THE IMPORTANCE OF PROTECTION AND MANAGEMENT OF KARST WATER AS DRINKING WATER RESOURCES IN IRAN

Abstract

Karst water is one of important potable water especially in arid and semiarid zones. Due to its vulnerability and high sensitivity to pollution, water resources protection is one of important measures to be observed in karst resources management. One case study in the The Maharlu Basin, Iran is discussed. Findings are used to postulate regional guidelines for establishing protection and management measures in important karst pumping fields. Suggested locations for new wells in valleys or depressions should be selected on the basis of specialized hydrogeological investigation. Recommendations for first, second and third degree levels of protection based on European standards are suggested and then defined by model. The first degree protection zone around the pumping field is recommended to be 10 × 10 m2. The second degree protection zone should be established to protect primarily from biological pollution. The third degree zone is defined to protect from chemical parameters.