ONSLOW WTR AND SEWER AUTHORITY Water Quality Report
Population
156,755
people served
Water Source
🏔️ Ground
wells & aquifers
National Rank
Top 94%
of 49,184 US systems
5-Year Record
⚠️ 15
violations recorded
D
Poor
Safety Grade
15 violations in the past 5 years, including 2 health-based
System Details
- PWSID
- NC0467035
- Population Served
- 156,755
- Water Source
- Ground Water
- Owner
- Local Government
- State
- North Carolina
- EPA Region
- 4
Contaminants of Concern
| Contaminant | Status | Violations |
|---|---|---|
| Contaminant 5000 | ⚠ Monitoring/Reporting | 2 |
| Total Coliform | ⚠ Monitoring/Reporting | 2 |
| Contaminant 0600 | ⚠ Monitoring/Reporting | 1 |
| Contaminant 7500 | ⚠ Monitoring/Reporting | 6 |
| Contaminant 8000 | ⚠ Monitoring/Reporting | 9 |
| Total Trihalomethanes (TTHMs) | ⚠ Monitoring/Reporting | 1 |
| Haloacetic Acids (HAA5) | ⚠ Monitoring/Reporting | 1 |
| Contaminant 5200 | ✕ Health-Based | 4 |
Violation History
2024
8
2023
7
2020
2
2019
2
2014
2
2010
2
2009
1
2007
1
2006
1
Total violations on record: 26
Service Area
Cities Served
ZIP Codes Served
Recommended Water Filters
Based on contaminants detected in this water system:
Activated Carbon Filter
Effective for chlorine, THMs, pesticides, and taste/odor improvement
Removes: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)
UV Water Purifier
Kills bacteria and viruses without chemicals
Removes: Total Coliform
How does this compare?
This systemNational average
Grade D
Avg: B-C
26violations total
93% of national average
National avg: ~28 per system
🏙️ This is a large system — serving 23× more people than the national average.