Beach Report Card section (new window) Heal the Bay's 17th Annual Beach Report Card for 2005-2006
May 23, 2007
Table of Contents
Cover Page
Executive Summary
Introduction
About the Beach
Report Card
2006-2007 Analyses
Beach Pollution
Patterns
San Diego
Orange
Los Angeles
Ventura
Santa Barbara
San Luis Obispo
Monterey
Santa Cruz
San Mateo
San Francisco
Marin
Sonoma
Mendocino
Humboldt
Del Norte
BRC Impacts
Recommendations for the Coming Year
Appendix A:
Grading Methodology
Appendix B:
PDF Files
Appendix C:
Acknowledgements
Sonoma County
Analysis   |   Grades

The County of Sonoma, Environmental Health Division monitored seven locations on a weekly basis from April through October, from as far upcoast as Gualala Regional Park Beach to a downcoast location at Doran Regional Park Beach in Bodega Bay. Samples were collected 25 yards north or south of the mouth of a stormdrain or creek.

For additional water quality information visit the Sonoma County Department of Environmental Health website.

Stinson Beach. Photo: Heal the Bay
Gualala Beach. Photo: Heal the Bay

Summer dry weather water quality conditions at all beaches was very good (six As), with the usual exception of Campbell Cove (Figures 36 and 37). Located at the entrance to Bodega Harbor in Bodega Bay, Campbell Cove again received a poor grade (F) for the AB411 time period. Campbell Cove State Park Beach continues to suffer from extremely poor water quality during late summer. Water quality at this location was excellent during the earlier part of summer (late May through August) but decreased dramatically in September and October. Similar late summer water quality degradation has been seen at this location for the past five years. Most scientists looking at this problem believe that wildlife is the likely source of the high bacteria densities, but the actual source or sources of fecal indicator bacteria in late summer has yet to be clearly identified. More on Campbell Cove can be found in the report entitled "The Bodega Bay-Campbell Cove Tidal Circulation Study, Water Quality Testing, and Source Abatement Measures Project." This report can be found on the Sonoma County Department of Environmental Health web site.

All sites in Sonoma County were only monitored from April through October; therefore, there was an insufficient amount of non-AB411 dry weather and wet weather data for further analysis.

Sewage Spill Summary
There were zero (0) reported sewage spills in Sonoma County that led to beach closures.

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County "Beach Bummers"
Figures 36 & 37
Sonoma County - Analysis
2006-2007 Annual Beach Report Card


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