MYSTIC KOA
Connecticut - Transient Non-Community - PWSID: CT1020164
System Information
| PWSID | CT1020164 |
| System Name | MYSTIC KOA |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 01 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 11, 2000 |
| Last Reported | Mar 30, 2026 |
Location & Contact
| State | Connecticut |
| City | NORTH STONINGTON |
| ZIP Code | 06359 |
| Address | 118 Pendleton Hill Rd |
| Organization | TAYLOR OOSTDYK, LAURA |
| Phone | 860-599-5101 |
Population & Service
| Population Served | 33 |
| Service Connections | 275 |
Drinking Water Violations (118)
This water system has 118 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 14, 2023 | - | Other | No | No | - | - | - | Resolved | Oct 10, 2023 | - | |
| Jun 22, 2023 | - | Other | No | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| Jun 22, 2023 | - | Other | No | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| May 13, 2023 | - | TT | Yes | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| May 13, 2023 | - | TT | Yes | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| May 13, 2023 | - | TT | Yes | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| May 13, 2023 | - | TT | Yes | No | - | - | - | Resolved | Nov 1, 2023 | - | |
| May 20, 2022 | - | TT | Yes | No | - | - | - | Resolved | Jun 24, 2022 | - | |
| May 20, 2022 | - | TT | Yes | No | - | - | - | Resolved | Jun 24, 2022 | - | |
| May 20, 2022 | - | TT | Yes | No | - | - | - | Resolved | Jun 24, 2022 | - | |
| May 20, 2022 | - | TT | Yes | No | - | - | - | Resolved | Jun 24, 2022 | - | |
| Aug 22, 2019 | - | TT | Yes | No | - | - | - | Resolved | Sep 13, 2019 | - | |
| Aug 22, 2019 | - | TT | Yes | No | - | - | - | Resolved | Sep 13, 2019 | - | |
| Aug 22, 2019 | - | TT | Yes | No | - | - | - | Resolved | Sep 13, 2019 | - | |
| Aug 22, 2019 | - | TT | Yes | No | - | - | - | Resolved | Sep 13, 2019 | - | |
| Jan 11, 2019 | - | Other | No | No | - | - | - | Resolved | Mar 8, 2019 | - | |
| Jan 11, 2019 | - | Other | No | No | - | - | - | Resolved | Mar 8, 2019 | - | |
| Oct 11, 2018 | - | TT | Yes | No | - | - | - | Resolved | May 21, 2019 | - | |
| Oct 11, 2018 | - | TT | Yes | No | - | - | - | Resolved | May 21, 2019 | - | |
| Oct 11, 2018 | - | TT | Yes | No | - | - | - | Resolved | May 21, 2019 | - | |
| Oct 11, 2018 | - | TT | Yes | No | - | - | - | Resolved | May 21, 2019 | - | |
| Oct 1, 2018 | Oct 31, 2018 | MON | No | Yes | - | - | - | Resolved | Oct 31, 2018 | - | |
| Oct 1, 2018 | Oct 31, 2018 | MON | No | Yes | - | - | - | Resolved | Oct 31, 2018 | - | |
| Oct 1, 2018 | Oct 31, 2018 | MON | No | Yes | - | - | - | Resolved | Oct 31, 2018 | - | |
| Oct 1, 2018 | Oct 31, 2018 | MON | No | Yes | - | - | - | Resolved | Oct 31, 2018 | - | |
| Sep 17, 2018 | - | MR | No | Yes | - | - | - | Resolved | Apr 26, 2019 | - | |
| Sep 17, 2018 | - | MR | No | Yes | - | - | - | Resolved | Apr 26, 2019 | - | |
| Sep 17, 2018 | - | MR | No | Yes | - | - | - | Resolved | Apr 26, 2019 | - | |
| Sep 17, 2018 | - | MR | No | Yes | - | - | - | Resolved | Apr 26, 2019 | - | |
| May 7, 2016 | - | Other | No | No | - | - | - | Resolved | Mar 8, 2019 | - | |
| May 7, 2016 | - | Other | No | No | - | - | - | Resolved | Mar 8, 2019 | - | |
| Nov 6, 2015 | - | Other | No | No | - | - | - | Resolved | Jan 21, 2016 | - | |
| Nov 1, 2015 | Nov 30, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2015 | - | |
| Nov 1, 2015 | Nov 30, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2015 | - | |
| Nov 1, 2015 | Nov 30, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2015 | - | |
| Nov 1, 2015 | Nov 30, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2015 | - | |
| Oct 29, 2015 | - | MR | No | No | - | - | - | Resolved | Apr 26, 2019 | - | |
| Oct 29, 2015 | - | MR | No | No | - | - | - | Resolved | Apr 26, 2019 | - | |
| Oct 29, 2015 | - | MR | No | No | - | - | - | Resolved | Apr 26, 2019 | - | |
| Oct 29, 2015 | - | MR | No | No | - | - | - | Resolved | Apr 26, 2019 | - | |
| Oct 1, 2015 | - | MR | No | No | - | - | - | Resolved | Apr 26, 2019 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Oct 1, 2015 | - | MR | No | No | - | - | - | Resolved | Apr 26, 2019 | - | |
| Oct 1, 2015 | - | MR | No | No | - | - | - | Resolved | Apr 26, 2019 | - | |
| Oct 1, 2015 | - | MR | No | No | - | - | - | Resolved | Apr 26, 2019 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2015 | - | |
| Jul 1, 2015 | Sep 30, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2015 | - |
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.