The Secchi Dip-In is an annual event in which volunteers contribute to our understanding of water quality in the world. Individuals in volunteer monitoring programs take a transparency measurement on one day during the weeks surrounding Canada Day and July Fourth. You can monitor lakes, reservoirs, estuaries, rivers, or streams, but you must already have the equipment and training. These transparency values are used to assess the transparency of volunteer-monitored lakes in the United States and Canada. The Dip-In is open to any qualified individual in the world that monitors transparency, temperature, or pH in rivers, streams, estuaries, lakes, or reservoirs. One goal of the Dip-In is to increase the number and interest of volunteers in environmental monitoring.
Become a SciStarter Ambassador!
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Applications for Cohort 4 are open!

Libraries and community organizations need your help to spark excitement for citizen science and keep the momentum going!

The SciStarter Ambassador Program offers FREE training to volunteers ready to make an impact in their communities.

Ready to make a difference? Complete your application by March 14th to join the movement!