Predicting Water Quality at Municipal Water Intakes—Part I: Application to the Contra Costa Canal Intake

by Richard A. Denton, Contra Costa Water District, Concord, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


The factors affecting water quality at a municipal surface water intake in the Sacramento-San Joaquin Delta are discussed. A model is developed that successfully predicts the seawater intrusion at the intake. Further development is needed to account for increases in salinity caused by agricultural return flows during periods of high runoff. The model has applications in operations models of the Central Valley, California to determine the Delta outflow required to meet water quality objectives at the Contra Costa Canal intake.

Subject Headings: Water intakes | Municipal water | Water quality | Canals | Hydrologic models | Salt water intrusion | Runoff | Water flow | California | United States

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