Inland Water Sampling

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Grundman Park Boat Landing

Date Sampled E. coli Results
2014-08-18 18.3
2014-08-04 48
2014-07-28 33.2
2014-07-21 2
2014-07-15 365.4
2014-07-07 11
2014-06-30 35.5
2014-06-23 19.9
2014-06-17 47.3
2014-06-10 28.8
2014-06-02 191.8
2014-05-27 52.1
2013-08-14 28.8
2013-08-06 4.1
2013-07-29 44.6
2013-07-22 55.6
2013-07-15 5.2
2013-07-08 410.6
2013-07-01 44.8
2013-06-24 238.2
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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.