Inland Water Sampling

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Lake Butte des Morts Boat Landing

Date Sampled E. coli Results
2014-07-21 4.1
2014-07-15 67
2014-07-07 72.3
2014-06-30 25.3
2014-06-23 32.7
2014-06-17 1732.9
2014-06-10 15.8
2014-06-02 2419.6
2014-05-27 73.3
2013-08-14 3.1
2013-08-06 1
2013-07-29 2
2013-07-22 2
2013-07-15 3.1
2013-07-08 1299.7
2013-07-01 14.5
2013-06-24 8.5
2013-06-17 193.5
2013-06-12 5.2
2013-06-06 122.3
Image of Lake Butte des Morts Boat Landing
WARNING E. coli results greater than or equal to 235 poses an increased risk of swimmer-related illness.
The US EPA has established an advisory level of 235 cfu/100 ml (cfu = colony forming units) for E. coli. Samples are taken on a weekly basis at all sample locations, except Menominee Park, which is sampled twice per week. Results are a snapshot of the E. coli values at the time of sampling. Conditions change daily. As a result, the bacteria count taken on a given day may not necessarily reflect the condition on subsequent days or even later that same day.