Community Water System · PWS CT0400041
Gqc Well Commission
Operator location Vernon, Connecticut - 25% of 340 violations are health-based (upper-third health share (> 23%)); groundwater source; 360 served per SDWIS.
- 360
- People served (this PWS)
- 340
- EPA violations (this PWS)
- 85
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Gqc Well Commission standing, high SDWIS violation third
25% of 340 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 25% is upper-third health share (> 23%).
The verdict
Gqc Well Commission sits in the upper third of the sitemap cohort by violation count (340), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (360; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 25% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- 340
- Total EPA violations on record
- 25%
- Health-based (MCL / treatment failure)
- 360
- 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
- Private
- Connections
- 120
- County
- Hartford
- School/Daycare
- No
- MCL Violations
- 84
- Monitoring Violations
- 226
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 84 | 2013 |
| Coliform (TCR) | MR | 23 | 2015 |
| Lead and Copper Rule | MR | 8 | 2021 |
| Consumer Confidence Rule | Other | 8 | 2025 |
| 1,2,4-Trichlorobenzene | MR | 8 | 2008 |
| cis-1,2-Dichloroethylene | MR | 8 | 2008 |
| DICHLOROMETHANE | MR | 8 | 2008 |
| o-Dichlorobenzene | MR | 8 | 2008 |
| trans-1,2-Dichloroethylene | MR | 8 | 2008 |
| 1,1,1-Trichloroethane | MR | 8 | 2008 |
| 1,2-Dichloropropane | MR | 8 | 2008 |
| Tetrachloroethylene | MR | 8 | 2008 |
| Ethylbenzene | MR | 8 | 2008 |
| Vinyl chloride | MR | 8 | 2008 |
| 1,1-Dichloroethylene | MR | 8 | 2008 |
| 1,2-Dichloroethane | MR | 8 | 2008 |
| CHLOROBENZENE | MR | 8 | 2008 |
| Toluene | MR | 8 | 2008 |
| Styrene | MR | 8 | 2008 |
| Trichloroethylene | MR | 8 | 2008 |
| 1,1,2-Trichloroethane | MR | 8 | 2008 |
| Benzene | MR | 8 | 2008 |
| p-Dichlorobenzene | MR | 8 | 2008 |
| Carbon tetrachloride | MR | 8 | 2008 |
| TTHM | MR | 6 | 2021 |
| Public Notice | Other | 5 | 2022 |
| E. COLI | MR | 4 | 2011 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2017 |
| Groundwater Rule | MR | 3 | 2018 |
| Nitrate | MR | 2 | 2007 |
Violation Count vs. the National Corpus
Gqc Well Commission has 340 recorded EPA violations, 92% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 8% carry more. 25% of this system's own violations are health-based (85 of 340), 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)
340 Higher than most more violations than 92% 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 Gqc Well Commission
85 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for CT0400041.
Sources: EPA SDWIS
Nationwide peers
340 violations · 360 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 Gqc Well Commission
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Connecticut compares on the same EPA violation measures. Connecticut 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.