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Community Water System · PWS MT0004150

Foys Lakeside Estates Water & Sewer Dist

Kalispell, Montana 59901 - drinking water served from groundwater sources to 36 people, tracked in EPA SDWIS and UCMR5.

36
People served
74
EPA violations
5
Health-based
Untested
UCMR5 result

The verdict

EPA records 74 drinking-water violations at Foys Lakeside Estates Water & Sewer Dist, 7% of them health-based - below the Montana per-system average.

74
Total EPA violations on record
7%
Health-based (MCL / treatment failure)
36
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Foys Lakeside Estates Water & Sewer Dist

Foys Lakeside Estates Water & Sewer Dist is a local-owned community water system that delivers drinking water to 36 residents in Kalispell, Montana (Flathead County) through 17 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 74 total violations for this system , of which 5 (7%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 69 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 Lead and Copper Rule, recorded in 63 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%).

Foys Lakeside Estates Water & Sewer Dist's 74 violations sit below 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
36
Total Violations
74
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
17
County
Flathead
School/Daycare
No
MCL Violations
0
Monitoring Violations
69
Treatment Tech Violations
5

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 63 2010
Lead and Copper Rule TT 5 2001
Asbestos MR 3 2020
Coliform (TCR) MR 3 2003

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 Foys Lakeside Estates Water & Sewer Dist.

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 MT0004150 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 Asbestos MR 3 SDWIS / MT0004150 / 1094
2010 Lead and Copper Rule MR 63 SDWIS / MT0004150 / 5000
2003 Coliform (TCR) MR 3 SDWIS / MT0004150 / 3100
2001 Lead and Copper Rule TT 5 SDWIS / MT0004150 / 5000

How Foys Lakeside Estates Water & Sewer Dist Compares

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

Metric Foys Lakeside Estates Water & Sewer Dist Montana avg Federal benchmark
Total violations 74 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 5 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 36 492 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 Foys Lakeside Estates Water & Sewer Dist water safe to drink? ▼
Foys Lakeside Estates Water & Sewer Dist (PWS ID: MT0004150) has 74 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 36 people using Groundwater sources.
How many people does Foys Lakeside Estates Water & Sewer Dist serve? ▼
Foys Lakeside Estates Water & Sewer Dist serves 36 people in Kalispell, Montana. It is a Local-owned system using Groundwater water sources with 17 service connections.
What type of violations does Foys Lakeside Estates Water & Sewer Dist have? ▼
Foys Lakeside Estates Water & Sewer Dist has 74 total violations: 5 health-based violations (MCL exceedances or treatment failures), 69 monitoring/reporting violations, and 5 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Foys Lakeside Estates Water & Sewer Dist water? ▼
No PFAS testing data is available for Foys Lakeside Estates Water & Sewer Dist under the EPA's UCMR5 monitoring program.
What water source does Foys Lakeside Estates Water & Sewer Dist use? ▼
Foys Lakeside Estates Water & Sewer Dist 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.