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Ocean Water Quality

Sonoma County has approximately 64 miles of coastal beaches. Ocean water samples are collected at beaches that are visited by 50,000 people per year and are adjacent to storm drains, creek or rivers. Seven beaches in Sonoma County meet this criteria.

Environmental Health & Safety monitors bacterial levels by collecting and testing weekly water samples between April 1 and October 31.

Water Quality Test Results

Gualala Regional Park Beach

Date Collected:May 3, 2021
Total Coliform:<10
Escherichia coli: <10
Enterococcus: <10
Beach Status:Open

Beach is open. Health risk is low for water contact. Bacterial levels are within State standards.

Black Point Regional Park Beach

Date Collected:May 3, 2021
Total Coliform: <10
Escherichia coli: <10
Enterococcus: <10
Beach Status:Open

Beach is open. Health risk is low for water contact. Bacterial levels are within State standards.

Stillwater Regional Park Beach

Date Collected:May 3, 2021
Total Coliform: <10
Escherichia coli: <10
Enterococcus: <10
Beach Status:Open

Beach is open. Health risk is low for water contact. Bacterial levels are within State standards.

Goat Rock State Beach

Date Collected:May 3, 2021
Total Coliform: 10
Escherichia coli: <10
Enterococcus: <10
Beach Status:Open

Beach is open. Health risk is low for water contact. Bacterial levels are within State standards.

Salmon Creek State Beach

Date Collected:May 3, 2021
Total Coliform: 10
Escherichia coli: <10
Enterococcus: <10
Beach Status:Open

Beach is open. Health risk is low for water contact. Bacterial levels are within State standards.

Campbell Cove State Beach

Date Collected:May 3, 2021
Total Coliform:<10
Escherichia coli: <10
Enterococcus:<10
Beach Status:Open

Beach is open. Health risk is low for water contact. Bacterial levels are within State standards..

Doran Regional Park Beach

Date Collected:May 3, 2021
Total Coliform: <10
Escherichia coli: <10
Enterococcus:<10
Beach Status:Open

Beach is open. Health risk is low for water contact. Bacterial levels are within State standards.

Download Test Results

2021 test results - all locations
(PDF: 99.7 kb)

2020 test results - all locations
(PDF: 83.9kb)

2019 test results - all locations
(PDF: 22.3kb)

2018 test results - all locations
(PDF: 88kb)

2017 test results - all locations
(PDF: 36kb)

2016 test results - all locations
(PDF: 36kb)

2015 test results - all locations
(PDF: 331kb)

2014 test results - all locations
(PDF: 320kb)

2013 test results - all locations
(PDF: 416kb)

2012 test results - all locations
(PDF: 96kb)

State Standards

Total Coliform: 10,000 per 100 ml 
Escherichia coli:400 per 100 ml 
Enterococcus:104 per 100 ml 

30-Day Geometric Mean/Average Value

Total Coliform: 1,000 per 100 ml 
Escherichia coli:126 per 100 ml 
Enterococcus:35 per 100 ml 

Where Water Samples are Collected

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Contact Information

Environmental Health & Safety
Public Health Division
County of Sonoma
Business Hours
Monday – Friday
8:00 AM – 4:00 PM
Contact us by Phone
Address
Office Location
625 5th Street
Santa Rosa, CA 95404
38.441823, -122.7137698
Google Maps™ Directions

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Marine Biotoxin Monitoring Reports

Marine Biotoxin Monitoring Reports

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The California Dept. of Public Health monitors the water along the California coast to provide information on the safety of eating shellfish.