Public Health Engineering Department-PHED has published Sinking Of 300 Mm X 200 Mm Dia 2Nd Tubewell By Reverse Rotary Method Of Drilling For Augmentation Of Sukhani Pwss Zone- Iii At Rajganj Block Under Jalpaiguri Division P.H.E. Dte.. Submission Date for this Tender is 05-02-2022. Tube Well Tenders in jalpaiguri West Bengal. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Site Preparation, Temporary Latrine, Placement & levelling of Rig Machine, Mast hoisting and Casing drilling (Upto 6 mtr.) Placement of Casing with all allied works necessary to commence drilling woks and wind up of all machineries after completion of Drilling. |
| 2 | Drilling by Reverse Rotary method of drilling using9 7/8” dia.bit for pilot bore follwed by subsequently reaming using 12 1/4” dia. ,15 " dia. and 17.5" dia. Rock Roller Bits/ Drag Bits in consolidated, semi consolidated and soft formation up to required depth including casing boring and casing lowering as required includingcost of fuels and lubricants etc. as required for drilling. |
| 3 | Note: 1)Rate only for pilot drilling will be @ 50%. of item rate. 2)Ratefor reaming by 12 1/4 " dia. bit will be @ 14% of item rate. 3)Ratefor reaming by 15 " dia. bit will be @ 16% of item rate. 4)Ratefor reaming by 17.5 " dia. bit will be @ 20% of item rate. |
| 4 | a) from 6 mtr to 60 mtr. |
| 5 | b) from 60 mtr to 90 mtr. |
| 6 | c) from 90 mtr to 93 mtr. |
| 7 | Lowering the tube well assembly (UPVC Casing pipe ,well pipe, strainer along with UPVC accessories) vertically in a position with proper lowering arrangement by applying necessary jointing compound including labour cost for subsequent gravel packing and machine operation cost etc. |
| 8 | Cost of Consumables for drilling rigs and machineries. |
| 9 | Development (Min. 8 Hr. continuous) of tube well by using suitable air compressor (Min. Capacity: 600CFM & operating Pressure 14 Bar) followed by yield testing with BHT pump (Head :45 to 50mtr.,Discharge :1100 to 1000 LPM and 25 BHP engine)all complete includingTo & Fro Transportation cost and Cost of fuels, lubricants & Labour etc. |
| 10 | Water sample collection and chemical test including Arsenic Test. |
| 11 | Transportation cost of drilling equipmentand accessories rig machine etc. including cost of fuel,Lubricant & loading unloadingthe materials from store/stack yard /suppliers godown and unloading /stacking the same at site. (upto 60.0 km distance) |
| 12 | Supply and delivery of UPVC pipe (CM) conforming to IS 12818:2010. (CIPET Certified) |
| 13 | a) 300 mm dia. |
| 14 | b) 200 mm dia. |
| 15 | Supply and delivery of UPVCMedium Well Screen (RMS) Pipes with Ribs conforming to IS 12818:2010. (CIPET Certified) |
| 16 | a) 200 mm dia. |
| 17 | Supply and delivery ofUPVCReducer |
| 18 | 300mmx 200 mm dia. (300mmx250mm-1 no & 250mm x 200mm-1 no) |
| 19 | Supply and delivery of UPVC Cap |
| 20 | 300 mm dia. |
| 21 | Supply and delivery of M.S. Housing clamp 250 mm dia. |
| 22 | Supply and delivery of Washed gravels size ranging from 1.80 mm to 4.74 mm. conforming to IS 4097 : 1967. |
| 23 | Supply and delivery of Bentonite Powder conforming to IS 6186 : 1986. |
| 24 | Electro-logging charge. |
| 25 | Add GST @ 12% |
| 26 | Add Labour Wlfare Cess @1% |
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