The agency said information provided by the company on Sept. 26 and gathered through inspector oversight showed the company, one of the country's largest meat packers, had not corrected deficiencies identified during a recent on-site review.
Calls to the company were not immediately returned.
Alberta Health Service officials are investigating nine illnesses tied to E. coli but have only yet definitely identified four patients in Edmonton who got sick after eating Kirkland brand strip loin steaks purchased at a Costco outlet in Edmonton.
The Canadian Food Inspection Agency said the meat the steaks were made from came from the XL Foods plant, but health officials aren't sure if the E. coli was on the product or if it came from a metal meat tenderizing machine used at the Costco store.The store has said it would no longer use the tenderizing machine. XL Foods said in a statement earlier this week that none of its products have been tied directly to an illness.