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| 1 | Transportation of suitable truck mounted DTH & ODEX/Percussion/Calyx/RC. Drilling rigs along with necessary accessories etc. to the site of work and erection of rig including levelling etc. complete in all respects as per the direction of Engineer-in-charge. |
| 2 | Drilling bores of 152mm dia as per IS:2800-1979 using ODEX (TUBEX) attachment required drilling in collapsible starts conglomerate, boulders, pebbles, gravels, silt , clay, etc. including cost of attachements, consumable stores, bits, water POL etc. complete with syustem of sim,ultaneous lowering of 125mm dia normal bore, 5.0mm thick MSERW fin cut casing pipe which will be welded together using 2.5mm or 3.25mm dia. Advani Oerlikon electrodes, with one plain end and the other end chamfered to 50 degrees removing paint on the area to be welded, inclusive of the cost of bio-degradable and non- toxic foam flush etc. complete in all respect as per direction of Engineer-in-charge. MSERW fin cut casing pipe, casinig shoe and bit to be as per requiurement of ODEX to be paid separately per item 4 |
| 3 | From 0 to 10 meter. Depth (1x10=10) |
| 4 | Above 10 meter. (1x80=80) |
| 5 | Supplying and lowering IS marked 125mm NB 5 mm thick fincut MSERW casing pipes as per IS:4270:2001 and requirement of ODEX attachments from approved manufacturers complete in all respects as per direction of Engineer-in-charge. |
| 6 | Providing and fixing suitable casting shoe and bit tube as per requirement of ODEX attachement complete in all respectsas per the directions of the Engineer-in-charge. |
| 7 | Collection and preservation of soil samples in polythene bags complete in all respects as per directions of the Engineer-in-charge. |
| 8 | Development of bore well and yield testing with air-compressor through V-Notch and disinfection etc. complete in all respects as per IS:2800:1979 and as per direction of the Engineer-in-charge. |
| 9 | Supplying and lowering IS marked riser pipes, medium class screwed and socketed and welded as per IS:1239 (Part-I) 1990 with upto date ammendments, electric resistance welded including cost of all cutting, threading and welding , wherever required, in a random length of 3 meter inclusive of transporation charges to the site complete in all respects as per directions of Engineer-in-charge.The seamless sockets shall be provided as per IS:13056-1991 |
| 10 | 32mm dia GMS pipe. |
| 11 | Supplying and erection of IS marked India-mark-II extra deep well hand pump (32mm) conforming to IS:9301 consisting of pump head assembly, cylinder assembly and seven connecting rods complete in all respects for installation of beyond 60 meter as per the direction of the Engineer-in-charge. |
| 12 | Providing and fixing extra connecting rods upto 3 meter length in hand pump as per site conditions complete in all respect. (1x8) |
| 13 | Providing and laying cement concete 1:2:4(1cement:2sand: 4 graded stone aggregate 20mm nominal size) in pedestral 75cmx75cmx40cms (Plateform)including curingcost of earth work in foundation, form work in all leads and lifts complete in all respect as per directions of Engineer-in-charge. |
