Combined Radium (-226 and -228) violations in Washington
13 active public water systems in Washington had a Combined Radium (-226 and -228) violation in the past three years, 1 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 |
|---|---|---|---|---|
|
Two Rivers Resort Wellpinit · County |
480 | 6 | 2 | |
|
Squaxin Consolidated Shelton · County |
1,500 | 6 | 1 | |
|
Makah Neah Bay Neah Bay · County |
1,300 | 11 | 0 | |
|
Skokomish Skokomish Nation · County |
1,150 | 5 | 1 | |
|
Mt. Vista Dungeness Golf Course Sequim · County |
517 | 3 | 0 | |
|
Sackman Suquamish · County |
500 | 2 | 0 | |
|
Nespelem Agency Nespelem · County |
445 | 9 | 0 | |
|
Omak Hud Nespelem · County |
380 | 9 | 0 | |
|
Keller Mallott · County |
340 | 10 | 0 | |
|
McCoy Lake Wellpinit · County |
325 | 6 | 2 | |
|
Rocky River Road Community Site Nespelem · County |
260 | 8 | 0 | |
|
Seatons Grove Nespelem · County |
115 | 9 | 1 | |
|
Malott Nespelem · County |
95 | 9 | 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 Washington 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.