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. Secchi disk volunteers are some of the first to notice a drop in clarity, which can notify us of increased algal activity on the lake.

Volunteers use their own boats to go out on the lake and take weekly clarity and temperature readings. This summer, in addition to their secchi readings, volunteers are participating in weekly “Lake User Perception Surveys” to compliment data collection performed by the DEC on Canandaigua Lake. Volunteers are documenting changes in the perception of the lake over time, making note of the aquatic plants, algae, and overall aesthetics of the lake.

2019 Data for Water Clarity Monitoring

The below chart illustrates weekly average secchi disk readings and surface water temperatures as collected by our CLWA volunteers.

Individual readings can be viewed here.

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, 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.

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