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Community Water System · PWS MT0002173

Riverside Water and Sewer Dist

Bozeman, Montana 59771 - drinking water served from groundwater sources to 344 people, tracked in EPA SDWIS and UCMR5.

344
People served
237
EPA violations
14
Health-based
Untested
UCMR5 result

The verdict

EPA records 237 drinking-water violations at Riverside Water and Sewer Dist, 6% of them health-based - above the Montana per-system average.

237
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
344
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Riverside Water and Sewer Dist

Riverside Water and Sewer Dist is a private-owned community water system that delivers drinking water to 344 residents in Bozeman, Montana (Gallatin County) through 126 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 237 total violations for this system , of which 14 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 217 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 48 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%).

Riverside Water and Sewer Dist's 237 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
344
Total Violations
237
Health-Based Violations
14
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
126
County
Gallatin
School/Daycare
No
MCL Violations
14
Monitoring Violations
217
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 48 2016
Lead and Copper Rule MR 28 2022
Coliform (TCR) MCL 14 2011
Nitrate MR 6 1999
Barium MR 6 1999
Cadmium MR 6 1999
Chromium MR 6 1999
Fluoride MR 6 1999
Mercury MR 6 1999
Antimony, Total MR 6 1999
Beryllium, Total MR 6 1999
Nickel MR 6 1999
Thallium, Total MR 6 1999
Selenium MR 6 1999
Arsenic MR 6 1999
Nitrate-Nitrite MR 6 2000
1,2,4-Trichlorobenzene MR 3 2005
cis-1,2-Dichloroethylene MR 3 2005
Xylenes, Total MR 3 2005
o-Dichlorobenzene MR 3 2005
Vinyl chloride MR 3 2005
1,1-Dichloroethylene MR 3 2005
trans-1,2-Dichloroethylene MR 3 2005
1,2-Dichloroethane MR 3 2005
Carbon tetrachloride MR 3 2005
1,2-Dichloropropane MR 3 2005
Tetrachloroethylene MR 3 2005
CHLOROBENZENE MR 3 2005
Benzene MR 3 2005
Ethylbenzene MR 3 2005

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 Riverside Water and 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 MT0002173 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
2022 Lead and Copper Rule MR 28 SDWIS / MT0002173 / 5000
2016 Coliform (TCR) MR 48 SDWIS / MT0002173 / 3100
2011 Coliform (TCR) MCL 14 SDWIS / MT0002173 / 3100
2005 1,2,4-Trichlorobenzene MR 3 SDWIS / MT0002173 / 2378
2005 cis-1,2-Dichloroethylene MR 3 SDWIS / MT0002173 / 2380
2005 Xylenes, Total MR 3 SDWIS / MT0002173 / 2955
2005 o-Dichlorobenzene MR 3 SDWIS / MT0002173 / 2968
2005 Vinyl chloride MR 3 SDWIS / MT0002173 / 2976
2005 1,1-Dichloroethylene MR 3 SDWIS / MT0002173 / 2977
2005 trans-1,2-Dichloroethylene MR 3 SDWIS / MT0002173 / 2979
2005 1,2-Dichloroethane MR 3 SDWIS / MT0002173 / 2980
2005 Carbon tetrachloride MR 3 SDWIS / MT0002173 / 2982
2005 1,2-Dichloropropane MR 3 SDWIS / MT0002173 / 2983
2005 Tetrachloroethylene MR 3 SDWIS / MT0002173 / 2987
2005 CHLOROBENZENE MR 3 SDWIS / MT0002173 / 2989

How Riverside Water and Sewer Dist Compares

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

Metric Riverside Water and Sewer Dist Montana avg Federal benchmark
Total violations 237 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 14 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 344 492 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 Riverside Water and Sewer Dist water safe to drink? ▼
Riverside Water and Sewer Dist (PWS ID: MT0002173) has 237 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 344 people using Groundwater sources.
How many people does Riverside Water and Sewer Dist serve? ▼
Riverside Water and Sewer Dist serves 344 people in Bozeman, Montana. It is a Private-owned system using Groundwater water sources with 126 service connections.
What type of violations does Riverside Water and Sewer Dist have? ▼
Riverside Water and Sewer Dist has 237 total violations: 14 health-based violations (MCL exceedances or treatment failures), 217 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Riverside Water and Sewer Dist water? ▼
No PFAS testing data is available for Riverside Water and Sewer Dist under the EPA's UCMR5 monitoring program.
What water source does Riverside Water and Sewer Dist use? ▼
Riverside Water and 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.