Hydrologic investigations for water resources, water pollution and civil engineering operations using isotope techniques

Abstract

A number of hydrologic studies for groupdwater resources, water pollution and civil engineering investigations are reported. Measuring method and instrumentation developed lately are outlined. The field studies carried out in alluvials, covered investigations for' comparison of borehole dilution technique and conventional pumping tests; groundwater supply to an industrial plant; installation of a well gallary for drinking, water in a valley; determination of protection zone of a pumping site; pollution of ground water around garbage dumps and nuclear installations; construction of foundations; seepage from dams etc. the investigations carried in fractured and karstic aquifers included field measurements of, seepage from dams ets. The investigations carried in fractured and karstic aquifers included field measurements of, seepage rates of a dam built in basaltic aquifer; determination of inflow in a karstic well. The  possibility of measuring vertical flow of groundwater even in borings in fractured or karstic aquifer has been practically demonstrated.