MANGILAO, GU · Guam County
GWA NORTHERN WATER SYSTEM Water System
Consumer Confidence Report status
GWA NORTHERN WATER SYSTEM must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for GWA NORTHERN WATER SYSTEM.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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.
System facts
- System ID (PWSID)
- GU0000006
- System type
- Community Water System
- Population served
- 139,207
- Service connections
- 39,541
- Ownership
- state government
- Water source
- groundwater (wells)
GWA NORTHERN WATER SYSTEM serves 139,207 people from groundwater, placing it in the more than 100,000 people size category.
As of August 1, 2026, EPA's published records contain no violations for this system.
Violation history
No violations on record for this system.
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is GWA NORTHERN WATER SYSTEM required to publish a Consumer Confidence Report?
- Yes. GWA NORTHERN WATER SYSTEM is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is GWA NORTHERN WATER SYSTEM’s next Consumer Confidence Report due?
- GWA NORTHERN WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does GWA NORTHERN WATER SYSTEM have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for GWA NORTHERN WATER SYSTEM.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
BORDALLO, MIGUEL
671-300-6845
MANGILAO, GU 96913