Below is a selected summary of data collected by CWMN volunteers from Fall 2022 – Fall 2024. The ponds span a gradient from low productivity (oligotrophic) to extremely high productivity (hypereutrophic). The bar graphs represent mean concentrations of each parameter, with error bars showing the standard deviation. Numbers shown above the bars indicate the total number of samples used to calculate the mean values. This page shows a sample of ongoing data collection and will update periodically.
Pond data are collected by community members for our community to use!
Please reach out to us at cfl_water_network@mailplus.wisc.edu if you would like a copy of the data or to discuss our work.
CWMN Pond Data Averages and Time Series


Total Phosporus is the sum of all organic and inorganic forms of the key nutrient phosphorus (P) in the water.


Total Nitrogen is the sum of all organic and inorganic forms of the nutrient nitrogen (N) in the water.


Dissolved organic carbon is the sum of all dissolved organic forms of carbon (C) from leaves, soil, and algae breaking down in water.


Chloride is an ion that is a component of substances like common road salts that can be dissolved in water.


Conductivity is the measure of electrical charge in the water based on its ion concentrations.


Water temperature is the measure of how warm or cool the water is.


Water clarity is the measure of how transparent or clear the water is.


pH is the measure of how acidic or basic the water is along a scale.


Chlorophyll is a green pigment found in plants and algae in the water.