Secchi Disk Program

The volunteer “Take A Dip” Secchi Disk program was initiated by CLWA in 2010, and has proven to be an important component of the overall water quality monitoring efforts on Canandaigua Lake. Our group of dedicated volunteers provide critical data that notifies us of changes in lake health. In 2015, secchi disk volunteers were some of the first to notice a drop in clarity, which then lead to the first major blue green algae event on Canandaigua Lake.

Secchi Disk volunteers use their own boats to go out on the lake and take weekly clarity and temperature readings.  Findings are reported electronically, which makes real-time response to a possible critical condition possible. The additional data gathered by volunteers helps us supply more detail to the ongoing “picture” developing of Canandaigua Lake.

Map of Canandaigua Lake Secchi Disk Monitoring Locations

Click on the location to see the volunteer’s most recent reading.

 2018 Data for Water Clarity Monitoring

The below chart illustrates current weekly average secchi disk readings collected by the 2018 CLWA volunteers. Data is updated weekly. Thanks go out to our long standing volunteers: Dee Crofton, Gary Helming, Kevin Hefner, Scott Hill, Bruce Kennedy, Marty Lasher, Wade Sarkis, Lynn Thurston, Vickie Tucker, Bill Yust, Steve Zumbo, Kathy Bromley & Greg Talomie, Amy Bowen, Rob Gray, Nadia Harvieux, Bill Mehls, David Schwaner, Brian & Dolores Perkins, Sue Ford, Maggie Benham, Brad Kellog, and Scott Kreher.!

Secchi Disk Volunteer Resources  

Need a refresher on the sampling protocoll? Find more infomation here.

New in 2019. CLWA is asking our secchi disk volunteers to record some additional information on top of their secchi disk reading on the overall conditions of the lake. You can access the electronic report here or by clicking on the yellow box below.