Lake Monitoring on Kettle Moraine Lake
Secchi Disc (Water Clarity) is performed weekly in summer and around weed treatment zones as directed. That data is entered onto the DNR website.
You can see the data here at the WI DNR site: https://apps.dnr.wi.gov/lakes/lakepages/LakeDetail.aspx?wbic=43900&page=waterquality
Kettle Moraine Lake – Deep Hole was sampled 9 different days during the 2022 season.
Parameters sampled included:
- water clarity
- temperature
- dissolved oxygen
- total phosphorus
- chlorophyll
The average summer (July-Aug) secchi disk reading for Kettle Moraine Lake – Deep Hole (Fond du Lac County, WBIC: 43900) was 11.5 feet. The average for the Southeast Georegion was 6.2 feet. Typically, the summer (July-Aug) water was reported as CLEAR and GREEN. Chemistry data was collected on Kettle Moraine Lake – Deep Hole. The average summer Chlorophyll was 2.4 μg/l (compared to a Southeast Georegion summer average of 24 μg/l). The summer Total Phosphorus average was 15.1 μg/l. Lakes that have more than 20 μg/l and impoundments that have more than 30 μg/l of total phosphorus may experience noticeable algae blooms. The overall Trophic State Index (based on chlorophyll) for Kettle Moraine Lake – Deep Hole was 41. The TSI suggests that Kettle Moraine Lake – Deep Hole was mesotrophic. Mesotrophic lakes are characterized by moderately clear water, but have an increasing chance of low dissolved oxygen in deep water during the summer
Thanks to Mark Meske for collecting