A general advisory has been issued for county beaches following the recent rain.
The Department of Environmental Health warns bacteria levels can rise significantly in ocean and bay waters, especially near storm drains, creeks, rivers and lagoon outlets that discharge urban runoff. The runoff may contain large amounts of bacteria from a variety of sources, such as animal waste, soil and decomposing vegetation.
While many coastal storm drains are permanently posted with white metal warning signs, additional temporary warning signs are not posted for general advisories. Activities such as swimming, surfing and diving should be avoided in all coastal waters for 72 hours following rain. This includes all coastal beaches and all of Mission Bay and San Diego Bay.
The increased bacteria levels can continue after a rainstorm depending upon the intensity of the storm, volume of runoff and ocean conditions.
Watch a CTN.org video on beach water testing.
