2017 Lake Minnie Belle

Lake Monitoring Report

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TSI: Trophic State Index is a measurement of overall lake productivity (Nutrient enrichment). The overall TSI of a lake is the average of the TSI for phosphorous, chlorophyll-a and secchi depth.

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Secchi Number        + Math Conversion = TSI

Total Phosphorous  + Math Conversion = TSI

Chlorophyll-a           + Math Conversion = TSI

                                                          TOTAL = TSI

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TP (Total Phosphorous): The amount of organic and inorganic phosphorous within a lake. Organic phosphorous indicates includes detritus, feces, dead leaves and other organic matter.

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Chlorophyll-a: The pigment that makes plants and algae green. Chlorophyll-a is measured in lakes to determine algal concentration.