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Environmental Services

Dean Messer, Chief

3500 Industrial Blvd.
West Sacramento, CA 95691
(916) 376-9699

Mailing Address:
P.O. Box 942836
Sacramento, CA 94236-0001




News / Announcements:


Restoration Actions in the Yolo Bypass
DWR’s Division of Environmental Services, along with the Fish Passage Improvement Program, are working with the Bureau of Reclamation to implement several restoration actions within the Yolo Bypass.

newDWR and Reclamation are recirculating for public review the Biological Resources portion (Section 3.5) of the draft Initial Study and Environmental Assessment (IS/EA) and proposed Mitigated Negative Declaration (MND) for the proposed Fremont Weir Adult Fish Passage Modification Project. The public comment period on the Biological Resources Section of this document starts May 15, 2017 and ends June 13, 2017


Sentinel Commisioning Ceremony

A ceremony was held in Old Sacramento on December 19th to commission the Department’s newest state-of-the-art research vessel. Director Mark Cowin dedicated the R/V Sentinel in memory of DWR’s Chief Deputy Director Laura King Moon who passed away in 2015. The vessel will play a critical role in monitoring and research in the San Francisco Estuary and Delta to better understand estuarine processes, and to document compliance with State Water Resources Control Board Water Right Decision D-1641.   

Click here for more informationThe following link has more photos and information on the ceremony and on the R/V Sentinel: more...