Water Supply Source Evaluation in Unmanaged Aquifer Recharge Zones: The Mezquital Valley (Mexico) Case Study
Por:
Hernandez-Espriu, Antonio, Arango-Galvan, Claudia, Reyes-Pimentel, Alfonso, Martinez-Santos, Pedro, Pita de la Paz, Carlos, Macias-Medrano, Sergio, Arias-Paz, Alberto, Agustin Brena-Naranjo, Jose
Publicada:
1 ene 2017
Resumen:
The Mezquital Valley (MV) hosts the largest unmanaged aquifer recharge
scheme in the world. The metropolitan area of Mexico City discharges
similar to 60 m(3)/s of raw wastewater into the valley, a substantial
share of which infiltrates into the regional aquifer. In this work, we
aim to develop a comprehensive approach, adapted from oil and gas
reservoir modeling frameworks, to assess water supply sources located
downgradient from unmanaged aquifer recharge zones. The methodology is
demonstrated through its application to the Mezquital Valley region.
Geological, geoelectrical, petrophysical and hydraulic information is
combined into a 3D subsurface model and used to evaluate downgradient
supply sources. Although hydrogeochemical variables are yet to be
assessed, outcomes suggest that the newly-found groundwater sources may
provide a long-term solution for water supply. Piezometric analyses
based on 25-year records suggest that the MV is close to steady-state
conditions. Thus, unmanaged recharge seems to have been regulating the
groundwater balance for the last decades. The transition from unmanaged
to managed recharge is expected to provide benefits to the MV
inhabitants. It will also be likely to generate new uncertainties in
relation to aquifer dynamics and downgradient systems.
Filiaciones:
Hernandez-Espriu, Antonio:
Univ Nacl Autonoma Mexico, Fac Engn, Div Earth Sci, Hydrogeol Grp, Mexico City 04510, DF, Mexico
Arango-Galvan, Claudia:
Univ Nacl Autonoma Mexico, Inst Geophys, Dept Geomagnetism & Explorat, Mexico City 04510, DF, Mexico
Reyes-Pimentel, Alfonso:
Comis Nacl Hidrocarburos, Mexico City 03700, DF, Mexico
Martinez-Santos, Pedro:
Univ Complutense Madrid, Fac Geol Sci, Dept Geodynam, E-28040 Madrid, Spain
Pita de la Paz, Carlos:
SA CV, GEOTEM Ingn, Mexico City 14640, DF, Mexico
Macias-Medrano, Sergio:
Univ Nacl Autonoma Mexico, Fac Engn, Div Earth Sci, Hydrogeol Grp, Mexico City 04510, DF, Mexico
Arias-Paz, Alberto:
Univ Nacl Autonoma Mexico, Fac Engn, Div Earth Sci, Hydrogeol Grp, Mexico City 04510, DF, Mexico
Agustin Brena-Naranjo, Jose:
Univ Nacl Autonoma Mexico, Inst Engn, Mexico City 04510, DF, Mexico
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