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Fresh Water Quality Sampling: Russian River Beaches and Spring Lake Lagoon

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The Sonoma County Department of Health Services, in cooperation with the North Coast Regional Water Quality Control Board and the Sonoma County Water Agency, monitors bacterial levels in the water at beaches on the Russian River, and also monitors Spring Lake Lagoon in cooperation with the Sonoma County Regional Parks Department. Sampling is conducted once a week each summer between Memorial Day and Labor Day.

Test results will be posted on this webpage. Or for current postings, call the Beach Sampling Hotline at (707) 565-6552

Spring Lake Swimming Lagoon Bacteriological Test Results

ADVISORY Bacterial levels have exceeded State guidleines. Swimming not advised.

CLOSED Significant risk to health. Avoid any contact with water until further notice.

NOTE: Sample Points 1 through 7 are within Spring Lake Swimming Lagoon. Sample Point 8 is within Spring Lake proper.

Spring Lake Swimming Lagoon - Sampling 2011
  Sample PT. 1 Sample PT. 2 Sample PT. 3 Sample PT. 4 Sample PT. 5 Sample PT. 6 Sample PT. 7 Sample PT. 8
Date Sampled TC EC TC EC TC EC TC EC TC EC TC EC TC EC TC EC
June 1, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 2 2 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 770.1 5.2
June 8, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 20 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 649 4.1
June 15, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 261 <1.0
June 22, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 >2419.6 4.1
June 28, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 >2419.6 14.8
July 5, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 >2419.6 1
July 12, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 >2419.6 4.1
July 12, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 >2419.6 4.1
July 19, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1046.2 1
July 26, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 195.6 2
August 2, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 3 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 613.1 <1
August 9, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 4.1 <1.0 <1.0 <1.0 <1.0 <1.0 517.2 <1.0
August 16, 2011 <1.0 <1.0 88.2 88.2 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1 <1.0 <1.0 <1.0 1203.3 <1.0
August 23, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 36.4 <1.0 488.4 <1.0
August 30, 2011 <1.0 <1.0 37.9 37.9 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1732.9 <1.0
September 6, 2011 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 >2419.6 3.1

Spring Lake water sampling has been completed for 2011.

Spring Lake Bacteriological Test Results - 2010 (pdf)

Russian River Bacteriological Test Results

ADVISORY Bacterial levels have exceeded State guidleines. Swimming not advised.

CLOSED Significant risk to health. Avoid any contact with water until further notice.

Reported values represent the median of three samples. Results are expressed in "most probable number" (MPN).

TC = Total Coliform MPN

EC = Escherichia coli MPN

ENT = Enterococcus MPN

Russian River Beach Sampling Sites for 2011 Season
  Alexander Valley Camp Rose Beach Healdsburg Veterans Steelhead Beach Forestville Access Beach Johnson's Beach Monte Rio Beach
Date Sampled TC FC ENT TC FC ENT TC FC ENT TC FC ENT TC FC ENT TC FC ENT TC FC ENT
May 24, 2011 7,701 <10 10 4,106 20 <10 3,654 <10 <10 2,382 10 <10 1,989 10 <10 1,918 <10 <10 3,448 10 <10
May 31, 2011 8,164 20 <10 5,475 20 <10 3,448 20 20 2,310 30 10 2,247 10 10 1,724 20 20 1,553 10 10
June 7, 2011 9,208 75 31 5,794 63 31 5,794 86 30 4,106 146 41 3,448 146 20 3,076 75 30 3,448 85 31
June 14, 2011 3,654 10 10 1,725 20 <10 1,723 20 10 1,036 30 10 1,401 <10 <10 620 <10 10 638 <10 <10
June 21, 2011 2,481 20 10 1,793 <10 <10 1,553 30 20 1,126 10 <10 1,236 <10 <10 1,515 20 41 2,613 20 <10
June 28, 2011 1,616 10 30 1,850 10 31 2,382 108 98 1,450 20 10 1,850 31 10 2,359 52 20 2,489 31 20
June 30, 2011             723 <10 10                        
July 5, 2011 1,236 20 <10 1,670 10 <10 959 31 10 1,376 31 10 1,464 20 <10 1,376 20 10 2,613 20 10
July 12, 2011 1,076 <10 10 1,607 10 <10 880 30 10 676 <10 10 960 10 <10 2,187 10 <10 2,143 10 10
July 19, 2011 749 10 <10 2,014 10 <10 1,112 10 10 703 <10 10 771 10 <10 1,376 31 <10 2,755 <10 10
July 26, 2011 1,607 10 10 2,064 10 10 744 31 10 798 <10 10 1,137 <10 <10 1,553 20 10 4,352 <10 10
August 2, 2011 1,187 20 10 1,467 10 <10 613 20 10 855 20 30 959 31 10 712 10 10 1,314 31 <10
August 9, 2011 1,785 <10 <10 1,989 <10 10 1,483 20 <10 908 41 41 1,039 10 10 767 20 10 1,046 <10 <10
August 16, 2011 2,495 <10 31 2,187 30 20 3,076 10 <10 703 10 20 878 10 41 991 <10 <10 1,439 <10 <10
August 23, 2011 1,918 <10 51 1,860 <10 41 1,515 10 10 884 20 51 754 <10 52 861 20 10 2,723 20 146
August 25, 2011                                     1,770 34 <10
August 30, 2011 1,989 <10 10 2,046 <10 <10 1,162 10 <10 379 10 <10 813 <10 <10 1,354 <10 <10 1,376 <10 <10
September 6, 2011 1,497 10 <10 24,196 <10 <10 1,607 20 <10 529 10 <10 813 <10 <10 1,119 10 <10 1,092 10 <10
September 8, 2011       2,909 <10 20                              
September 13, 2011 602 10 <10 933 31 <10 1,178 20 <10 228 <10 <10 339 <10 <10 785 20 <10 862 10 <10
September 20, 2011 884 10 68.9 1,935 10 54.2 1,333 10 38.4 243 10 27.2 * * 25.6 695 10 31.3 404 10 10.8
September 22, 2011 1,106 <10 60                   305 10 24.3            
September 27, 2011 1,036 <10 26.5 1,246 <10 31.5 1,354 30 20.3 275 10 15.8 487 <10 21.1 908 <10 14.8 1,017 52 80.9
September 29, 2011                                         14.6
October 4, 2011 1,259 74 20 1,100 63 20 4,352 435 110 1,246 20 20 1,223 231 20 1,071 63 10 1,467 75 10
October 6, 2011             10,462 880 960                        
October 11, 2011             1,046 97 <10                        

Russian River beaches water sampling has been completed for 2011.

Russian River Bacteriological Test Results - 2010 (pdf)

Related Links

Fresh Water Quality Sampling: More Information

Test Results Updates

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For current postings, call the Beach Sampling Hotline at (707) 565-6552

Contact

Environmental Health and Safety Programs
625 5th Street
Santa Rosa, CA 95404
(707) 565-6565
eh@sonoma-county.org

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