For questions about the King County  Swimming Beach Monitoring Program, please contact Dean Wilson, Program Manager

For questions about the Swimming Beach Web site, please contact Daniel Smith

Echo Lake

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Sample DateFecal ColiformTemperature (C)Temperature (F)
9/22/20094315.059.0
9/15/2009219.066.0
9/8/200911019.066.0
8/31/20097921.070.0
8/24/2009320.068.0
8/18/20094421.070.0
8/11/20099221.070.0
8/4/200933024.075.0
7/28/20094926.079.0
7/21/20091822.072.0
7/14/2009420.067.0
7/7/20091210.050.0
6/29/20092919.066.0
6/23/20094621.070.0
6/15/2009521.070.0
6/9/20093821.070.0
6/2/2009621.070.0
5/26/2009418.064.0
5/18/200914018.064.0
5/12/200912  
Fecal Coliform Geometric Mean
19
19
40
50
46
65
40
27
17
16
13
20
17
12
14
17
-99
-99
-99
-99

Table Legend

Cell Color Fecal Coliform Value Concern Level
Individual value < 200 CFU/100 ml Low Concern
Individual value > 200 & < 1000 CFU/100 ml Moderate Concern
Individual value > 1000 CFU/100 ml
or geometric mean > 200 CFU/100 ml		 High Concern


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Updated: 9/22/2009