Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake and Water and information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted.  For more information, please see www.doi.gov/shutdown

Mike Chotkowski


Mike started his federal career as a fish biologist with the Bureau of Reclamation, and he joined the

USGS in 2015. He advises regional USGS science leadership in developing and maintaining an effective,

efficient, and integrated scientific portfolio in the San Francisco Bay-Delta. Mike also works with USGS

Science Centers and partners on collaborative efforts to address scientific uncertainties that are critical to

water management in the Bay-Delta region and in California.