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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



Four Pumps Projects


The Four Pumps Program has implemented a variety of projects in the Sacramento and San Joaquin river basins and in the Bay-Delta area, such as:

    • Salmon habitat enhancement projects,
    • Water exchange projects to provide fish passage flows for salmonids,
    • Fish screens and ladders,
    • Guidance barriers,
    • Enhanced law enforcement, and
    • Stocking of salmon, steelhead and striped bass.

    Ratzlaff Reach, Merced River Salmon Habitat Enhancement Project

About 15 projects are now being actively implemented under the agreement.

San Joaquin River Basin

Bay-Delta Area
  • Delta-Bay Enhanced Enforcement Project (DBEEP)