2,4-D violations in Oregon
84 active public water systems in Oregon had a 2,4-D violation in the past three years, 3 of them in the latest quarter of EPA's data. What 2,4-D is and why it matters.
Systems with a 2,4-D violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sumner Water Corporation Coos County |
50 | 10 | 3 | |
|
Galice Subdivision Water CO Josephine County |
33 | 13 | 3 | |
|
Pae Living Building Multnomah County |
25 | 6 | 1 | |
|
Klamath Falls Water Dept Klamath County |
40,475 | 4 | 0 | |
|
Grants Pass, City of Josephine County |
37,138 | 2 | 0 | |
|
Prineville, City of Crook County |
11,000 | 5 | 1 | |
|
Crystal Springs Water District Hood River County |
5,973 | 2 | 0 | |
|
Creswell, City of Lane County |
5,585 | 2 | 1 | |
|
Rivergrove Water District Clackamas County |
4,000 | 2 | 0 | |
|
Coquille, City of Coos County |
3,953 | 5 | 0 | |
|
Warm Springs Water Treatment Plant Warm Springs · County |
3,800 | 16 | 5 | |
|
Harrisburg, City of Linn County |
3,684 | 5 | 1 | |
|
Luckiamute Domestic Water Coop Polk County |
2,738 | 6 | 0 | |
|
Youngs River Lewis & Clark WD Clatsop County |
2,580 | 7 | 0 | |
|
Lakeview, Town of Lake County |
2,476 | 10 | 2 | |
|
Waldport, City of Lincoln County |
2,300 | 3 | 1 | |
|
Clatskanie, City of Columbia County |
2,096 | 5 | 0 | |
|
Warren Water Association Columbia County |
2,050 | 1 | 0 | |
|
City of Rainier Columbia County |
1,932 | 8 | 0 | |
|
Rickreall Water Association Polk County |
1,650 | 6 | 0 | |
|
Usfs Union Creek Complex Jackson County |
1,451 | 4 | 0 | |
|
Port of Morrow Morrow County |
1,350 | 4 | 0 | |
|
Island City Union County |
1,166 | 5 | 2 | |
|
Loves Travel Stop-Boardman Morrow County |
999 | 5 | 1 | |
|
Halsey, City of Linn County |
800 | 3 | 0 | |
|
Neahkahnie Water District Tillamook County |
600 | 4 | 0 | |
|
Knoll Terrace Park Benton County |
452 | 5 | 0 | |
|
Tierra Linda Estates Umatilla County |
450 | 5 | 0 | |
|
Gilchrist Water System LLC Klamath County |
440 | 4 | 1 | |
|
Eagle Crest Mobile Home Park Clackamas County |
300 | 5 | 0 | |
|
Foley Lakes Mobile Home Park Wasco County |
300 | 5 | 0 | |
|
Area 61 Josephine County |
260 | 8 | 1 | |
|
Fernridge Mobile Estates Lane County |
250 | 7 | 1 | |
|
Triangle Lake High/elem SD 90 Lane County |
235 | 6 | 0 | |
|
Domaine Willamette Winery Yamhill County |
200 | 4 | 0 | |
|
Sunshine Plaza Jackson County |
200 | 11 | 1 | |
|
Timber Water Association Washington County |
180 | 9 | 2 | |
|
Clayton Creek MH Estates Jackson County |
165 | 2 | 0 | |
|
Elderberry Nehalem WS Clatsop County |
160 | 8 | 1 | |
|
Adrian, City of Malheur County |
159 | 9 | 0 | |
|
Burns Paiute Burns · County |
155 | 13 | 3 | |
|
Blue River Water District Lane County |
150 | 6 | 0 | |
|
Bridge Water District Coos County |
150 | 6 | 1 | |
|
Eagle Creek School SD 108 Clackamas County |
150 | 3 | 0 | |
|
Jasper Wood Products Lane County |
150 | 7 | 0 | |
|
Salem Mobile Estates/shady Acres Marion County |
150 | 6 | 1 | |
|
Timberline Baptist Church Washington County |
150 | 3 | 0 | |
|
Chateau Mobile Home Park Marion County |
136 | 7 | 1 | |
|
LA Casa Mia Deschutes County |
135 | 5 | 0 | |
|
Rogue Valley Adventist School Jackson County |
135 | 5 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved 2,4-D, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not 2,4-D alone.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Oregon records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.