Results from entry points (water leaving treatment, not household taps) of public water systems sampled under EPA's Fifth Unregulated Contaminant Monitoring Rule. Click a county to see every water system serving it, or turn on service areas and click a location to see the systems that serve that spot.
3 of the 171 public water systems listed for U.S. Virgin Islands were sampled. Sorted by the highest single result relative to EPA's 2024 limits. Each name links to a page with all of that system's results. All 171 U.S. Virgin Islands systems, including those not tested · Download all U.S. Virgin Islands results (CSV, gzip)
| System | PWSID | City | Population | PFOA (ppt) | PFOS (ppt) | HI | Highest single result |
|---|---|---|---|---|---|---|---|
| Nisky Center | VI1000037 | 550 | 5.2 | <MRL | 0 | PFOA 1–3 × its limit | |
| Water And Power Authority - Stt | VI0000443 | Christiansted | 34,000 | <MRL | <MRL | 0 | No PFAS detected |
| Water And Power Authority - Stx | VI0000097 | Christiansted | 35,000 | <MRL | <MRL | 0 | No PFAS detected |
Highest single result for each system; PFOA and PFOS in ppt (ng/L). Entry-point samples, not tap water; screening comparisons, not compliance determinations.