Boring of Deep Tube Well 1 unit for the Central Water Supply Scheme II at Tezpur University Campus

Amount

Preparation of site for placement of the drilling rig including excavation of mud pit. Circulation drain collection chamber etc. all complete as directed.

Movement of Rig from the Divisional Head Quarter to the drilling site including cost of P.O.L. all completed as directed.

Transportation of all ancillary equipments, campmaterials, welding set, rig accessories etc. from Divisional Head Quarter to worksite to and fro. Including cost of P.O.L. all complete as directed.

b) beyond 100.0 km distance from divisional H.Q

Transportation of all store materials likes pipes strainer cone socket clamp bentonite etc. from divisional head quarter to worksite to and fro including cost of P.O.L. all complete as directed.

b) beyond 100.0 km distance from divisional H.Q

Transportation of air compressor from divisional head quarter to worksite to and fro including cost of P.O.L all complete as directed.

b) beyond 100.0 km distance from divisional H.Q

Construction of temporary accommodation and low cost sanitary facility for drilling staff including cost of camp materials viz. cots tables chairs utensils dresses safety helmets etc. and dismantling the accommodation after completion of the work all complete as directed.

Reboring in hard soil/pebble/gravel by bit of size either 14 or 16 or 18 from 8½ or 9⅝ or 12 all complete as directed.

Casing/sinking/lowering of UPVC pipe including cost of pipe and labour charge of casing Jointing of UPVC Pipe by appropriate instrument and sinking by drilling rig in all portion all complete as per IS 12818:2010.

a)300 mm dia Housing/Blind UPVC Pipe of minimum 14.5 mm and maximum 16.2 mm wall thickness.

b)300/250 mm dia Slotted UPVC Pipe of minimum 14.5 mm and maximum 16.2 mm wall thickness.

Extraction of drilling pipes/bits against skin friction at the end of each day and after completion of the opertaion including washing of the bore hole all complete as directed.

Developing of the D.T.W with air compressor make kirloskar/cummins all complete as directed.

Supplying and packing pea gravel around the periphery of casing including screening washing etc. all complete as directed.

Labour charge for providing bentonite clay packing (including the cost of bentonite clay) around 150/200 mm dia tube well up to depth of 6 m from top with 250 mm dia boring including supplying the bentonite clay and carriage of materials all complete as directed and specified.

M/S N.A. Enterprise (BID ID -3134974)