One swimming spot remains closed in Mission Bay, while another is still under advisory.
Bacteria levels have been dropping at the closed spot near the bay’s Visitor’s Center, said Mark McPherson, chief of land and water quality at the county’s Department of Environmental Health. But they’ve seen occasional spikes, he said.
The swimming area north of the comfort station at Leisure Lagoon was put under a no-swim advisory Aug. 2.
The Visitor’s Center area has chronic advisories throughout the year, McPherson said, because Cudahy Creek drains runoff from landscaping irrigation into it. But he said it’s not known whether the creek is solely behind the closure. City crews haven’t yet found the source of bacteria that closed all of eastern Mission Bay last week.
Before the area can reopen, the county has to have a five-water-sample average that comes in below state limits of E. Coli bacteria.