BAY ST LOUIS, MS · Hancock County
CITY OF BAY ST LOUIS Water System
Consumer Confidence Report status
CITY OF BAY ST LOUIS must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for CITY OF BAY ST LOUIS.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Mississippi’s official records. Always confirm current status with Mississippi before making decisions based on this information.
System facts
- System ID (PWSID)
- MS0230001
- System type
- Community Water System
- Population served
- 9,284
- Service connections
- 3,847
- Ownership
- local government
- Water source
- groundwater (wells)
CITY OF BAY ST LOUIS is one of 161 community water systems in Mississippi in the 3,301 to 10,000 people size category, serving 9,284 people from groundwater.
As of August 1, 2026, its federal record holds 36 entries between 2008 and 2024, all of which EPA lists as closed.
Of the 36, 33 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Radionuclides and Revised Rad Rule, the Stage 2 Disinfectants and Disinfection Byproducts Rule, and the Stage 1 Disinfectants and Disinfection Byproducts Rule.
Violation history
Maximum Contaminant Level Violation, Average
Health-basedTTHM
July 1, 2024 – September 30, 2024
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTTHM
April 1, 2024 – June 30, 2024
ResolvedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2018 – December 31, 2018
ResolvedMonitoring, Regular
—Combined Uranium
October 1, 2012 – December 31, 2012
ResolvedMonitoring, Regular
—Radium-228
October 1, 2012 – December 31, 2012
ResolvedMonitoring, Regular
—Radium-226
October 1, 2012 – December 31, 2012
ResolvedMonitoring, Regular
—Radium-228
July 1, 2012 – September 30, 2012
ResolvedMonitoring, Regular
—Radium-226
July 1, 2012 – September 30, 2012
ResolvedMonitoring, Regular
—Radium-226
July 1, 2012 – September 30, 2012
ResolvedMonitoring, Regular
—Radium-226
July 1, 2012 – September 30, 2012
ResolvedMonitoring, Regular
—Radium-228
July 1, 2012 – September 30, 2012
ResolvedMonitoring, Regular
—Combined Uranium
April 1, 2012 – June 30, 2012
ResolvedMonitoring, Regular
—Combined Uranium
April 1, 2012 – June 30, 2012
ResolvedMonitoring, Regular
—Combined Uranium
January 1, 2012 – March 31, 2012
ResolvedMonitoring, Regular
—Radium-226
January 1, 2012 – March 31, 2012
ResolvedMonitoring, Regular
—Radium-226
January 1, 2012 – March 31, 2012
ResolvedMonitoring, Regular
—Combined Uranium
January 1, 2012 – March 31, 2012
ResolvedMonitoring, Regular
—Radium-226
October 1, 2011 – December 31, 2011
ResolvedMonitoring, Regular
—Radium-226
October 1, 2011 – December 31, 2011
ResolvedMonitoring, Regular
—Radium-228
October 1, 2011 – December 31, 2011
ResolvedMonitoring, Regular
—Combined Uranium
October 1, 2011 – December 31, 2011
ResolvedMonitoring, Regular
—Radium-228
July 1, 2011 – September 30, 2011
ResolvedMonitoring, Regular
—Radium-226
April 1, 2011 – June 30, 2011
ResolvedMonitoring, Regular
—Radium-226
April 1, 2011 – June 30, 2011
ResolvedMonitoring, Regular
—Combined Uranium
January 1, 2011 – March 31, 2011
ResolvedMonitoring, Regular
—Radium-228
January 1, 2011 – March 31, 2011
ResolvedMonitoring, Regular
—Radium-226
July 1, 2010 – September 30, 2010
ResolvedMonitoring, Regular
—Combined Uranium
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Radium-226
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Radium-228
January 1, 2009 – March 31, 2009
ResolvedMonitoring, Regular
—Radium-226
January 1, 2009 – March 31, 2009
ResolvedMonitoring, Regular
—Combined Uranium
January 1, 2009 – March 31, 2009
ResolvedMonitoring, Regular
—Radium-226
October 1, 2008 – December 31, 2008
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
October 1, 2008 – May 15, 2012
ResolvedMonitoring, Regular
—Combined Uranium
July 1, 2008 – September 30, 2008
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
July 1, 2008 – September 30, 2008
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2024 – September 30, 2024 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| April 1, 2024 – June 30, 2024 | Maximum Contaminant Level Violation, Average | TTHM | Health-based | Resolved |
| October 1, 2018 – December 31, 2018 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| October 1, 2012 – December 31, 2012 | Monitoring, Regular | Combined Uranium | — | Resolved |
| October 1, 2012 – December 31, 2012 | Monitoring, Regular | Radium-228 | — | Resolved |
