NIULII
Hawaii — Community Water System — PWSID: HI0000139
System Information
| PWSID | HI0000139 |
| System Name | NIULII |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Sep 10, 1979 |
| Last Reported | Dec 8, 2025 |
Location & Contact
| State | Hawaii |
| City | HILO |
| ZIP Code | 96720 |
| Address | DEPARTMENT OF WATER SUPPLY |
| Organization | OKAMOTO, KEITH K. |
| Phone | 808-961-8050 |
Population & Service
| Population Served | 254 |
| Service Connections | 94 |
Drinking Water Violations (2)
This water system has 2 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 31, 1992 | Nov 30, 1992 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Nov 30, 1992 | Total Coliform Rule |
| Oct 31, 1992 | Nov 30, 1992 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Nov 30, 1992 | Total Coliform Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.