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 April 2017.

At present, RSC (W-S) provides water supply to about 862,539 consumers through 234,629 service connections about the end of November 2016. 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 March 2017
Construction of 2000m3 capacity reservoir at Beruwala  133            March 2017 99%  
PC tank yard pipe laying beruwala OIC office 2.802            March  2017 60%
250DI pipe laying Maggona Pump house to Maggona tower 9.5            March 2017 95%
Laying 400 DI pipe & fittings from Darga town to Aluthgama-Mathugama road 5.8             April 2017 75%
Laying uPVC,PE,DI pipe along kaudana Atthitiya road/Abesekara toUnion place 6.76              May 2017 35%
Laying uPVC,PE,DI pipe along kaudana Atthitiya road/Abesekara to Atthitiya road
7.96              May 2017 -
Laying uPVC,PE,DI pipe along Hill street 71.54              July 2017 20%
Proposed Major Projects Details
Project Name  Total Cost Estimate (Rs. Million) Funds Covered areas(DS Division)
Water supply Dahampahanagama & surrounding areas 873

Fund is not finalized

500mm dia Transmission main from Beruwala to Dargatown 484 Fund is not finalized Distribution to Dargatown areas

Kalu Ganga Salanity barrier


Fund is not finalized

Survice improvement of Kaluthara, Beruwala, Dodangoda, Mathugama,Madurawala , Millaniya

Aluthgama, Matugama & Agalawatta Intergrated WS project


EXIM Bank - India

Kaluthara, Dodangoda, Beruwala, Mathugama, Agalawatta, Bentota

Ingiriya, Handapangoda WS project

10440 Loan is to be given by EXIM Bank India Ingiriya, Hnadapangoda, Bulathsinhala,Madurawela

Kaluganga phase II


Loan - JICA

Bandaragama, Horana, Kaluthara, Milleniya, Panadura, Kesbewa, Padukka, Moratuwa, Homagama
Payagala Aluthgama high elevated area Water Supply


Fund is not finalized

Balance areas of Madurawala .Bulathsinhala,Walallawita and Palinda Nuwara
Balance distribution  in Dodangoda,Agalawatta area not covered under Aluthgama, Matugama,Agalawatta WS 4600 

Fund is not finalized

year 2040 coverage of DS- kalutara, Beruwaka,Dodangoda,Matugama,Agalawatta,Millaniya,Madurawala,Wallalawita and Palinda nuwara