Combined Radium (-226 and -228) violations in Oregon
132 active public water systems in Oregon had a Combined Radium (-226 and -228) violation in the past three years, 9 of them in the latest quarter of EPA's data. What Combined Radium (-226 and -228) is and why it matters.
Systems with a Combined Radium (-226 and -228) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Country Estates Mobile Park Josephine County |
175 | 6 | 0 | |
|
Mountain Air Water Assoc Clackamas County |
170 | 5 | 0 | |
|
Elderberry Nehalem WS Clatsop County |
160 | 8 | 1 | |
|
Midland Water Association Columbia County |
160 | 8 | 1 | |
|
Sundowner Mobile Home Park Union County |
160 | 2 | 1 | |
|
Blue River Water District Lane County |
150 | 6 | 0 | |
|
Camelot Mobile Home Park Linn County |
150 | 2 | 1 | |
|
Circle C Improvement District Deschutes County |
150 | 4 | 0 | |
|
Crossroads Mobile Home Park Klamath County |
150 | 4 | 1 | |
|
Estacada Mobile Village Clackamas County |
150 | 5 | 0 | |
|
Salem Mobile Estates/shady Acres Marion County |
150 | 6 | 1 | |
|
Table Rock Mobile Estates (north&south) Jackson County |
150 | 2 | 1 | |
|
Grants Pass Mobile Home Park LLC Jackson County |
140 | 5 | 2 | |
|
River Haven Mobile Home Estates Josephine County |
140 | 2 | 0 | |
|
Sleepy Hollow Water District Clackamas County |
135 | 4 | 0 | |
|
Country View MH Estates Jackson County |
132 | 5 | 0 | |
|
Fischers Place MHP Malheur County |
130 | 10 | 4 | |
|
Sidwalter Warm Springs · County |
130 | 10 | 3 | |
|
Wamic Water Association Wasco County |
130 | 2 | 1 | |
|
Chart Subdivision Umatilla County |
125 | 2 | 0 | |
|
Sunset Village MHP Marion County |
120 | 4 | 0 | |
|
Rainbow Rock Village MHP Curry County |
115 | 4 | 0 | |
|
Fir Grove Mobile Court Linn County |
114 | 4 | 2 | |
|
Country View Estates WS Lane County |
104 | 3 | 0 | |
|
Hopewell Water Company Yamhill County |
100 | 4 | 2 | |
|
Jackson Wellsprings Jackson County |
100 | 4 | 0 | |
|
Parkdale Water System Josephine County |
100 | 2 | 0 | |
|
Sunnyview Mobile Home Park Marion County |
100 | 3 | 1 | |
|
Deer View Cooperative Columbia County |
90 | 6 | 1 | |
|
Leisure Days Mobile Home Park Jackson County |
90 | 2 | 0 | |
|
Anglers Cove/schwc Jackson County |
85 | 2 | 0 | |
|
Columbia Hills HOA Columbia County |
84 | 4 | 0 | |
|
Avion WC Klippel Deschutes County |
80 | 1 | 0 | |
|
Country View MHP Josephine County |
80 | 4 | 1 | |
|
Tierra del Mar Water CO Tillamook County |
80 | 4 | 1 | |
|
Oregon Water Utilities-Pinecrest Klamath County |
78 | 2 | 0 | |
|
Mill Mar Estates Irrigation Assoc Jackson County |
75 | 2 | 0 | |
|
Paradise Community Assoc Clackamas County |
75 | 3 | 2 | |
|
Rogue River Mobile Estates Jackson County |
72 | 6 | 1 | |
|
Blue Moon Mobile Home Park Josephine County |
70 | 2 | 0 | |
|
Brewster Community Homeowners Marion County |
70 | 6 | 3 | |
|
Eagle Valley RV Park Douglas County |
70 | 5 | 1 | |
|
Shady Acres Mhp, LLC Jackson County |
70 | 3 | 1 | |
|
Sunset Acres Water Co-Op INC Deschutes County |
70 | 3 | 1 | |
|
Clovercrest Community Water System Josephine County |
65 | 6 | 1 | |
|
Elk River Campground Curry County |
64 | 11 | 2 | |
|
Applegate Mobile Park (lower & Upper) Jackson County |
63 | 2 | 0 | |
|
King Silver RV Park Lincoln County |
62 | 8 | 1 | |
|
Cedarhurst Improvement Club Clackamas County |
60 | 10 | 3 | |
|
Collier Lane HOA Klamath County |
60 | 3 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Combined Radium (-226 and -228), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Combined Radium (-226 and -228) 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.