January 23, 2012 (San Diego)--The San Diego Department of Environmental Health has issued a General Advisory for the coastal waters of San Diego County due to recent rainfall.  Swimmers, surfers, and other ocean users are warned that the levels of bacteria can rise significantly in ocean and bay waters, especially near storm drains, creeks, rivers, and lagoon outlets that discharge urban runoff.   Urban runoff may contain large amounts of bacteria from a variety of sources such as animal waste, soil, and decomposing vegetation.