Tap water · LA
Sewerage & Water Board of New Orleans
EPA system ID LA1071009 · serves about 334,903 people. Every US utility must publish an annual water quality report — here’s the official one (2025), and below it, our plain-English translation.
Read the official report →What Sewerage & Water Board of New Orleans found in 2025
10 detected analytes from the utility’s own annual report, hand-normalized — 1 was near or over a limit (flagged below).
| Detected | Level | Limit | % of limit | Status |
|---|---|---|---|---|
| Total Chlorine Residual (highest of multiple sources) | 3.2 ppm | 4 ppm | 80% | Near limit |
| Haloacetic Acids (HAA5) (highest of multiple sources) | 34 ppb | 60 ppb | 57% | Within limit |
| Perfluorooctane-sulfonic acid (PFOS) (highest of multiple sources) | 2.2 ppt | 4 ppt | 55% | Within limit |
| Perfluorooctanoic acid (PFOA) (highest of multiple sources) | 1.7 ppt | 4 ppt | 43% | Within limit |
| Lead (90th percentile) (highest of multiple sources) | 6 ppb | 15 ppb | 40% | Within limit |
| Total Trihalomethanes (TTHMs) (highest of multiple sources) | 30 ppb | 80 ppb | 38% | Within limit |
| Fluoride (highest of multiple sources) | 0.71 ppm | 4 ppm | 18% | Within limit |
| Copper (90th percentile) (highest of multiple sources) | 0.1 ppm | 1.3 ppm | 8% | Within limit |
| Gross Beta Particle Activity | 1.33 pCi/L | 50 pCi/L | 3% | Within limit |
| Hexachlorocyclopentadiene | 0.027 ppb | 50 ppb | 0% | Within limit |
Levels and limits are as printed in the utility’s report (“limit” is the EPA MCL, action level, residual limit, or secondary guideline that applies to that row; “ND” = not detected). Utilities publish these reports annually — we re-check every covered utility each July, after the federal publication deadline. Detected doesn’t mean dangerous — most detections sit far below their limits. This is education, not medical advice.
Zip codes covered
70112 · 70113 · 70115 · 70116 · 70117 · 70118 · 70119 · 70122 · 70124 · 70125 · 70126 · 70127 · 70128 · 70129 · 70130
Boundary zips partially served by other systems are deliberately unlisted — check your exact zip.