DBPapers
DOI: 10.5593/sgem2017/12/S02.038

EVALUATION OF EXPLOITABLE RESOURCES OF WATER INTAKES LOCATED BETWEEN RIVERS, BASED ON NUMERICAL MODELING, ON THE EXAMPLE OF TARNÓW REGION IN POLAND

A. Haladus, R. Zdechlik, A. Szczepanski, P. Bukowski, G. Wojtal
Sunday 10 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7105-99-5 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 12, 297-304 pp, DOI: 10.5593/sgem2017/12/S02.038

ABSTRACT

Tarnow region is supplied with water from intensively exploited groundwater and surface water intakes located in the small area between Dunajec and Biała rivers. Three groundwater intakes are a part of the Tarnow Municipal Water Service, i.e. Świerczków, Kępa Bogumiłowicka and newly constructed Zbylitowska Góra intake, as well as the intake of surface water in Zbylitowska Góra. The chemical company Zakłady Azotowe in Tarnów has groundwater intake located in Tarnów-Mościce, and one of surface water located nearby. Groundwater intakes draw water of the Quaternary aquifer (sandy and gravel deposits, mixed with pebbles, with hydraulic conductivity from a dozen to more than 100 m/d), recharged directly with rainfall and infiltrating river water, and locally with water from irrigation ditches. Exploitation of water takes place in the conditions involving several major sources of contamination.
The magnitude evaluation of exploitable resources of subject intakes involved calibrated numerical model of the aquifer’s hydrogeological structure, developed on the basis of the actual size of groundwater withdrawal and depth to groundwater table. The model was modified and updated on the basis of the existing single-layer numerical model, that maps the hydrogeological conditions occurring in the Quaternary aquifer. As a part of predictive tests, the research team used the model to map average low water levels in surface flows, and then simulated the operation of individual intakes in order to obtain the greatest possible efficiency. Possible withdrawal can be estimated at around 81.5% of the resources.

Keywords: exploitable resources, water intakes, hydrogeology, numerical modeling, Dunajec river, Biala river