SAN SEBASTIAN
PR — Community Water System — PWSID: PR0003303
System Information
| PWSID | PR0003303 |
| System Name | SAN SEBASTIAN |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 02 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 1, 1980 |
| Last Reported | Mar 9, 2026 |
Location & Contact
| State | PR |
| City | SAN SEBASTIAN |
| ZIP Code | 00685 |
| Address | CARR. 449 TO THE END |
| Organization | SAN SEBASTIAN |
| Phone | 787-620-2277 |
Population & Service
| Population Served | 24,449 |
| Service Connections | 9,157 |
Drinking Water Violations (250)
This water system has 250 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2020 | — | Other | No | No | — | — | — | Resolved | Jul 31, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | .062 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2020 | — | |
| Oct 1, 2018 | — | Other | No | No | — | — | — | Resolved | Aug 13, 2019 | — | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | .079 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2018 | — | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | .079 MG/L | 0.060 mg/L | .06 | Resolved | Dec 31, 2018 | — | |
| Oct 1, 2018 | — | Other | No | No | — | — | — | Resolved | Aug 13, 2019 | — | |
| Apr 1, 2018 | Apr 30, 2018 | MR | No | No | — | TT | — | Resolved | Apr 30, 2018 | — | |
| Apr 1, 2018 | Apr 30, 2018 | MR | No | No | — | TT | — | Resolved | Apr 30, 2018 | — | |
| Apr 1, 2018 | Apr 30, 2018 | MR | No | No | — | — | — | Resolved | Apr 30, 2018 | — | |
| Apr 1, 2018 | Jun 30, 2018 | MCL | Yes | No | .088 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2018 | — | |
| Apr 1, 2018 | Apr 30, 2018 | MR | No | No | — | — | — | Resolved | Apr 30, 2018 | — | |
| Apr 1, 2018 | Apr 30, 2018 | MR | No | No | — | — | — | Resolved | Apr 30, 2018 | — | |
| Apr 1, 2018 | Apr 30, 2018 | MR | No | No | — | — | — | Resolved | Apr 30, 2018 | — | |
| Apr 1, 2018 | Jun 30, 2018 | MCL | Yes | No | .088 MG/L | 0.060 mg/L | .06 | Resolved | Jun 30, 2018 | — | |
| Jan 1, 2018 | Mar 31, 2018 | MCL | Yes | No | .066 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | MR | No | No | — | TT | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | MR | No | No | — | TT | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | MR | No | No | — | — | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | MR | No | No | — | — | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | MR | No | No | — | — | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | MR | No | No | — | — | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | MR | No | No | — | — | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | MR | No | No | — | TT | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Mar 31, 2018 | MCL | Yes | No | .066 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | MR | No | No | — | — | — | Resolved | Jan 31, 2018 | — | |
| Jul 1, 2017 | Jul 31, 2017 | MR | No | Yes | — | TT | — | Resolved | Jul 31, 2017 | — | |
| Jul 1, 2017 | Jul 31, 2017 | MR | No | Yes | — | TT | — | Resolved | Jul 31, 2017 | — | |
| Jul 1, 2017 | Jul 31, 2017 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2017 | — | |
| Jul 1, 2017 | Jul 31, 2017 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2017 | — | |
| Jul 1, 2017 | Jul 31, 2017 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2017 | — | |
| Jul 1, 2017 | Jul 31, 2017 | MR | No | Yes | — | — | — | Resolved | Jul 31, 2017 | — | |
| Jun 1, 2017 | Jun 30, 2017 | MR | No | No | — | TT | — | Resolved | Jun 30, 2017 | — | |
| Jun 1, 2017 | Jun 30, 2017 | MR | No | No | — | — | — | Resolved | Jun 30, 2017 | — | |
| Jun 1, 2017 | Jun 30, 2017 | MR | No | No | — | — | — | Resolved | Jun 30, 2017 | — | |
| Jun 1, 2017 | Jun 30, 2017 | MR | No | No | — | TT | — | Resolved | Jun 30, 2017 | — | |
| Jun 1, 2017 | Jun 30, 2017 | MR | No | No | — | — | — | Resolved | Jun 30, 2017 | — | |
| Jun 1, 2017 | Jun 30, 2017 | MR | No | No | — | — | — | Resolved | Jun 30, 2017 | — | |
| May 1, 2017 | May 31, 2017 | MR | No | Yes | — | TT | — | Resolved | May 31, 2017 | — | |
| May 1, 2017 | May 31, 2017 | MR | No | Yes | — | — | — | Resolved | May 31, 2017 | — | |
| May 1, 2017 | May 31, 2017 | MR | No | Yes | — | — | — | Resolved | May 31, 2017 | — | |
| May 1, 2017 | May 31, 2017 | MR | No | Yes | — | TT | — | Resolved | May 31, 2017 | — | |
| May 1, 2017 | May 31, 2017 | MR | No | Yes | — | — | — | Resolved | May 31, 2017 | — | |
| May 1, 2017 | May 31, 2017 | MR | No | Yes | — | — | — | Resolved | May 31, 2017 | — | |
| Feb 1, 2017 | Feb 28, 2017 | MR | No | Yes | — | TT | — | Resolved | Feb 28, 2017 | — | |
| Feb 1, 2017 | Feb 28, 2017 | MR | No | Yes | — | — | — | Resolved | Feb 28, 2017 | — | |
| Feb 1, 2017 | Feb 28, 2017 | MR | No | Yes | — | TT | — | Resolved | Feb 28, 2017 | — | |
| Feb 1, 2017 | Feb 28, 2017 | MR | No | Yes | — | — | — | Resolved | Feb 28, 2017 | — | |
| Feb 1, 2017 | Feb 28, 2017 | MR | No | Yes | — | — | — | Resolved | Feb 28, 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.