Tapcensus

E. coli (Escherichia coli) violations in Oregon

204 active public water systems in Oregon had a E. coli (Escherichia coli) violation in the past three years, 204 of them in the latest quarter of EPA's data. What E. coli (Escherichia coli) is and why it matters.

Health effects: Most E. coli strains cause diarrheal illness. Some strains (e.g., O157:H7) produce toxins causing severe bloody diarrhea, hemolytic uremic syndrome (HUS — a form of kidney failure), and death — especially in children under 5 and the elderly. Even non-pathogenic strains in drinking water indicate that disease-causing organisms may also be present.

Systems with a E. coli (Escherichia coli) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Cinders Cafe & Bar
Klamath County
150 3 2
Riviera Mobile Park
Josephine County
150 3 1
Santiam Village
Linn County
150 2 2
Sportsmans Park Water Assn
Wasco County
150 6 1
Wasco County Fairgrounds
Wasco County
150 3 1
Usfs Digit Point CG
Klamath County
140 2 1
Fischers Place MHP
Malheur County
130 10 4
Mathers Market
Lane County
130 2 1
Columbia River Dairy
Morrow County
125 2 1
Camp Attitude
Linn County
120 3 1
Usfs Middle Fork RS
Lane County
120 2 1
Fir Grove Mobile Court
Linn County
114 4 2
Wisemans Mobile Court
Klamath County
114 7 1
Kingsley Reservoir Campground
Hood River County
111 2 1
Bonanza Business Center
Klamath County
110 2 1
Hidden Meadows Water Assn INC
Yamhill County
110 5 1
Lakeside Mobile Home & RV Park
Klamath County
110 6 2
Applegate Golf
Josephine County
100 3 1
Ashland Fuel Stop
Jackson County
100 3 1
Get N GO Grocery 7
Lane County
100 1 1
Get N GO Grocery-4
Lane County
100 1 1
Interfor Pacific INC
Clackamas County
100 2 1
Moon Mtn RV Park
Josephine County
100 1 1
Northwest Hazelnut Company
Marion County
100 4 3
Rocky Point Marina
Klamath County
100 1 1
Sagwal Gas Station
Douglas County
100 2 1
Shady Point Sda Church
Jackson County
100 2 1
Ups-Hermiston
Umatilla County
100 2 1
Usfs Camp Creek CG (upper) HP1
Clackamas County
100 1 1
Columbia Basin Onion
Umatilla County
97 5 2
Alpine Crest Improvement Dist
Marion County
91 4 1
26 Market
Washington County
90 2 1
Alston Country Store
Columbia County
90 3 1
Currinsville Mobile Home Park
Clackamas County
90 7 2
Deer Island Waterworks
Columbia County
90 5 4
Deer View Cooperative
Columbia County
90 6 1
Paradise Moorage
Columbia County
90 4 1
Western Heights Water Company
Baker County
90 3 1
New Hope Foursquare Church
Marion County
85 1 1
O'brien Mann Speedy Mart
Josephine County
85 3 1
Bay Aire Mobile Home Park
Tillamook County
82 3 2
Columbia Ridge Landfill/recycl
Gilliam County
80 2 1
Olympic Forest Products
Columbia County
80 2 2
Summerville Store/tavern
Union County
80 2 1
Topwire
Marion County
80 1 1
Willowcreek Elem SD #84
Malheur County
80 3 2
Blm Alsea Falls Camping
Benton County
75 2 1
Blm Beavertail Rec North Well
Sherman County
75 1 1
Diamond Woods GC
Lane County
75 2 1
Hawks Point
Lane County
75 3 1
About this data

A system is counted once if any of its violations in the past three years involved E. coli (Escherichia coli), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not E. coli (Escherichia coli) 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.