What are the long-term trends of bacteria at my coastal beach?
Understanding trends allows decision makers to determine whether pollution sources are increasing in magnitude and/or frequency and the effectiveness of control measures.
The interactive map below provides sampling results for coastal beach monitoring locations over time. A few county health agencies provide creek and lake information along with ocean beach information. Otherwise, lake and stream information is currently unavailable electronically.
Horizontal lines on the charts represent bacterial water quality objectives specified in the California Ocean Plan.
Beach water quality information for coastal and Great Lakes beaches. This information may be up to a year out of date.