HAWTHORNE TERRACE ASSOC
Connecticut - Community Water System - PWSID: CT0340151
System Information
| PWSID | CT0340151 |
| System Name | HAWTHORNE TERRACE ASSOC |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 8, 1979 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Connecticut |
| City | DANBURY |
| ZIP Code | 06810 |
| Address | 155 DEER HILL AVENUE |
| Organization | DAY, DAVID M. |
| Phone | 203-797-4539 |
Population & Service
| Population Served | 156 |
| Service Connections | 50 |
Drinking Water Violations (170)
This water system has 170 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Apr 8, 2025 | - | |
| Apr 1, 2025 | - | MR | No | No | - | TT | - | Resolved | Apr 8, 2025 | - | |
| Jan 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Mar 31, 2022 | - | |
| Jan 1, 2022 | - | MR | No | No | - | TT | - | Resolved | Mar 31, 2022 | - | |
| Jul 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | - | MR | No | No | - | TT | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2019 | - | Other | No | No | - | - | - | Resolved | Jul 2, 2019 | - | |
| Jul 1, 2019 | - | Other | No | No | - | - | - | Resolved | Jul 2, 2019 | - | |
| Jul 1, 2016 | - | Other | No | No | - | - | - | Resolved | Feb 23, 2017 | - | |
| Sep 29, 2015 | - | MR | No | No | - | TT | - | Resolved | Mar 18, 2016 | - | |
| Sep 29, 2015 | - | MR | No | No | - | TT | - | Resolved | Mar 18, 2016 | - | |
| Jul 1, 2015 | Dec 31, 2015 | MR | No | No | - | TT | - | Resolved | Dec 31, 2015 | - | |
| Jul 1, 2015 | Dec 31, 2015 | MR | No | No | - | TT | - | Resolved | Dec 31, 2015 | - | |
| Jul 1, 2015 | Dec 31, 2015 | MR | No | No | - | TT | - | Resolved | Dec 31, 2015 | - | |
| Jul 1, 2015 | Dec 31, 2015 | MR | No | No | - | TT | - | Resolved | Dec 31, 2015 | - | |
| Apr 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Mar 18, 2016 | - | |
| Apr 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Mar 18, 2016 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.4 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.4 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.007 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.007 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.04 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Jun 16, 2016 | - | |
| Jan 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Jun 16, 2016 | - | |
| Jan 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Jun 16, 2016 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.001 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.04 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.04 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.0005 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.0005 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.07 mg/L | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2015 | Dec 31, 2017 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Dec 31, 2017 | - |
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.