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 |
|---|---|---|---|---|
|
Green Acres RV Park Deschutes County |
135 | 3 | 0 | |
|
Lazy Days Mobile Home Park Lane County |
52 | 5 | 0 | |
|
Laurel Acres Water CO INC Washington County |
50 | 4 | 0 | |
|
Sumner Water Corporation Coos County |
50 | 10 | 3 | |
|
Deer Island Village Mhp-Fawn Lane Columbia County |
50 | 2 | 0 | |
|
Shady Acres RV Park Josephine County |
48 | 3 | 0 | |
|
Zoomtown RV Park Josephine County |
46 | 8 | 2 | |
|
Applegate Trail RV Park Douglas County |
32 | 2 | 0 | |
|
Watsonville Water System Coos County |
27 | 9 | 4 | |
|
Milwaukie, City of Clackamas County |
20,946 | 6 | 1 | |
|
The Dalles, City of Wasco County |
13,010 | 5 | 1 | |
|
Green Area Water & Sanitary Authority Douglas County |
7,000 | 3 | 0 | |
|
Sheridan, City of Yamhill County |
6,494 | 7 | 0 | |
|
Warm Springs Water Treatment Plant Warm Springs · County |
3,800 | 16 | 5 | |
|
Luckiamute Domestic Water Coop Polk County |
2,738 | 6 | 0 | |
|
Waldport, City of Lincoln County |
2,300 | 3 | 1 | |
|
Willamina, City of Yamhill County |
2,239 | 1 | 0 | |
|
Stanfield, City of Umatilla County |
2,115 | 2 | 0 | |
|
Clatskanie, City of Columbia County |
2,096 | 5 | 0 | |
|
Fairview Water District Tillamook County |
1,930 | 5 | 1 | |
|
Brownsville, City of Linn County |
1,906 | 6 | 0 | |
|
Amity, City of Yamhill County |
1,810 | 6 | 0 | |
|
Neskowin Reg Water Dist Tillamook County |
1,735 | 2 | 0 | |
|
Salmon Valley Water Company Clackamas County |
1,500 | 2 | 0 | |
|
Bay City Water System Tillamook County |
1,400 | 4 | 0 | |
|
Chiloquin Municipal Water Dept Klamath County |
730 | 4 | 1 | |
|
Dufur, City of Wasco County |
610 | 2 | 1 | |
|
Beaver Water District Tillamook County |
600 | 4 | 0 | |
|
Mapleton Water District Lane County |
600 | 8 | 0 | |
|
Interlachen Water Pud Multnomah County |
360 | 7 | 0 | |
|
Rogue Lea Estates-North/south Josephine County |
350 | 2 | 0 | |
|
Wallowa Lake CO Service Dist Wallowa County |
350 | 5 | 1 | |
|
Row River Valley Water Dist Lane County |
340 | 7 | 1 | |
|
Bly Water District Klamath County |
310 | 5 | 2 | |
|
Carolina Water System Marion County |
300 | 7 | 1 | |
|
Eagle Crest Mobile Home Park Clackamas County |
300 | 5 | 0 | |
|
Kelso Water Assn Clackamas County |
300 | 8 | 0 | |
|
Oregon Shores Recreation Club Klamath County |
275 | 4 | 0 | |
|
Silver Spur RV Park LLC Marion County |
275 | 6 | 1 | |
|
Rufus Public Works Sherman County |
270 | 4 | 0 | |
|
Westfir, City of Lane County |
268 | 4 | 0 | |
|
Lone Oak Estates Linn County |
258 | 2 | 0 | |
|
Diamond Hill RV Park Linn County |
253 | 2 | 0 | |
|
Fernridge Mobile Estates Lane County |
250 | 7 | 1 | |
|
Round Lake Water Utilities Klamath County |
250 | 4 | 1 | |
|
Willow Estates Mobile Home PK Josephine County |
250 | 2 | 0 | |
|
Arrowhead Mobile Home Park Marion County |
220 | 2 | 0 | |
|
Nps Annie Springs Klamath County |
200 | 2 | 0 | |
|
Surfwood Villa HOA Marion County |
200 | 3 | 1 | |
|
Wauna Water District Clatsop County |
188 | 3 | 1 |
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.