2. In this Ordinance, unless there is anything repugnant in the subject or context,-(a) “aquifer” means a body of saturated soil at any depth below ground level that can store and transmit sufficient quantity of water to the wells; (b) “Chairman” means the Chairman of the Upazila Parishad;(c) “Committee” means an Upazila Irrigation Committee;(d) “deep tube well” means a tube well called as such operated by a submersible pump set or turbine pump coupled with a prime mover capable of pumping ground water when the pumped water level depth is more than 7 metres;(e) “deep set hand-pumped tube well” means a hand-pumped well used for either irrigation or water supply where the pump valve is set below the surface and operated remotely by a pump rod operated from the surface and is capable of pumping ground water when the pumped water level depth is more than 8 metres;(f) “drawdown” means the difference in ground water level between static water level and pumped water level;(g) “prescribed” means prescribed by rules made under this Ordinance; (h) “pumped water level” means the depth from ground level to the saturated water level measured in a well when the well is pumping;(i) “shallow tube well” means a tube well called as such operated by a centrifugal pump coupled with a prime mover but only capable of pumping water when the vertical distance between the centrifugal pump and the pumped water level depth is within 7 metres;(j) “static water level” means the depth from ground level to the saturated water level beneath the ground surface where no pumping has taken place;(k) “suction lift hand-pumped tube well” means hand-pumped well used for either irrigation or potable water supply when the pump valves are situated above ground level but is only capable of operation when the vertical distance between the pump valve and the pumped water level depth is within 8 metres;(l) “tube well” means a deep tube well, shallow tube well, suction lift hand-pumped well or deep set hand-pumped well used for irrigation or water supply;(m) “Upazila Irrigation Committee” means a Upazila Irrigation Committee constituted under section 4 and includes a Thana Irrigation Committee in a Thana which has not been declared a Upazila;(n) “Upazila Parishad” means a Upazila Parishad constituted under the Local Government (Upazila Parishad and Upazila Administration Reorganisation) Ordinance, 1982 (LIX of 1982), and includes a Thana Parishad in a Thana which has not been declared a Upazila.