PlainWater
States → Montana

Transient Non-Community Water System · PWS MT0000713

Missouri River Bar and Grill

Cascade, Montana 59421 - drinking water served from groundwater sources to 512 people, tracked in EPA SDWIS and UCMR5.

512
People served
162
EPA violations
32
Health-based
Untested
UCMR5 result

The verdict

EPA records 162 drinking-water violations at Missouri River Bar and Grill, 20% of them health-based - above the Montana per-system average.

162
Total EPA violations on record
20%
Health-based (MCL / treatment failure)
512
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Missouri River Bar and Grill

Missouri River Bar and Grill is a private-owned transient non-community water system that delivers drinking water to 512 residents in Cascade, Montana (Cascade County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 162 total violations for this system , of which 32 (20%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 128 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 Coliform (TCR), recorded in 120 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%).

Missouri River Bar and Grill's 162 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
512
Total Violations
162
Health-Based Violations
32
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
1
County
Cascade
School/Daycare
No
MCL Violations
26
Monitoring Violations
128
Treatment Tech Violations
6

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 120 2015
Coliform (TCR) MCL 26 2012
Groundwater Rule TT 6 2011
Nitrate MR 3 1996
Nitrate-Nitrite MR 3 2014
Revised Total Coliform Rule MON 2 2025

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 Missouri River Bar and Grill.

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 MT0000713 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 Revised Total Coliform Rule MON 2 SDWIS / MT0000713 / 8000
2015 Coliform (TCR) MR 120 SDWIS / MT0000713 / 3100
2014 Nitrate-Nitrite MR 3 SDWIS / MT0000713 / 1038
2012 Coliform (TCR) MCL 26 SDWIS / MT0000713 / 3100
2011 Groundwater Rule TT 6 SDWIS / MT0000713 / 0700
1996 Nitrate MR 3 SDWIS / MT0000713 / 1040

How Missouri River Bar and Grill Compares

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

Metric Missouri River Bar and Grill Montana avg Federal benchmark
Total violations 162 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 32 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 512 492 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 Missouri River Bar and Grill water safe to drink? ▼
Missouri River Bar and Grill (PWS ID: MT0000713) has 162 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 512 people using Groundwater sources.
How many people does Missouri River Bar and Grill serve? ▼
Missouri River Bar and Grill serves 512 people in Cascade, Montana. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Missouri River Bar and Grill have? ▼
Missouri River Bar and Grill has 162 total violations: 32 health-based violations (MCL exceedances or treatment failures), 128 monitoring/reporting violations, and 6 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Missouri River Bar and Grill water? ▼
No PFAS testing data is available for Missouri River Bar and Grill under the EPA's UCMR5 monitoring program.
What water source does Missouri River Bar and Grill use? ▼
Missouri River Bar and Grill uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.