Abstract:
This research study was conducted in Uva province of Sri Lanka which is located in the
Badullu oya Basin. This study was aimed to identify the behavior of the groundwater
quality changes, present groundwater level fluctuations and groundwater consumption
of the region. The groundwater distribution study was carried out in Sprin Vally,
Badulla district, Sri Lanka for understanding the level of groundwater utilization. The
area is covered by sedimentary soil deposits underlain by hard ciystalline rock
formations and groundwater occur both weathered formations as well as from top soil
deposits. This study was conducted in two different seasons on post monsoon and dry
season. Dug well monitoring was conducted for a 11-month period starting from April
2007, selecting 20 ordinary dug wells with respect to Electrical conductivity (EC), pH
and ground water level. The results of the study help to prepare groundwater
distribution maps for the wet and dry seasons using the GIS package Arcview and help
to identify groundwater availability of the area. The Regime of unconfined quaternary
aquifer groundwater level intimately is related with the atmospheric precipitation. The
study revealed that groundwater level changes directly related with atmospheric
precipitation and topographical changes of the study area. During the study period EC
values have not significantly changed with precipitation.
