PORT OF MATTAWA - IND PARKS 2 & 4
PWS ID: WA53AD049 · Mattawa, Washington 99349
Population Served
110
Total Violations
43
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 5
- County
- Grant
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 43
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 1 | 2021 |
| Hexachlorocyclopentadiene | MR | 1 | 2022 |
| DICHLOROMETHANE | MR | 1 | 2022 |
| o-Dichlorobenzene | MR | 1 | 2022 |
| Pentachlorophenol | MR | 1 | 2022 |
| trans-1,2-Dichloroethylene | MR | 1 | 2022 |
| LASSO | MR | 1 | 2022 |
| 1,2-Dichloropropane | MR | 1 | 2022 |
| Simazine | MR | 1 | 2022 |
| 1,1,2-Trichloroethane | MR | 1 | 2022 |
| Benzo(a)pyrene | MR | 1 | 2022 |
| Tetrachloroethylene | MR | 1 | 2022 |
| Dinoseb | MR | 1 | 2022 |
| Toxaphene | MR | 1 | 2022 |
| Dalapon | MR | 1 | 2022 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2022 |
| BHC-GAMMA | MR | 1 | 2022 |
| cis-1,2-Dichloroethylene | MR | 1 | 2022 |
| Atrazine | MR | 1 | 2022 |
| Vinyl chloride | MR | 1 | 2022 |
| CHLOROBENZENE | MR | 1 | 2022 |
| Toluene | MR | 1 | 2022 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2022 |
| Trichloroethylene | MR | 1 | 2022 |
| Endrin | MR | 1 | 2022 |
| HEXACHLOROBENZENE | MR | 1 | 2022 |
| Styrene | MR | 1 | 2022 |
| 2,4,5-TP | MR | 1 | 2022 |
| 1,1,1-Trichloroethane | MR | 1 | 2022 |
| Ethylbenzene | MR | 1 | 2022 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.