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Post-Fire Stream Assessment Data, Napa and Sonoma County, California, 2017-2018

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2023-03-14T00:00:00Z
In October 2017, the Atlas, Nuns, and Tubbs wildfires in Napa and Sonoma Counties, CA burned approximately 133 thousand acres. Multiple watersheds were affected by the fires, with up to 95% of some watersheds being burned. Post-fire assessments were conducted at 10 sites within Napa and Sonoma Counties to assess the effects of fire on sediment, water quality, and ecology. This data release contains data from the analysis of benthic macroinvertebrate samples, bed sediment samples, water quality samples, and algal samples.

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