Revised Total Coliform Rule (RTCR) violations in Oregon
1,105 active public water systems in Oregon had a Revised Total Coliform Rule (RTCR) violation in the past three years, 307 of them in the latest quarter of EPA's data. What Revised Total Coliform Rule (RTCR) is and why it matters.
Systems with a Revised Total Coliform Rule (RTCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Nehalem, City of Tillamook County |
1,700 | 1 | 0 | |
|
Canyonville, City of Douglas County |
1,662 | 6 | 0 | |
|
Hines Water Department Harney County |
1,645 | 3 | 0 | |
|
Wickiup Water District Clatsop County |
1,630 | 5 | 0 | |
|
John Day, City of Grant County |
1,617 | 2 | 0 | |
|
Biggs Service District Sherman County |
1,600 | 2 | 0 | |
|
Nesika Beach-Ophir WD Curry County |
1,500 | 1 | 0 | |
|
Salmon Valley Water Company Clackamas County |
1,500 | 2 | 0 | |
|
Usfs Union Creek Complex Jackson County |
1,451 | 4 | 0 | |
|
Oprd Bullards Beach State PK Coos County |
1,400 | 1 | 0 | |
|
Cascade Locks, City of Hood River County |
1,398 | 4 | 0 | |
|
Lebanon High School Linn County |
1,350 | 1 | 0 | |
|
Port of Morrow Morrow County |
1,350 | 4 | 0 | |
|
Lyons Mehama Water District Linn County |
1,300 | 6 | 0 | |
|
Yamhill, City of Yamhill County |
1,199 | 5 | 1 | |
|
Heppner, City of Morrow County |
1,187 | 1 | 0 | |
|
Joseph, City of Wallowa County |
1,182 | 3 | 0 | |
|
Yachats, City of Lincoln County |
1,006 | 7 | 1 | |
|
Huntington Travel Plaza Malheur County |
999 | 1 | 0 | |
|
Loves Travel Stop-Boardman Morrow County |
999 | 5 | 1 | |
|
Christmas Valley Domestic WS Lake County |
950 | 1 | 0 | |
|
Rainier SD #13 Columbia County |
950 | 3 | 0 | |
|
Otic Weatherby Rest Area Baker County |
900 | 1 | 0 | |
|
Oprd Tumalo State Park Deschutes County |
895 | 1 | 0 | |
|
Oprd Champoeg Overnight ST PK Marion County |
885 | 1 | 0 | |
|
Adair Village Water System Benton County |
875 | 2 | 1 | |
|
Prairie City Grant County |
841 | 4 | 0 | |
|
Wallowa, City of Wallowa County |
840 | 2 | 0 | |
|
Garibaldi Water System Tillamook County |
837 | 4 | 1 | |
|
Georgia-Pacific, Wauna Mill Clatsop County |
760 | 3 | 0 | |
|
Weston, City of Umatilla County |
714 | 2 | 0 | |
|
Oprd Cline Falls State Park Deschutes County |
712 | 1 | 0 | |
|
Powers, City of Coos County |
712 | 1 | 0 | |
|
Hiland WC Penticton/college Park Marion County |
710 | 4 | 0 | |
|
Golden Enterprises Yamhill County |
700 | 1 | 0 | |
|
Pleasant Valley Elementary Multnomah County |
650 | 2 | 0 | |
|
Short Stop #1 Umatilla County |
650 | 3 | 1 | |
|
Marcola Water District Lane County |
600 | 2 | 0 | |
|
Riverbend Mobile Home Park Clackamas County |
600 | 2 | 0 | |
|
Olney-Walluski Water Assn Clatsop County |
575 | 3 | 0 | |
|
South Umpqua Water Association Douglas County |
575 | 3 | 1 | |
|
Thousand Trails INC Deschutes County |
575 | 1 | 0 | |
|
Barton Food Mart Clackamas County |
570 | 1 | 0 | |
|
Enchanted Forest Marion County |
520 | 1 | 0 | |
|
Meriwether Natl Golf Course Washington County |
516 | 3 | 0 | |
|
Blue Sky Market Lane County |
500 | 1 | 0 | |
|
Meadowbrook Grocery Clackamas County |
500 | 3 | 0 | |
|
Ote Deadmans Pass Rest Area Umatilla County |
500 | 1 | 0 | |
|
Usfs Trillium Lake CG Clackamas County |
500 | 2 | 0 | |
|
Wasco, City of Sherman County |
460 | 3 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Revised Total Coliform Rule (RTCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Revised Total Coliform Rule (RTCR) 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.