Advertisement

The Karstic Flow System in Uja Area — West Bank: An Example of two Separated Flow Systems in the Same Area

  • Joseph Guttman

Abstract

Uja spring is the largest spring in the Eastern Basin of the Judea-Samaria Mountains in the West Bank. In the vicinity of the spring outlet there are three production wells (Uja 2,3,4). The Uja spring is characterized by large discharge fluctuations. It was conjectured that the drying of the spring in dry years is the result of pumping in the nearby Uja wells. This conjecture follows the assumption that the spring and the wells are hydrologically connected and are supplied by the same reservoir.

A detailed investigation of the spring discharge, the hydrological setting of the spring, of the wells and the wells water level measurements, shows that the spring and the wells are hydrologically separated. As a result, the pumping from the wells has no influence on the spring discharge.

There is a local, very karstic aquifer, which feeds the spring; the discharge depends on climatic variations (drought or rainy years). In contrast the Uja wells draw water from a deep, separate, aquifer. A similar hydrological situation exists in the En Samiya area, where the Palestinian Authority utilizes water from the En Samiya spring (Upper aquifer) and from the wells (lower aquifer). The important consequences of this analysis on the management strategy of the water supply of the area are concluded in this paper.

Keywords

Aquifer management hydrology karst flow springs West Bank 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Guttman, J., 1979: Jordan Valley — Hydrogeological Conditions in the Cenomanian Aquifer on the Margins of the Jordan Valley (Tel-Aviv: Tahal Consulting Engineers Ltd.): 01/79/26 [in Hebrew].Google Scholar
  2. Guttman, J., 1980: Gitit, Kana and Samar Area-Calibration of a Digital Model for Reconstruction of Groundwater Movement in the Lower Aquifer of the Judea Group (Tel-Aviv: Tahal Consulting Engineers Ltd.): 01/80/96 [in Hebrew].Google Scholar
  3. Guttman, J.; Zuckerman, H., 1995: Flow Model in the Eastern Basin of the Judea and Samaria Hills (Tel-Aviv: Tahal Consulting Engineers Ltd): 01/95/66) [in Hebrew].Google Scholar
  4. Guttman, J., 2000: Hydrogeology of the Eastern Aquifer in the Judea Hills and Jordan Valley, Final Report. (Tel-Aviv: Mekorot): no. 468.Google Scholar
  5. Kronfeld, J.; Vogel, J.C.; Rosenthal, A., 1990: “Natural Isotopes and Water Stratification in the Judea Group Aquifer (Judean Desert)”, in: Israel Journal on Earth Sciences, 39: 71–76.Google Scholar
  6. Rosenthal, A., 1978: Non-Equilibrium of 234 U/ 238 U Isotopes in the Water of the Judea Group Aquifer on the Eastern Slopes of the Judea and Samaria Hills [in Hebrew]. M.Sc. thesis (Tel Aviv: Tel Aviv University).Google Scholar
  7. Shaliv, G., 1980: Bet Shean and Eastern Samaria Basins-Updating of Hydrogeological Model (Tel-Aviv: Tahal Consulting Engineers Ltd.): 01/80/51 [in Hebrew].Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Joseph Guttman
    • 1
  1. 1.National Water CompanyTel-AvivIsrael

Personalised recommendations