Graystone WS
PWS ID: WA53AD688 · Pasco, Washington 99301
Population Served
94
Total Violations
14
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 10
- County
- Franklin
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 14
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MR | 1 | 2020 |
| Barium | MR | 1 | 2020 |
| Cadmium | MR | 1 | 2020 |
| CYANIDE | MR | 1 | 2020 |
| Fluoride | MR | 1 | 2020 |
| Nitrite | MR | 1 | 2020 |
| Antimony, Total | MR | 1 | 2020 |
| Beryllium, Total | MR | 1 | 2020 |
| Thallium, Total | MR | 1 | 2020 |
| Lead and Copper Rule | MR | 1 | 2022 |
| Nickel | MR | 1 | 2020 |
| Mercury | MR | 1 | 2020 |
| Chromium | MR | 1 | 2020 |
| Selenium | MR | 1 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.