International Workshop on Rain Water Harvesting

September 27-29 2006, Kandy, Sri Lanka

Theme: “Making Rain Water Every bodies business”

An International workshop on RWH Jointly organized by the Lanka Rain Water Harvesting Forum (LRWHF), the Rain Water Harvesting Secretariat, Ministry of Urban Development & Water Supply and National Water Supply & Drainage Board (NWS&DB) was held successfully from 27th to 29th September 2006 in Kandy.

The workshop focused best practices and lessons learned on the sustainable use of rain water harvesting systems and its future developments.


Five ministers whose ministries are responsible for RWH represented five countries, in the SAARC region. Hon. Dinesh Gunawardana (Minister of Urban Development & Water Supply, Sri Lanka), Hon. Prof. Salf – Ud – DinSoz (Minister for Water Resources, India), Hon. Gopal Man Shrestha (Minister for Physical Planning & Works, Nepal) Hon. Lyonpo Sangay Ngedup (Minister for Agriculture, Bhutan), and Hon. Abdul Razzak Idris, (Deputy Minister for Environment, Energy & Power, Maldives).

19 participants representing 08 countries were present for the workshop. 07 international organizations working towards RWH were represented at the workshop. These include World Health Organization (WHO), International Rain Water catchments Association (IRCSA), Association of Rain water Storage and Infiltration Japan, Taiwan Rain Water catchments Association (TRCA) and Natural Resource Management Action for Food, Production (AFPRO), Rain Centre Chennai India and  Centre for Science and Education New Delhi, India. 104 local participants from various government organisations, Non- government organisation, private organisation and as well as interested individuals were also present at the workshop.


16 papers were presented during the 3 technical sessions under the following themes.

  • 1st Session – “Awareness Raising and Education on Rain Water Harvesting”
  • 2nd Session – “Forms of Rainwater Harvesting, Systems and Technology”
  • 3rd Session – “Experiences and Lessons Learned”
  • 4th session – The 4th Session, under the theme of “Group discussion and Outcomes”, in which the participants grouped to discuss the following topics and formulated recommendations. The topics were, Gaps in Policy & Strategies & Recommendations for Promotion of Rain Water Harvesting, Appropriate systems & Technology in supporting Guidelines & Manuals etc. Download final issues from group recommendation [PDF – 67KB]


A ministerial declaration on sharing experiences, knowledge and know-how of RWH was signed by the ministers representing five countries who participated the workshop. Download the Declaration [PDF – 281KB]

Rain Water Walk and Exhibition

A “Rain Water Walk” was held on day two (28th September) in the city of Kandy to highlight the importance of RWH. An exhibition on RWH was opened after the parade at St. Sylvester’s College, Kandy, which was held in parallel to the workshop. This gathered a momentum among the participants and also achieved the attention of the general public and the students.

Field Visit

The workshop was concluded on day three with a field visit to Dalada Maligawa, Rain water harvesting system at Bowalwatta Junior School, Gadaladeniya temple and Peradeniya Botanical Gardens.

Presentations made by LRWHF

Three papers were presented by members and partners of LRWHF on experience and findings of projects conducted.

  • Improving Water Security in the Southern Province Affected By Tsunami through Domestic Rainwater Harvesting Systems (Tanuja Ariyananda and Nuwan Asanka Ratnayaka) – View here [PDF – 199KB]
  • Impact of Rainfall Runoff Harvesting in Drought Prone Areas -A Case Study in Kotewehara of Sri Lanka (C. Shanthi de Silva and Tanuja Ariyananda) – View here [PDF – 218KB]
  • Importance of Rainwater Harvesting in Sri Lankan Agriculture (Dr C.S. Weeraratna, and Dr P. A. Weerasinghe) – View here [PDF – 151KB]

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