Non-Transient Non-Community Water System · PWS WY5601056
Four J School Campbell Sch Dis
Operator location Gillette, Wyoming - smaller served population (≤ 999) at 50 people served; 46 SDWIS violations on record from groundwater sources.
- 50
- People served (this PWS)
- 46
- EPA violations (this PWS)
- 3
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Four J School Campbell Sch Dis standing, mid SDWIS violation third
50 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 7% is middle-third health share (≤ 23%).
The verdict
Four J School Campbell Sch Dis lands in the middle third by violation volume (46), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is smaller (50; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 7% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 46
- Total EPA violations on record
- 7%
- Health-based (MCL / treatment failure)
- 50
- 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
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 2
- County
- Campbell
- School/Daycare
- Yes
- MCL Violations
- 2
- Monitoring Violations
- 43
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 5 | 2007 |
| Total Haloacetic Acids (HAA5) | MR | 3 | 2004 |
| TTHM | MR | 3 | 2004 |
| Revised Total Coliform Rule | MON | 2 | 2016 |
| Coliform (TCR) | MR | 2 | 2003 |
| Coliform (TCR) | MCL | 2 | 1996 |
| Nitrate-Nitrite | MR | 2 | 2000 |
| BHC-GAMMA | MR | 1 | 2008 |
| Toxaphene | MR | 1 | 2008 |
| Dalapon | MR | 1 | 2008 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2008 |
| Simazine | MR | 1 | 2008 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 2008 |
| Picloram | MR | 1 | 2008 |
| Hexachlorocyclopentadiene | MR | 1 | 2008 |
| Atrazine | MR | 1 | 2008 |
| Heptachlor | MR | 1 | 2008 |
| 2,4-D | MR | 1 | 2008 |
| HEXACHLOROBENZENE | MR | 1 | 2008 |
| Benzo(a)pyrene | MR | 1 | 2008 |
| Pentachlorophenol | MR | 1 | 2008 |
| Total Polychlorinated Biphenyls (PCB) | MR | 1 | 2008 |
| ETHYLENE DIBROMIDE | MR | 1 | 2008 |
| Chlordane | MR | 1 | 2008 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2008 |
| Carbofuran | MR | 1 | 2008 |
| Dinoseb | MR | 1 | 2008 |
| Methoxychlor | MR | 1 | 2008 |
| OXAMYL | MR | 1 | 2008 |
| Revised Total Coliform Rule | TT | 1 | 2017 |
Violation Count vs. the National Corpus
Four J School Campbell Sch Dis has 46 recorded EPA violations, 54% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 45% carry more. 7% of this system's own violations are health-based (3 of 46), 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)
46 Around the middle fewer violations than 45% 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 Four J School Campbell Sch Dis
EPA SDWIS lists 50 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
46 violations · 50 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.
What to do with Four J School Campbell Sch Dis
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.