CAYEY URBANO
PWS ID: PR0004635 · CAYEY, Puerto Rico 00660
PFAS Detected
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
18,185
Total Violations
438
Health-Based Violations
68
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 6,811
- County
- Cayey Municipio
- School/Daycare
- No
- MCL Violations
- 13
- Monitoring Violations
- 334
- Treatment Tech Violations
- 55
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | TT | 28 | 1999 |
| Lead and Copper Rule | MR | 26 | 2016 |
| CARBON, TOTAL | TT | 18 | 2021 |
| Antimony, Total | MR | 16 | 2007 |
| Thallium, Total | MR | 16 | 2007 |
| Cryptosporidium | MR | 13 | 2018 |
| Coliform (TCR) | MR | 10 | 2014 |
| Turbidity | MR | 10 | 2018 |
| E. COLI | MR | 10 | 2018 |
| Barium | MR | 9 | 2007 |
| Cadmium | MR | 9 | 2007 |
| Selenium | MR | 9 | 2007 |
| Chromium | MR | 9 | 2007 |
| Interim Enhanced Surface Water Treatment Rule | TT | 7 | 2004 |
| Nickel | MR | 7 | 2007 |
| Beryllium, Total | MR | 7 | 2007 |
| Coliform (TCR) | MCL | 6 | 2009 |
| Surface Water Treatment Rule | MR | 6 | 2004 |
| CHLOROBENZENE | MR | 6 | 2008 |
| TTHM | MCL | 6 | 2020 |
| Arsenic | MR | 5 | 2006 |
| 1,2,4-Trichlorobenzene | MR | 4 | 2005 |
| cis-1,2-Dichloroethylene | MR | 4 | 2005 |
| DICHLOROMETHANE | MR | 4 | 2005 |
| o-Dichlorobenzene | MR | 4 | 2005 |
| 1,1-Dichloroethylene | MR | 4 | 2005 |
| 1,2-Dichloroethane | MR | 4 | 2005 |
| Trichloroethylene | MR | 4 | 2005 |
| 1,1,2-Trichloroethane | MR | 4 | 2005 |
| Benzene | MR | 4 | 2005 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 120 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFMPA | 7/29/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFDoA | 7/29/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 7/29/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 7/29/2024 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 7/29/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 7/29/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 7/29/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 7/29/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 7/29/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFBA | 7/29/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| HFPO-DA | 7/29/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 7/29/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 7/29/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 7/29/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFHpS | 7/29/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 7/29/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| lithium | 7/29/2024 | <9 µg/L | 9 µg/L | Not Detected |
| PFDA | 7/29/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 7/29/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 7/29/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFNA | 7/29/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 7/29/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 7/29/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 7/29/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NMeFOSAA | 7/29/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| NEtFOSAA | 7/29/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTrDA | 7/29/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFTA | 7/29/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| 4:2 FTS | 7/29/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFUnA | 7/29/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| HFPO-DA | 4/17/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMBA | 4/17/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTA | 4/17/2024 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 4/17/2024 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 4/17/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 4/17/2024 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFUnA | 4/17/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 4/17/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 9Cl-PF3ONS | 4/17/2024 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| ADONA | 4/17/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 4/17/2024 | 0.0055 µg/L | 0.005 µg/L | Detected |
| 4:2 FTS | 4/17/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 8:2 FTS | 4/17/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| 6:2 FTS | 4/17/2024 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFPeA | 4/17/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 4/17/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 4/17/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 4/17/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFNA | 4/17/2024 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpS | 4/17/2024 | <0.003 µg/L | 0.003 µg/L | Not Detected |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
PFAS data from EPA UCMR5 monitoring program (2023-2025).
This data is provided for informational purposes only.