The Regional Support Center (RSC) Western Province was established in year 1992. With the expansion of water supply facilities in Western Province, the Western Province was divided in to three RSCS’ namely Western Central, Western North and Western South in year 2008.

RSC (W-S) Covers Dehiwala , Moratuwa & Rathmalana DS divisions in Colombo district, and all DS divisions in Kaluthara district & part of Bentota DS division in Galle district.

RSC (WS) is headed by DGM & assistant by AGM. The Operational activities within RSC (W-S) is divided in to three region (Dehiwala, Panadura/Horana, Kalutara) & each region is headed by regional Manager. Total staff within the RSC is about 784 at the end of August 2017.

At present, RSC (W-S) provides water supply to about 1,237,540 consumers through 248,898 service connections about the end of August 2017. RSC (W-S) generated Rs.2.482 billion revenue in year 2016, which is about 12% of total revenue of NWSBD.

Eng. C.C.H.S Fernando functions as the DGM & Eng. P. Ramawickrama functions as the AGM.

 Organization Sructure

Please click here to view / download organization sructure of Regional Support Centre (Western - South)group 2


RSC (W-S) Office Premises


 Location map RSC (W-S)

Location map
 Transmission  Map



Please click here to view / download transmission line map of Regional Support Centre (Western - South)

Ongoing Projects

 Water Supply Projects
Project Name TEC  (Rs. Million) Target to be complete Progress at October 2017
Construction of 2000m3 capacity reservoir at Beruwala  133          December 2017 99%  
PC tank yard pipe laying beruwala OIC office 2.802          December  2017 87%
Laying uPVC,PE,DI pipe along kaudana Atthitiya road/Abesekara toUnion place 6.76           December 2017 51%
Laying uPVC,PE,DI pipe along kaudana Atthitiya road/Abesekara to Atthitiya road
7.96            December 2017 8.5%
Laying uPVC,PE,DI pipe along Hill street 71.54           November 2017 99%
Laying of uPVC & DI Pipes along Kahathuduwa intake change to Pokunuvita RDA Funded             May 2018    3%
Laying of Pipes alonge Mathugama Wallipanna  RDN Funded            May 2018 16.9%
Proposed Major Projects Details
Project Name  Total Cost Estimate (Rs. Million)
 Replacing old Asbestos cement pipes in Manager (Kalutara) areas to provide a satisfactory water supply to consumers 2,745
Water Supply to high elevated areas in Dahampahanagama and surrounding under Manager (Kalutara) 873
Construction of salinity barrier to prevent salinity intrusion to Thebuwana Intake (Kethena) 2210

Ingiriya/ Handapangoda  Water Supply Scheme(This project handled by P&D section , head office)


High elevated areas at Moragahahena / Talaga and sorrounding areas  water supply distribution


Balance distribution  in Kalutara region not covered under Aluthgama, Matugama,Agalawatta WS