Tapcensus

E. coli (Escherichia coli) violations in Louisiana

6 active public water systems in Louisiana had a E. coli (Escherichia coli) violation in the past three years, 6 of them in the latest quarter of EPA's data. What E. coli (Escherichia coli) is and why it matters.

Health effects: Most E. coli strains cause diarrheal illness. Some strains (e.g., O157:H7) produce toxins causing severe bloody diarrhea, hemolytic uremic syndrome (HUS — a form of kidney failure), and death — especially in children under 5 and the elderly. Even non-pathogenic strains in drinking water indicate that disease-causing organisms may also be present.

Systems with a E. coli (Escherichia coli) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Town of New Roads Water System
Pointe Coupee County 		9,024 5 3
Dollar General NO 09535
St. Tammany County 		40 1 0
Lakeview Trailer Park Water System
Lafayette County 		30 6 6
29 Palms Trailer Park
Washington County 		25 7 7
Dollar General 14262 Water System
Iberia County 		25 2 2
Big D's II Water System
St. Martin County 		25 2 2
About this data

A system is counted once if any of its violations in the past three years involved E. coli (Escherichia coli), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not E. coli (Escherichia coli) alone.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Louisiana records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.