Tapcensus

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.

Health effects: Total coliform bacteria indicate that the disinfection barrier has been breached or fecal contamination is entering the system. E. coli specifically indicates fecal contamination and the possible presence of disease-causing pathogens (norovirus, Salmonella, Shigella, Campylobacter). Illness can be severe in elderly, young children, and immunocompromised individuals.

Systems with a Revised Total Coliform Rule (RTCR) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Ralph Taylor Trailer Court
Marion County
45 6 1
Tree Top
Marion County
45 3 1
Tri-County Industrial Park #2
Washington County
45 1 0
Sky Crest Heights Homeowners
Josephine County
44 4 1
Unitarian Universalist Church
Marion County
44 1 0
Benton CO Pks Salmonberry CG
Benton County
43 1 0
Black Mountain Water District
Morrow County
43 3 0
Club Paesano Cedarville Park
Multnomah County
43 3 2
Usace Lookout Pt-Ph/dexter
Lane County
43 3 1
Union School
Lake County
43 5 2
Crown Mobile Home Park
Washington County
42 3 2
Grace Bible Fellowship
Linn County
42 1 0
Rise UP Family Fellowship
Washington County
41 4 1
Sea Perch RV Park
Lane County
41 3 0
Shoun Crossroads
Crook County
41 2 1
Calvary Worship Center
Jackson County
40 1 0
Canby Grove Conf Ctr Well 2
Clackamas County
40 3 0
Chemical Waste Mgt of NW INC
Gilliam County
40 2 1
Coe Lost Creek Lake
Jackson County
40 4 0
Coos CO Pks Laverne
Coos County
40 2 0
Copper Stone INC
Marion County
40 2 1
Cove Partnership
Klamath County
40 3 1
Crater Lake Resort
Klamath County
40 3 0
Croft Vineyards
Marion County
40 1 0
Cswa Oliver Spring
Yamhill County
40 4 0
Dome School
Josephine County
40 1 0
Fall Creek Water District
Lincoln County
40 2 0
Fordyce Farm
Marion County
40 1 0
Hermiston Adventist School
Umatilla County
40 3 1
Knife River Training Center
Linn County
40 1 0
Lone Pine In-Lieu Tfas
County
40 1 0
McKee Bridge Mobile Home Park
Jackson County
40 6 1
Mountain View Motel & RV Park
Wallowa County
40 1 0
Nwrec/osu
Clackamas County
40 1 0
Pierre Ford Hermiston
Umatilla County
40 1 0
Raw Advantage Processing LLC
Marion County
40 1 0
Remote Outpost
Coos County
40 1 0
Rising Sun Farms INC
Jackson County
40 2 0
Santiam Meadows Community WS
Marion County
40 1 0
Stafford Christian Church
Clackamas County
40 3 1
T Farm 1
Clackamas County
40 2 0
Tualatin Estate Vineyard
Washington County
40 3 0
Umpqua River Inn & Suites
Douglas County
40 2 0
Usfs Jubilee Lake CG
Union County
40 3 1
Usfs Lost Creek CG #1
Clackamas County
40 2 0
Woodcastle
Linn County
40 1 0
Jackson Creek Water Association
Benton County
39 6 0
River City RV Resort
Josephine County
39 2 0
Scofield Mobile Home Court
Marion County
39 5 1
Tennis West Racquet Club
Benton County
39 2 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.