International Commission on Irrigation & Drainage Commission Internationale des Irrigation et du Drainage
Rainwater harvesting is the accumulation and storage of rainwater for reuse on-site, rather than allowing it to run off. Rainwater can be collected from rivers or roofs, and in many places, the water collected is redirected to a deep pit (well, shaft, or borehole), a reservoir with percolation, or collected from dew or fog with nets or other tools. Its uses include water for gardens, livestock[ irrigation, domestic use with proper treatment, indoor heating for houses, etc. The harvested water can also be used as drinking water, longer-term storage, and for other purposes such as groundwater recharge
Concept Note ..... Notification
Renamed Working Group on Rain Water Harvesting (WG-RWH) as Working Group on Water Harvesting for Managing Water Scarcity (WG-WHMWS) at the 75th IEC Meeting, Sydney, 2024.
(a) To promote water harvesting as a natural, local, and efficient source of water (including rainwater, soil moisture, and groundwater);
(b) To conduct research and provide advice on water harvesting for managing water scarcity under competing demand;
(c) To organize international workshops and seminars on water harvesting to foster knowledge with all members; and
(d) To develop guidelines for water harvesting including planning, design, storage, distribution, and multiple use of water.

Water Harvesting and Recycling - Indian Experiences by V.N. Sharda, A.K. Sikka, J.S. Samra and Adlul Islam
Renamed Working Group on Rain Water Harvesting (WG-RWH) as Working Group on Water Harvesting for Managing Water Scarcity (WG-WHMWS) at the 75th IEC Meeting, Sydney, 2024.
| Sl. No. | Name | Country | Position | |
|---|---|---|---|---|
| 1 | Dato’ Ir. Hj. Nor Hisham Bin Mohd Ghazali - Vice President Hon. | hi************* | Malaysia | Chair |
| 2 | Dr. Watchara Suiadee - Vice President | wa************* | Thailand | Vice Chair |
| 3 | Dr. Feng-Wen Chen | ch************* | Chinese Taipei Committee | Secretary |
| 4 | Dr. A.K. Randev | ra************* | India | Member |
| 5 | Mr. Ahmet Gökberk Kurmuş | ah************* | Turkey | Member |
| 6 | Dr. Ahmet Seren | as************* | Turkey | Member |
| 7 | Mr. Ali Hassan Hommadi Altai | al************* | Iraq | Member |
| 8 | Mr. Amali A. AMALI - Young Professional | AA************* | Nigeria | Member |
| 9 | Mr. Bashu Dev Lohanee | ba************* | Nepal | Member |
| 10 | Dr. Bing-Chen Jhong | jh************* | Chinese Taipei Committee | Member |
| 11 | Prof. Dato' Dr. Nor Azazi Bin Zakari | re************* | Malaysia | Member |
| 12 | Ir. David Florentino | fl************* | Philippines | Member |
| 13 | Dr. Ding Kunlun - Vice President Hon. | kl************* | China | Member |
| 14 | Prof. (Ms.) Elena Bresci | el************* | Italy | Member |
| 15 | Mr. Franklin E. Dimick - Vice President Hon. | fr************* | USA | Member |
| 16 | Engr. Gulsah Cakir Heikal | gu************* | Turkey | Member |
| 17 | Ms. Haofang Yan - Young Professional | Ya************* | China | Member |
| 18 | Mr. Hasan Burak Yalçın | hb************* | Turkey | Member |
| 19 | Prof. Dr. Hesham Mostafa Mohamed Ali - Vice President Hon. | hm************* | Egypt | Member |
| 20 | Mr. J. Mohan | j.************* | India | Member |
| 21 | Dr. Jaepil Cho | jp************* | South Korea | Member |
| 22 | Dr. Jing Liu | Ji************* | China | Member |
| 23 | Dr. Leila Eamen | Le************* | Canada | Member |
| 24 | Dr. (Ms.) Li-Chi Chiang | lc************* | Chinese Taipei Committee | Member |
| 25 | Prof. MA Chengxiang | ma************* | China | Member |
| 26 | Dr. (Ms.) Mikiko SUGIURA | su************* | Japan | Member |
| 27 | Dr. Ming Young Jan | ag************* | Chinese Taipei Committee | Member |
| 28 | Dr. Ming-Che Hu | mc************* | Chinese Taipei Committee | Member |
| 29 | Engr. Ozden Erturk Gazel | oz************* | Turkey | Member |
| 30 | Prof. Dr. Ragab Ragab - President Hon. | ra************* | United Kingdom | Member |
| 31 | Dr. Ratan Chand Jain | ra************* | India | Member |
| 32 | Dr. Shao Yiu Hsu | sy************* | Chinese Taipei Committee | Member |
| 33 | Dr. Shivaji T. Sangle | sa************* | India | Member |
| 34 | Dr. Shu Yuan Pan | sy************* | Chinese Taipei Committee | Member |
| 35 | Ms. Suchana Acharya | ac************* | Nepal | Member |
| 36 | Dr. Takanori NAGANO | na************* | Japan | Member |
| 37 | Mr. Thayalam Sekaran | th************* | Malaysia | Member |
| 38 | Mr. V.C. Ballard | cl************* | Australia | Member |
| 39 | Mr. Veysel Yildiz | ve************* | Turkey | Member |
| 40 | Dr. Vinod Kumar Tiwari | vi************* | India | Member |
| 41 | Ts Ir Wan Noorul Hafilah Binti Wan Ariffin | no************* | Malaysia | Member |
| 42 | Dr. Warren Helgason | wa************* | Canada | Member |
| 43 | Prof. Xining ZHAO | zx************* | China | Member |
| 44 | Dr. Yaohui Cai - Young Professional | ca************* | China | Member |
| 45 | Dr. (Ms.) YaWen Chueh | ya************* | Chinese Taipei Committee | Member |
| 46 | Mr. Yu Yingduo - Young Professional | yu************* | China | Member |
| 47 | Dr. Yuan-Chien Lin | yc************* | Chinese Taipei Committee | Member |
| 48 | Mr. Zafar Iqbal | zi************* | Pakistan | Member |
| 49 | Dr. Ahmad Taufiq | at************* | Indonesia | Provisional Member |
| 50 | Mr. V. Venkatesan | v.************* | India | Provisional Member |
| 51 | Dr. Zou Zhike - Young Professional | zz************* | China | Provisional Member |
| 52 | Dr. Alok Sikka (IWMI) | a.************* | India | Permanent Observer |
| 53 | Dr. Puspa Raj Khanal | me************* | India | Permanent Observer |

Water Harvesting and Recycling - Indian Experiences by V.N. Sharda, A.K. Sikka, J.S. Samra and Adlul Islam
