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About the Delta


About the Delta

About the Delta world-renowned destination for boating, fishing and water sports.

The Sacramento-San Joaquin River Delta region encompasses over 1,200 miles of waterways, located between Sacramento on the north and Stockton to the south. It is the largest estuary on the US Pacific Coast. The larger rivers feeding the Delta are the Sacramento and the San Joaquin River. Other rivers include the American River, Mokelumne River, Cosumnes River and the Calaveras River.

Environmentally sensitive and culturally significant, the Delta is home to the “bread basket” of America.  Delta water is the lifeblood for hundreds of thousands of acres of farmlands that feed not only California, but the nation.

The Delta is comprised of numerous channels or sloughs that have resulted in a system of “islands” and wetlands protected by a comprehensive levee system.

The Delta is a world-renowned destination for boating, fishing and water sports. For most Discovery Bay residents, the town’s proximity to the Delta and all that it offers is an integral part of our way of life here.

General information

Reclamation District 800

Reclamation District 800 is responsible for the operation and maintenance of nearly 19 miles of levees protecting 7,000 acres of agricultural, urban, commercial and industrial land in and around Discovery Bay. Rec 800 is responsible for:

General information
Boating Safety Safe Boating Hints for the Delta  Download free guide developed by the California Department of Boating and Waterways.

Boating Safety

The Sacramento-San Joaquin River Delta is comprised of over 1,200 miles of waterways that attract numerous forms of water recreation including boating, fishing, waterskiing, wakeboarding, jet skiing and more. Unfortunately though, the Delta also “represents one of the state’s highest-accident areas” due to the popularity of the area.

There are numerous online resources and printed materials developed to educate recreational boaters. There are also local boater safety courses you may want to consider.

General information
Bay made impassable due to Egeria Densa

Delta Water Weeds

Due to its location on the Delta, invasive aquatic weeds are prevalent throughout Discovery Bay.  The most common types of invasive species are Egeria Densa, Water Hyacinth and the Curly Leaf Pond Weed. 
These weeds have tendencies to grow rapidly and are known to block bays and waterways, making boating almost but impossible in some instances.
The state of California Department of Boating and Waterways (DBW) has taken an aggressive stand against these weeds and have chemically treated Discovery Bay to manage (not eradicate) the variety of weed specie
General information

History of the Delta

In 1839, John Sutter and 13 others traveled the delta region to search for settlement opportunities for others migrating from Europe. The group navigated the Delta waters, departing from Yerba Buena (San Francisco) and after 12 days they met up with the American River, making land at what would eventually become the capitol city (Sacramento).


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