Materials of the International Conference
50th Anniversary of the International Geophysical Year
and Electronic Geophysical Year

16-19 September 2007 • Suzdal, Russia

Modern state and perspectives of fresh groundwater use for potable water supply

I. S. Zektser

Water Problems Institute, Russian Academy of Sciences, Moscow, Russia

Abstract

At present the tendency to increase in groundwater use for water supply of population is observed. This can be explained by the well-known fact that groundwater, as a source of water supply, has some advantages in comparison with surface water. Natural groundwater resources are defined as rechargeable groundwater flow, characterizing its main peculiarity as renewable mineral resources. A mean perennial amount of groundwater recharge minus evaporation is equivalent to groundwater flow. Thus during regional investigations natural groundwater resources are often expressed as mean perennial and minimal values of module of groundwater (in liter per second per 1 km2). Main methods of regional assessment of natural groundwater resources (i.e. method of genetic stream hydrograph separation for the a long-term observation period, assessment of changes in low-water river runoff between two gagging stations, hydrodynamic method of computing a specific groundwater flow including modeling, method for determining a water balance in groundwater recharge or discharge areas, computation of infiltration recharge of groundwater by its level regime data), there advantages and limitations are briefly discussed in the paper. The choice of concrete method for natural resources determination depends from purposes, tasks and scales of investigations and from geologic-hydrogeologic and anthropogenic conditions of the territory under studying. Native and foreign experiences in regional assessment and mapping of natural fresh groundwater resources are discussed in the paper.

Citation: I. S. Zektser (2007), Modern state and perspectives of fresh groundwater use for potable water supply, in: Materials of the International Conference '50th Anniversary of the International Geophysical Year and Electronic Geophysical Year', GC RAS, Moscow, doi:10.2205/2007-IGY50conf.

© 2007 Geophysical Center RAS and authors


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