Groundwater Department is the nodal agency for groundwater investigation and construction of groundwater extraction structures in the State. The department has started functioning as a part of Agriculture Department and later evolved as an independent department in the year 1978. The initial focus of the department was to provide solution to the irrigation needs and later extended to domestic and industrial needs also. Ever since its inception, Groundwater Department has been dealing with various groundwater related issues and has been a key service provider to all the sectors across the State. The department is also presently engaged in implementing mini water supply schemes, conservation and management of groundwater resources and groundwater regime monitoring.

The department is functioning under Ministry of Water Resources; Government of Kerala .The Department is headed by the Director and has officers in various wings to assist him. There are 14 district officers to implement the different schemes of the department and in addition there is an analytical lab level II+ in Thiruvananthapuram and 2 regional analytical lab level II in Ernakulam & Kozhikode and a central workshop and stores, Kollam.