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States → Montana

Community Water System · PWS MT0005006

B & M Zoo Subdivision

Missoula, Montana 59801 - drinking water served from groundwater sources to 25 people, tracked in EPA SDWIS and UCMR5.

25
People served
346
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 346 drinking-water violations at B & M Zoo Subdivision - above the Montana per-system average.

346
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
25
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: B & M Zoo Subdivision

B & M Zoo Subdivision is a private-owned community water system that delivers drinking water to 25 residents in Missoula, Montana (Missoula County) through 11 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 346 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 346 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Nitrate-Nitrite, recorded in 18 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%).

B & M Zoo Subdivision's 346 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
25
Total Violations
346
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
11
County
Missoula
School/Daycare
No
MCL Violations
0
Monitoring Violations
346
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate-Nitrite MR 18 2025
BHC-GAMMA MR 14 2022
Methoxychlor MR 14 2022
Dalapon MR 14 2022
Di(2-ethylhexyl) adipate MR 14 2022
OXAMYL MR 14 2022
Simazine MR 14 2022
Picloram MR 14 2022
Dinoseb MR 14 2022
Hexachlorocyclopentadiene MR 14 2022
Carbofuran MR 14 2022
Atrazine MR 14 2022
LASSO MR 14 2022
Heptachlor MR 14 2022
Heptachlor epoxide MR 14 2022
2,4-D MR 14 2022
2,4,5-TP MR 14 2022
HEXACHLOROBENZENE MR 14 2022
Pentachlorophenol MR 14 2022
Endrin MR 14 2022
Toxaphene MR 14 2022
Di(2-ethylhexyl) phthalate MR 14 2022
Benzo(a)pyrene MR 14 2022
Chlordane MR 14 2022
Lead and Copper Rule MR 3 2024
Revised Total Coliform Rule MON 3 2022

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 B & M Zoo Subdivision.

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 MT0005006 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
2025 Nitrate-Nitrite MR 18 SDWIS / MT0005006 / 1038
2024 Lead and Copper Rule MR 3 SDWIS / MT0005006 / 5000
2022 BHC-GAMMA MR 14 SDWIS / MT0005006 / 2010
2022 Methoxychlor MR 14 SDWIS / MT0005006 / 2015
2022 Dalapon MR 14 SDWIS / MT0005006 / 2031
2022 Di(2-ethylhexyl) adipate MR 14 SDWIS / MT0005006 / 2035
2022 OXAMYL MR 14 SDWIS / MT0005006 / 2036
2022 Simazine MR 14 SDWIS / MT0005006 / 2037
2022 Picloram MR 14 SDWIS / MT0005006 / 2040
2022 Dinoseb MR 14 SDWIS / MT0005006 / 2041
2022 Hexachlorocyclopentadiene MR 14 SDWIS / MT0005006 / 2042
2022 Carbofuran MR 14 SDWIS / MT0005006 / 2046
2022 Atrazine MR 14 SDWIS / MT0005006 / 2050
2022 LASSO MR 14 SDWIS / MT0005006 / 2051
2022 Heptachlor MR 14 SDWIS / MT0005006 / 2065

How B & M Zoo Subdivision Compares

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

Metric B & M Zoo Subdivision Montana avg Federal benchmark
Total violations 346 131.4 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 11.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 25 492 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 B & M Zoo Subdivision water safe to drink? ▼
B & M Zoo Subdivision (PWS ID: MT0005006) has 346 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 25 people using Groundwater sources.
How many people does B & M Zoo Subdivision serve? ▼
B & M Zoo Subdivision serves 25 people in Missoula, Montana. It is a Private-owned system using Groundwater water sources with 11 service connections.
What type of violations does B & M Zoo Subdivision have? ▼
B & M Zoo Subdivision has 346 total violations: 0 health-based violations (MCL exceedances or treatment failures), 346 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in B & M Zoo Subdivision water? ▼
No PFAS testing data is available for B & M Zoo Subdivision under the EPA's UCMR5 monitoring program.
What water source does B & M Zoo Subdivision use? ▼
B & M Zoo Subdivision 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.