2004 UC Proceedings Abstract
Sustainable Yield Estimation for the Hemet/San Jacinto Valley Groundwater Basin, California Track: Water Resources Author(s): Fakhri Manghi The Hemet/San Jacinto Valley, which comprises Canyon, Hemet, and Upper Pressure, is experiencing a steadily declining in groundwater levels during a 40-year span from the early 1940's to the 1970's. The groundwater levels in the Hemet and Upper Pressure Subbasins have dropped more than 42.0 meters and 71.0 meters for the last fifty years, respectively. The groundwater resources are being depleted as a result of increasing municipal and irrigation production. The Hemet/San Jacinto valley is overdrafted and an effective management approach is necessary to integrate water resources in the region and stabilize the groundwater levels. The main objective of this paper is to estimate groundwater recharge for the Hemet/San Jacinto Valley from natural and artificial recharge by using a simple water budget method that includes groundwater production and storage changes. The change in the Hemet/San Jacinto Valley groundwater storage is estimated by using Geostatistical Analyst of ArcGIS 8.2. Fakhri Manghi Eastern Municipal Water District 2270 Trumble Rd. Perris , CA 92572 US Phone: 909 928-3777 Fax: 909 928-3777 E-mail: manghif@emwd.org |
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