The Sacramento-San Joaquin Delta, in which we operate, is an important and delicate environment. Not only does it provide drinking water for two-thirds of the state, it acts as a habitat for countless fish, birds, and wildlife. We are deeply committed to maintaining and protecting this area. The Port’s Delta Environmental Enhancement Program (D.E.E.P.) aims to enhance air quality, water quality, and wildlife habitats in the Delta and surrounding communities.

Air Quality

Breathe easy. The Port of Stockton is always looking for ways to reduce air pollution and emissions—from requiring vessels to shut off their main engines while docked to replacing our vehicles and dredgers with electric versions. See what else is in the air with our program.

Water Quality

The industrial and maritime activities that happen at ports can produce a lot of pollutants. That’s why we go to such great lengths to make sure they don’t reach our waterways. Learn more about some of our efforts to keep the Delta clean.

CEQA Documents

In cooperation with numerous agencies, the City, and the surrounding community, the Port has implemented a variety of plans and programs to identify and reduce environmental impacts from Port operations and promote community engagement and education since the preparation of the WCDP EIR. These programs include measures to reduce emissions, protect habitat, improve water quality, and engage with the community. All of these efforts ultimately reduce cumulative environmental effects and will continue to do so in the future.

Green Marine

The Port of Stockton receives annual certification from Green Marine in recognition of our leadership and commitment to continuously reducing our environmental footprint.

Owl Cams

Port of Stockton Owl Nest Program

Tree Plotter

The Port of Stockton hosts TREE PLOTTER, an online tree inventory tool to monitor our progress and the environmental impact of existing and new planting trees.


Located in the San Joaquin River Delta, the Port of Stockton plays host to a wide array of plant and animal life, and, while commerce and trade are the primary objectives of the Port, the need to be good stewards of the environment is taken very seriously. To this end, the Port is engaged in several ongoing initiatives aimed at achieving a healthy balance between being good stewards of the environment and keeping the wheels of commerce rolling.

White Papers

New research findings and publications are documented and made available to the public. If you have a topic to be explored in greater detail, reach out to the Environmental Department and share your ideas!