More than 1,000 gallons of sewage may have spilled into the ocean about 11 a.m. today through a storm drain as a result of a leaking pressure main under a roadway near Avila Beach Drive at Ana Bay Road, the San Luis Obispo County Health Agency announced this afternoon.
As a precaution, activities have been prohibited in the water near Avila Beach and Port San Luis, according to a news release.
Laurie Salo, county supervising environmental health specialist, said sampling will confirm that the substance is sewage and not potable water. The substance leaked onto the roadway and into a storm drain, which funneled it down to the ocean near the Cal Poly pier.
A vacuum service truck is being used at that site to remove as much of the substance as possible, Salo said.
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County Environmental Health Services officials are posting warning signs at access points along the beach areas. Samples of the ocean water will be analyzed to determine if bacteria levels exceed state standards. The warning signs will remain until test results can confirm that there is not a health risk.
The leak has been contained, and the source of the leak is being determined so it can be repaired, according to the news release.