RAINIER TRACTS WATER ASSN
PWS ID: WA5370910 · Moses Lake, Washington 98837
Population Served
61
Total Violations
193
Health-Based Violations
4
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 20
- County
- Adams
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 178
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 22 | 2025 |
| Coliform (TCR) | MR | 22 | 2000 |
| Dalapon | MR | 8 | 2007 |
| Dinoseb | MR | 8 | 2007 |
| 2,4,5-TP | MR | 8 | 2007 |
| Pentachlorophenol | MR | 8 | 2007 |
| Picloram | MR | 8 | 2007 |
| Arsenic | MR | 5 | 2017 |
| Consumer Confidence Rule | Other | 4 | 2025 |
| Lead and Copper Rule | MR | 4 | 2019 |
| Coliform (TCR) | MCL | 4 | 1991 |
| Barium | MR | 3 | 2011 |
| Chromium | MR | 3 | 2011 |
| Fluoride | MR | 3 | 2011 |
| Selenium | MR | 3 | 2011 |
| Cadmium | MR | 3 | 2011 |
| Mercury | MR | 3 | 2011 |
| Endrin | MR | 2 | 2017 |
| Di(2-ethylhexyl) adipate | MR | 2 | 2017 |
| Atrazine | MR | 2 | 2017 |
| LASSO | MR | 2 | 2017 |
| Heptachlor | MR | 2 | 2017 |
| Heptachlor epoxide | MR | 2 | 2017 |
| Benzo(a)pyrene | MR | 2 | 2017 |
| Chlordane | MR | 2 | 2017 |
| CYANIDE | MR | 2 | 2011 |
| Nitrite | MR | 2 | 2011 |
| Beryllium, Total | MR | 2 | 2011 |
| Thallium, Total | MR | 2 | 2011 |
| Di(2-ethylhexyl) phthalate | MR | 2 | 2017 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.