Assessment of the Resource availability, planning and budgeting and monitoring utilization.

Evaluate and study of water quality based on water components physical, chemical and biological bedside study and evaluate water resources as a quantity of water and shows the demand of water.

Main components are availability and size of water resource, quality of resource, economic viability and budgeting, demand and utilization planning, and utilization monitoring.

Very broadly, assessment of all types of water resources in terms of quantity and quality (rainfall, surface water / river water, lakes & ponds; groundwater; etc); estimation of utilization of water for various purposes like domestic, agriculture, industry, etc,; demand and supply gap; finding/suggesting of alternative sources; existing water conservation and management strategies; alternative water conservation & management strategies; economic , social and legal aspects of water resources development & management; etc.

N B Narasimha Prasad view is useful for sustainable management of water resources.

The key components of Integrated Water Resources sustainable development, Utilization and Management include but not limited to; Management of water resources at the lowest possible level, Optimizing supply while at the same time preserving the the resource, Managing demand and ensuring it meets the need of all users and the provision of equitable access through participatory and transparent governance and management of the water resource.

Thanks Collins Tay for useful addition in the information for the solution of issue.

Thanks for discussion

To meet current and future water demands, increased attention should be given to precautionary approaches such as innovative uses of natural supplies and new technologies. In the past we have responded by storing runoff in reservoirs, diverting flows from water-abundant to water-scarce regions, and extracting aquifer resources – methods that provided ample water where and when it was needed. These methods are likely to remain part of most water resources development strategies. Non-conventional water resources, such as water reuse and desalination, are being increasingly used and new technologies such as artificial recharge are also becoming more and more common. Capturing rain at the source through rainwater harvesting is yet another method used to increase the availability of natural water sources. In certain regions, an extreme response has been adopted. In some arid countries, where sufficient renewable water resources are not available, non-renewable groundwater reserves are being exploited to support development.

Demand management and conservation are methods that target efficiency. Conservation begins by reducing high losses from water supply distribution systems. Demand management has gone largely unaddressed since most water utilities still focus on infrastructure development rather than on conservation.

It is worth noting that industry’s approach in recent years has been to reduce wastewater and minimize the quantity of processed water needed as this method has proven to be technically feasible and economically advantageous. The demand reduction and efficiency approach should be an integral part of modern water resources management. Its applicability should be promoted while recognizing that it requires a distinct change in the behavioural patterns of institutions, utilities and individuals – a change that will require education, awareness-raising and political commitment to achieve effective implementation.

Institutional responses at different levels are also needed. Some nations have implemented new laws and regulations that point the way forward toward protecting and restoring our water sources. Many nations are adapting emerging technical practices to secure and protect their existing natural water resources and use local knowledge as part of sustainable resource development.

5e. The benefits

There will be economic, social and environmental benefits from carrying out regular Water Resources Assessments (WRAs) in all basins and aquifers in individual nations as well as regionally, where transboundary shared water resources are present.

Modern approaches to WRA are rapidly emerging and now go well beyond the traditional hydraulic and supply-biased studies carried out during the last century. WRAs have been extended to take advantage of the recently recognized benefits that come from using an integrated approach (IWRM) and including ecosystems’ services (ecosystem approach). WRAs continue to fundamentally require well-documented hydrological cycle component data – without this data the evaluation results are unreliable. To be comprehensive and assist in sustainable practices, WRAs should include well-documented user consumption and water quality requirements, accurate use data, estimates of the environmental flow volumes needed to maintain ecosystem resilience, characterization of both point and non-point sources of pollution and the quality of the receiving waters, and the extensive engagement of all water users and other pertinent stakeholders.

Providing incentives to improve demand management efficiencies has proven highly effective in augmenting natural water supplies. WRAs should consider new capacities to use non-conventional water supplies and new technologies to augment existing supplies. A comprehensive WRA must also include social and economic considerations as well as ecosystem needs and contributions.

If climate change follows the projected scenarios, we can expect more erratic weather in the future, including increased variability in precipitation, which will threaten crop yields in both developed and developing countries, while placing more than 2.8 billion people at risk of water shortage. Understanding all aspects of the hydrological cycle is critical if our society is to be able to cope with the many changes we observe.

For more information please visit - https://www.greenfacts.org/en/water-resources/l-3/6-sustainable-management.htm

Saswatik Tripathy's answer is beneficial to understand the issue.

Hello Mr Siva Kumar

I think that Integrated Water Resources sustainable development based on the rational management of surface water and groundwater through the assessment of exact water needs for each sector (drinking, industry, irrigation) on the other hand the reuse of treated water and recycling finally awareness at the subscriber level for less water wastage.

Best regard

Rachid ZEGAIT answer is worth consideration, but these are just some aspects of sustainable development and management of said water resources.