Nitrate violations in Oregon
363 active public water systems in Oregon had a Nitrate violation in the past three years, 1 of them in the latest quarter of EPA's data. What Nitrate is and why it matters.
Systems with a Nitrate violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Medford Gold Hill KOA Jackson County |
100 | 7 | 0 | |
|
Merlin Lds Church Josephine County |
100 | 4 | 0 | |
|
Northwest Hazelnut Company Marion County |
100 | 4 | 3 | |
|
Oregon Harvesting Camp 2 Washington County |
100 | 3 | 0 | |
|
Scappoose Brew & Thru Columbia County |
100 | 2 | 0 | |
|
Shell Star Mart Columbia County |
100 | 3 | 0 | |
|
Union Rogue Baptist Camp Jackson County |
100 | 2 | 1 | |
|
Columbia Basin Onion Umatilla County |
97 | 5 | 2 | |
|
Tooley Water District Wasco County |
97 | 6 | 3 | |
|
Sauvie Island Moorage Multnomah County |
96 | 7 | 1 | |
|
Alpine Crest Improvement Dist Marion County |
91 | 4 | 1 | |
|
Alston Country Store Columbia County |
90 | 3 | 1 | |
|
Currinsville Mobile Home Park Clackamas County |
90 | 7 | 2 | |
|
Deer View Cooperative Columbia County |
90 | 6 | 1 | |
|
Farmers Market Jackson County |
90 | 2 | 0 | |
|
Garland Nursery Benton County |
90 | 2 | 0 | |
|
Rock Springs Guest Ranch Deschutes County |
90 | 2 | 0 | |
|
Pacific Blueberry Company Marion County |
89 | 4 | 0 | |
|
Ashland Country Estates Jackson County |
85 | 2 | 0 | |
|
O'brien Mann Speedy Mart Josephine County |
85 | 3 | 1 | |
|
Stoller Family Estate Yamhill County |
85 | 1 | 0 | |
|
62 Burgers and Brew Jackson County |
80 | 2 | 0 | |
|
Soter Vineyards Yamhill County |
80 | 2 | 0 | |
|
Tamarack Mobile Home Park Columbia County |
80 | 4 | 1 | |
|
Trask River RV Park Tillamook County |
80 | 2 | 0 | |
|
Usfs Horseshoe Bend CG Douglas County |
80 | 3 | 0 | |
|
Willamette Pass Resort Klamath County |
80 | 3 | 0 | |
|
Barton Community Baptist Annex Clackamas County |
75 | 2 | 0 | |
|
Baumans Farm and Garden Marion County |
75 | 2 | 0 | |
|
Blm Alsea Falls Camping Benton County |
75 | 2 | 1 | |
|
Camp Myrtlewood Coos County |
75 | 4 | 1 | |
|
Diamond Woods GC Lane County |
75 | 2 | 1 | |
|
Forest Park Mobile Village Clackamas County |
75 | 2 | 0 | |
|
Lake Creek Youth Rec Camp Grant County |
75 | 1 | 0 | |
|
Nps Oregon Caves National Monument O&m Josephine County |
75 | 8 | 0 | |
|
Port of Gold Beach-Huntley Park CG Curry County |
75 | 1 | 0 | |
|
Rellik Winery Jackson County |
75 | 2 | 0 | |
|
Brewster Community Homeowners Marion County |
70 | 6 | 3 | |
|
Community Action Headstart Marion County |
70 | 2 | 0 | |
|
His Valley Church Jackson County |
70 | 2 | 0 | |
|
Laurel Ridge MHP Columbia County |
70 | 3 | 0 | |
|
Power City Water Co-Op Umatilla County |
70 | 5 | 0 | |
|
Zig Zag Mountain Store Clackamas County |
70 | 3 | 0 | |
|
North Bayside Estates-North Coos County |
65 | 7 | 3 | |
|
Elk River Campground Curry County |
64 | 11 | 2 | |
|
Nature Discovery School Lane County |
62 | 5 | 1 | |
|
Bigfoot Acres Jackson County |
60 | 8 | 2 | |
|
Cedarhurst Improvement Club Clackamas County |
60 | 10 | 3 | |
|
Collier Lane HOA Klamath County |
60 | 3 | 0 | |
|
Deer Island Heights WS Columbia County |
60 | 6 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Nitrate, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Nitrate 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.