It’s tiny, it’s silver and it’s at the center of a decades-long controversy over California’s water system. It’s the delta ...

For a small fish only found in the San Francisco Estuary, the delta smelt has caused a lot of controversy over the years.

In 2019 Gov. Gavin Newsom announced that he was abandoning the California WaterFix project, which would have created two 35-mile long, 40-foot wide tunnels to carry water south without passing through ...

the species today has the most limited distribution of any cetacean and is restricted to the northwestern corner of the gulf. It is primarily found around the Rocas Consag archipelago east of San ...

Headquartered in Irvine, California, Group Delta specializes in large scale water, electrical utility, and transportation infrastructure throughout Southern California. Group Delta’s 100 ...

What is the history of the Delta smelt? In 1993, the smelt was listed as threatened under the Federal Endangered Species Act and the California Endangered Species Act, according to the California ...