Improvement of Chief Engineers Office Complex and Providing Lift ( Ph-IV).(Along with renovation of overseers and driver quarters at Chandmari and staff quarters at divisional Office Complex at Rehabari) PACKAGE 5 RETENDER

Amount

Item No 1:- Drilling with drill bit in overburden portion of soil formation including collection of soil sample at every 3.0m depth wherever there is a change of strata in sample boxes with distinguishing marks upto the depth of rock formation and withdrawing the drill bit for lowering casing as directed with 245mm to 300mm dia drill bit.

Item No 2 :- Casing/ sinking/lowering of 200 mm dia MS pipe including cost of pipe and labour charge for casing, welding of joint by welding machine and sinking by drilling in portion all complete as directed by department.

Item-3 :- Drilling with drilling rig using D.T.H. in all kinds of rock formation including collection of sample at every 3.0 m depth of boring or wherever there is a change of strata in simple boxes with distinguishing marks upto a required depth of boring along with breaking rock fracture for desired discharge, withdrawing drilling rod and finishing the borehole by ramming upto a required dia upto the bottom and washing the well as per direction of the department all complete including testing of yield and drawdown of SWL of the DTW in presence of Engineer/ incharge with submission of all report and lithology of the well as directed by the depatment.

Item No 4: Supplying including installation, connection as approved by the Deptt., testing and commissioning of JET PUMP SET (HORIZONTAL) complete as directed and specified by the deptt. 1 HP single Phase jet pump set (Horizontal(Crompton Greaves/ Aquatic/ CRI/ V-Guard make) 2900 rpm with DOL Starter ( Crompton Greaves/ Control & Switch Gear/ BCH/ L& T / Siemens make) .