Rainwater Harvesting

Content Courtesy: Rotary Madras South

Talk by Sekhar Raghavan, Rain Centre, at the Rotary Club of Madras South weekly meeting on 26 April 2011 on rainwater harvesting and ecological sanitation - Part 1.

Jalyatra - Exploring India's traditional water management systems, by Nitya Jacob is an ecological travelogue that looks at links between water, society and places It describes in detail what existed, how it fitted into the socio-cultural milieu and was appropriate for the local climate and geography. It then examines reasons for their decline, as indeed most have, in recent decades.

While recording the dismal state of traditional systems, the author stumbles upon small initiatives that have brought about significant transformation across regions. It refers to noisy hidrums and gharaats, the river-run flour mills of Uttaranchal, the technologies whose potential has yet to be fully realised. It looks at water harvesting structures of southern India—the eris and ooranis. However, it admits that the average person is singularly uninterested in protecting the environment.

Jalyatra captures the efforts of NGOs and enlightened individuals striving to revive these systems. It makes the case for a mass movement to revive traditional water management systems, especially village ponds, across the country as the way to ensure water security in India. In Chambal, the author meets Brij Mohan Gujjar, dacoit turned water conservationist, who is doing valuable work on the check dams designed to control the flow of water in the ravines; and in Shillong, Lan Potham shows him the uses of the easily available bamboo to construct the shyngiar which irrigates his areca nut plantation.

Abstract:

. I had shared how Megh Pyne Abhiyan through its local partner - Samta in Khagaria (supported by Gramyasheel, Kosi Seva Sadan, Ghoghardiha Prakhand Swarajya Vikas Sangh and Water Action) has been able to collaborate with the district administration to mainstream issues concerning water and sanitation for the flood prone areas.

In Supaul, the district administration requested our local partner, Gramyasheel to write about alternative drinking water practices (appropriate for the district) for a publication - Supaul Zila Ki Smarika, brought out by the district administration. A definite indication of the WATSAN practices being recognized at the local level. Though the collaboration is an ongoing process which would lead to positive results if time, ideas and perseverance are invested appropriately.

 The area's geological, hydrological and climatic facets are studied to arrive at a series of recommendations, which not only include the type of recharge structures and their design but also their location.

The report is divided into 9 chapters which are

It also explains the various laws that have been put in place to increase groundwater replenishment.

. Under the amendment the Bangalore Water Supply and Sewerage Board (BWSSB) is empowered to install rainwater harvesting systems if people do not comply and recover the cost from them.

The quality of drinking water is a vital element of public health and well-being. The most effective means of consistently ensuring the safety of a drinking-water supply is through the use of a comprehensive risk assessment and risk management approach that encompasses all steps in water supply from catchment to consumer.

WHO guidelines on water quality term these approaches as water safety plans (WSPs), developed to organize, systematize and apply management practices in drinking-water quality.