Safe and clean water supply for domestic as well as for sustainable supply for irrigation and industrial requirement is toughest challenge due to rapidly declining ground water resources in major part of the state. Monitoring of water level plays important role for effective estimation of ground water resources. Ground Water Year Book 2020-21 of Rajasthan has been prepared to share the groundwater level data collected during pre-monsoon and post-monsoon 2020 and during August 2020 and January 2021. The water quality data of water samples collected during pre-monsoon 2020 is also shared in Ground Water Year Book 2020-21 of Rajsthan State.
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