Transient Non-Community Water System · PWS MT0004749
Plains Alliance Church
Operator location Plains, Montana - smaller served population (≤ 999) at 27 people served; 85 SDWIS violations on record from groundwater sources.
- 27
- People served (this PWS)
- 85
- EPA violations (this PWS)
- 16
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Plains Alliance Church standing, high SDWIS violation third
27 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 19% is middle-third health share (≤ 23%).
The verdict
Plains Alliance Church sits in the upper third of the sitemap cohort by violation count (85), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (27; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 19% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 85
- Total EPA violations on record
- 19%
- Health-based (MCL / treatment failure)
- 27
- 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
- Transient Non-Community
- Owner Type
- Private
- Connections
- 2
- County
- Sanders
- School/Daycare
- No
- MCL Violations
- 6
- Monitoring Violations
- 69
- Treatment Tech Violations
- 10
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Groundwater Rule | MR | 41 | 2025 |
| Coliform (TCR) | MR | 15 | 2012 |
| Groundwater Rule | TT | 10 | 2025 |
| Revised Total Coliform Rule | MON | 9 | 2025 |
| Coliform (TCR) | MCL | 6 | 2011 |
| Nitrate-Nitrite | MR | 4 | 2020 |
Violation Count vs. the National Corpus
Plains Alliance Church has 85 recorded EPA violations, 70% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 30% carry more. 19% of this system's own violations are health-based (16 of 85), 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)
85 Around the middle fewer violations than 30% 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
Population served record for Plains Alliance Church
EPA SDWIS lists 27 people served and 2 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS
Nationwide peers
85 violations · 27 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.
What to do with Plains Alliance Church
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.