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PUBLIC WATER SYSTEM REPORT

Is GWA SOUTHERN WATER SYSTEM Water Safe to Drink in 2026?

Guam · PWSID GU0000001 · Surface water

Population served
5,801
Cities served
TALOFOFO, UNATAC
State / jurisdiction
Guam (GU)
PWSID
GU0000001
F
TAP WATER GRADE
High risk
Model score 30/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
24 violation record(s) in the latest EPA SDWA quarterly snapshot

Water operator? Publish your official 2027 CCR here — residents already find this page. Claim free →

CONTAMINANTS — EPA UCMR5 MONITORING

No UCMR5 PFAS detects on file for this PWS in our bundled national dataset — the system may be smaller than UCMR5 thresholds, had non-detects, or results are not yet linked to this ID. Your retailer Annual Water Quality Report lists other regulated contaminants (chlorine, DBPs, nitrates, etc.).

VIOLATIONS HISTORY (FEDERAL SNAPSHOT)

EPA’s national SDWA quarterly files associate 24 violation-related records with this system in the same reporting quarter as the utility snapshot used on WaterCheckup. This is not a complete historical docket — see ECHO and SDWIS for full compliance context.

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WHAT TO DO ABOUT IT

Based on GWA SOUTHERN WATER SYSTEM's monitoring and violation profile, here are vetted filtration options — same picks framework as our city reports.

TOP PICKS FOR GWA SOUTHERN WATER SYSTEM
⚠ EPA violations / contaminants in monitoring data
#1
Waterdrop G3P800 RO
EDITORS PICK
Waterdrop  ·  ~$849
Tankless 800 GPD, removes 99%+ PFAS & lead, 10-stage filtration. Smart faucet TDS display.
WHY THIS FOR GWA SOUTHERN WATER SYSTEM · Chosen for GWA SOUTHERN WATER SYSTEM because the latest federal SDWA snapshot lists substantial violation activity. Certified reverse osmosis provides the broadest residential barrier for households that want margin beyond legal compliance.
#2
Aquasana SmartFlow RO
MOST CERTIFIED
Aquasana  ·  ~$449
WQA Gold Seal + NSF 42/53/58/401. Most certifications of any under-sink RO. Removes 90+ contaminants.
#3
AquaTru Under-Sink RO
EASIEST FILTER CHANGE
AquaTru  ·  ~$375
NSF 42/53/58 certified. Quick-change filters, no tools. Compact tankless design, 4-stage filtration.
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STAY INFORMED
Get water quality alerts for GWA SOUTHERN WATER SYSTEM

We'll notify you when new PFAS data, EPA violations, or contamination alerts affect GWA SOUTHERN WATER SYSTEM (PWS GU0000001). One email, no spam, unsubscribe any time.

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