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 |
|---|---|---|---|---|
|
Trail Christian Fellowship Jackson County |
151 | 3 | 1 | |
|
Blue River Water District Lane County |
150 | 6 | 0 | |
|
Canyonview Camp Marion County |
150 | 3 | 0 | |
|
Crawfordsville Market Linn County |
150 | 2 | 0 | |
|
Jasper Wood Products Lane County |
150 | 7 | 0 | |
|
Mars Enterprises Marion County |
150 | 2 | 0 | |
|
Rainier or Lds Church Columbia County |
150 | 1 | 0 | |
|
Riviera Mobile Park Josephine County |
150 | 3 | 1 | |
|
Rosland Coffee House Deschutes County |
150 | 2 | 0 | |
|
Salem Mobile Estates/shady Acres Marion County |
150 | 6 | 1 | |
|
Wasco County Fairgrounds Wasco County |
150 | 3 | 1 | |
|
Camp Alpine Church of Lds Benton County |
143 | 1 | 0 | |
|
Adelsheim Vineyards Yamhill County |
140 | 2 | 0 | |
|
Oakvilla Mobile Home Park Linn County |
140 | 1 | 0 | |
|
Oprd Wolf Creek Inn Josephine County |
140 | 2 | 0 | |
|
Kingswood Heights Water Co-Op Clackamas County |
138 | 5 | 1 | |
|
Chateau Mobile Home Park Marion County |
136 | 7 | 1 | |
|
LA Casa Mia Deschutes County |
135 | 5 | 0 | |
|
Fischers Place MHP Malheur County |
130 | 10 | 4 | |
|
Prineville Mobile Home Park Crook County |
130 | 1 | 0 | |
|
Sidwalter Warm Springs · County |
130 | 10 | 3 | |
|
Halcyon Villa Mobile Home Park Linn County |
126 | 2 | 0 | |
|
Domaine Serene Yamhill County |
124 | 1 | 0 | |
|
Butler Ford and Acura Jackson County |
120 | 4 | 1 | |
|
Camp Attitude Linn County |
120 | 3 | 1 | |
|
Usace McNary Dam Umatilla County |
120 | 2 | 0 | |
|
Lakeshore RV Park/camp Crook County |
115 | 2 | 0 | |
|
Wisemans Mobile Court Klamath County |
114 | 7 | 1 | |
|
Columbia Acres Water Assoc Columbia County |
110 | 4 | 1 | |
|
Lakeside Mobile Home & RV Park Klamath County |
110 | 6 | 2 | |
|
Zion Mennonite Church Clackamas County |
110 | 3 | 0 | |
|
Trailer Park Village Marion County |
105 | 6 | 0 | |
|
Lapine Lds Church Deschutes County |
102 | 2 | 0 | |
|
Ashland Fuel Stop Jackson County |
100 | 3 | 1 | |
|
Bear Creek Artichokes Tillamook County |
100 | 2 | 0 | |
|
Blackmans 4-Way Grocery Clackamas County |
100 | 2 | 0 | |
|
Camp Arrah Wanna Clackamas County |
100 | 1 | 0 | |
|
Camp Esther Applegate Lds Klamath County |
100 | 2 | 0 | |
|
Circle K #9641 Marion County |
100 | 4 | 2 | |
|
Top Notch Smoke & Market #2 Lane County |
100 | 2 | 0 | |
|
Cng Smokehouse LLC Washington County |
100 | 2 | 0 | |
|
Cold Springs Water CO Washington County |
100 | 2 | 0 | |
|
Comfort Inn & Suites-Hermiston Umatilla County |
100 | 3 | 0 | |
|
Desert Cooperative MHP Jackson County |
100 | 5 | 1 | |
|
Elk Lake Resort Deschutes County |
100 | 3 | 0 | |
|
Green Apple NW Clackamas County |
100 | 2 | 0 | |
|
Jacksonville Lds Church Jackson County |
100 | 5 | 1 | |
|
Lemolo Lake KOA Douglas County |
100 | 2 | 0 | |
|
Macleay Country Inn Marion County |
100 | 2 | 0 | |
|
Maple Elsie Water Service Clatsop County |
100 | 6 | 0 |
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.