Installation of 200mm dia Tube Wells in Mahanga and Salipur block, Tirtol block in Cuttack and Jagatsinghpur Distrit

Amount

Labour for drilling of perfect vertical bore hole of specified depth below ground level in alluvial soil strata by mud rotary rig drilling as required to suit the site condition as per the direction of Engineer-in-Charge including supply of Rig with it’s accessories, tools and plant and consumables etc. for lowering of finished bore for 450mm dia & suitable for lowering of 200mm dia PVC pipes for housing, fitted with socket with or without well screen as per the necessity for the soft, medium, hard and boulder formation (G.I./PVC casing pipes if required by the contractor to prevent collapse of over bourden portion ) including lower and withdrawing of casing pipe after drilling 200mm to 450mm dia in over bourden portion up to 100 Mtr. 0 mtr. to 100 Mtr

Supply of all labour and T & P for lowering following size G.I./PVC pipes with or without slotted pipes as per the necessity from ground level and fitted and fixed up in perfectly vertical position including cutting and threading pipe and slotted pipe and fixing all joint materials, tools and plants etc. complete and keeping the top of the casing pipe threaded including plugging tube wells to prevent entry to foreign materials from above excluding cost of fittings and jointing materials and packing gravels around the casing in the annular space as per the direction of the Engineer 0 Mtr to 100 Mtr

Providing of 200 mm dia PVC well casing as per ASTM-D-1785/2004 ( Schedule -80) blue in colour having specific gravitry of the materials of the pipe 1.40 to1.46 gms/cc straight length of 3 mtrs PVC Pipes including transportation to site etc. complete as per direction of Engineer-in-charge.

Cost of slotting charges of 200mm dia PVC(ASTM-D)Sch.-80 pipe

Cost of bentonite drilling mud including transportation to site,etc.

Providing of Graded and washed gravel of ‘B’ grade including transportation to site etc. complete as per direction of Engineer-in-charge.

Cost of 200mm dia PVC Cone

Cost of 200mm dia PVC end cap

Cost of 200mm dia PVC Nipple

Cleaning and developing the production well using own Air compressor continuously worked till clear and adequate discharge is obtained from the tube well including supply and use of all necessary equipment and labour as per the direction of the Engineer-in-Charge.

Excavation of mud pit, settling pit & fluid channel & back filling with preparation of approches to movement of rig & ancillaries etc.Complete.

BRAJENDRA PANIGRAHI

SURESH MAJHI