NAHIKU
PWS ID: HI0000220 · WAILUKU, Hawaii 96793-2155
Population Served
107
Total Violations
65
Health-Based Violations
3
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 43
- County
- Maui
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 21
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Di(2-ethylhexyl) adipate | MR | 3 | 2008 |
| Di(2-ethylhexyl) phthalate | MR | 3 | 2008 |
| 2,3,7,8-TCDD | MR | 3 | 2008 |
| CYANIDE | MR | 3 | 2008 |
| Coliform (Pre-TCR) | Other | 3 | 1984 |
| Diquat | MR | 3 | 2008 |
| Coliform (TCR) | MCL | 3 | 1993 |
| Benzo(a)pyrene | MR | 3 | 2008 |
| Endothall | MR | 3 | 2008 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.