene MR 12 2005
cis-1,2-Dichloroethylene MR 12 2005
Xylenes, Total MR 12 2005
trans-1,2-Dichloroethylene MR 12 2005
Trichloroethylene MR 12 2005
Toluene MR 12 2005
Ethylbenzene MR 12 2005
o-Dichlorobenzene MR 12 2005
p-Dichlorobenzene MR 12 2005
1,2-Dichloroethane MR 12 2005
Gross Alpha, Excl. Radon and U MR 8 2011
Consumer Confidence Rule Other 7 2014
E. COLI MR 7 2023
Coliform (TCR) MR 3 2005
Aldicarb sulfoxide MR 3 2005
Aldicarb MR 3 2005
Picloram MR 3 2005
Dalapon MR 3 2005

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 Golden Estates Homeowners Association.

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 MT0004187 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
2023 E. COLI MR 7 SDWIS / MT0004187 / 3014
2014 Lead and Copper Rule MR 36 SDWIS / MT0004187 / 5000
2014 Consumer Confidence Rule Other 7 SDWIS / MT0004187 / 7000
2011 Gross Alpha, Excl. Radon and U MR 8 SDWIS / MT0004187 / 4000
2005 1,2-Dichloropropane MR 12 SDWIS / MT0004187 / 2983
2005 1,1,2-Trichloroethane MR 12 SDWIS / MT0004187 / 2985
2005 CHLOROBENZENE MR 12 SDWIS / MT0004187 / 2989
2005 Styrene MR 12 SDWIS / MT0004187 / 2996
2005 1,2,4-Trichlorobenzene MR 12 SDWIS / MT0004187 / 2378
2005 DICHLOROMETHANE MR 12 SDWIS / MT0004187 / 2964
2005 Vinyl chloride MR 12 SDWIS / MT0004187 / 2976
2005 1,1-Dichloroethylene MR 12 SDWIS / MT0004187 / 2977
2005 1,1,1-Trichloroethane MR 12 SDWIS / MT0004187 / 2981
2005 Carbon tetrachloride MR 12 SDWIS / MT0004187 / 2982
2005 Tetrachloroethylene MR 12 SDWIS / MT0004187 / 2987

How Golden Estates Homeowners Association Compares

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

Metric Golden Estates Homeowners Association Montana avg Federal benchmark
Total violations 357 131.4 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 62.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 400 492 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 Golden Estates Homeowners Association water safe to drink? ▼
Golden Estates Homeowners Association (PWS ID: MT0004187) has 357 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 400 people using Groundwater sources.
How many people does Golden Estates Homeowners Association serve? ▼
Golden Estates Homeowners Association serves 400 people in East Helena, Montana. It is a Private-owned system using Groundwater water sources with 84 service connections.
What type of violations does Golden Estates Homeowners Association have? ▼
Golden Estates Homeowners Association has 357 total violations: 0 health-based violations (MCL exceedances or treatment failures), 342 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Golden Estates Homeowners Association water? ▼
No PFAS testing data is available for Golden Estates Homeowners Association under the EPA's UCMR5 monitoring program.
What water source does Golden Estates Homeowners Association use? ▼
Golden Estates Homeowners Association 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.