It has become imperative on the part of water planners to adopt techniques for quantifying the available groundwater resources for sustainable development and management keeping in mind the scarcity of available water resources versus its demand in the near future. The apparent heterogeneities and complexities present in the hard rock aquifers make it a challenge to tackle groundwater problems. The intricacy increases manifold for the management of groundwater when the hard rock aquifers are situated in arid or semi-arid regions. This study was taken up to generate hydro-geological 220data through field investigations to prepare a groundwater assessment report for the expansion and increase in groundwater extraction of Beekay Steel Plant, Adityapur Industrial Area, Saraikela-Kharswana, so as to study the existing groundwater scenario and impact of the withdrawal of groundwater on groundwater regime in and around the plant area.

The geology and subsurface conditions were studied and interpreted based on the groundwater exploratory data and geological studies made by GSI and AMD. Well inventory with a collection of water samples were done to evaluate the status of groundwater level and water quality in the buffer zone within 10 Km radius from the plant area. The average seasonal fluctuation of the water table works out to be 3.96m. The perusal of concentration of various chemical constituents of water indicates that groundwater is suitable for all the purposes viz. drinking, and domestic purposes. Pumping tests were conducted within the plant area to know the aquifer characteristics, and subsequently, aquifer parameters were calculated. ΔS calculated from drawdown-time curve has been found to be 2.00 m and transmissivity calculated from Jacob’s Method has been found to be 12.096 m²d^–1. The value of the radius of influence (R) comes as 169 m. Low permeability and small radius of influence indicate the marginal impact of pumping on local water regime. It is found that the stage of groundwater development in which the core zone fall, does not exceed 20% and marginal changes occur in the buffer zone after the proposed increase in groundwater extraction, which is a positive factor for taking up groundwater abstraction for the expansion.