Join us for the 26th Annual Tahoe Truckee Snapshot Day!

Snapshot Day is an annual water quality monitoring event held each May. Groups of volunteers fan out across the Truckee River Watershed to take samples from creeks, streams, and lakes—including Lake Tahoe—to capture a snapshot of Tahoe’s water quality at a moment in time.

Volunteers of all ages and skill levels are encouraged to join us as we sample various sites around South Lake Tahoe for things like dissolved oxygen, pH, nutrients and more! Volunteers can sign up to join an existing team, create a team with family and friends, or be a Team Lead at their site. Team Leads will receive training prior to the event on how to most accurately collect the needed data for the day so they can guide their team of citizen scientists to success! To learn more about Snapshot Day and to view the map and previous Snapshot Day Report, click here.

Team Leaders: If you would like to be a Team Leader, please sign up for a Team Leader Training on Friday, May 1, from 9:30 – 11:30 am.  Sign-ups will be available soon.

Please note: team leaders are required to attend an annual in-person training.

• When: May 9, 2026 | Sampling: 9 am – noon | Lunch and Fun: noon – 1 pm
• Locations: Sampling will take place at various sites around South & North Lake Tahoe.
• What to bring: Sturdy shoes, long pants, weather-appropriate layers, sun protection including hat, sunglasses and sunscreen, and a full reusable water bottle.
• We provide: Safety materials, sampling materials, training, snacks, free lunch, and cool giveaways.

Mark your calendars! Sign-ups and additional details will be available soon. For all other questions, please email events@keeptahoeblue.org.

• To watch a video on how to sign up for a Keep Tahoe Blue volunteer account, click here.
• If you are interested in sampling North Lake Tahoe or the Truckee River, please go here to sign up (when available) for a sampling location near you!