Diamond Water Gualo Rai
MP — Community Water System — PWSID: MP0000221
System Information
| PWSID | MP0000221 |
| System Name | Diamond Water Gualo Rai |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Feb 23, 2016 |
| Last Reported | Dec 19, 2025 |
Location & Contact
| State | MP |
| City | SAIPAN |
| ZIP Code | 96950 |
| Address | PMB 156 BOX 10003 |
| Organization | Diamond Ice & Water |
| Phone | 6703223222 |
Population & Service
| Population Served | 55 |
| Service Connections | 1 |
Drinking Water Violations (4)
This water system has 4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 15, 2024 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Apr 1, 2025 | Ground Water Rule |
| Aug 15, 2024 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Apr 1, 2025 | Ground Water Rule |
| Jan 1, 2023 | Dec 31, 2023 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2023 | Nitrate Rule |
| Nov 13, 2021 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Apr 26, 2022 | Ground Water 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.