Explotation of groundwater resources. an alternative to supplement the water supply to Bahia Blanca, Argentina
Keywords:
groundwater resource, BahÃa Blanca city, Modflow.Abstract
The arrival of dry rainfall years resulted in the lowest historical levels of the Paso de Las Piedras dam, which supplies drinking water to Bahía Blanca city, Gran Bahía Blanca and Punta Alta. This situation created a “water crisis” that is mostly due to control and management problems, than to the lack of technical projects or the availability of the water resource. This contribution aims to demonstrate sustainability of exploitation of groundwater resources to supplement the water supply. The study area covers a sector of the Napostá Chico stream watershed in the southwestern slopes of the Sierras Australes range, Buenos Aires province. The unconfined aquifer is located in the “pampean sediments” widely distributed throughout the piedmont plain. Available hydrogeological information allowed to formulate a numerical flow model by means of the Modflow program. Pumping scenarios were simulated and their impact on the hydrodynamics of the aquifer was tested. The results demonstrate the feasibility of extracting groundwater through a well battery located in close proximity of Cabildo locality. A rational exploitation of the aquifer, sustainable in time, constitutes a viable alternative to alleviate the critical water situation.References
ALBOUY, R., J. CARRICA, Y G. BONORINO, 2005.
Identificación y análisis del fenómeno de drenaje diferido en sedimentos pampeanos. Cuenca del
Ao. Napostá Chico, provincia de Buenos Aires.
IV Congreso Argentino de HidrogeologÃa, Actas (I), RÃo Cuarto, 259-268.
ALBOUY, R., J. CARRICA Y D. LAFONT, 2010.
Crisis hÃdrica de la ciudad de BahÃa Blanca: sustentabilidad de la explotación del recurso hÃdrico subterráneo
para abastecimiento humano.
I Congreso Internacional de HidrologÃa de Llanuras. En: Hacia la gestión integral de los recursos hÃdricos en zonas
de llanuras, Tomo II: 449-456. Azul, Buenos Aires, Argentina. Varni, Entraigas, Vives Editores.
BONORINO, G., 1988.
GeohidrologÃa del sistema hidrotermal profundo de la región de BahÃa Blanca.
Tesis doctoral. Biblioteca Central UNS. 289 p. Inédita.
CARRICA, J., 1998.
HidrogeologÃa de la cuenca del Ao. Napostá Grande, provincia de Buenos Aires.
Tesis doctoral. Biblioteca Central UNS. 215 p. Inédita.
CARRICA, J., 2009.
Cálculo de la recarga en zonas áridas y semiáridas. Recarga de acuÃferos. Aspectos generales y particulares
en regiones áridas.
VI Congreso Argentino de HidrogeologÃa, Santa Rosa, 71-80.
FIDALGO, F., F. DE FRANCESCO Y R. PASCUAL, 1975.
GeologÃa superficial de la llanura bonaerense.
VI Congreso Geológico Argentino, Relatorio, BahÃa Blanca, 103-138.
FUNDACIÓN UNIVERSIDAD NACIONAL DEL SUR, FUNS, 2000.
Estudio hidrogeológico de la cuenca del Ao. Napostá Chico. Estapas 1, 2 y 3.
Inéditos.
FUNDACIÓN UNIVERSIDAD NACIONAL DEL SUR, FUNS, 2010.
Ubicación de la baterÃa de pozos de explotación de agua subterránea para abastecimiento humano en las cercanÃas
de la localidad de Cabildo,
Partido de BahÃa Blanca. ETAPA II. 64 pp y anexos (Inédito).
GONZÃLEZ URIARTE, M. 1984.
CaracterÃsticas geomorfológicas de la porción continental que rodea la BahÃa Blanca, provincia de Buenos Aires.
IX Congreso Geológico Argentino, S. C. Bariloche, (3): 556-576.
GONZÃLEZ, N. 2005.
Los ambientes hidrogeológicos de la provincia de Buenos Aires.
En GeologÃa y Recursos Minerales de la provincia de Buenos Aires. XVI Congreso Geológico Argentino,
Relatorio, La Plata, (22): 359-374.
LLAMBÃAS, E. Y C. PROZZI, 1975.
Ventania.
VI Congreso Geológico Argentino. Relatorio GeologÃa de la provincia de Buenos Aires, BahÃa Blanca, 79-103.
MCDONALD, G. Y A. HARBAUGH, 1988.
A modular three-dimensional finite-difference ground-water flow model.
US Geological Survey, Techniques of Water-Resources Investigations, Book 6, chapter A1.
MINISTERIO OBRAS PÚBLICAS PROVINCIA DE BUENOS AIRES (MOP), 1990.
Plan Integral de Abastecimiento de Agua a BahÃa Blanca, Gran BahÃa Blanca y Punta Alta.
Prefactibilidad Técnica y Económica. Convenio MOP-CIC-UNS. Inédito.
Downloads
Published
How to Cite
Issue
Section
License
All papers published in this Journal are protected by copyrights. No part of published material covered herein may be reproduced, transmitted, stored, or used in any form o by any means graphic, electronic, or mechanical, including but not limited to photocopying, recording, scanning, digitizing, taping, Web distribution, information networks, or information storage and retrieval systems, without a previously accepted permission by the Editor.
The author(s) will be allowed to include a paper version in his own or institutional Web site.
The author(s) may reproduce the paper, totally or partially, and diffuse it contain o let it available to the public in impressed or electronic format only as a part of a teaching context or as a state-of-the art reviewing, for its use in a academic context or for researches in their institution, by citing its previous publication in this Journal.
