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| 1 | Drilling work: Drilling of bore hole 55.88 cm dia. thought any kind of soil by adopting any method of drilling (by Direct or Reverse circulation rotary rig) upto required depth including digging trenches and pits. all complete.N.B. a) The rates are inclusive of all reaming operations in case of Direct circulation rig.b) In case the bore hole in decided to be abandoned by the competent authority due to non-availability of suitable thickness of aquifer capable of yielding desire discharge, the payment of abandoned bore hole shall be made (i) at 100% of of the rates in case of drilling by Reverse Circulation Rig and(ii) at 50% of the rates in case of drilling by Direct Circulation Rig.c) Measurment will be taken below ground level taking ground level as zero for payment. |
| 2 | Up to 30 metes below G.L. |
| 3 | Beyond 30 metres and upto 60 mtr |
| 4 | Beyond 60 metres and upto 90 mtr |
| 5 | Labour charges for lowering of ERW pipes,strainers, blank pipe etc. and fitting , fixing and jointingof tube well assembly at site by the welding in a manner as will be specifed by the Engineer-In-Charge. |
| 6 | 200 mm NB Bottom Plug |
| 7 | 200 mm NB Sloted Pipe |
| 8 | 200 mm NB Blank Pipe |
| 9 | 350 mm NB Housing Pipe |
| 10 | Supplying, fitting,fixing including fabrication with required materials ( I.S.-2800 part-I with latest amendments ) as directed by the Engineer-In-Charge and lowering in position etc |
| 11 | 10 mm thick (350X200 mm) M.S. NB reducer of approved quality including socket. |
| 12 | MS Center guide (consisting of 3 nos. 6 mm thick, 50 mm wide, not less than 600 mm long and 125 mm rise of arch) of approved size and quality |
| 13 | M.S. Top cap of suitable size (8 mm thick and approved quality for covering top of housing pipe of 350 mm NB (Top cap will be tack welded with housing pipe at 4 points 90 part) |
| 14 | 100 mm width X 12 mm thick socket / rings made from M.S. flats by rolling process and double butt welding for jointing 350 mm NB pipes |
| 15 | 75 mm widthX 10 mm thick sockets / rings made from M.S. flats by rolling process and double butt welding for jointing 200 mm NB blank / sloted pipes |
| 16 | Supply of gravel for use as peak in tubewell of 2 mm to 4 mm. size (as per IS:4097) for gravel treatment of tubewell including screening, washing, cleaning etc. of the gravels at the site, all complete as per direction of the Engineer-in-charge.ii) For site at any district of West Bengal upto 180 km distance from quarry. |
| 17 | Development of tubewell in accordance with IS: 2800 (part 1)and IS: 11189 to establish maximum rate of usable water yieldwithout sand conent beyond permissible limit with requiredcapacity of compressor ( about 200 psi, 375 cfm Aircompressor,actual psi and cfm depend on tube well headconditions), running the compressor for required time till well isfully developed and followed by development of tube well byover puming with 15% to 25% higher discharge than expecteddischarge of tube well capacity Vertical Trubine pump andcarrying out step-drawdown test, yield test, verticality test etc as per prescribed method all complete including hire & labourcharges of compressor, tools & accessories etc. all as perrequirement and direction of Engineer -In - Charge. i) Depth up to 120 mtr. |
| 18 | Making slots of 75 mm X 1.60 mm size with a minimum clearance of 4.70 mm in between two adjacent slots over the outer surface of 200 mm NB ERW pipes (to be issued departmentally) in 10 (ten) rows (each row consisting of 96 slots) per metre length of ERW pipe with a clearance of 25 mm in between two rows as per drawing and specification including smoothening the edges after slotting, cost of transportation of ERW pipes from Departmental Store to Workshop and back to drilling site, loading, unloading and carrying by head-load where necessary both ways, all complete |
| 19 | Mobilization chages for transporting up site including loading unloading of all plants machineries and equipments required for drilling development and testing of Tube Wells and also cost of construction temporary roads over field and /or cuverts, repairing existing roads over and/ or culverts, repairing existing roads over and / or culverts all complete carrying materials on head carts or boats as the case may be:- For sites with in 4km from all weather metal road. |
| 20 | Electrologging of bore hole of different dia tubewell for locating water bearing strata and saline aquifer, if any, after conducting relevant geographical tests. All test reports, compiled data and raw data sheets should be submitted to the Engineer-in-Charge ( Cost is inclusive of all charges for equipments, labour, data aquisitioon & compilation of data sheets as per direction of the Engineer-in-Charge |
| 21 | Add GST @ 18% on item no. 1 to 8 |
| 22 | Add cess @ 1% on item no. 1 to 9 |
