Forecasting Beach Closings and Conditions in the Great Lakes
Forecasting Beach Closings and Conditions in the Great Lakes
Forecasting Beach Closings and Conditions in the Great Lakes
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Sampl<strong>in</strong>g for E. coli<br />
• County Health Departments<br />
rout<strong>in</strong>ely collect beach water<br />
quality samples.<br />
• Health departments must take<br />
a m<strong>in</strong>imum of three samples.<br />
• The daily geometric mean<br />
must be below 300 E. coli<br />
counts per 100 milliliters of<br />
water to be considered safe<br />
for swimm<strong>in</strong>g.<br />
State of Michigan Department of Environmental Quality
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