Beach Report Card section (new window) Heal the Bay's 15th Annual Beach Report Card for 2004-2005
May 25, 2005
Table of Contents
Cover Page
Executive Summary
Introduction
About the Beach
Report Card
2004-2005 Analyses
Beach Pollution
Patterns
Del Norte
Humboldt
Mendocino
Sonoma
Marin
San Francisco
San Mateo
Santa Cruz
Monterey
San Luis Obispo
Santa Barbara
Ventura
Los Angeles
Orange
San Diego
State Legislation
Accomplishments &
Recommendations
Appendix A:
Thresholds-Grading
Appendix B:
PDF Files
Appendix C:
Acknowledgements
Marin County
Analysis   |   Grades

Marin County's water quality monitoring program gathered data from 25 bayside and oceanside monitoring locations. Ocean locations included: Dillon Beach, Bolinas Beach (Wharf Road), Stinson Beach, Muir Beach, Rodeo Beach, and Baker Beach. These locations were monitored on a weekly basis from April through October. During the winter season there was limited monitoring or no monitoring at all. For additional water quality information visit the Marin County Department of Environmental Health website.

Summer dry weather water quality at most beaches in Marin County was excellent. All ocean and bayside monitoring locations received an A (84%) or B (16%) (Figures 9 and 10). Popular beach locations, like Rodeo, Stinson, and Muir, all received As. Three locations that saw substantial water quality improvement this year compared to last year were: Baker Beach Horseshoe Cove NE (C to B), Chicken Ranch Beach at the channel (C to A), and Muir Beach north (F to A).

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 Marin County that led to beach closures.

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County "Beach Bummers"
There were no Marin County beaches that received D or F dry weather grades for the 2004-2005 grading period.
Figures 9 & 10
Marin County - Analysis
2004-2005 Annual Beach Report Card


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