Logo courtesy of Butte County Public Health 

BUTTE COUNTY, CA (MPG) - Butte County Public Health (BCPH) is lifting the no-swim advisory for Big Chico Creek after the California Department of Public Health reported that the most recent water and sediment laboratory tests did not detect the dangerous strain of E. coli O157 found earlier this summer.

While the recent test results did not detect the same strain of E. coli O157 that infected residents, they did identify other E. coli that are commonly found in natural waterways. These strains can still cause illness but are generally considered less dangerous and rarely lead to severe symptoms.

However, the fact that E. coli O157 has been found in Big Chico Creek before means there is an increased likelihood that it could be detected again. As with any natural waterway, people should use caution when swimming or recreating in the creek. This is especially important for families with young children to reduce the risk of exposure to E. coli and other bacteria.

“While these latest results are encouraging, the public’s health remains our top priority,” said Dr. Jarett Beaudoin, Public Health Officer. “Lifting the advisory is an important step forward, but everyone needs to continue using caution when swimming in the creek.”

Since June, Butte County Public Health has been investigating an E. coli O157 outbreak associated with swimming in Big Chico Creek, which led to several cases of severe illness and hospitalization among Butte County residents. As part of the investigation, Butte County Public Health has worked closely with state and federal partners to test water and sediment samples at multiple points along the creek.

While Butte County Public Health has not yet identified the source of the contamination, they will continue to work closely with the City of Chico and the State Water Board to better understand long-term water safety, which may include modifying routine monitoring/testing of the creek.