1. THE CADIZ PROJECT HYDROGEOLOGY John M. “Jack” Sharp, Jr.* Consulting Groundwater Hydrologist Chair, Groundwater Stewardship Committee * Also: Carlton Professor of Geology The University of Texas Austin, Texas

2. One of the most productive wells that I have ever observed.

3. The Groundwater Stewardship Committee Jack Sharp, Professor of Geology, The University of Texas (Chair) Terry Foreman, CH2M Hill Dennis Williams, Geoscience Bill Blomquist, Indiana University Andrew Stone, American Ground Water Trust Greg Thomas, Natural Heritage Institute Wes Reeder, County of San Bernardino Bob Wilkinson, Bren School of Environmental Science and Management, UC Santa Barbara Steve McCaffrey, University of the Pacific, McGeorge School of Law Rod Banyard, Retired, Australia Water Policy Branch, Dept. Environment and Water Resources Tim Parker, Parker Groundwater Toby Moore, Golden State Water Company

4. Groundwater Stewardship Committee Mission The Groundwater Stewardship Committee (GSC) will provide independent review, evaluation, input and technical support for a groundwater management planning effort to ensure that the Cadiz Water Conservation, Recovery and Storage Project (“the Project”) is designed and implemented according to best groundwater management practices and in a manner protecting the unique habitat of the Mojave Desert.

8. Well yield Fenner Gap water budget Potential for ASR Springs Saline water intrusion Subsidence Items of interest that we examined

9. Aquilogic report, 2013

12. Well yield CH2M-Hill, Geoscience, Cadiz history, standard methods. Fenner Gap water budget “Rule of thumb”, R - INFIL, ET - DRI/CH2M- Hill, modeling, basin comparison Potential for ASR Wells & spreading basin - permeabilities high Items of interest examined

13. Springs Elevation, history, geology, standard methods Saline water intrusion Models, standard methods Subsidence Lack of thick compressible layers in zones of pumping, models, standard methods Dust Hydrobio, comparison with other systems Items of interest examined

14. If pumping doesn’t meet the projections, only Cadiz will be hurt. We should, and the plans are, to monitor: Spring discharges Water levels, groundwater salinity, and land surface elevation as pumping proceeds. However

15. GSC concluded that : Average annual extraction of 50,000 AFY for 50 years is feasible. Monitoring, proposed action criteria, and mitigation elements are reasonable and should provide assurance from harm from the beneficial use of groundwater as proposed in the Project. Monitoring elements proposed should be adopted and incorporated into the groundwater management plan.