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Orono Beach 2018 Testing Counts

Note: Counts below 235 MPN/100 mL are considered safe

City of Elk River protocol for beach posting

Date North of beach (MPN/100 mL) Middle of beach (MPN/100 mL) South of beach (MPN/100 mL) Geometric mean of weekly counts Geometric mean of monthly counts
8/30/18 69.5 69.7 38.4 0 22.89
8/28/18 53.8 68.3 72.3 0 20.97
8/23/18 25.6 33.1 28.2 0 19.26
8/21/18 19.7 17.3 10.9 0 23.68
8/16/18 10.9 17.1 17.1 0 22.43
8/14/18 18.5 20.1 31.1 0 22.23
8/9/18 20.1 15.8 18.5 0 24.35
8/7/18 18.9 16.8 24.3 0 25.08
8/2/18 6.3 5.2 12.1 0 31.79
7/31/18 35.5 17.1 35.0 0 0
7/26/18 12.1 69.7 15.8 0 56.99
7/23/18 37.9 25.6 21.3 0 65.85
7/19/18 1119.9 488.4 21.6 0 0
7/17/18 16.0 17.3 11.0 0 0
7/12/18 13.0 15.8 13.2 0 0
7/10/18 12.0 9.7 20.3 0 0
7/5/18 41.4 45.7 123.6 0 83.68
7/2/18 122.3 248.9 307.6 0 85.14
6/29/18 151.5 344.8 36.9 0 78.94
6/28/18 43.5 53.0 1299.7 0 75.74
6/27/18 209.8 108.1 307.6 0 67.31
6/26/18 18.7 65.7 235.9 0 60.64
6/21/18 58.1 61.3 76.7 0 61.56
6/20/18 114.5 80.9 272.3 0 63.09
6/19/18 104.3 95.9 261.3 0 52.84
6/14/18 129.6 82.3 58.3 0 0
6/12/18 48.1 86.0 119.8 0 0
6/7/18 25.6 9.8 48.0 0 0
6/5/18 23.1 33.8 7.2 0 0
5/30/18 88.6 49.6 104.6 0 0
5/29/18 47.4 32.7 39.3 0 0

Counts from previous years


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