The ground water behavior in the Indian sub-continent is highly complicated due to the occurrence of diversified geological formations with considerable lithological and chronological variations, complex tectonic framework, climatological dissimilarities and various hydrochemical conditions.

To depict ground water scenario, water level is monitored during pre monsoon, during monsoon, post monsoon and post irrigation period with reference to spatial behaviour of ground water regime for each monitoring period, pre and post monsoon (seasonal), annual (corresponding period of preceding year) as well as changes with reference to last dec

In West Bengal, ground water level monitoring is being carried out by Central Ground Water Board, Eastern Region from 1500 Ground Water Monitoring Wells covering all districts of West Bengal encompassing various hydrogeological and agro-climatic zones during the month of April, 2019, August, 2019, November, 2019 and January, 2020.

To build a realistic ground water management strategy, assessment of ground water availability and its quality is a pre-requisite. With this in view, Central Ground Water Board has established a network of Ground Water Monitoring Wells (GWMW) tapping different aquifers in the State.

Dissemination of technical information in a way that is very useful to the user agencies is an important aspect that plays a vital role in the safe and optimal development of groundwater resources of our country. As an effort in this direction, Central Ground Water Board is bringing out “Groundwater Year Book” each year.

The ground water level monitoring carried out by Central Ground Water Board, Southern Region, and Hyderabad during 2019-20 is compiled in the form of Ground Water Year Book. It outlines the ground water level behaviour in the current year with reference to the corresponding periods of previous year and also with last decadal mean.

Ground Water Year Book is prepared annually by CGWB depicting changes in ground water regime of the country through different seasons. It is an effort to obtain information on ground water levels through representative monitoring wells. The important attributes of ground water regime monitoring are ground water level.

This training resource book will help the "JAL DOOTS' in empowering the village communities to plan and implement various interventions for augmenting ground water resources and managing its demand, including water conservation & rainwater harvesting, water resources assessment, monitoring of water levels and quality and water budgeting at V

The report 'National Compilation on Dynamic Groundwater Resources of India, 2017' is a compilation of State-wise assessment carried out jointly by CGWB and State Groundwater Departments at periodical intervals under the supervision of State level Committee of the respective States/UTs and under overall guidance of Central Level Expert Group.

The ground water is a replenishable and dynamic resource in nature. For assessing its availability over time and space and ensuing sustainability of the development programs , it becomes essential to continuously or periodically monitor the ground water regime and quality.

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