Gwa Central Water System
PWSID: GU0000003
System Details
| Population Served | 21,398 |
| Service Connections | 3,295 |
| Water Source | Surface Water Purchased |
| System Type | Community Water System |
| Owner | State |
| Status | Active |
| City | Mangilao |
| Zip Code | 96913 |
Areas Served
- Adelup,agana Heights,agat,anigua,apra Heights,asan,pigo,piti,santa Rita, Guam County
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Copper (90th percentile) | 240.0000 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Lead (90th percentile) | 0.0012 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0011 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0011 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0008 mg/L | 0.015 mg/L | Below Action Level |
Violation History (13 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2022-04-01 | Yes | Returned to Compliance |
| | 2022-04-01 | Yes | Returned to Compliance |
| | 2022-04-01 | Yes | Returned to Compliance |
| | 2022-04-01 | Yes | Returned to Compliance |
| | 2012-01-01 | | Returned to Compliance |
| | 2011-10-01 | | Returned to Compliance |
| | 2011-07-01 | | Returned to Compliance |
| | 2011-04-01 | | Returned to Compliance |
| | 2011-01-01 | | Returned to Compliance |
| | 2010-10-01 | | Returned to Compliance |
| | 2010-07-01 | | Returned to Compliance |
| | 2010-04-01 | | Returned to Compliance |
| | 1992-07-01 | | Returned to Compliance |