ALDER CREEK BARLOW WATER DIST
PWS ID: OR4100630 · SANDY, Oregon 97055
Population Served
300
Total Violations
83
Health-Based Violations
8
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 125
- County
- Clackamas
- School/Daycare
- No
- MCL Violations
- 3
- Monitoring Violations
- 70
- Treatment Tech Violations
- 5
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MR | 23 | 2025 |
| Total Haloacetic Acids (HAA5) | MR | 23 | 2025 |
| Lead and Copper Rule | MR | 6 | 2005 |
| Surface Water Treatment Rule | MR | 6 | 2021 |
| Surface Water Treatment Rule | TT | 4 | 2021 |
| Revised Total Coliform Rule | MON | 3 | 2020 |
| Total Haloacetic Acids (HAA5) | MCL | 3 | 2023 |
| Consumer Confidence Rule | Other | 2 | 2025 |
| Public Notice | Other | 2 | 2023 |
| Coliform (TCR) | MR | 1 | 2000 |
| Lead and Copper Rule | TT | 1 | 2002 |
| Nitrate | MR | 1 | 1979 |
| Selenium | MR | 1 | 1979 |
| Mercury | MR | 1 | 1979 |
| Barium | MR | 1 | 1979 |
| Chromium | MR | 1 | 1979 |
| Cadmium | MR | 1 | 1979 |
| Arsenic | MR | 1 | 1979 |
| Fluoride | MR | 1 | 1979 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.