St. Mary Parish County, Louisiana Water Systems

St. Mary Parish County, Louisiana

14 community water systems on record — 12 active, 2 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Louisiana’s official records. Always confirm current status with Louisiana before making decisions based on this information.

Community water systems in St. Mary Parish County, Louisiana

System name	City	Population served	Status
BERWICK BAYOU VISTA WW COMMISSION	BERWICK	0	Active
FRANKLIN WATER SUPPLY	FRANKLIN	8,325	Active
GLENCOE COMMUNITY WATER SYSTEM	JEANERETTE	190	Active
MORGAN CITY WATER SYSTEM	MORGAN CITY	12,703	Active
PATTERSON WATER SYSTEM	PATTERSON	8,456	Active
PORT OF WEST ST MARY	FRANKLIN	400	Active
ST MARY PAR JT WATER SEWER COMMISSION 5	JEANERETTE	1,240	Active
ST MARY PARISH W&S #2 BAYOU VISTA	PATTERSON	5,379	Active
ST MARY PARISH WATER SEWERAGE COMM 1	AMELIA	2,823	Active
ST MARY WATER & SEWER COMM #3	CENTERVILLE	7,500	Active
ST. MARY WATER WORKS DIST. #1	MORGAN CITY	1,600	Inactive
TOWN OF BALDWIN WATER SUPPLY	BALDWIN	2,500	Inactive
TOWN OF BERWICK	BERWICK	5,024	Active
WATER & SEWER COMMISSION 4 OF ST MARY	CHARENTON	9,709	Active