| 23 | Sign Board: Supplying, fitting and fixing including transportation of sign board for identifying the exact location of MINI RLI scheme (one at road side and other at site) the board will be made 3 mm thick MS plate of size 300 mm x 600 mm and fitted and fixed on 50 mm GI Pipe of IS 1239/90 (part-1) including cutting, welding and writting of both sides of Sign board. Base - Yellow, and words - Red. Both bottom end of the stands pipe will be grouted in 1:2:4 CC on a single brick flat soling. This will include one materials and labour complete as per drawing and direction of E.I.C. |
| 24 | Add GST @ 18% on item no. 11 |
| 25 | Add Cess @ 1% on item no.11 to 12 |
| 26 | Internal wiring: Installation of submercible electro motor pumping set of following capacity by using necessary requisite tools and plants by lowering the same within the tubewell housing pipe upto the following depth as per direction by fitting , fixing column pipes and other accessories , fixtures with necessary nuts , bolts , and washers and suspending the entire assembly of pump set vertically by fixing the same supported by MS clamps over the top of housing pipe , binding the motor cable with each column pipes and drawing cable upto pump controller /starter point including opening out of the top cap of housing pipe of the tube well and testing of motor both in loading as well as in unloaded condition before and after installation of the same( a) 100/150/200 cubic meter per hour capacity electro motor pumping set.(ii) Length of pump assembly exceeding 18 meter length |
| 27 | Jointing water proof cable with the leads of the motor including soldering with requisite water proof insulation and proper jointing compound /valcanized rubber tape so that prope water proof insulation is assured. |
| 28 | Supplying, fitting & fixing of M.S. plate of size 40 cm x 40 cm, thickness 6 mm, consisting of two equal halves (40cm x 20 cm), placed over Housing Pipe of HDTW/ MDTW to rest the supporting clamps, with semi circular hole of 170 mm dia. at centre including locking arrangement between the two halves on both sides, including fitting, fixing of 40 mm dia. G.I. bend by making a hole on plate for passing submersible cable smoothly and complete in all respect. |
| 29 | Supplying, fitting & fixing G.I. pipe of TATA make with all necessary accessories specials, viz. socket bend, tee union, cross elbow, nipple, long screw, reducing socket, reducing tee, short piece etc. fitted with holder bats clamps, including cutting pipes, making threads, lifting, fixing etc. complete in all respect including cost of all necessary fittings as required, jointing materials and two coats of painting with approved paint in any position above ground. (No separate payment will be made for accessories, specials)32 mm dia medium quality.(b) 32 mm dia |
| 30 | Supplying, fitting & fixing of 150 mm heavy duty supporting clamps in two halves made of MS flat for holding 150 mm NB column pipe , thickness of the clamp 12 mm width of the clamp 150 mm , extended length of arm 200 mm , space between row 100 mm ,space between bolts in a row 75 mm, equally spaced from the centre line of the arm, dia of bolt 16mm. The gap between the arms of clamp and pipe assembly before tightening should be between 6 mm to 10 mm . Two rows of bolts of 2 nos. in each row of 16 mm size shall be provided on either side of the clamp , in other words there will be fall together 4 rows of bolts with the provision of 8 nos. of bolts with nuts and with springs and flat washers. |
| 31 | Withdrawal of electro motor submersible pumping set of following capacities from within the tube well housing pipe of the following length by using all necessary requisities tools and plants and carefully as per direction of E.I.C. and stacking the same properly at the within the tube well premises complete.(a) 100/150/200 cubic meter per hour capacity electro motor pumping set.i) Length of pump assembly exceeding 18-meter length |
| 32 | Carriage of departmentals from the Departmental store to the work site and return back the damaged/replaced and unused materials to store including loading & unloading complete both sides by Tempo/Van/Rikshaw /Mini truck etc. upto 25 km distance in one way.For delivery pipes etc. |
| 33 | Add GST @ 18% on item no. 14 to 20 |
| 34 | Add Cess @ 1% on item no. 14 to 21 |
| 35 | SUPPLY WORK: Supply of ISI marked 350 mm NBS steel E.R.W Grade Fe - 410 Conforming to IS:4270/2001 with latest amendments plain end with 8mm. Thick, 68.57 Kg/m (each pipe shall be approx. 6.0mtr. In length) |
| 36 | Supply of ISI marked 200 mm NB Steel E.R.W Pipe Grade Fe - 410 Conforming to IS:4270/2001 with latest amendments plain end with 6.4 mm Thick, 33.1 kg/m.(each pipe shall be approx. 6.0mtr. In length)NOTE: 12 mtr. (2 nos.) 200 mm ERW will be supplied from Departmental store. |
| 37 | Submersible Pump Sets, ISI marked-as per IS 8034 for pump and IS : 9283 for motor (read with latest smendment for all IS) d) (150-115 Cum/hr, 17-28 m) (20HP ) with 150 mm outlet (350 mm ) |
| 38 | 3C Flat water proof Cu. Cable ISI marked, IS-6943C X 6 Sq mm Please Enable Macros to View BoQ information |
