Volunteers standing in a shallow stream

WAV volunteers help preserve, protect and restore Wisconsin’s 86,888 miles of streams and rivers by providing valuable scientific data to Wisconsin’s natural resource professionals and community leaders. Data we collect inform decision-making about real-world resource management issues that impact local communities. All WAV volunteers enter stream monitoring data into the Wisconsin Department of Natural Resources’ Surface Water Integrated Monitoring System (SWIMS)┬ádatabase.

Tip: Search Wisconsin’s waters using the DNR’s Wisconsin Water Search tool to learn about the conditions, management goals and habitat of a local waterbody.

WAV Stream Monitoring Data Dashboard

Click the link below to explore and download data collected by WAV volunteers at stream stations across Wisconsin! See where volunteers collected baseline data, nutrient data, and continuous temperature data during the field season.

Stream Monitoring Data Dashboard

Baseline Data

Baseline stream monitoring data is collected monthly by WAV volunteers and includes temperature, transparency, stream flow discharge, dissolved oxygen, and biotic index.

Nutrient Data

To assess in-stream phosphorus levels, WAV volunteers collect water samples that are analyzed for total phosphorus (TP) at the State Lab of Hygiene during the growing season. Phosphorus is the most visible, widespread water pollutant in Wisconsin. High levels of phosphorus can trigger excess algae and plant growth in lakes and streams. When these excess plants die and decompose, oxygen levels drop dramatically and can lead to fish kills.

Continuous Temperature Data

WAV volunteers help monitor stream temperature by installing small automatic temperature loggers into local streams. These loggers record water temperature at hourly intervals for 6 months straight! Temperature loggers provide accurate, high-resolution temperature data that helps us monitor the health of streams across the state.

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