This report on “Dynamic Ground Water Resources of Maharashtra (2004)” presents the groundwater estimates for the State of Maharashtra as computed by the Central Ground Water Board (CGWB) and Groundwater Survey and Development Agency (GSDA) based on the guidelines given by the Groundwater Estimation Committee (GEC-1997) constituted by Ministry of Water Resources (Government of India).
The report is structured as follows -
Chapter 1: Introduction
Chapter 2: About Maharashtra
Chapter 3: Ground Water Resource Estimation Methodology, 1997
Chapter 4: Computation of groundwater resources in the State
Justification for reduction in recharge
Annexures
For the purpose of groundwater estimation and evaluation the State was divided into 1505 elementary watersheds. The recharge was estimated for the groundwater worthy area of all the watersheds while the non-worthy area comprising of steep slopes more than 20 per cent, hill tops and rock waste have been left out. Each watershed was further delineated into groundwater poor quality area, where the quality of the groundwater was beyond the usable limits as also into command and non-command area. Likewise each watershed was divided into three assessment subunits. But all the subunits were not present in the single watershed. Hence, the assessment was carried out on a watershed basis, although initially the assessment was carried out for the command and non-command areas.
The groundwater resource estimation of Maharashtra for the year 2004 based on the GEC 1997 guidelines indicates that –
It is recommended that assessment of hydrologic budget of the area may be carried out periodically giving the due considerations to the prevailing groundwater development scenario and constituent modification in the recharge-discharge regime.
Download the report and the annexures below -