salinas valley pumping costs vary widely depending upon their location, with great differences in pumping costs often occurring over relatively short distances. Yield of ground water aquifers, proximity to the river, and ground elevation are the basic factors determining the pumping lift at any particular location in the Valley. A sample of 1,562 well tests made by the Pacific Gas and Electric Company showed that pump lifts in the Salinas Valley range from less than 25 ft near the Salinas River to over 350 ft on the bench lands near the eastern foothills.

This research, conducted under Experiment Station Project RRF 2210, is supported in part by grant funds from Regional Research Project W-81, and the Water Resources Center, University of California.