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

Pritchard Island Beach

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Sample DateFecal ColiformTemperature (C)Temperature (F)
9/22/20094119.066.0
9/15/20092119.066.0
9/8/200938019.066.0
8/31/20095721.070.0
8/25/20094520.068.0
8/18/2009121.070.0
8/11/200933020.068.0
8/4/20092623.073.0
7/28/200916025.077.0
7/21/20092423.073.0
7/14/20091318.065.0
7/7/2009416.061.0
6/29/200911019.066.0
6/23/20091519.066.0
6/15/20092720.068.0
6/9/200962019.066.0
6/2/20092120.068.0
5/26/200923015.059.0
5/18/20091015.059.0
5/12/200929.048.0
Fecal Coliform Geometric Mean
61
29
50
29
36
32
53
22
29
18
19
41
57
66
60
36
-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