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| 1 | Drilling of 550mm dia bore with Reverse Rotatry Rig in all kinds of soil including the cost of consumable stores, fuel oil and transportation of rig to the site. complete in all respect.Drilling of 550mm dia bore with Reverse Rotatry Rig Upto 150 m depth BGL. |
| 2 | Drilling of 550mm dia bore with Reverse Rotatry Rig Beyond 150 m depth BGL up to 300 Mtr |
| 3 | In case the bore is converted into a tube-well payment of bore shall be made up to the bail plug plus margin (7% of main bore drilling or as actual as per field requirement whichever is less) required for sustaining the main bore. The test bore beyond margin shall be paid at the rate of test bore drilling. |
| 4 | In case the bore is converted into a tube-well payment of bore shall be made up to the bail plug plus margin (7% of main bore drilling or as actual as per field requirement whichever is less) required for sustaining the main bore. The test bore beyond margin shall be paid at the rate of test bore drilling. |
| 5 | Making electric logging of borehole with electronic well logger including cost of equipment at site etc.complete in all respect. |
| 6 | Supplying, lowering of MS Pipe as per IS: 4270-2001 including MS sockets having dimensions as per IS code duly welded with MS electrode to have extra strength to lower the pipe into tubewell bore.250mmnominal diameter (weight 52.3 kg per metre) 8.0 mm thickness |
| 7 | 200 mm nominal diameter (weight33.6 kg per meter) 6.4 mm thickness |
| 8 | Supplying, Fixing & Lowering of Stainless Steel Cage type wire wound screen as per IS:8110-2000 or latest ISI marked, Duly welded with suitable grade S.S welding electrode to lower the strainer into tubewell bore.200mm Steel Strainer (slot size 0.75mm) 6.30 mm thickness |
| 9 | Providing & fixing M.S taper/readucer made out of 6mm thick M.S sheet complete in all respect.Reducer 250mm x200mm |
| 10 | Supplying, Fixing and Lowering of Stainless Steel Socket as per IS 8110-2000 or latest, ISI marked duly welded with suitable grade SS welding electrod to lower the strainer into tubewell bore complete in all respect.200 mm internal diameter |
| 11 | Supplying, Lowering and Fixing of M.S. special socket to connect SS Strainer to M.S. Pipe duly welded with suitable grade welding electrode complete in all respect.200 mm internal diameter |
| 12 | Supplying and fixing mild steel centering guides made out of 32mm X 6mm thick M.S bar complete in all respect.(a) Strainer & MS pipe should be properly jointed with sockets and duly welded to ensure maximum strength of joint.(b) A steel strip of suitable size should be welded across the length of strainer to provide additional strength to the tubewell assembley. |
| 13 | Supplying at site Wooden box of suitable size with Lid & locking arrangment for preserving strata sample collected from the bore. |
| 14 | Collection of seive sample from different strata and testing of sample from approved laboratory (Physical & chemical Analysis) |
| 15 | Supplying at site of Gravel of 1/6\\" to 1/8\\" sizes including pouring and packing in the annual space between the pipe assembly and the bore. The gravel should be free from dust, dirt, or the vegetable manner as per IS 4097-1967 with latest amendments(to be paid as per actual length of pipe) |
| 16 | Supplying and fixing M.S well cap having thread to fix on housing pipe complete in all respect.250 mm internal diameter |
| 17 | Supplying & fixing of bail plug of M.S. pipe complete with inverted U-hook attached to the bottom plug complete in all respect.200 mm nominal diameter (weight33.6 kg per meter) 6.4 mm thickness |
| 18 | Supplying & fixing of M.S. Clamp of size 150mm x 12mm made out of MS Flat 1.52 m long, suitable to fit the Housing pipe including the cost of Nut & Bolts of suitable size complete in all respect. |
| 19 | Development of stabillizing of the tubewell with air compressor of required capacity as directed by the Engineer-in-charge including cost of tools, appliances & consumable to the satisfaction of Engineer-in-charge.Capacity of Air compressor 550 cfm at 600 PSI |
| 20 | Development of stabillizing of the tubewell with submersible pump of required capacity as directed by the Engineer-in-charge including cost of tools, appliances & consumable to the satisfaction of Engineer-in-charge. |
| 21 | Testing of water sample for Heavy metal from approved laboratory (Toxic material such as Arsenic, lead, mercury, pesticide Urainium etc.) |
| 22 | Provision for clay seal of three meter thick for tubewell for outside the pump chamber as per IS:2800:2019 complete in all respect. |
| 23 | Provision for sterilisation of Tubewell complete in all respect. Please Enable Macros to View BoQ information |
