The Sabaragamuwa Province is located on the South-Central region of the island and it is made up of the two administrative districts namely, Rathnapura and Kegalle. This province is made up of mountain ranges valleys, streams and rivers. Both these Districts are strictly agricultural with tea, rubber, paddy and coconut plantations making up their major income generating enterprises. However much agrarian oriented these Districts are, the District of Rathnapura has maintained a reputation from historical times, the world over, for the wealth of gems.

The Sabaragamuwa Province is the eighth largest province of Sri Lanka boasting a population of 1,919,487 spread out over a land mass 4900 sq km in extent. Area wise Kegalle District covers 1,663 sq km while Rathnapura District is 3,237 sq km. Rathnapura District located at an elevation of 500ft above sea level, and is the administrative capital of the Sabaragamuwa Province about 100km from Colombo. Kegalle District might even be considered the gateway to the central hills of Sri Lanka and the western region of the Kegalle district is less than 500 ft from the sea level with the eastern region lying 1000ft above the sea level.

The Sabaragamuwa Regional Service Support Center (RSC) of NWSDB was established in 2008. After reorganizing the RSC in line with provincial boundaries, it was decided to have a separate RSC for Sabaragamuwa. As is the requirement a Deputy General Manager (DGM) heads the RSC. He is supported by an Assistant General Manager (AGM) and other managers in carrying out the administrative and operational functions. The most important of the RSC functions is the Operation and Maintenance (O&M) of water supply schemes. Other key functions of RSC are: Planning and Design work related to Local Projects; Planning work related to Large Scale Projects; Implementation of Rehabilitation and Augmentation work of the existing schemes; Water Resources Management at the regional or local level; as well as Billing and Revenue collection. Its major task is to provide safe drinking water using new technology and a growing water distribution network.

Naturally, Sabaragamuwa province is made up of mountain ranges and therefore providing pipe borne drinking water facilities to hilly areas is a huge task. However, as of the development of RSC Sabaragamuwa, more than 100,000 families are now provided with safe drinking pipe borne water with covering most of the major cities with higher population density.

The RSC Sabaragamuwa is providing safe drinking water to the community with 12 major water supply schemes in Ratnapura district and 11 major water supply schemes in Kegalle district. Among these water supply schemes, some water treatment plants are newly built automated plants with latest technologies and operations are done with SCADA systems. However, most of the water treatment plants are manually operated full treatment plants and also there are some partial treated water supply schemes within the region.

The National water supply and drainage board is investing Millions of money to building new water treatment plants with better systems. These all investments are being doing to provide a better service with good quality water with adequate quantity to the each citizen within the country. The target of RSC Sabaragamuwa is also to have full treatment plants all over the province and to achieve a higher coverage by providing treated good quality drinking water to the doorsteps of the people living the Sabaragamuwa province.


Balangoda Water Treatment Plant

Balangoda Intake -Walawe Ganga

Balangoda Intake - Walawe Ganga  

Balangoda Water Treatment Plant



Kahawatta Water Treatment Plant

Sedimentation Tank & Rapid Sand Filters


Kahawatta OIC office

sabaragamuwa map
Please click on map to enlarge it
Statistics of the Area
Total Area 4,902.0 km2
Population (2009)* 1,926,000
Population (2012) 1,919,487
Population Density (2012) 391.6/km2
Estimated mid year Population by the Department of Census and Statistics - Sri Lanka

Click on below links to View or Download the original map published by the Survey Department of the Government of Sri Lanka.

The quality of water being supplied is tested regularly. Click here for a summary of test results taken island-wide.

