QUONNIPAUG HILLS - MAIN SYSTEM
Connecticut — Community Water System — PWSID: CT0600041
System Information
| PWSID | CT0600041 |
| System Name | QUONNIPAUG HILLS - MAIN SYSTEM |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 8, 1979 |
| Last Reported | Dec 15, 2025 |
Location & Contact
| State | Connecticut |
| City | BRANFORD |
| ZIP Code | 06405 |
| Address | 625 EAST MAIN STREET |
| Organization | KRYGIER, WILLIAM P. |
| Phone | 203-488-9500 |
Population & Service
| Population Served | 564 |
| Service Connections | 187 |
Drinking Water Violations (405)
This water system has 405 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2025 | Jan 31, 2025 | E. COLI | MR | No | Yes | — | — | — | Resolved | Jan 31, 2025 | Ground Water Rule |
| Jan 1, 2025 | Jan 31, 2025 | E. COLI | MR | No | Yes | — | — | — | Resolved | Jan 31, 2025 | Ground Water Rule |
| Jan 1, 2025 | Jan 31, 2025 | E. COLI | MR | No | Yes | — | — | — | Resolved | Jan 31, 2025 | Ground Water Rule |
| Jan 1, 2025 | Jan 31, 2025 | E. COLI | MR | No | Yes | — | — | — | Resolved | Jan 31, 2025 | Ground Water Rule |
| Jul 1, 2019 | Sep 30, 2019 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Aug 31, 2019 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2019 | Sep 30, 2019 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Aug 31, 2019 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2019 | Sep 30, 2019 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Aug 31, 2019 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2019 | Sep 30, 2019 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Aug 31, 2019 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Mar 10, 2019 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Aug 21, 2019 | Revised Total Coliform Rule |
| Mar 10, 2019 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Aug 21, 2019 | Revised Total Coliform Rule |
| Mar 10, 2019 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Aug 21, 2019 | Revised Total Coliform Rule |
| Mar 10, 2019 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Aug 21, 2019 | Revised Total Coliform Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Feb 1, 2019 | Feb 28, 2019 | E. COLI | MR | No | Yes | — | — | — | Resolved | Feb 28, 2019 | Ground Water Rule |
| Jan 1, 2019 | Mar 31, 2019 | 1,2,4-Trichlorobenzene | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
| Jan 1, 2019 | Mar 31, 2019 | Tetrachloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
| Jan 1, 2019 | Mar 31, 2019 | Tetrachloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
| Jan 1, 2019 | Mar 31, 2019 | 1,2-Dichloropropane | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
| Jan 1, 2019 | Mar 31, 2019 | cis-1,2-Dichloroethylene | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
| Jan 1, 2019 | Mar 31, 2019 | cis-1,2-Dichloroethylene | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
| Jan 1, 2019 | Mar 31, 2019 | Benzene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
| Jan 1, 2019 | Mar 31, 2019 | Tetrachloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
| Jan 1, 2019 | Mar 31, 2019 | 1,2,4-Trichlorobenzene | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
| Jan 1, 2019 | Mar 31, 2019 | 1,2-Dichloropropane | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
| Jan 1, 2019 | Mar 31, 2019 | Benzene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
| Jan 1, 2019 | Mar 31, 2019 | 1,2-Dichloropropane | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
| Jan 1, 2019 | Mar 31, 2019 | Tetrachloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
| Jan 1, 2019 | Mar 31, 2019 | trans-1,2-Dichloroethylene | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Mar 31, 2019 | Volatile Organic Chemicals |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.