Loading water data...
Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
Water quality data for 1 cities serving 379,405 residents
Orleans County in Louisiana has an average water quality score of 82/100 (Grade B+) based on analysis of 1 municipal water systems. The county's water systems serve approximately 379,405 residents.
Overall, Orleans County demonstrates good water quality standards. 1 of 1 cities exceed the county average, with New Orleans leading with a score of 82/100.
1 cities ranked by water quality score
| Rank | City | Score | Grade | Population |
|---|---|---|---|---|
| 1 | New Orleans Top concern: Haloacetic Acids (20.3% of limit) | 82 | B+ | 379,405 |
Top detected contaminants across county water systems
| Contaminant | Avg Level | Max Level | EPA Limit | % of Limit | Cities |
|---|---|---|---|---|---|
| Haloacetic Acids | 12.164 ug/L | 12.164 ug/L | 60 ug/L | 20.3% | 1 |
| Fluoride | 0.684 mg/L | 0.684 mg/L | 4 mg/L | 17.1% | 1 |
| Total Trihalomethanes | 10.02 ug/L | 10.02 ug/L | 80 ug/L | 12.5% | 1 |
| Nitrate | 0.899 mg/L | 0.899 mg/L | 10 mg/L | 9% | 1 |
| Mercury | 0 mg/L | 0 mg/L | 0.002 mg/L | 5% | 1 |
| Lead | 0.001 mg/L | 0.001 mg/L | 0.015 mg/L | 4% | 1 |
| Copper | 0.047 mg/L | 0.047 mg/L | 1.3 mg/L | 3.6% | 1 |
| Arsenic | 0 mg/L | 0 mg/L | 0.01 mg/L | 3% | 1 |
Recent violations across county water systems
Water quality in Orleans County, Louisiana reflects the region's unique combination of water sources, treatment infrastructure, and environmental factors. Our comprehensive analysis examines 1 municipal water systems serving a combined population of over 379,405 residents.
The county shows strong water quality performance, with scores ranging from 82/100 in New Orleans to 82/100 in New Orleans. This 0-point spread indicates relatively consistent water quality standards across municipal systems.
The most prevalent contaminants detected across Orleans County water systems include Haloacetic Acids, Fluoride, Total Trihalomethanes. All monitored contaminants remain within acceptable levels relative to EPA Maximum Contaminant Levels (MCLs).
Orleans County's water quality is generally good. Residents can feel confident in their tap water quality, though those with specific health concerns or sensitivity to certain contaminants may still benefit from filtration. Regular review of your city's annual Consumer Confidence Report is recommended.
Orleans County has an average water quality score of 82/100 (Grade B+) based on analysis of 1 municipal water systems serving 379,405 residents.
New Orleans has the highest water quality score in Orleans County at 82/100. View the detailed report for New Orleans.
Most cities in Orleans County have water that meets EPA standards. However, a water filter can provide additional protection and improve taste. The need depends on your specific city and any personal health considerations.
Click on any city in the rankings table above to view its detailed water quality report, including contaminant levels, EPA compliance history, and filter recommendations.