Re "Ignoring water rights imperils Delta's farmers" (Forum, March 2): Al Medvitz' article does not answer one important fact. How did Delta farmers irrigate before the U.S. Bureau of Reclamation's Central Valley project was put into operation in 1945?
The Sacramento and American Rivers had floods in the winter and very low flows in the late summer. I remember floods in the Sacramento area and the flood gates on Folsom Boulevard, H street, and 12th and 16th streets being closed because of uncontrolled flows in the rivers.
Before Folsom Dam was constructed, I made stream flow measurements below the H Street bridge in late summer with flows below one foot in depth.
To answer my first question irrigation was probably done at low tide.
-- G. Arthur Cort, Latrobe