E. coli Threat Over: Big Chico Creek Declared Safe for Swimming
BREAKING: Big Chico Creek is now safe for swimming, as Butte County Public Health (BCPH) has lifted the no-swim advisory that has been in effect since July 18, 2023. The announcement, made on Tuesday, follows recent water and sediment tests that returned negative for the dangerous E. coli O157 strain, which had caused serious illnesses in the area this summer.
The testing results were confirmed by Lisa Almaguer, public information officer for BCPH, indicating that the creek is ready for swimmers just in time for Chico’s annual polar bear plunge at Sycamore Pool. However, Almaguer emphasized a word of caution regarding potential risks.
“This creek is a natural waterway. With natural waterways, there is always a risk of exposure to E. coli and other bacteria that can make people sick,” she warned in an email. Families, especially those with young children, should take precautions to minimize exposure while enjoying the water.
Although no E. coli O157 was detected in recent samples collected in November 2023, BCPH noted that other common strains of E. coli were identified. While these strains are less dangerous and rarely lead to severe symptoms, the health department is urging continued vigilance.
Authorities have yet to determine the source of the initial contamination. Almaguer explained that pinpointing a definitive source is challenging due to various wildlife and environmental factors. BCPH tested feces from geese and deer in the area, but results came back negative for the harmful E. coli strain.
“Other potential sources could be debris being washed down from upstream,” Almaguer stated. “It is quite possible that we will not be able to identify the source of contamination. This means that it will be important to continue testing the creek to determine whether O157 is still present.”
Going forward, BCPH will collaborate with the city of Chico and the California State Water Board to enhance long-term water safety measures and monitoring strategies for the creek.
As summer activities ramp up, this news brings relief to local residents and visitors eager to enjoy outdoor swimming. However, the health department reminds everyone to remain cautious and informed about potential risks associated with natural waterways.
Stay tuned for more updates as BCPH continues to monitor the situation closely.
