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Orono Beach 2019 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
6/20/19 275.5 40.4 50.4 54.5
6/18/19 17.1 23.1 54.5 54.5
6/13/19 5.2 11.9 12.1 32.29 32.29
6/11/19 21.1 31.8 88.0 39.89 39.89
6/6/19 23.1 18.7 16.1 40.08
6/4/19 13.4 13.4 28.2 48.25
5/30/19 45.0 39.5 36.9 68.09
5/28/19 101.2 107.6 129.6 0
5/23/19 45.0 39.5 36.9 0

Counts from previous years


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