Effect of Biological Contamination on the Water Quality in Wah Cantt. Area, Pakisatn.
Third South Asia Geological Congress Lahore, Pakistan.

Four aquifer layers exist in the area. Shallow aquifer layers are being contaminated through dug wells. A number of water samples tested for biological contamination using Double Tube Method reveal the migration of coliform bacteria through soil and disposed off water to the nearby dug wells used for domestic supply. On the basis of MNP (Bacteria Count) the area has been divided into four sectors. These sectors can be related with geological and hydro-geological conditions. An infra-formational fault detected in the area is ‘preventing’ migration of coliform from shallow to deeper aquifer layers. Fresh water hyphomycetes have been detected for the first time in the area. All the layers especially shallow aquifers show severe level of biological contamination that has crossed the WHO and USEPA recommended limits. 

Author(s):
M. H. Malik and Sajid Rashid
Institute of Geology
Punjab University Lahore
Pakistan

M. Saleem Khan
Khanpur Dam, Pakistan.