Schemes which are presently in operation

Region Integrated Scheme Total no. of connections as end of 30 th November 2018 Average Monthly Production
(m3/ month)
Ratnapura District Nivithigala 1,499 23,500
Embilipitiya 13,584 290,000
Kahawatta 2,499 57,000
Pelmadulla 3,310 63,000
Rathnapura 9,961 320,000
Udawalawa 7,445 140,000
Balangoda 7,652 170,000
Godakawela 3,802 76,000
Eheliyagoda 3,389 45,000
Kiriella 313 5,000
Kolonna 1,183 18,000
Rathnapura hospital 4 30,000
Kegalle District Gonagaldeniya 114 1,500
Ruwanwella 3,172 73,500
Kannantota 887 15,000
Warakapola 1,609 42,000
Kegalle 13,699 320,000
Mawanalla 24,366 480,000
Aranayaka 2,784 42,000
Bulathkohupitiya 500 10,000
Yatiyantota 1,168 22,500
Dehiovita 1,735 27,000
Rambukkana 7,039 175,000
Total 111,710 2,446,000


Ongoing Projects

Distribution System of Greater Ratnapura Water Supply

National Water supply and Drainage Board implemented the Greater Ratnapura water supply project with a Spanish government loan. Accordingly, capacity of the existing treatment facilities has been increased by additional 13,000m3/day. However, the distribution system was not included to the project due limitation of funds.

Hence, laying of the distribution system of Greater Ratnapura water supply project has been planned using the Local bank funds. Approximately 200km of pipes will be laid by the project and the estimated total cost is Rs. 2,777 Million. 

Pipe lines will be laid up to Meneripitiya along the Ratnapura-Colombo road and upto Millakade along Ratnapura-Panadura road. In addition pipes will be laid along all the by roads in the area. Total number of beneficiaries from the project is 80,000 and it will cover 25 GNDs.


Water Supply & Sanitation Improvement Project (WaSSIP)

The construction works under Water Supply & Sanitation Improvement Project (WaSSIP) were started to provide safe drinking water to the rural community under World Bank funds.

Under the Rural Water Supply component of the project Epalapitiya, Ganepalla and Garagoda Water supply schemes were completed serving 236, 563 and 36 households respectively and the cost is around Rs. Million 92.5.

And also 41% of the overall physical progress has been achieved in the Urban Water supply component of the WaSSIP Project, Greater Galigamuwa WSS. The project consists of construction of 9000 m3/day capacity water treatment plant, transmission and distribution system with service reservoirs covering 29 Grama Niladhari Divisions serving 45,012 people. The total cost of the project is Rs. Million 2,300.

Greater Galigamuwa WSS


                        Ground Reservoir                                                                    Rapid Sand Filter



                             Pump House                                                                                   Intake


Proposed Projects

Small and Medium Water Supply Projects
Name of WSS District DS Division Proposed population to be served Served GNDS Water source Present status
Hemmatagama kegalle Aranayaka, Mawanella, Rambukkana 151,635 159 Asupiniella NPD formats sent by NWS&DB
Warakapola kegalle Warakapola 90,000 GNDS alongkandy-Colombo road from Nelundeniya to Ambepussa Mahaoya NPD clearance OK
Greater Ruwanwella kegalle Ruwanwella 110,000 13 GNDS Ruwanwella
04 GNDS Bulathkohupitiya
01 GND Dehiowita
Magal oya Pending NPD Approval.Proposal has been submitted by Korea Exim bank
Eheliyagoda Ratnapura Eheliyagoda, Dehiowita 71,748 28 Sithawaka Ganga Forward for PAC approval
university of Sabaragamuwa  Ratnapura Imbulpe 9,543 Karagasthalawa, Muttettuwegama, Sabaragamuwa university Samanala wewa reservoir Cabinet paper draft send to Addl.GM(P&P)
Pannala- Ampagala kegalle Bulathkohupitiya 3,320 Alawathura, Thelkumuduwala, Ampagala, Kiriporuwa, Panapitiya, Punehela, kendawa, Wegalla, Ambamalla, Udapotha, Bulathkohupitiya, Lewala, Urumeewala Ritigaha Oya Forwarded for PAC approval
Postal Address : Regional Support Centre (Sabaragamuwa)
National Water Supply & Drainage Board
New Town
: +94 045 22228271,+94 045 22228272,+94 045 22228274,+94 045 22228275,+94 045 22228276
: +94 045 2228273
Name & Designation Telephone Fax Mobile E-mail
Mr. S.S Devaraja
Deputy General Manager
+94 045 22228271 +94 045 2228273 +94 77 3856722 இம்மின்-அஞ்சல் முகவரி spambots இடமிருந்து பாதுகாக்கப்படுகிறது. இதைப் பார்ப்பதற்குத் தாங்கள் JavaScript-ஐ இயலுமைப்படுத்த வேண்டும்.">dgmsab
Mr. W.N  Premasiri
Assistant General Manager (Rathnapura)
+94 045 22228272 +94 045 2228273 +94 77 2386179 இம்மின்-அஞ்சல் முகவரி spambots இடமிருந்து பாதுகாக்கப்படுகிறது. இதைப் பார்ப்பதற்குத் தாங்கள் JavaScript-ஐ இயலுமைப்படுத்த வேண்டும்.">agmsabaragamuwa
Mr. Piyarathna Samarathunga
Assistant General Manager (Kegalle)
+94 35 2231807 +94 35 2231823 +94 719770091 இம்மின்-அஞ்சல் முகவரி spambots இடமிருந்து பாதுகாக்கப்படுகிறது. இதைப் பார்ப்பதற்குத் தாங்கள் JavaScript-ஐ இயலுமைப்படுத்த வேண்டும்.">agmkegalle

