Much of the fresh water used for agriculture, municipal and industrial use in central and southern California passes through the Delta, where it is subjected to tidal forcing and other inputs that impact its quality.
Bay DeltaSan Francisco Bay-Delta Water Quality, Nutrient, and Phytoplankton Mapping, 2018
San Francisco Bay-Delta Water Quality, Nutrient, and Phytoplankton Mapping, 2018 through 2024 Comparison