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Community Water System · PWS MT0004765

Fort Smith Water and Sewer District

Operator location Fort Smith, Montana - 0% of 830 violations are health-based (lower-third health share (≤ 1%)); groundwater source; 450 served per SDWIS.

450
People served (this PWS)
830
EPA violations (this PWS)
0
Health-based (this PWS)
Untested
UCMR5 (this PWS)
Follow published updates (RSS)

Fort Smith Water and Sewer District standing, high SDWIS violation third

0% of 830 recorded violations are health-based - lower-third health share (≤ 1%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 0% is lower-third health share (≤ 1%).

The verdict

Fort Smith Water and Sewer District sits in the upper third of the sitemap cohort by violation count (830), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (450; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is only 0% - almost all of this trail is monitoring or reporting. No UCMR5 PFAS test appears for this system in this extract.

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

Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.

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

Violation Count vs. the National Corpus

Fort Smith Water and Sewer District has 830 recorded EPA violations, 98% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 2% carry more. 0% of this system's own violations are health-based (0 of 830), and it ranks unranked by population served among that same cohort.

EPA violations vs. the national water-system corpus

Public water systems serving 500+ people (EPA SDWIS)

830 Higher than most more violations than 98% of 29,740 water systems

the national water-system corpus, bucketed by value

Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source EPA SDWIS · 2026-05-15

Health-based violations on Fort Smith Water and Sewer District

0 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for MT0004765.

Sources: EPA SDWIS

Nationwide peers

830 violations · 450 served: nearest cross-state SDWIS matches.

Cross-state systems with comparable violation load

Nearest cross-state community systems (500+ served) by total SDWIS violations on record.

4 peers

What to do with Fort Smith Water and Sewer District

Use this system's EPA-reported record as a starting filter, not a final verdict.

  • See how every tracked system in Montana compares on the same EPA violation measures. Montana systems
  • Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
  • Find and compare another public water system by name or PWSID. Search systems

EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater