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Water system · PWSID MP0000001

Commonwealth Utilities Corp (Saipan)

Saipan, MP · ~48,524 people served

Check your exact address → Saipan overview
62
Fair
PurityRadar safety score

PWSID

MP0000001

State

Northern Mariana Islands

City

Saipan

Population served

48,524

Primary source

Groundwater

Score history

▼ 38 points — the score moved from 100 to 62 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 62

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Sep 2024). Levels in parts per trillion (ppt).

PFHxS

Perfluorohexanesulfonic acid

13 ppt

limit 10 ppt

Above EPA limit · 1.3×

PFOS

Perfluorooctanesulfonic acid

4 ppt

limit 4 ppt

Near EPA limit

Lithium

9,430 ppt

limit —

No federal limit

PFBA

32 ppt

limit —

No federal limit

PFHxA

12 ppt

limit —

No federal limit

6:2 FTS

9.7 ppt

limit —

No federal limit

PFPeS

5.4 ppt

limit —

No federal limit

PFHpA

5 ppt

limit —

No federal limit

PFBS

3.6 ppt

limit —

No federal limit

PFPeA

3.2 ppt

limit —

No federal limit

Violations & enforcement

59

Violations on record

0

Unaddressed

40

Health-based

70

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2023. Official EPA record →

Max contaminant level (MCL) · Lead & Copper Rule health-based began Nov 2023 Resolved
Treatment technique · Lead & Copper Rule health-based began Oct 2023 Resolved
Treatment technique · EPA contaminant 0700 health-based began Dec 2021 Resolved
Treatment technique · EPA contaminant 0700 health-based began Sep 2021 Resolved
Treatment technique · EPA contaminant 0700 health-based began Apr 2021 Resolved
Treatment technique · EPA contaminant 0700 health-based began Apr 2021 Resolved
Treatment technique · EPA contaminant 0700 health-based began Oct 2019 Resolved
Treatment technique · EPA contaminant 0700 health-based began Oct 2019 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Oct 2019 Resolved
Treatment technique · EPA contaminant 0700 health-based began Mar 2019 Resolved
Treatment technique · EPA contaminant 0700 health-based began Mar 2019 Resolved
Treatment technique · EPA contaminant 0700 health-based began Mar 2019 Resolved

Recent enforcement actions

  • State action · SOX Nov 2023
  • State action · SOX Oct 2023
  • State action · SOX Apr 2022
  • State action · SOX Jan 2022
  • State action · SOX Jan 2022
  • State action · SOX Jan 2022
  • State action · SOX Jan 2022
  • State action · SOX Jan 2022

This profile is built from EPA public records for system MP0000001 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.