scholarly journals The Benefits of Improved Water Supply: Lessoned Learnedfrom Sri Lanka

2016 ◽  
Vol 07 (04) ◽  
pp. 58-66
Author(s):  
MallikaAppuhamilage KumudiniSriyalatha
Keyword(s):  
2006 ◽  
Vol 22 (3_suppl) ◽  
pp. 545-559 ◽  
Author(s):  
Donald Ballantyne

The water supply and transportation lifeline systems near the coastline of Sri Lanka were the most heavily affected by the December 2004 Great Sumatra earthquake and tsunami. The fishing and tourist industries were devastated; many fishing harbors were heavily damaged. Dozens of bridges in the highway and railroad system were damaged, primarily by erosion and scour. Portions of coastal road were washed away. However, most of the above-grade infrastructure components such as electrical distribution systems, water supply systems, communications systems, and bridges were inland and thus were not affected. Quickly distributing potable water to the affected areas was a challenge. International emergency responders provided portable, then permanent, water treatment facilities. An estimated 60,000 wells were inundated, 12,000 of which will require cleaning. Wells were being restored by pumping out the saltwater. Restoration was limited by the availability of equipment, labor, and supplies of critical resources. Sand for concrete to construct schools, hospitals, and housing was in very limited supply.


2022 ◽  
Vol 4 ◽  
pp. 100116
Author(s):  
B.K.A Bellanthudawa ◽  
N.M.S.K. Nawalage ◽  
S. Suvendran ◽  
A.T. Novak ◽  
H.M.A.K. Handapangoda ◽  
...  

2016 ◽  
Vol 11 (3) ◽  
pp. 678-689 ◽  
Author(s):  
K. C. Ellawala ◽  
D. P. M. P. Priyankara

The aim of every water supply scheme (WSS) is to meet the demand qualitatively and quantitatively. Although quality can be maintained with appropriate operation and maintenance strategies, supplying increasing demand in terms of quantity is a problem, because large-scale investments are sought for water supply utilities. However, satisfaction of consumer cannot be neglected under these circumstances. Hence the objective of the current study is to examine the influence of the level of service supplied, water quality variations and the geographical location of consumers on their perceptions on service delivery, satisfaction and risk perception. The study was limited to Matara WSS, Southern Sri Lanka. Results of the logistic regression analysis show that the area of residence is the most influential parameter on the taste satisfaction and risk perception. Satisfaction on safety, odour and clarity is more than 95% of the respondents. However, satisfaction on the service delivery is poor and perceived pressure has a major impact on the satisfaction on service delivery and consumption, hence indicating that perceived pressure has a close relationship with the discharge. Further, the study confirms that socio-economic parameters are influential on the risk perception and satisfaction of the consumers. It can be concluded that proper management of available water quantity will increase the level of satisfaction in terms of service delivery.


Author(s):  
Herath Gunatilake ◽  
Jui-Chen Yang ◽  
Subhrendu Pattanayak ◽  
Caroline van den Berg ◽  
A. K. Enamul Haque ◽  
...  

2012 ◽  
Vol 212-213 ◽  
pp. 155-162
Author(s):  
Nalaka D. Subasinghe ◽  
Priyantha Jinadasa

Demarcation of fresh- and saline-water interface is important in water supply engineering in coastal regions. A resistivity imager system was employed to investigate the saline water intrusion to freshwater table at selected coastal locations in Sri Lanka. This is the first such attempt in Sri Lanka using the above technique. Systematic geo-resistivity investigations were carried out at randomly selected sites at Mundel and Rekawa coastal areas. Measured and calculated values generally show good agreement, especially in Mundel area, where the current penetration is good. The results indicate a possibility of using resistivity imager system to demarcate the saline and fresh water interfaces and intermixing zones, especially in the wet zone.


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