Lake Arthur, LA vs New Orleans, LA

When comparing tap water quality between Lake Arthur, LA and New Orleans, LA, Lake Arthur currently holds a substantial 27-point lead in average WaterQ score, with a score of 93 out of 100 versus 66 for New Orleans. Lake Arthur, LA carries an A grade while New Orleans, LA carries a C. A WaterQ score reflects an aggregate of EPA-reported violations, monitoring data, and compliance history across all public water systems serving each city, so a higher score generally indicates fewer recent violations and a stronger compliance record, though it does not guarantee that every tap in the city tests identically.

New Orleans, LA is the larger of the two, with 375,202 more residents than Lake Arthur, yet both cities are served by the same number of public water systems (2). This means the difference in population is handled by systems of different scale rather than a different count of utilities — larger systems generally serve more connections and may have more monitoring requirements under the Safe Drinking Water Act.

For residents of either Lake Arthur or New Orleans, the most useful next step is to look up the specific water system that serves your address, since city-wide averages combine results from every system in the area. Visit the Lake Arthur or New Orleans city pages below for a breakdown of local systems, recent violations, and contaminant-specific data, or browse WaterQ's contaminants directory to learn what each measured substance means for health.