AQUARION-NEW CANAAN
Connecticut — Community Water System — PWSID: CT0900011
System Information
| PWSID | CT0900011 |
| System Name | AQUARION-NEW CANAAN |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| 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 | SHELTON |
| ZIP Code | 06484 |
| Address | 505 Huntington St. |
| Organization | ULRICH, ROBERT J. |
| Phone | 203-926-4320 |
Population & Service
| Population Served | 10,097 |
| Service Connections | 3,742 |
Drinking Water Violations (23)
This water system has 23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 22, 2021 | — | Public Notice | Other | No | No | — | — | — | Resolved | Nov 8, 2022 | Public Notice Rule and Revised PN Rule |
| Oct 22, 2021 | — | Public Notice | Other | No | No | — | — | — | Resolved | Nov 8, 2022 | Public Notice Rule and Revised PN Rule |
| Feb 29, 2020 | May 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Feb 29, 2020 | May 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | May 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2018 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 9, 2018 | Consumer Confidence Rule |
| Jul 1, 2018 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 9, 2018 | Consumer Confidence Rule |
| Jul 1, 2006 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 13, 2006 | Consumer Confidence Rule |
| Jul 1, 2006 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 13, 2006 | Consumer Confidence Rule |
| May 1, 1993 | May 31, 1993 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 1993 | Total Coliform Rule |
| May 1, 1993 | May 31, 1993 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 1993 | Total Coliform Rule |
| May 1, 1993 | May 31, 1993 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 1993 | Total Coliform Rule |
| May 1, 1993 | May 31, 1993 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 1993 | Total Coliform Rule |
| Aug 1, 1983 | Aug 31, 1983 | Fluoride | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Aug 31, 1983 | Inorganic Chemicals |
| Aug 1, 1983 | Aug 31, 1983 | Fluoride | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Aug 31, 1983 | Inorganic Chemicals |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — |
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.