Saipan, Northern Mariana Islands Water Quality Report
Water quality data for 43 water systems serving 62,763 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| 6:2 FTS | 0.013 | No federal limit | — | — | No federal limit |
| lithium | 58.4 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 584% | Above guideline |
| PFBA | 0.032 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFBS | 0.015 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHpA | 0.023 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxA | 0.122 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxS | 0.020 | 0.010 ug/L | 0.001 ug/L(EWG) | 196% | Above limit |
| PFOS | 0.032 | 0.004 ug/L | 0.300 ug/L(EWG) | 802% | Above limit |
| PFPeA | 0.134 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFPeS | 0.005 | No federal limit | — | — | No federal limit |
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
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Compliance & Violations
Active Violations (7)
52
Jan 1, 2025
52
Jan 1, 2025
52
Jan 1, 2025
52
Jul 1, 2024
52
Jan 1, 2024
34
Oct 1, 2023
75
Jan 1, 2023
Resolved Violations (493)
45
May 23, 2025
75
May 23, 2025
75
May 23, 2025
45
May 23, 2025
45
Aug 15, 2024
+ 488 more resolved violations
Frequently Asked Questions
Is Saipan tap water safe to drink?
Saipan's water has 2 contaminants detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in Saipan tap water?
10 contaminants have been detected in Saipan's water supply across 43 water systems. See the full contaminant table above for details.
How can I improve my water quality in Saipan?
Install a water filter rated for the specific contaminants found in Saipan's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Saipan have any water quality violations?
Yes, Saipan currently has 48 active violations. See the violations section above for details.