GUARAGUAO
PWS ID: PR0004114 · PONCE, Puerto Rico 00731
Population Served
961
Total Violations
122
Health-Based Violations
6
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 360
- County
- Ponce Municipio
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 100
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 36 | 2016 |
| Surface Water Treatment Rule | MR | 7 | 2016 |
| Consumer Confidence Rule | Other | 5 | 2022 |
| Nitrate | MR | 5 | 2019 |
| CYANIDE | MR | 5 | 2010 |
| Surface Water Treatment Rule | TT | 4 | 1998 |
| Combined Radium (-226 and -228) | MR | 4 | 2019 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 2019 |
| Radium-226 | MR | 3 | 2019 |
| Simazine | MR | 2 | 2013 |
| Atrazine | MR | 2 | 2013 |
| LASSO | MR | 2 | 2013 |
| TTHM | MR | 2 | 2018 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2018 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 2 | 2020 |
| ETHYLENE DIBROMIDE | MR | 2 | 2020 |
| Selenium | MR | 2 | 1984 |
| Fluoride | MR | 2 | 1984 |
| Chromium | MR | 2 | 1984 |
| Arsenic | MR | 2 | 1984 |
| Barium | MR | 2 | 1984 |
| Cadmium | MR | 2 | 1984 |
| Mercury | MR | 2 | 1984 |
| Coliform (TCR) | MCL | 2 | 2005 |
| Coliform (TCR) | MR | 2 | 2003 |
| E. COLI | MR | 2 | 2019 |
| Cryptosporidium | MR | 2 | 2011 |
| Radium-228 | MR | 1 | 2019 |
| Combined Uranium | MR | 1 | 2019 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.