Media Releases

Volunteers invited to take part in May 11 citizen science event on Lake Tahoe’s South Shore

League to Save Lake Tahoe
May 6, 2024

24th annual Snapshot Day will connect the community to its watershed

LAKE TAHOE, Nev./Cal., May 6, 2024 – On the morning of Saturday, May 11, volunteers will fan out across the Truckee River watershed to collect and test water samples from creeks, streams, smaller lakes, and Lake Tahoe itself to take a “snapshot” of water quality at a single moment in time for this important source of drinking water and outdoor recreation.

The League to Save Lake Tahoe is coordinating volunteer teams to sample sites along Lake Tahoe’s South Shore, from Meeks Bay to Zephyr Cove, and up to the headwaters of the Upper Truckee River.

Volunteers of all ages and skill levels are invited to become citizen scientists for the day, get outside, and experience some beautiful and rarely visited sites. When you join, you will sample and test the water for things like dissolved oxygen, pH, nutrients, and more. Volunteers can sign up to join an already existing team, create a team of their own with family and friends, or be a team leader. Team leaders will receive training prior to the event on how to most accurately collect the data needed, so they can guide their teams of citizen scientists to success!

Saturday, May 11
– 9:00 am – noon: Event
– Noon – 1:00 pm: Lunch, raffle, and celebration

Volunteers of all ages are welcome. No prior experience is required. You can sign up as an individual, family, or group.

For those interested in leading a team, we ask that you attend a separate training session to review procedures for accurate data collection. This team leader training takes place on Wednesday, May 8, 5:00 – 7:00 pm at the Lake Tahoe Community College Gym.

Meet at the Lake Tahoe Community College Gym | 1 College Drive, South Lake Tahoe, CA 96150. From there, teams will travel to sample at various sites around Lake Tahoe’s South Shore.

Register to be a general volunteer at
Register to be a volunteer team leader at:

Since 2001, Snapshot Day partners have sampled sites from Meyers to Tahoe’s North Shore, on to Truckee and through Reno, terminating at Pyramid Lake. By collecting water quality data from the same sites each year, the League and event partners can track changes in the health of Lake Tahoe and the Truckee River watershed. Snapshot Day also provides a unique opportunity for the community to connect with the watershed in its own backyard through hands-on, scientific fieldwork.

Learn more about Snapshot Day and see a map of last year’s South Shore results at Learn more about the sampling locations in North Lake Tahoe and the Middle Truckee at




Media Contact: Chris Joseph

The League to Save Lake Tahoe, also known by its iconic slogan “Keep Tahoe Blue,” protects and restores the Tahoe Basin’s unique natural beauty and environmental health—today and for future generations. Guided by science, we develop innovative solutions to complex environmental problems, mobilize thousands of volunteers each year, and act as both watchdog and advocate for Tahoe’s wellbeing. Learn more about our 67-year-old, 501c3 organization at

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