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Community Water System · PWS MT0004765

Fort Smith Water and Sewer District

Fort Smith, Montana 59035 - drinking water served from groundwater sources to 450 people, tracked in EPA SDWIS and UCMR5.

450
People served
830
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 830 drinking-water violations at Fort Smith Water and Sewer District - above the Montana per-system average.

830
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
450
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Fort Smith Water and Sewer District

Fort Smith Water and Sewer District is a local-owned community water system that delivers drinking water to 450 residents in Fort Smith, Montana (Big Horn County) through 212 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 830 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 820 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 Dalapon, 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, 28 of 45 UCMR5-tested systems have reported PFAS detections (62.2%).

Fort Smith Water and Sewer District's 830 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
450
Total Violations
830
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
212
County
Big Horn
School/Daycare
No
MCL Violations
0
Monitoring Violations
820
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Dalapon MR 18 2013
Pentachlorophenol MR 18 2013
Chlordane MR 18 2013
Di(2-ethylhexyl) adipate MR 18 2013
Endrin MR 18 2013
Simazine MR 18 2013
BHC-GAMMA MR 18 2013
Toxaphene MR 18 2013
Di(2-ethylhexyl) phthalate MR 18 2013
Picloram MR 18 2013
Dinoseb MR 18 2013
Hexachlorocyclopentadiene MR 18 2013
Aldicarb MR 18 2013
Atrazine MR 18 2013
Heptachlor epoxide MR 18 2013
2,4-D MR 18 2013
Benzo(a)pyrene MR 18 2013
Methoxychlor MR 18 2013
Aldicarb sulfoxide MR 18 2013
OXAMYL MR 18 2013
Aldicarb sulfone MR 18 2013
Carbofuran MR 18 2013
LASSO MR 18 2013
HEXACHLOROBENZENE MR 18 2013
Heptachlor MR 18 2013
2,4,5-TP MR 18 2013
1,2,4-Trichlorobenzene MR 14 2013
DICHLOROMETHANE MR 14 2013
1,1,1-Trichloroethane MR 14 2013
Carbon tetrachloride MR 14 2013

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 Fort Smith Water and Sewer District.

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 MT0004765 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 Consumer Confidence Rule Other 10 SDWIS / MT0004765 / 7000
2018 Revised Total Coliform Rule MON 6 SDWIS / MT0004765 / 8000
2016 Coliform (TCR) MR 12 SDWIS / MT0004765 / 3100
2013 Dalapon MR 18 SDWIS / MT0004765 / 2031
2013 Pentachlorophenol MR 18 SDWIS / MT0004765 / 2326
2013 Chlordane MR 18 SDWIS / MT0004765 / 2959
2013 Di(2-ethylhexyl) adipate MR 18 SDWIS / MT0004765 / 2035
2013 Endrin MR 18 SDWIS / MT0004765 / 2005
2013 Simazine MR 18 SDWIS / MT0004765 / 2037
2013 BHC-GAMMA MR 18 SDWIS / MT0004765 / 2010
2013 Toxaphene MR 18 SDWIS / MT0004765 / 2020
2013 Di(2-ethylhexyl) phthalate MR 18 SDWIS / MT0004765 / 2039
2013 Picloram MR 18 SDWIS / MT0004765 / 2040
2013 Dinoseb MR 18 SDWIS / MT0004765 / 2041
2013 Hexachlorocyclopentadiene MR 18 SDWIS / MT0004765 / 2042

How Fort Smith Water and Sewer District Compares

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

Metric Fort Smith Water and Sewer District Montana avg Federal benchmark
Total violations 830 131.4 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 62.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 450 492 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 Fort Smith Water and Sewer District water safe to drink? ▼
Fort Smith Water and Sewer District (PWS ID: MT0004765) has 830 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 450 people using Groundwater sources.
How many people does Fort Smith Water and Sewer District serve? ▼
Fort Smith Water and Sewer District serves 450 people in Fort Smith, Montana. It is a Local-owned system using Groundwater water sources with 212 service connections.
What type of violations does Fort Smith Water and Sewer District have? ▼
Fort Smith Water and Sewer District has 830 total violations: 0 health-based violations (MCL exceedances or treatment failures), 820 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Fort Smith Water and Sewer District water? ▼
No PFAS testing data is available for Fort Smith Water and Sewer District under the EPA's UCMR5 monitoring program.
What water source does Fort Smith Water and Sewer District use? ▼
Fort Smith Water and Sewer District 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.