Name of Work: Installationof 18 Nos Medium Deep Tube Well porject _PKG_8_ under Jajpur _Block in Jajpur District.
Sl. No.
Item Description
1
Labour charges for drilling a perfect vertical bore holeofspecified depthbelow ground level in alluvial soil starta by mud rotary Rigdrilling as requiredto suit the site conditions as per the direction ofEngineer-in-charge including supply of Rig with its accessories, tools and plants and all consumables etc.for a finished bore of 450mm dia suitable for lowering of 200mm dia ASTM Schedule-80 PVC pipe for housing fittedwith socket with or without well screen as per the necessity for the soft,medium,hard & boulder formation(PVC casing pipes if required by the contractor to prevent collapse of overburden portion) inclunding lower & withdrawing of casing pipe after drilling 200mm to 450mm dia.in overburden portion.
2
0 Mtr to 30 mtr
3
31 Mtr to 60 mtr
4
61 Mtr to 78 mtr
5
Cost of 200 mm dia PVC ASTM (D) Sch. 80 casing pipe of reputed make as per ASTM(D) 1785/2004 withManufacture name should prominently be marked with CIPET test certification in the body of the pipe in indelible ink or stenciled to the certification of Engineer-in-Charge, including Trasnportation to site, etc.0 to 60 M= 60 Mtr.
6
Cost of 200 mm dia PVC Cone
7
Cost of 200 mm dia PVC end cap
8
Cost of 200 mm dia PVC threaded nipple
9
Bentonite powder(Drilling Mud)Type-II high grade confirming to IS No.6186/86
10
Cost of graded and washed \"B\" grade gravel size (2.75mm to3.55mm)suitable for use as packing materials of available approved rate of O.L.I.C. Cuttack circle & Transportation cost as per actual on the current OPWD schedule of rates & unit cost. Royality @ Rs.180.00 per cum. is provided.
11
Cost of labour charges for slottingof 200 mm dia PVC (ASTM-D) Sch-80 pipe-
12
Loweringof 200 mm dia ASTMschedule-80 PVC casing and slotted pipe, cone,nipple etc.as per the necesscity & fitted and fixed up in perfectlyvertical position and keeping the top of the casing pipe threaded1 Mtr. above the ground level, including plugging the tube well to prevent entry of foreignmaterials.
13
Cleaning and developing the tube well using their own compressor having 250/300 CFM at 10.5Kg/cm2 continuously worked till clear and adequate discharge is obtained from the well including supply and use of all necessary equipment and labour as per the direction of the Engineer-in-Charge.
14
Earth works-Excavation of mud pit, settling pits ,Mud flow channel &\" V\" Notch channel etc.& refilling these earth works ( 46.61 cum.)
15
Transportation of water to mud pit through water tanker
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