Division Articles

Ocean water
2/11/2026

Avoid Ocean Water Contact During and After Rainstorms

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.
Savory sandwich with Italian meats and cheese on a wood board
2/6/2026

Interactive Mapping Tools

Environmental Health leverages GIS Apps (geographic information system applications) such as interactive maps and data dashboards to provide timely and program-focused data to the public.

Mosquito on carpet
12/1/2025

Mosquito Information

Guidance documents and resourceful links on preventative measures to take to prevent the spread of vector borne disease.
backflow prevention assembly at Meadow Park in San Luis Obispo
12/1/2025

Recent Changes to Cross-Connection Control

A cross-connection is an interconnection between a potable water supply and a non-potable source via any actual or potential connection or structural arrangement between a public water system (PWS) and any source or distribution system containing liquid, gas, or other substances not from an approved water supply.
Savory sandwich with Italian meats and cheese on a wood board
5/5/2025

New Scoring Method for Food Facility Inspections

Effective May 12th, 2025, Environmental Health Services moves to a new scoring method that uses a negative scoring scale. A perfect score is zero and violations lead to a negative number score.