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Avoid spending time in the ocean for three days after a significant rainfall.

Avoid Ocean Water Contact During and After Rainstorms

Author: Environmental Health
Date: 11/29/2018 8:35:51 AM

The County of San Luis Obispo Public Health Department advises the public to avoid ocean water contact during, and at least three days following, significant rainstorms.


Rainstorm runoff is known to bring high levels of disease-causing organisms such as bacteria, viruses and protozoa from the watershed and urban areas into the ocean. Such organisms carried into the ocean can cause skin, respiratory, and intestinal problems. Young children, older adults, and people with compromised immune systems are especially vulnerable to these waterborne pathogens.

Surfers, swimmers and others are advised to avoid contact with ocean water during this period, especially in areas close to creeks, rivers, storm drains and other runoff outlets that empty into the ocean. 

For more information and updates, visit www.surfsafeslo.org.