Volunteers monitored Lake Fenwick in 1994 -1995, 2001, 2003-2004 and again beginning in 2021.
The key takeaways from the 2024 monitoring season are:
• Lake Fenwick had clear water, low algal growth, and low nutrient concentrations, a large contrast from previous years. • Lake Fenwick had an alum treatment in late 2023. In 2024, we see the effect of this treatment with reduced phosphorus levels. • No algal blooms were reported for toxin testing in 2024.
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The average of these three TSI indicators during the growing season can be used to place lakes in one of three broad categories: <40 = oligotrophic (low productivity), 40 to 50 = mesotrophic (moderate productivity) >50 = eutrophic (highly productive).