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Zapotillo Dam Project Gonzalo E. Espinoza
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Motivation *Dr. David Maidment Countries Federal Government Goal!
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*Justin Baker & Travis Glenn
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Regional Hydrography Verde River
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Guadalajara Monterrey Mexico City Aguascalientes Leon
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Characteristics of the Project 130m height (Lake Travis 85m) Flooded Area 4,800 Ha (Lake Travis 7,800 Ha) Volume 990 Mm3 (Lake Travis 1,400 Mm3) Roller-Compacted Concrete Water supply for 30 years M.A. of Guadalajara Leon Los Altos
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Precipitation Distribution
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Population Benefited & Water deficit City/RegionStatePopulation LeonGto.1’100,000 *ZMGJal.950,000 Los AltosJal.350,000 **AguascalientesAgs.750,000 Depletion of Water Table Leon ~ 3m/year Aguascalientes ~ 1m/year Extraction below 400m *Guadalajara Metropolitan Area **Not included in the project
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National Water Law CONAGUA Water is property of the nation. (Natural resource) Water is a public good. Administration via Hydrologic Regions. Sustainable use and part of the National Security.
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1995 Treaty Water allocation of Verde river 1997 modification Federal Approved Negotiated between Jalisco and Guanajuato No difference Wet/dry years Jalisco12.2 m3/s385 Mm3/yr ZMG9.6303 Los Altos2.269 Livestock0.413 Guanajuato3.8 m3/s120 Mm3/yr Leon3.8120
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Water Allocation Treaty 16m3/s Allocated 8.6m3/s Leon has the same volume. Los Altos 80% of the treaty.
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Water Distribution Leon – Los Altos
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Chapala Lake
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Flooded Communities 185 365 480
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Flooded Communities
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Aguascalientes Irrigation District #1 57 Mm3/year State Deficit 325 Mm3/year Depletion of Water Table Subsidence Seismic activity Reduction in Aquifer Capacity Obligation to treat water Presence of heavy metals in drinking waters sources Alternative Sources? Alternative City
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Possible Conflict Points Scarcity and Development Upstream Pollutant Downstream Historic use Political power Absolute volumes in water allocation Political Boundaries do not match Social Boundaries Political Force/Party Duplicity of work o Plan ahead o Negotiate a treaty with your neighbor before someone else does!
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Discussion What is the comparison between the situation in central Mexico and other regions in the world? What are the possible solutions to achieve a sustainable use of water in the region? What are the pros and cons of an alternative population center in the state of Aguascalientes?
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