Transient Non-Community Water System · PWS WY5680108
Gtnp-Signal Mtn
Operator location Moose, Wyoming - 2% of 50 violations are health-based (middle-third health share (≤ 23%)); groundwater source; 1,514 served per SDWIS.
- 1,514
- People served (this PWS)
- 50
- EPA violations (this PWS)
- 1
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Gtnp-Signal Mtn standing, mid SDWIS violation third
2% of 50 recorded violations are health-based - middle-third health share (≤ 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 2% is middle-third health share (≤ 23%). Population rank #15,782 of 29,740 among systems serving 500+.
The verdict
Gtnp-Signal Mtn lands in the middle third by violation volume (50), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is mid-pack at 1,514 (mid served population (≤ 3,309)). Health-based share is 2% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #15,782 of 29,740
- Population · /systems
- #63 of 147
- Population · WY
- 50
- Total EPA violations on record
- 2%
- Health-based (MCL / treatment failure)
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
- Federal
- Connections
- 41
- County
- Teton
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 49
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| 1,1-Dichloroethylene | MR | 1 | 2018 |
| 1,2-Dichloropropane | MR | 1 | 2018 |
| Trichloroethylene | MR | 1 | 2018 |
| Tetrachloroethylene | MR | 1 | 2018 |
| Revised Total Coliform Rule | TT | 1 | 2017 |
| CHLOROBENZENE | MR | 1 | 2018 |
| Ethylbenzene | MR | 1 | 2018 |
| Styrene | MR | 1 | 2018 |
| Endrin | MR | 1 | 2018 |
| Dalapon | MR | 1 | 2018 |
| Endothall | MR | 1 | 2018 |
| Glyphosate | MR | 1 | 2018 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2018 |
| Simazine | MR | 1 | 2018 |
| Picloram | MR | 1 | 2018 |
| Hexachlorocyclopentadiene | MR | 1 | 2018 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2018 |
| Atrazine | MR | 1 | 2018 |
| LASSO | MR | 1 | 2018 |
| Heptachlor | MR | 1 | 2018 |
| Benzo(a)pyrene | MR | 1 | 2018 |
| cis-1,2-Dichloroethylene | MR | 1 | 2018 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2018 |
| ETHYLENE DIBROMIDE | MR | 1 | 2018 |
| DICHLOROMETHANE | MR | 1 | 2018 |
| p-Dichlorobenzene | MR | 1 | 2018 |
| Carbon tetrachloride | MR | 1 | 2018 |
| Toxaphene | MR | 1 | 2018 |
| trans-1,2-Dichloroethylene | MR | 1 | 2018 |
| 1,1,2-Trichloroethane | MR | 1 | 2018 |
Violation Count vs. the National Corpus
Gtnp-Signal Mtn has 50 recorded EPA violations, 56% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 43% carry more. 2% of this system's own violations are health-based (1 of 50), and it ranks #15,782 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
50 Around the middle fewer violations than 43% 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 Gtnp-Signal Mtn
1 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for WY5680108.
Sources: EPA SDWIS
Nationwide peers
50 violations · 1,514 served: nearest cross-state SDWIS matches.
Cross-state systems near this violation count
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Gtnp-Signal Mtn
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Wyoming compares on the same EPA violation measures. Wyoming 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.