zebra mussels cinder block Lake Monona Theresa Vander Woude October 24, 2016 Zebra mussels found on a cinder block in Lake Monona by a Clean Lakes Alliance volunteer monitor. Photo by Tom Smith. Share it on Theresa Vander Woude Theresa Vander Woude is the Associate Manager of Communication and Digital Media at Clean Lakes Alliance. Leave a Comment or Cancel reply You must be logged in to post a comment.