Seawater Intrusion in Salinas Valley, California

by James S. Jenks, (M.ASCE), Leedshill-Herkenhoff Inc, San, Francisco, CA, USA,
Gerald E. Snow, Leedshill-Herkenhoff Inc, San, Francisco, CA, USA,
Philip L. Wagner, Leedshill-Herkenhoff Inc, San, Francisco, CA, USA,

Document Type: Proceeding Paper

Part of: Water Forum '86: World Water Issues in Evolution


The rate of intrusion has been estimated to be about 19,000 acre-feet per year. If no action is taken to halt the intrusion, it is projected that in the year 2000 there will be as much as 26,000 acres underlain by the contaminated 180-foot aquifer. The cumulative cost of losses may amount to 17. 4 million per year under a low future growth scenario and 21. 9 million per year for a high growth scenario. The recommended plan is to provide an alternative water supply to the coastal area and reduce pumping in that area by a like amount. The water for the project would be provided by modifying the operation of upstream reservoirs.

Subject Headings: Salt water intrusion | Salinity | Water resources | Water supply | Pollution | Sea water | Pumps | Rivers and streams | California | United States

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