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Abstract
Aquifer Storage Calculations Using GIS and Modflow, Los Angeles County, CA
Track: Water Resources
Author(s): Theodore Johnson, Wanjiru Njuguna
GIS and Modflow were used to determine the additional storage capacity of Central and West Coast basin aquifers in coastal Los Angeles County, California, as part of conjunctive use planning. The Water Replenishment District of Southern California wants to store excess surface water in the underlying aquifers for future extraction during droughts. Modflow layers on aquifer elevations, storage coefficients, water levels, and a land surface DEM were used in conjunction with ArcView Spatial Analyst to create model cells and perform grid and volume calculations. Results show that more than 600,000 acre-feet of additional groundwater can be stored in the aquifers.
Theodore Johnson
Water Replenishment District of Southern California
Hydrogeology/GIS
12621 E. 166th Street
Cerritos , CA 90703
USA
Phone: 562.921.5521
Fax: 562.921.6101
E-mail: tjohnson@wrd.org
Wanjiru Njuguna
Water Replenishment District of Southern California
Hydrogeology/GIS
12621 E. 166th Street
Cerritos 90703
USA
Phone: 562.921.5521
Fax: 562.921.6101
E-mail: wnjuguna@wrd.org