Managers (Operational & Maintenance)

Name & Designation Telephone / Fax Mobile E-mail
Mr. L.A.N Amarasena
Responsive Areas: Ratnapura, Embilipitiya, Nivithigala, Eheliyagoda, Udawalawa, Balangoda, Pelmadulla, Kahawatta, Godakawela, Kiriella
+94 45 2228033 +94 71 4396911 இம்மின்-அஞ்சல் முகவரி spambots இடமிருந்து பாதுகாக்கப்படுகிறது. இதைப் பார்ப்பதற்குத் தாங்கள் JavaScript-ஐ இயலுமைப்படுத்த வேண்டும்.">managerrp
Mr. R.W.M.R.P. Wanigasekera
Responsive Areas: Kegalle, Mawanella, Aranayaka, Ruwanwella, Dehiowita, Warakapola, Yatiyanthota, Rambukkana
+94 35 2231979, +94 35 2231027
Fax: +94 35 2231027
+94 77 2442063 இம்மின்-அஞ்சல் முகவரி spambots இடமிருந்து பாதுகாக்கப்படுகிறது. இதைப் பார்ப்பதற்குத் தாங்கள் JavaScript-ஐ இயலுமைப்படுத்த வேண்டும்.">managerkegalle

Service Standard Indicators

Service Indicators  RSC 2018 September
Regional Average
Water Coverage (%) Pipe System maintained by NWSDB 18.7%
Per Capita Consumption (l/c/d) 115
Water Availability (hours) 22.9
Water Quality - Bacteriological Quality Compliance 93.0 
Water Quality - Bacteriological Testing Compliance 100.0
Water Quality - All Samples Compliance 98.5
Sewerage Coverage (%) -

Operational Indicators

Operational Indicators RSC 2018 September
Regional Average
Non-Revenue Water (%) 28.8%
Non-Revenue Water - m3/conn/day 0.2
Defective Meters /1000 connections 9.0
Total Staff/ 1000 connection 5.0
Operational Staff/ 1000 connection 4.0
Estimated Bills/ 1000 connections (Monthly Average) 21.0

Performance in Customer Service

Customer Service Indicators RSC 2018 september
Regional Average
Response to requests for new service connections (%) 95.0%
Customer Complaints Volume (Complaints/ 1000 connection) 5.0
Customer Complaints Resolution 80.0%

Key Performance Indicators (KPIs)

Financial KPIs RSC 2018 Octomber
Regional Average
Collection Efficiency (%) 99.0%
Accounts Receivable Period (months) 1.7
Operating Ratio 1.3
Production Cost (LKR/ m3 Produced) (Only operational cost) 44.15
Average income (LKR/ m3 Sold) 43.80
Stock Efficiency (LKR/ connection) 3,651


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