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Community Water System · PWS MT0003736

Barnaby Lake HOA

Fortine, Montana 59918 - drinking water served from groundwater sources to 75 people, tracked in EPA SDWIS and UCMR5.

75
People served
249
EPA violations
36
Health-based
Untested
UCMR5 result

The verdict

EPA records 249 drinking-water violations at Barnaby Lake HOA, 14% of them health-based - above the Montana per-system average.

249
Total EPA violations on record
14%
Health-based (MCL / treatment failure)
75
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Barnaby Lake HOA

Barnaby Lake HOA is a private-owned community water system that delivers drinking water to 75 residents in Fortine, Montana (Lincoln County) through 37 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 249 total violations for this system , of which 36 (14%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 209 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 Coliform (TCR), recorded in 34 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%).

Barnaby Lake HOA's 249 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
75
Total Violations
249
Health-Based Violations
36
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
37
County
Lincoln
School/Daycare
No
MCL Violations
34
Monitoring Violations
209
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 34 2011
Coliform (TCR) MR 7 2015
Consumer Confidence Rule Other 4 2009
Lead and Copper Rule MR 4 2014
1,2,4-Trichlorobenzene MR 3 1999
cis-1,2-Dichloroethylene MR 3 1999
Xylenes, Total MR 3 1999
Vinyl chloride MR 3 1999
trans-1,2-Dichloroethylene MR 3 1999
Carbon tetrachloride MR 3 1999
Trichloroethylene MR 3 1999
Ethylbenzene MR 3 1999
Endrin MR 3 1999
Methoxychlor MR 3 1999
Toxaphene MR 3 1999
Dalapon MR 3 1999
Diquat MR 3 1999
Di(2-ethylhexyl) adipate MR 3 1999
Simazine MR 3 1999
Di(2-ethylhexyl) phthalate MR 3 1999
Picloram MR 3 1999
Aldicarb sulfone MR 3 1999
2,3,7,8-TCDD MR 3 1999
Heptachlor MR 3 1999
Heptachlor epoxide MR 3 1999
2,4,5-TP MR 3 1999
HEXACHLOROBENZENE MR 3 1999
Benzo(a)pyrene MR 3 1999
Total Polychlorinated Biphenyls (PCB) MR 3 1999
Chlordane MR 3 1999

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 Barnaby Lake HOA.

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 MT0003736 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 Revised Total Coliform Rule MON 3 SDWIS / MT0003736 / 8000
2015 Coliform (TCR) MR 7 SDWIS / MT0003736 / 3100
2014 Lead and Copper Rule MR 4 SDWIS / MT0003736 / 5000
2011 Coliform (TCR) MCL 34 SDWIS / MT0003736 / 3100
2011 Asbestos MR 2 SDWIS / MT0003736 / 1094
2009 Consumer Confidence Rule Other 4 SDWIS / MT0003736 / 7000
2003 Lead and Copper Rule TT 2 SDWIS / MT0003736 / 5000
1999 1,2,4-Trichlorobenzene MR 3 SDWIS / MT0003736 / 2378
1999 cis-1,2-Dichloroethylene MR 3 SDWIS / MT0003736 / 2380
1999 Xylenes, Total MR 3 SDWIS / MT0003736 / 2955
1999 Vinyl chloride MR 3 SDWIS / MT0003736 / 2976
1999 trans-1,2-Dichloroethylene MR 3 SDWIS / MT0003736 / 2979
1999 Carbon tetrachloride MR 3 SDWIS / MT0003736 / 2982
1999 Trichloroethylene MR 3 SDWIS / MT0003736 / 2984
1999 Ethylbenzene MR 3 SDWIS / MT0003736 / 2992

How Barnaby Lake HOA Compares

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

Metric Barnaby Lake HOA Montana avg Federal benchmark
Total violations 249 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 36 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 75 492 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 Barnaby Lake HOA water safe to drink?
Barnaby Lake HOA (PWS ID: MT0003736) has 249 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 75 people using Groundwater sources.
How many people does Barnaby Lake HOA serve?
Barnaby Lake HOA serves 75 people in Fortine, Montana. It is a Private-owned system using Groundwater water sources with 37 service connections.
What type of violations does Barnaby Lake HOA have?
Barnaby Lake HOA has 249 total violations: 36 health-based violations (MCL exceedances or treatment failures), 209 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Barnaby Lake HOA water?
No PFAS testing data is available for Barnaby Lake HOA under the EPA's UCMR5 monitoring program.
What water source does Barnaby Lake HOA use?
Barnaby Lake HOA 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.
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.