WALLA WALLA UNIVERSITY
PWS ID: WA5392470 · Walla Walla, Washington 99362
Population Served
1,273
Total Violations
34
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 460
- County
- Walla Walla
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 28
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Consumer Confidence Rule | Other | 6 | 2025 |
| Coliform (TCR) | MR | 2 | 2012 |
| Picloram | MR | 1 | 2020 |
| Pentachlorophenol | MR | 1 | 2020 |
| Endrin | MR | 1 | 2020 |
| BHC-GAMMA | MR | 1 | 2020 |
| Toxaphene | MR | 1 | 2020 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2020 |
| Atrazine | MR | 1 | 2020 |
| Heptachlor | MR | 1 | 2020 |
| HEXACHLOROBENZENE | MR | 1 | 2020 |
| Benzo(a)pyrene | MR | 1 | 2020 |
| TTHM | MR | 1 | 2022 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2022 |
| Simazine | MR | 1 | 2020 |
| Di(2-ethylhexyl) phthalate | MR | 1 | 2020 |
| Hexachlorocyclopentadiene | MR | 1 | 2020 |
| ETHYLENE DIBROMIDE | MR | 1 | 2020 |
| 2,4,5-TP | MR | 1 | 2020 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2020 |
| Chlordane | MR | 1 | 2020 |
| Heptachlor epoxide | MR | 1 | 2020 |
| Lead and Copper Rule | MR | 1 | 1999 |
| Dalapon | MR | 1 | 2020 |
| Methoxychlor | MR | 1 | 2020 |
| Dinoseb | MR | 1 | 2020 |
| LASSO | MR | 1 | 2020 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1979 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.