Russian River Monitoring Results in 2013

Regional Water Quality Control Board Summer 2013 Russian River Monitoring Results

DATE

May 30, 2013 June 05, 2013 June 12, 2013 June 19, 2013 June 26, 2013

July 02, 2013 July 10, 2013 July 17, 2013 July 24, 2013

August 01, 2013 August 07, 2013 August 14, 2013

May 30, 2013 June 05, 2013 June 12, 2013 June 19, 2013 June 26, 2013

July 02, 2013 July 10, 2013 July 17, 2013 July 24, 2013

August 01, 2013 August 07, 2013 August 14, 2013

Cloverdale River Park

86 10 10

52 41 20 41 <10 41 63 10

28 52 31

411

64

308 135 16 47 48 108

Alexander Valley Campground

31 20 30

86

20 <10 41 <10 <10 10 <10

16 34 12

Camp Rose Beach

10 10 52

Healdsburg Memorial Beach

Steelhead Beach

Forestville River Access Beach

Johnsons Beach

Monte Rio Beach

E.

Coli

74 <10 41 40 20 <10 NO SAMPLES COLLECTED

411063 203141 102010

52 30 10 <10 <10 20

122 2014 10 10 85 <10 74 20 20 <10 52 10 <10 <10 10 <10

1296 441 2098

10 41 63

10 <10 10 <10 <10 10 <10 <10 <10

10 31 10 10 63

10 10 NOT SAMPLED

Enterococcus

7 21 15 35 18 71 8 6 11 20 13 5

NO SAMPLES COLLECTED

20 10

46 122 18 10 20 10

687 >2420 62 317 55 >2420 13 139 17 2

4 13 36 2 12 12

291

63

236 158

1300 326 >2420 >2420 45 29 105 36 187 140 47 13 107 73 19 12 <1 9 5 4 11 318619<10 23 72 91 12 11 30

19 70 21 NOT SAMPLED

Regional Water Board samples on Wednesdays from May 30 through September 4 Sonoma County Water Agency samples on Tuesdays and resamples on Thursday in response to exceedances

Red Type identifies exceedances of the following EPA and California State Department of Public Health guidelines:

E. Coli: 235 MPN per 100 mL; Enterococcus: 70 MPN per 100 mL E. Coli = Escherichia coli MPN Entero. = Enterococcus MPN

Total coliform bacteria are commonly found in the environment (e.g., soil and vegetation) and are found in human and animal fecal matter (Minnesota Department of Health 2005). Therefore, data on total coliform abundance in surface water samples do not indicate whether the source of total coliform detections are from natural, animal, or human sources. Better indicators of human and animal fecal inputs are fecal coliform, E. coli, and Enterococcus.