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CDC confirms E. coli O157 in Big Chico Creek samples; Sycamore Pool remains under no‑swim advisory

5672010 · August 25, 2025
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

City staff told the Park Commission the Centers for Disease Control confirmed E. coli O157 in samples from Big Chico Creek. Preliminary findings point to grazing animals or birds as likely sources; the creek was under a no‑swim advisory and further testing was planned.

City of Chico parks staff told the Park and Natural Resources Commission that laboratory analysis by the Centers for Disease Control has confirmed the presence of E. coli O157 in samples taken from Big Chico Creek, and the creek remains under a no‑swim advisory.

Shane, a parks division staff member leading the update, said samples taken by Butte County Public Health were analyzed by the CDC and “the presence of the 0 1 5 7 E. Coli was confirmed.” Shane said preliminary findings suggest the contamination “likely came from grazing animals or birds,” though staff do not…

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