Speaker
Mr
Mahinda Premathilake Karunadhipathige
(National Water Supply and Drainage Board, Sri Lanka)
Primary author
Mr
Mahinda Premathilake Karunadhipathige
(National Water Supply and Drainage Board, Sri Lanka)
Co-authors
Mrs
N.C.W. Gunasekara
(National Water Supply and Drainage Board, Sri Lanka)
Prof.
H.A. Dharmagunawardena
(Department of Geology,University of Peradeniya, Sri Lanka)