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A Deadly E. Coli Outbreak in Walkerton, Ont., Changed Everything 25 Years Ago

  • On May 17, 2000, Walkerton, Ontario experienced Canada’s worst E. Coli O157 outbreak, sickening about 2,300 people and killing seven.
  • The outbreak resulted from manure-contaminated drinking water after heavy rains washed cattle manure into a well, combined with human negligence and resource shortages.
  • Two brothers, Stan and Frank Koebel, managed the system, with Stan delaying disclosure of positive E. Coli test results until days after May 17; a boil-water advisory came too late on May 21.
  • Theresa McClenaghan said, “The inquiry didn’t leave any stone unturned” and issued recommendations forming the foundation of Ontario’s Safe Drinking Water and Clean Water Acts.
  • Although water safety improved, a 2025 auditor general’s report highlights ongoing issues with private well oversight, bacterial contamination in 35% of samples, and calls for timely reforms remain urgent.
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26 Articles

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Winnipeg Free PressWinnipeg Free Press
+16 Reposted by 16 other sources
Center

A deadly E. coli outbreak in Walkerton, Ont., changed everything 25 years ago

Breaking News, Sports, Manitoba, Canada

·Winnipeg, Canada
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Cambridge TimesCambridge Times
+5 Reposted by 5 other sources
Lean Left

Food recall issued for dessert sold in Canada due to E. coli

Poppies brand Mini Éclairs have been recalled due to generic E. coli. Other food recalls in Canada this week include recalls for spinach and kale, muffins, pesto pasta sauce and pumpkin seeds.

·Cambridge, Canada
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Cambridge Times broke the news in Cambridge, Canada on Friday, May 16, 2025.
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