System of Regional Support Centre (RSC) was established for smooth management of Operation & Maintenance (O&M) Section in 1992. This was a recommendation made by the Institutional Development Programme funded by USAID. At the inception, only four RSCs were established for Western, Southern, Central and North Central Provinces. All Water Supply Schemes (WSS) except Kalutara WSS were under the Western RSC. With the expansion of water supply facilities in Western Province, it was decided to divide Western RSC in to 3 RSCs in 2008. Accordingly, RSC- Western Central (WC) was established to coordinate activities related to the central part of Western Province.
At present, RSC-WC geographically covers all areas in Colombo District except Dehiwala-Mount Lavinia and Moratuwa Municipal Council Areas. It consists of 03 Municipal Councils (Colombo, Sri Jayawardhanapura & Kaduwela), 05 Urban Councils, 03 Pradeshiya Sabhas falling within 10 Divisional Secretary areas.
RSC-WC has the largest number of connections (about 583,280 as at December 2024) when compared to all other RSCs. It generates the highest income for NWSDB.
Contact Us
Additional General Manager
Deputy General Manager (Act)
Assistant General Manager (O&M / Development)
Eng. R M W Gunawardana
NWS&DB, No 1-2/1, White Park, Malaigakanda, Colombo 10
No 1-2/1, 3 rd Floor, White Park, Malaigakanda, Colombo 10
NWSDB, No.57/33, Muthuwella Road, Colombo 15
NWS&DB, No. 73/7, Elwitigala Road, Colombo 08
NWSDB, No. 130, Lower St: Andrews road, Mattakkuliya, Colombo 15
NWSDB, No. 130, Lower St: Andrews road, Mattakkuliya, Colombo 15
No 1-2/1, 3 rd Floor, White Park, Malaigakanda, Colombo 10
NWSDB, No. 4/374, Perera Mawatha, Kaduwela
NWSDB, Vidyakara Mw, Maharagama
NWSDB, Kulasewana Mw, Pannipitiya
NWSDB, Courts Rd, Homagama.
NWSDB, Vidayala Mw, Avissawella.
NWSDB, Miriswatta, Piliyandala.
NWSDB, Miriswatta, Piliyandala.
NWSDB, Gorakapitiya Rd, Pelanwatta.
| RSC – Western Central Office | NWS&DB, 175A, Nawala Road, Nugegoda |
| Manager (Colombo City North) Office | NWSDB, No.3, White Park, Maligakanda, Colombo 10 |
| Pay & Go Machines | 1. Manager (Colombo City North) 2. Zone Office (Maligawatta) 3. Area Engineer (Mattakkuliya) |
| Area Engineer (Pamankada) | NWS&DB, No. 42, Balapokuna Road, Colombo – 06 |
| Area Engineer (Kotte) | NWS&DB, Sri Nagavihara Road, Pagoda, Nugegoda |
| Area Engineer (Maharagama) | NWS&DB, 138A, Dehiwala Road, Maharagama |
All OIC office in Western Centra – Card payments only
| Sanasa Bank | Boralasgamuwa | Cash & Cheques |
| Sanasa Bank | Divulpitiya | |
| Boralesgamuwa Thrift & Credit Co-Operative Society Ltd | Dehiwala Road, Boralesgamuwa | |
| Divulpitiya Thrift & Credit Co-Operative Society Ltd | Sanasa Mandiraya, Divulpitiya, Boralesgamuwa | |
| Godigamuwa South Thrift & Credit Co-Operative Ltd. | Nilammahara, Maharagama |
AE Battaramulla – No75, Robert Gunawardana Mawatha, Battaramulla.
AE Kolonnawa – Base Hospital Rd, I.D.H.,Gothatuwa New Town
| Gamons Agency Post Office | Nugegoda | Cash & Cheques |
| M.P.C.S. | Kollonnawa | Cash |
| M.P.C.S. | Kaduwela | Cash |
| Sanasa Bank | Gangodawila | Cash & Cheques |
| Sanasa Bank | Nawala Koswatta | Cash & Cheques |
| M.P.C.S. | Baththaramulla | Cash |
| Sanasa Bank | Udahamulla | Cash |
| Pensioners Thrift & Credit Co-operative | Gangodawila | Cash & Cheques |
| Area Engineer office (Pamankada) | Nwsdb, No.42,5/1&5/1-1/1, Edmonton Rd, Colombo 06 |
| Payment collection center | Nwsdb, F97, People’s Park Building, Colombo 11 |
| Manager (Colombo North) office | Nwsdb, No.o3,White Park, Maligakanda |
| Bank of Ceylon | Cash & Cheques, ATM & Internet |
| Peoples Bank | Cash & Cheques, ATM & Internet |
| HSBC Bank | ATM & Internet |
| City Bank | A/C No: 20091019 |
| Deutsche Bank | Cash & Cheques |
| Commercial Bank | Cash & Cheques |
| NDB | Cash & Cheques |
| Union Bank | Telephone & Internet Banking |
| Standard Chartered Bank | Telephone Banking |
| Seylan Bank | Only for Seylan Customers |
| Nation Trust Bank | Cash & Cheques |
| HNB | Cash & Cheques |
| Pan Asia Bank | Cash & Cheques |
| Sampath Bank | Sampathnet |
| NSB | Cash only |
- Cargills Food City
- Abans
- SingerCe