Unsafe Symptoms in Subterranean Water

  • Sunil Babu Khatry

Abstract

The shallowldeep fresh well water samples provided to the laboratory from various places of Kathmandu were analyzed during March 1997 to April 1998.The study reveals that the ground-water so analyzed seems to be contaminated by organic matters, i.e. seepage of wastewater from sewers, septic tanks and solid waste leachates. The demand of groundwater is increasing abruptly due to insufficient and unreliable municipal water supply system. So, groundwater has been extracted in the valley by the consumers with minimal environmental controls though they do not know whether it is safe for drinking or not. The study shows that mostly the ground-water has the additional constraint that steps should be taken for the removal of ammonia, iron and coliform.