| October 1, 2012 – December 31, 2012 | Monitoring, Regular | Radium-226 | — | Resolved |
| July 1, 2012 – September 30, 2012 | Monitoring, Regular | Radium-228 | — | Resolved |
| July 1, 2012 – September 30, 2012 | Monitoring, Regular | Radium-226 | — | Resolved |
| July 1, 2012 – September 30, 2012 | Monitoring, Regular | Radium-226 | — | Resolved |
| July 1, 2012 – September 30, 2012 | Monitoring, Regular | Radium-226 | — | Resolved |
| July 1, 2012 – September 30, 2012 | Monitoring, Regular | Radium-228 | — | Resolved |
| April 1, 2012 – June 30, 2012 | Monitoring, Regular | Combined Uranium | — | Resolved |
| April 1, 2012 – June 30, 2012 | Monitoring, Regular | Combined Uranium | — | Resolved |
| January 1, 2012 – March 31, 2012 | Monitoring, Regular | Combined Uranium | — | Resolved |
| January 1, 2012 – March 31, 2012 | Monitoring, Regular | Radium-226 | — | Resolved |
| January 1, 2012 – March 31, 2012 | Monitoring, Regular | Radium-226 | — | Resolved |
| January 1, 2012 – March 31, 2012 | Monitoring, Regular | Combined Uranium | — | Resolved |
| October 1, 2011 – December 31, 2011 | Monitoring, Regular | Radium-226 | — | Resolved |
| October 1, 2011 – December 31, 2011 | Monitoring, Regular | Radium-226 | — | Resolved |
| October 1, 2011 – December 31, 2011 | Monitoring, Regular | Radium-228 | — | Resolved |
| October 1, 2011 – December 31, 2011 | Monitoring, Regular | Combined Uranium | — | Resolved |
| July 1, 2011 – September 30, 2011 | Monitoring, Regular | Radium-228 | — | Resolved |
| April 1, 2011 – June 30, 2011 | Monitoring, Regular | Radium-226 | — | Resolved |
| April 1, 2011 – June 30, 2011 | Monitoring, Regular | Radium-226 | — | Resolved |
| January 1, 2011 – March 31, 2011 | Monitoring, Regular | Combined Uranium | — | Resolved |
| January 1, 2011 – March 31, 2011 | Monitoring, Regular | Radium-228 | — | Resolved |
| July 1, 2010 – September 30, 2010 | Monitoring, Regular | Radium-226 | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | Combined Uranium | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | Radium-226 | — | Resolved |
| January 1, 2009 – March 31, 2009 | Monitoring, Regular | Radium-228 | — | Resolved |
| January 1, 2009 – March 31, 2009 | Monitoring, Regular | Radium-226 | — | Resolved |
| January 1, 2009 – March 31, 2009 | Monitoring, Regular | Combined Uranium | — | Resolved |
| October 1, 2008 – December 31, 2008 | Monitoring, Regular | Radium-226 | — | Resolved |
| October 1, 2008 – May 15, 2012 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| July 1, 2008 – September 30, 2008 | Monitoring, Regular | Combined Uranium | — | Resolved |
| July 1, 2008 – September 30, 2008 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- May 15, 2012State Compliance achieved1 linked violation
- May 15, 2012State Public Notification received90 linked violations
- March 20, 2012State Formal Notice of Violation issued90 linked violations
- March 20, 2012State Public Notification requested90 linked violations
- December 1, 2010State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- December 1, 2010State Compliance achieved3 linked violations
- March 3, 2010State Compliance achieved6 linked violations
- February 23, 2010State Compliance achieved3 linked violations
- September 30, 2009State Compliance achieved70 linked violations
- September 30, 2009State Compliance achieved57 linked violations
- September 30, 2009State Compliance achieved43 linked violations
- September 30, 2009State Compliance achieved63 linked violations
- April 27, 1992State Intentional no-action1 linked violation
- January 21, 1988State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- September 14, 1987State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- June 7, 1984State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- August 11, 1983State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
Common questions
Is CITY OF BAY ST LOUIS required to publish a Consumer Confidence Report?
- Yes. CITY OF BAY ST LOUIS is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is CITY OF BAY ST LOUIS’s next Consumer Confidence Report due?
- CITY OF BAY ST LOUIS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CITY OF BAY ST LOUIS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for CITY OF BAY ST LOUIS.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
FAVRE, MIKE
228-467-5505
BAY ST LOUIS, MS 39520