GWA CENTRAL WATER SYSTEM
PWSID: GU0000003 · Mangilao, GU · Serves 21,398 people
According to EPA Safe Drinking Water Information System (SDWIS), GWA CENTRAL WATER SYSTEM (PWSID GU0000003) in Mangilao, GU is listed as a CWS water system covering about 21,398 people. The same extract lists 4 health-based violation records spanning 2022-2022. Those 4 health-based rows for GWA CENTRAL WATER SYSTEM cover contaminants such as Revised Total Coliform Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
GWA CENTRAL WATER SYSTEM has 4 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 1 distinct EPA contaminant code appears in this system's record, including Revised Total Coliform Rule. Recorded violations span 2022–2022. Day-to-day primacy enforcement for this system runs through the Guam drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Guam state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- GU0000003
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Mangilao, GU
- Population Served
- 21,398
- Health Violations
- Yes (4)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Revised Total Coliform Rule | 4 | 4 |
Violation History (4)
| Contaminant | Health | Date |
|---|---|---|
| Revised Total Coliform Rule | Yes | Apr 1, 2022 |
| Revised Total Coliform Rule | Yes | Apr 1, 2022 |
| Revised Total Coliform Rule | Yes | Apr 1, 2022 |
| Revised Total Coliform Rule | Yes | Apr 1, 2022 |
Frequently Asked Questions
What does EPA SDWIS list for GWA CENTRAL WATER SYSTEM?
How many people does GWA CENTRAL WATER SYSTEM serve?
What violations does GWA CENTRAL WATER SYSTEM have?
What contaminants have been found in GWA CENTRAL WATER SYSTEM water?
Compare beyond Guam
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest GWA CENTRAL WATER SYSTEM on cumulative violation count (4) and EPA-reported population served (21,398). Violation-count peers include Santo Domingo Pueblo, Isleta Eastside, PARSHALL-LUCKY MOUND. Population peers include ST. LUCIE WEST SERVICES DISTRICT, PORT HUENEME CITY WATER DEPT, AUBURN HILLS.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
GWA CENTRAL WATER SYSTEM (GU0000003) is drawn from EPA SDWIS. Nearby county systems in this extract include GWA NORTHERN WATER SYSTEM; GWA SOUTHERN WATER SYSTEM. Health-based rows (4 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.