CITY OF BAY ST LOUIS
Mississippi - Community Water System - PWSID: MS0230001
System Information
| PWSID | MS0230001 |
| System Name | CITY OF BAY ST LOUIS |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 04 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 28, 1979 |
| Last Reported | Mar 17, 2026 |
Location & Contact
| State | Mississippi |
| City | BAY ST LOUIS |
| ZIP Code | 39520 |
| Address | 688 HWY 90 |
| Organization | FAVRE, MIKE |
| Phone | 228-467-5505 |
Population & Service
| Population Served | 9,284 |
| Service Connections | 3,847 |
Drinking Water Violations (735)
This water system has 735 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 7, 2024 | - | Other | No | No | - | - | - | Resolved | Dec 18, 2024 | - | |
| Dec 7, 2024 | - | Other | No | No | - | - | - | Resolved | Dec 18, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | .083 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | .083 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | .083 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2024 | - | |
| Oct 1, 2024 | Dec 31, 2024 | MCL | Yes | No | .083 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | .085 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | .085 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | .085 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2024 | - | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | .085 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2024 | - | |
| May 27, 2024 | - | Other | No | No | - | - | - | Resolved | May 31, 2024 | - | |
| May 27, 2024 | - | Other | No | No | - | - | - | Resolved | May 31, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | .082 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2024 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Sep 29, 2023 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Sep 29, 2023 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Sep 29, 2023 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Sep 29, 2023 | - | |
| Jun 4, 2023 | - | Other | No | No | - | - | - | Resolved | Jun 28, 2024 | - | |
| Jun 4, 2023 | - | Other | No | No | - | - | - | Resolved | Jun 28, 2024 | - | |
| Mar 10, 2023 | - | Other | No | No | - | - | - | Resolved | Apr 21, 2025 | - | |
| Mar 10, 2023 | - | Other | No | No | - | - | - | Resolved | Apr 21, 2025 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | .084 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | .084 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | .084 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2023 | - | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | .084 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2023 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | .089 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2022 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | .089 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2022 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | .089 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2022 | - | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | .089 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2022 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | No | - | 4.0 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | No | - | 4.0 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | No | - | 4.0 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | No | - | 4.0 mg/L | - | Resolved | Dec 31, 2018 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 30 ug/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 30 ug/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 30 ug/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | 30 ug/L | - | Resolved | Dec 31, 2012 | - | |
| Oct 1, 2012 | Dec 31, 2012 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2012 | - |
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.