Details: drilling of bore well for tube well construction by dc/rc/dth rig machine including transportation, errection, dismantling of rig and associated t&p complete in all respect including all material, labour etc. transportation, errection and dismantling of rig machine. dc/rc drilling. drilling of 500 mm dia bore from g.l. to 65 m bgl drilling of 450 mm dia bore from 65 m bgl to 135 m bgl logging of bore hole by departmental / approved electrical logger. supply of pea gravel lowering of tube well assembly duly welded including welding electrode and shrouding of pea gravel complete in all respect. (note-axial length of reducer without ring shall be measured with casing pipe.) 200 mm dia 150 mm dia up to 110 mtr. development of tube well transportation, installation dismantling of 250 psi air compressor development by 250 psi air compressor.
Sector: Water supply and Sewerage