U.S. water systems
Guam Water Systems
Guam
11 community water systems on record — 5 active, 6 inactive.
Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Guam’s official records. Always confirm current status with Guam before making decisions based on this information.
Counties in Guam
All community water systems in Guam
- ANDERSEN AIR FORCE BASE WATER SYSTEMAPO AP · 7,700 servedActive
- EARTH TECH, INC.TAMUNING · 0 servedInactive
- GWA CENTRAL WATER SYSTEMMANGILAO · 21,398 servedActive
- GWA NORTHERN WATER SYSTEMMANGILAO · 139,207 servedActive
- GWA SOUTHERN WATER SYSTEMMANGILAO · 5,801 servedActive
- PUBLIC UTILITY AGENCY OF GUAMAGANA · 6,100 servedInactive
- PUBLIC UTILITY AGENCY OF GUAMAGANA · 2,470 servedInactive
- PUBLIC UTILITY AGENCY OF GUAMAGANA · 3,200 servedInactive
- PUBLIC UTILITY AGENCY OF GUAMAGANA · 50 servedInactive
- PUBLIC UTILITY AGENCY OF GUAMAGANA · 700 servedInactive
- U.S. NAVY WATER SYSTEMFP · 12,780 servedActive
| System name | City | Population served | Status |
|---|---|---|---|
| ANDERSEN AIR FORCE BASE WATER SYSTEM | APO AP | 7,700 | Active |
| EARTH TECH, INC. | TAMUNING | 0 | Inactive |
| GWA CENTRAL WATER SYSTEM | MANGILAO | 21,398 | Active |
| GWA NORTHERN WATER SYSTEM | MANGILAO | 139,207 | Active |
| GWA SOUTHERN WATER SYSTEM | MANGILAO | 5,801 | Active |
| PUBLIC UTILITY AGENCY OF GUAM | AGANA | 6,100 | Inactive |
| PUBLIC UTILITY AGENCY OF GUAM | AGANA | 2,470 | Inactive |
| PUBLIC UTILITY AGENCY OF GUAM | AGANA | 3,200 | Inactive |
| PUBLIC UTILITY AGENCY OF GUAM | AGANA | 50 | Inactive |
| PUBLIC UTILITY AGENCY OF GUAM | AGANA | 700 | Inactive |
| U.S. NAVY WATER SYSTEM | FP | 12,780 | Active |