Performance Data
| Key Statistics |
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|
2009 |
2010 |
Variation (%) |
| Water Supply |
|
| Piped Water Production (million cu. m.) |
|
|
|
449 |
315 |
1.0 |
|
| Deep Wells (Nos.) |
|
(a) |
Drilled |
622 |
299 |
(51.9) |
| |
|
(b) |
Successful |
492 |
243 |
(50.6) |
|
| Non-Revenue Water (%) |
|
|
|
|
|
|
| |
|
(a) |
Western Province |
34.38 |
34.82 |
1.3 |
| |
|
(b) |
Other Provinces |
25.93 |
26.65 |
2.8 |
| |
|
(c) |
Island-wide |
31.07 |
31.55 |
1.5 |
|
| Domestic Connections (Nos.) |
|
|
|
|
|
|
| |
|
(a) |
Western Province |
575,852* |
599,846 |
4.2 |
| |
|
(b) |
Other Provinces |
590,784* |
648,330 |
9.7 |
| Total Domestic Connections |
|
|
|
1,166,636 |
1,248,176 |
7.0 |
|
| Public Stand Posts (Nos.) |
|
|
|
|
|
|
| |
|
(a) |
Western Province |
4,411# |
4,375 |
(0.8) |
| |
|
(b) |
Other Provinces |
2,757 |
2,541 |
(7.8) |
| Total Public Stand Posts |
|
|
|
7,168 |
6,916 |
(3.5) |
|
| Non-Domestic Connections (Nos.) |
|
|
|
|
|
|
| |
|
(a) |
Western Province |
47,592 |
50,087 |
5.2 |
| |
|
(b) |
Other Provinces |
44,932 |
48,394 |
7.7 |
| Total Non-Domestic Connections |
|
|
|
92,524 |
98,481 |
6.4 |
|
| Total No. of Service Connections |
|
|
|
1,266,328 |
1,353,573 |
6.9 |
|
| Average Household Monthly Consumption |
|
|
|
|
|
|
| (cu. m. per house connection) |
|
(a) |
Western Province |
17.25 |
17.14 |
(0.6) |
| |
|
(b) |
Other Provinces |
13.53 |
13.18 |
(2.6) |
|
| Average Household Billing per Month (Rs.) |
|
|
|
|
|
|
| |
|
(a) |
Western Province |
530.92 |
566.17 |
6.6 |
| |
|
(b) |
Other Provinces |
294.56 |
310.23 |
5.3 |
|
| Total Recurrent Expenditure (Rs. million) |
|
|
|
9,186 |
10,482 |
14.1 |
|
| Development Expenditure (Rs. million) |
|
|
|
21,136 |
26,389 |
24.9 |
|
| Total Revenue (Rs. million) |
|
|
|
11,116 |
12,462 |
12.1 |
|
| O&M Staff / 1,000 Connections |
|
|
|
5.89 |
5.52 |
(6.3) |
|
| Total Staff / 1,000 Connections |
|
|
|
7.16 |
6.66 |
(7.0) |
|
| Average O&M Cost of Water Production (Rs./ cu. m.) |
|
|
|
20.48 |
22.32 |
9.0 |
|
| Collection Efficiency |
|
|
|
0.94 |
1.00 |
(6.4) |
|
| ^ Go to Top |
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| Sewerage |
|
| Sewerage Connections in Dehiwala - Mt. Lavinia Sewerage System |
2,168 |
2,221 |
2.4 |
|
| Sewerage Connections in Kolonnawa Sewerage System |
1,339 |
1,488 |
11.1 |
|
| Sewerage Connections for Institutions |
|
|
|
7 |
7 |
- |
|
| Sewerage Connections in Housing Schemes in Greater Colombo |
2,290 |
2,290 |
- |
|
Sewerage Connections in Housing Schemes outside Greater Colombo
and maintained by Greater Colombo Sewerage Section |
4,631 |
4,631 |
- |
|
| Total No. of Connections Maintained by Greater Colombo Sewerage Section |
10,435 |
10,637 |
1.9 |
|
* Figures was updated including Board and Government Quarters
# This figure was corrected in January 2009 resulted from a survey carried out in end 2008
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| ^ Go to Top |
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| Abbreviations: cu. m. - cubic meters, O&M - Operation & Maintenance |
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| ::: Updated on 2011.03.21 ::: |
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© 2011 National Water Supply and Drainage Board. All rights reserved. |
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Performance Data