CUYAMACA
PWS ID: 105300089 · OLYMPIA, 10 98513
Population Served
375
Total Violations
500
Health-Based Violations
1
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 71
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 485
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 55 | 2015 |
| Nitrate | MR | 12 | 2023 |
| Consumer Confidence Rule | Other | 12 | 2015 |
| Benzene | MR | 9 | 2005 |
| Atrazine | MR | 9 | 2005 |
| Antimony, Total | MR | 8 | 2005 |
| Arsenic | MR | 7 | 2005 |
| Barium | MR | 7 | 2005 |
| Cadmium | MR | 7 | 2005 |
| CYANIDE | MR | 7 | 2005 |
| Beryllium, Total | MR | 7 | 2005 |
| Endrin | MR | 7 | 2005 |
| Toxaphene | MR | 7 | 2005 |
| Glyphosate | MR | 7 | 2005 |
| OXAMYL | MR | 7 | 2005 |
| Simazine | MR | 7 | 2005 |
| Dinoseb | MR | 7 | 2005 |
| 2,3,7,8-TCDD | MR | 7 | 2005 |
| 2,4-D | MR | 7 | 2005 |
| HEXACHLOROBENZENE | MR | 7 | 2005 |
| cis-1,2-Dichloroethylene | MR | 7 | 2005 |
| Xylenes, Total | MR | 7 | 2005 |
| Chlordane | MR | 7 | 2005 |
| ETHYLENE DIBROMIDE | MR | 7 | 2005 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 7 | 2005 |
| Toluene | MR | 7 | 2005 |
| Carbon tetrachloride | MR | 7 | 2005 |
| Ethylbenzene | MR | 7 | 2005 |
| 1,2-Dichloroethane | MR | 7 | 2005 |
| Benzo(a)pyrene | MR | 7 | 2005 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.