ZIG ZAG WATER CO-OP
PWS ID: OR4101241 · WELCHES, Oregon 97067
Population Served
60
Total Violations
147
Health-Based Violations
18
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 46
- County
- Clackamas
- School/Daycare
- No
- MCL Violations
- 12
- Monitoring Violations
- 125
- Treatment Tech Violations
- 6
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 19 | 2014 |
| Coliform (TCR) | MCL | 12 | 2003 |
| Nitrate | MR | 10 | 2021 |
| Combined Uranium | MR | 9 | 2014 |
| Combined Radium (-226 and -228) | MR | 8 | 2014 |
| Lead and Copper Rule | TT | 6 | 2000 |
| TTHM | MR | 5 | 2022 |
| Total Haloacetic Acids (HAA5) | MR | 5 | 2022 |
| Lead and Copper Rule | MR | 4 | 2013 |
| COLIPHAGE | MR | 3 | 2013 |
| Endrin | MR | 2 | 1996 |
| HEXACHLOROBENZENE | MR | 2 | 1996 |
| Methoxychlor | MR | 2 | 1996 |
| Total Polychlorinated Biphenyls (PCB) | MR | 2 | 1996 |
| Toxaphene | MR | 2 | 1996 |
| 1,1-Dichloroethylene | MR | 2 | 1996 |
| cis-1,2-Dichloroethylene | MR | 2 | 1996 |
| Ethylbenzene | MR | 2 | 1996 |
| CHLOROBENZENE | MR | 2 | 1996 |
| p-Dichlorobenzene | MR | 2 | 1996 |
| Styrene | MR | 2 | 1996 |
| trans-1,2-Dichloroethylene | MR | 2 | 1996 |
| Trichloroethylene | MR | 2 | 1996 |
| Consumer Confidence Rule | Other | 2 | 2023 |
| BHC-GAMMA | MR | 2 | 1996 |
| Vinyl chloride | MR | 2 | 1996 |
| DICHLOROMETHANE | MR | 2 | 1996 |
| Heptachlor | MR | 2 | 1996 |
| 1,2-Dichloropropane | MR | 2 | 1996 |
| Tetrachloroethylene | MR | 2 | 1996 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.