RAINBOW COURT
PWS ID: WA5370770 · Prosser, Washington 99350
Population Served
120
Total Violations
32
Health-Based Violations
13
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 28
- County
- Benton
- School/Daycare
- No
- MCL Violations
- 13
- Monitoring Violations
- 15
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MCL | 13 | 2004 |
| Coliform (TCR) | MR | 4 | 2014 |
| Consumer Confidence Rule | Other | 3 | 2023 |
| Nitrate | MR | 1 | 1979 |
| Chromium | MR | 1 | 1979 |
| Arsenic | MR | 1 | 1979 |
| Mercury | MR | 1 | 1979 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1979 |
| Barium | MR | 1 | 1979 |
| Cadmium | MR | 1 | 1979 |
| ETHYLENE DIBROMIDE | MR | 1 | 2004 |
| Selenium | MR | 1 | 1979 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2004 |
| Fluoride | MR | 1 | 1979 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.