Lake Tahoe
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Lake Tahoe: A National Treasure
Lake Tahoe is one of the world’s largest, deepest, and clearest mountain lakes—22 miles long, 11 miles wide and in a 501-square-mile watershed. The communities surrounding it depend on the protection of its stunning natural beauty and year-round recreational opportunities. The U.S. Forest Service and state agencies manage nearly 85% of the watershed’s land.
Information on the Lake Tahoe watershed including: EPA's protection efforts, water quality issues, effects of climate change, Lake Tahoe Total Maximum Daily Load (TMDL), EPA-sponsored projects, and partner agencies.
Water Quality Programs
Project Updates
- Lake Tahoe Environmental Improvement Program Project Tracker
(Includes EPA-Funded Projects)
Our Partners
Related Information
EPA Fact Sheet: 25 Years of Investing in a Clear, Healthy Lake Tahoe (pdf) (677.9 KB, August 2021)
News Releases
- EPA Awards Nearly $100,000 to Address Microplastic Pollution in Lake Tahoe
- Historic Agreement to Improve Lake Tahoe Water Quality
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