Public Water System

NEW ORLEANS CARROLLTON WATER WORKS

PWSID LA1071009 · Louisiana · 334,903 people served

Fair

NEW ORLEANS CARROLLTON WATER WORKS is an EPA-regulated public water system in Louisiana (PWSID LA1071009). It serves an estimated 334,903 residents — a large city of customers — across 1 community across 1 ZIP code.

Over the past five years, NEW ORLEANS CARROLLTON WATER WORKS has recorded 4 EPA health-based violations. The grade of C summarizes this compliance pattern. Specific contaminants, dates, and rule citations are listed in the violation history below.

Service Area

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Centered on the averaged ZIP-code centroid of 1 ZIP served.

Population

334,903

Cities

ZIPs

Violations

EPA Health-Based Violations

Health-based Maximum Contaminant Level (MCL) violations on file for NEW ORLEANS CARROLLTON WATER WORKS over the past five years of EPA SDWIS reporting.

E. Colimicrobial

EPA Code 0300 · Treatment Technique Violation

violations

EPA Limit

0 per 100 mL presence/absence

Last Reading

—

First Reported

Jan 2025

Most Recent

Jan 2025

What this violation means

E. coli detection is an EPA Tier 1 acute violation, requiring same-day public notification. It confirms that fecal matter has entered the drinking water supply, posing immediate health risks — particularly to children, the elderly, and immunocompromised individuals.

Recommended precautions

→Do not drink the water until the utility has lifted the advisory.
→Boil water for at least one minute (three minutes at elevations above 6,500 ft).
→Disinfect dishes and surfaces that touched contaminated water.
→Seek medical attention if you develop bloody diarrhea or persistent vomiting.

Read the complete guide to E. Coli

Source: EPA Safe Drinking Water Information System (SDWIS). Health-based violations only. Older violations may have been resolved; check your utility's most recent Consumer Confidence Report for current status.

Cities Served by NEW ORLEANS CARROLLTON WATER WORKS

NEW ORLEANS

ZIP Codes Served

70118

About this system

EPA records this system as PWSID LA1071009. Data reflects the most recent EPA SDWIS publication as of 2026-05-18. Public Water System Identifiers (PWSIDs) are assigned by the EPA's Safe Drinking Water Act program to track every regulated water utility in the United States. The first two letters typically indicate the state primacy agency. For real-time water quality information, contact NEW ORLEANS CARROLLTON WATER WORKS directly or review their annual Consumer Confidence Report (CCR).