Lake Poygan Boat Landing

Date Sampled E. coli Results
2009-08-2732.8
2009-08-18231
2009-08-13101.7
2009-08-0513.2
2009-07-2916.1
2009-07-15517.2
2009-07-0147.1
2009-06-24218.7
2009-06-172419.6
2009-06-1070.3
2009-06-0333.2
2009-05-27155.3
2008-08-2815.8
2008-08-2123
2008-08-14488.4
2008-08-0816.9
2008-08-0136.8
2008-07-1035.5
2008-06-26261.3
2008-06-11461.1
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. 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.

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