Transient Non-Community Water System · PWS MT0000331
Silver Gate Water Association Inc
Operator location Billings, Montana - 26% of 141 violations are health-based (upper-third health share (> 23%)); groundwater source; 40 served per SDWIS.
- 40
- People served (this PWS)
- 141
- EPA violations (this PWS)
- 36
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Silver Gate Water Association Inc standing, high SDWIS violation third
26% of 141 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 26% is upper-third health share (> 23%).
The verdict
Silver Gate Water Association Inc sits in the upper third of the sitemap cohort by violation count (141), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (40; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 26% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 141
- Total EPA violations on record
- 26%
- Health-based (MCL / treatment failure)
- 40
- 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
- 34
- County
- Park
- School/Daycare
- No
- MCL Violations
- 25
- Monitoring Violations
- 103
- Treatment Tech Violations
- 11
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 66 | 2015 |
| Coliform (TCR) | MCL | 25 | 2002 |
| Revised Total Coliform Rule | MON | 15 | 2025 |
| Lead and Copper Rule | MR | 8 | 1999 |
| Nitrate | MR | 7 | 1999 |
| Nitrate-Nitrite | MR | 7 | 2014 |
| Revised Total Coliform Rule | TT | 6 | 2022 |
| Surface Water Treatment Rule | TT | 5 | 2011 |
| Consumer Confidence Rule | Other | 2 | 1999 |
Violation Count vs. the National Corpus
Silver Gate Water Association Inc has 141 recorded EPA violations, 80% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 20% carry more. 26% of this system's own violations are health-based (36 of 141), 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)
141 Higher than most more violations than 80% 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 Silver Gate Water Association Inc
36 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for MT0000331.
Sources: EPA SDWIS
Nationwide peers
141 violations · 40 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 Silver Gate Water Association Inc
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.