Evaporation via a combination of the sun's warmth and wind increases the salt content in the ponds from about 2.9% ... ground ...

Pete McCloskey, left, and other plaintiffs announce their 2020 lawsuit against the U.S. Environmental Protection Agency and Redwood City Salt Ponds, an affiliate of Cargill Inc. Photo courtesy ...

Pumps transfer the brine resulting from this initial evaporation stage to concentration ponds, where the salt content rises ... ground for shrimp and larval fish, which in turn attracts birds.