FARALLON
PWS ID: PR0004925 · CAYEY, Puerto Rico 00736
Population Served
38,977
Total Violations
390
Health-Based Violations
43
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 14,598
- County
- Cayey Municipio
- School/Daycare
- No
- MCL Violations
- 6
- Monitoring Violations
- 335
- Treatment Tech Violations
- 37
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | TT | 28 | 2023 |
| Lead and Copper Rule | MR | 24 | 2016 |
| Antimony, Total | MR | 21 | 2007 |
| Thallium, Total | MR | 20 | 2007 |
| Arsenic | MR | 16 | 2007 |
| Beryllium, Total | MR | 15 | 2007 |
| Cryptosporidium | MR | 14 | 2018 |
| Chromium | MR | 12 | 2007 |
| Selenium | MR | 12 | 2007 |
| Barium | MR | 12 | 2007 |
| Cadmium | MR | 12 | 2007 |
| Nickel | MR | 12 | 2007 |
| E. COLI | MR | 10 | 2018 |
| Turbidity | MR | 10 | 2018 |
| Coliform (TCR) | MR | 9 | 2014 |
| CARBON, TOTAL | TT | 9 | 2010 |
| Coliform (TCR) | MCL | 6 | 2012 |
| Mercury | MR | 6 | 2007 |
| cis-1,2-Dichloroethylene | MR | 5 | 2017 |
| Vinyl chloride | MR | 5 | 2017 |
| 1,1-Dichloroethylene | MR | 5 | 2017 |
| 1,2-Dichloroethane | MR | 5 | 2017 |
| 1,1,1-Trichloroethane | MR | 5 | 2017 |
| Carbon tetrachloride | MR | 5 | 2017 |
| Tetrachloroethylene | MR | 5 | 2017 |
| CHLOROBENZENE | MR | 5 | 2017 |
| 1,2,4-Trichlorobenzene | MR | 5 | 2017 |
| Xylenes, Total | MR | 5 | 2017 |
| p-Dichlorobenzene | MR | 5 | 2017 |
| trans-1,2-Dichloroethylene | MR | 5 | 2017 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.