Study to Evaluate the Effectiveness of RWH Systems as a Domestic Water Supply Option

Duration	Commenced in January 2011
Funded by	Water Supply & Sanitation Collaborative Council
Project Partners	Community Local Authorities: District Secretary, Divisional Secretary National Water Supply and Drainage Board Community Water Supply and Sanitation Project Other major RWH implementers
Objective	Promote rain water harvesting as an alternative drinking water supply
Purpose	To study the effectiveness of rain water harvesting as a domestic water supply option To identify the prevailing issues and constraints in promoting rain water as an alternative drinking water sources among rural communities
Activities	Collection of Data and Information / Data Sources - Reviewing the previous studies - Household (HH) survey Sample design and size - Sampling Frame: 2 districts from each province where RWH is most practiced - 2 communities in each district - HH with RWH systems and 2 HH using other sources - Focus group discussion (9x 2x2=36)
Outcome/ Outputs	Report on effectiveness of rain water harvesting as a rural water supply Survey of rain water harvesting systems in Sri Lanka Recommendation for future implementation of rain water harvesting projects Sharing information and experience within the sector | View [PDF - 1.15MB]

Sample Distribution by District

Sample Distribution by Village and Implemented Organisation

District	Village	Organisation	No. of Tanks Constructed between 2000-2008	No. of RWH HH to be sampled
1. Vavunia	Cheddikulam	World Vision	25	5
	Kawanthisapura	BLT/LRWHF		5
2. Mannar		IOM	91	10
3. Anuradhapura		Kalaoya River Basin Project	92	8
	Madawachchiya	ADB/ President's Fund (NWS&DB)	782	68
4. Polonnaruwa	Dimbulagala	NWS&DB	288	9
	Medirigiriya	NWS&DB	491	15
5. Ampara	Alayadivermu (Kawedapitti)	Care International	31	5
	Kalmunai (Tamil)	LRWHF	141	22
6. Batticaloa	Monkerney	Asia Onlus	36	5
7. Puttlam		PRDA	248	19
	Nawagaththegama	NWS&DB	201	15
8. Kurunegala	Polpitigama	Plan Sri Lanka	14	5
	Meewellawa	LRWHF	16	5
9. Matale	Namini Gama (Wilgamuva D.S.)	CWSSP	97	8
	Kirimatiya (Ukuwela)	CWSSP	140	12
10. Kandy	Palukopiwatte	CWSSP	200	23
	Wakedeniya	CWSSP	307	36
11. Gampha	Divulapitiya	CWSSP	21	5
12. Kalutara	Weragama (Wadduwa)	Asia Onlus	37	5
		NWS&DB	1,395	26
13. Kegalle	Galigamuwa	NWS&DB	384	20
	Aranayaka	NWS&DB	319	17
14. Ratnapura	Karathila (Eheliyagoda)	H.K.L. Menike	22	5
	Nadrana	H.K.L. Menike	74	5
15. Matara	Pelana North	LRWHF	80	7
	Dampahala - west	LRWHF	72	7
16. Hambantota	Koskoratuwa (Tangalle)	World Vision	32	11
	Weliwewa	NWS&DB/ ADB	200	69
18. Moneragala	Badalkubura	NWS&DB	716	86
	Polwatta	Sarvodaya	10	5
Total			6,562	543

Abbreviations

ADB – Asian Development Bank
CWSSP – Community Water Supply & Sanitation Project
IOM – International Organization for Migration
LRWHF – Lanka Rain Water Harvesting Forum
NWS&DB – National Water Supply & Drainage Board
PRDA – People’s Rural Development Association