Beach Advisories or Beach Postings occur when at least one bacterial standard from the Ocean Water Contact Sport Standards issued by the California Department of Health Services, has been exceeded. Warning signs alert the public of a possible risk of illness associated with water contact. The placement of signs may be short term or more permanent where monitoring indicates repeated contamination (e.g. from a storm drain). Warnings may be posted where sources of contamination are identifiable and can be explained as not of human origin (e.g., resident marine mammals or seabirds) or of an unknown source. Click image to enlarge.
