What was found in Puerto Rico's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Combined Uranium | 1.788 µg/L 6% of the EPA limit 30 µg/L Main supplier: Anaks Condominium · 243 people · 2016 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.2 pCi/L 8% of the EPA limit 15 pCi/L Main supplier: Anaks Condominium · 243 people · 2016 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 0.9350 pCi/L 19% of the EPA limit 5 pCi/L Main supplier: Anaks Condominium · 243 people · 2016 | 1/1 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: Anaks Condominium · 243 people · 2025 | 1/1 | LCR |
Water suppliers serving Puerto Rico
| Supplier | Population served |
|---|---|
| Anaks Condominium | 243 |
Frequently asked questions about Puerto Rico tap water
Is Puerto Rico tap water safe to drink?
EPA testing detected 4 contaminants in the water serving Puerto Rico. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Puerto Rico?
1 public water supplier report drinking-water monitoring for Puerto Rico, MP to the EPA. Each is listed above with its population served.
What contaminants are in Puerto Rico's water?
The contaminants EPA monitoring detected in Puerto Rico include Combined Uranium, Gross Alpha, Excl. Radon And U, Combined Radium (-226 And -228), Lead. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.