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Community Water System · PWS MT0000374

Bair Clark Properties, LLC

Missoula, Montana 59801 - drinking water served from groundwater sources to 180 people, tracked in EPA SDWIS and UCMR5.

180
People served
726
EPA violations
12
Health-based
Untested
UCMR5 result

The verdict

EPA records 726 drinking-water violations at Bair Clark Properties, LLC, 2% of them health-based - above the Montana per-system average.

726
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
180
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Bair Clark Properties, LLC

Bair Clark Properties, LLC is a private-owned community water system that delivers drinking water to 180 residents in Missoula, Montana (Missoula County) through 53 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 726 total violations for this system , of which 12 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 704 monitoring and reporting violations are on file. The most recent violation on record dates to 2017.

The most frequently cited contaminant at this system is Toxaphene, recorded in 12 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%).

Bair Clark Properties, LLC's 726 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
180
Total Violations
726
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
53
County
Missoula
School/Daycare
No
MCL Violations
7
Monitoring Violations
704
Treatment Tech Violations
5

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Toxaphene MR 12 2016
Di(2-ethylhexyl) adipate MR 12 2016
Simazine MR 12 2016
Di(2-ethylhexyl) phthalate MR 12 2016
Picloram MR 12 2016
Aldicarb MR 12 2016
Heptachlor MR 12 2016
Heptachlor epoxide MR 12 2016
2,4-D MR 12 2016
HEXACHLOROBENZENE MR 12 2016
Benzo(a)pyrene MR 12 2016
Pentachlorophenol MR 12 2016
Chlordane MR 12 2016
Methoxychlor MR 12 2016
OXAMYL MR 12 2016
Dinoseb MR 12 2016
Aldicarb sulfoxide MR 12 2016
Aldicarb sulfone MR 12 2016
2,4,5-TP MR 12 2016
1,2,4-Trichlorobenzene MR 12 2014
cis-1,2-Dichloroethylene MR 12 2014
Xylenes, Total MR 12 2014
DICHLOROMETHANE MR 12 2014
o-Dichlorobenzene MR 12 2014
Vinyl chloride MR 12 2014
1,1-Dichloroethylene MR 12 2014
1,2-Dichloropropane MR 12 2014
Trichloroethylene MR 12 2014
1,1,2-Trichloroethane MR 12 2014
CHLOROBENZENE MR 12 2014

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 Bair Clark Properties, 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 MT0000374 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
2017 Lead and Copper Rule MR 7 SDWIS / MT0000374 / 5000
2016 Toxaphene MR 12 SDWIS / MT0000374 / 2020
2016 Di(2-ethylhexyl) adipate MR 12 SDWIS / MT0000374 / 2035
2016 Simazine MR 12 SDWIS / MT0000374 / 2037
2016 Di(2-ethylhexyl) phthalate MR 12 SDWIS / MT0000374 / 2039
2016 Picloram MR 12 SDWIS / MT0000374 / 2040
2016 Aldicarb MR 12 SDWIS / MT0000374 / 2047
2016 Heptachlor MR 12 SDWIS / MT0000374 / 2065
2016 Heptachlor epoxide MR 12 SDWIS / MT0000374 / 2067
2016 2,4-D MR 12 SDWIS / MT0000374 / 2105
2016 HEXACHLOROBENZENE MR 12 SDWIS / MT0000374 / 2274
2016 Benzo(a)pyrene MR 12 SDWIS / MT0000374 / 2306
2016 Pentachlorophenol MR 12 SDWIS / MT0000374 / 2326
2016 Chlordane MR 12 SDWIS / MT0000374 / 2959
2016 Methoxychlor MR 12 SDWIS / MT0000374 / 2015

How Bair Clark Properties, LLC Compares

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

Metric Bair Clark Properties, LLC Montana avg Federal benchmark
Total violations 726 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 12 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 180 492 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 Bair Clark Properties, LLC water safe to drink? ▼
Bair Clark Properties, LLC (PWS ID: MT0000374) has 726 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 180 people using Groundwater sources.
How many people does Bair Clark Properties, LLC serve? ▼
Bair Clark Properties, LLC serves 180 people in Missoula, Montana. It is a Private-owned system using Groundwater water sources with 53 service connections.
What type of violations does Bair Clark Properties, LLC have? ▼
Bair Clark Properties, LLC has 726 total violations: 12 health-based violations (MCL exceedances or treatment failures), 704 monitoring/reporting violations, and 5 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Bair Clark Properties, LLC water? ▼
No PFAS testing data is available for Bair Clark Properties, LLC under the EPA's UCMR5 monitoring program.
What water source does Bair Clark Properties, LLC use? ▼
Bair Clark Properties, 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.