- This event has passed.
Secchi Dip-In 2019
July 1, 2019 - July 31, 2019
Volunteers have been submitting information during the annual Dip-In snapshot since 1994. Please join them in this international effort to track changes in water quality! The Secchi Dip-In is part of Lakes Appreciation Month, where we celebrate our lakes throughout the month of July each year.