Antimony violations in Oregon
13 active public water systems in Oregon had a Antimony violation in the past three years. What Antimony is and why it matters.
Health effects: Long-term exposure to antimony in drinking water is associated with increased blood cholesterol, decreased blood glucose, and potential cardiovascular effects. Animal studies suggest reproductive and developmental toxicity at elevated doses. EPA classifies it as a possible human carcinogen (Group C) based on animal data.
Systems with a Antimony violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Tigard, City of Washington County |
62,500 | 2 | 0 | |
|
Warm Springs Water Treatment Plant Warm Springs · County |
3,800 | 16 | 5 | |
|
Rickreall Water Association Polk County |
1,650 | 6 | 0 | |
|
Interlachen Water Pud Multnomah County |
360 | 7 | 0 | |
|
Area 61 Josephine County |
260 | 8 | 1 | |
|
Sunshine Plaza Jackson County |
200 | 11 | 1 | |
|
Burns Paiute Burns · County |
155 | 13 | 3 | |
|
Medford Gold Hill KOA Jackson County |
100 | 7 | 0 | |
|
Currinsville Mobile Home Park Clackamas County |
90 | 7 | 2 | |
|
Nps Oregon Caves National Monument O&m Josephine County |
75 | 8 | 0 | |
|
Galice Subdivision Water CO Josephine County |
33 | 13 | 3 | |
|
Big Oak Marina Multnomah County |
30 | 9 | 2 | |
|
Kashmir Business Park LLC Marion County |
30 | 7 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Antimony, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Antimony 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.