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PUBLIC WATER SYSTEM REPORT
Is Commonwealth Utilities Corp (Saipan) Water Safe to Drink in 2026?
Northern Mariana Islands · PWSID MP0000001 · Ground water
Population served
48,524
Cities served
Saipan
State / jurisdiction
Northern Mariana Islands (MP)
PWSID
MP0000001
F
TAP WATER GRADE
High Risk
Model score 35/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
80 violation record(s) in the latest EPA SDWA quarterly snapshotPFAS above EPA MCL (UCMR5 regulated compounds)
CONTAMINANTS — EPA UCMR5 MONITORING
Compound
Level (ppt)
EPA limit
Health guideline
Status
PFPeA
133.8
—
Within / n/a
Unregulated (monitored)
PFHxA
121.6
—
Within / n/a
Unregulated (monitored)
PFBA
32.3
—
Within / n/a
Unregulated (monitored)
PFOSregulated
32.1
4 ppt
Exceeds
Above health advisory
PFHpA
22.9
—
Within / n/a
Unregulated (monitored)
PFHxSregulated
19.6
10 ppt
Exceeds
Above health advisory
PFBS
14.6
—
Within / n/a
Unregulated (monitored)
6:2 FTS
12.5
—
Within / n/a
Unregulated (monitored)
PFPeS
5.4
—
Within / n/a
Unregulated (monitored)
Source: EPA UCMR5 · ppt = parts per trillion · MCL = enforceable limit for regulated PFAS
Official Consumer Confidence Report (CCR)
📋 The official 2026 CCR for Commonwealth Utilities Corp (Saipan) has not yet been published on WaterCheckup.
Are you the water operator for Commonwealth Utilities Corp (Saipan)? Publish your official CCR here for free — your customers are already finding this page.
Residents: Your public water system is required by EPA to publish an annual CCR by July 1st each year. Contact Commonwealth Utilities Corp (Saipan)directly to request a copy, or check the EPA's national CCR portal at cfpub.epa.gov/ccr.
VIOLATIONS HISTORY (FEDERAL SNAPSHOT)
EPA’s national SDWA quarterly files associate 80 violation-related records with this system in the same reporting quarter as the public water system snapshot used on WaterCheckup. This is not a complete historical docket — see ECHO and SDWIS for full compliance context.
Based on Commonwealth Utilities Corp (Saipan)'s monitoring and violation profile, here are vetted filtration options — same picks framework as our city reports.
Certified Filter Recommendations
Matched to what's actually in your water
TOP PICKS FOR COMMONWEALTH UTILITIES CORP (SAIPAN)
⚠ EPA violations / contaminants in monitoring data
WHY THIS FOR COMMONWEALTH UTILITIES CORP (SAIPAN) · Chosen for Commonwealth Utilities Corp (Saipan) because PFAS was detected at 133.8 ppt in UCMR5 — above the 4 ppt limit for some regulated compounds — and this system shows 80 violation record(s) in the latest federal snapshot. RO removes 99%+ of PFAS at the tap.
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