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| 1 | Supplying, assembling, lowering and fixing in verticalposition in bore well, ERW (Electric ResistanceWelded) FE 410 mild steel screwed and socketed /plain ended casing pipes of required dia, conformingto IS: 4270, of reputed & approved make, includingpainted with outside surface with two coats ofanticorrosive paint of approved brand andmanufacture, including required hire & labour charges,fittings & accessories, all complete, for all depths, asper direction of Engineer-in-charge. 150 mm nominalsize dia having minimum wall thickness 5.00 mm |
| 2 | Supplying, assembling, lowering and fixing in verticalposition in bore well, ERW (Electric ResistanceWelded) FE 410 plain slotted (having slot of size1.6/3.2 mm) mild steel threaded and socketed/ plainbevel ended pipe (type A) of required dia, conformingto IS: 8110, of reputed and approved make, havingwall thickness not less than 5.40 mm, including paintedwith outside surface with two coats of anticorrosivebitumestic paint of approved brand and manufacture,including hire & labour charges, fittings & accessories,all complete, for all depths, as per direction of Engineer-in-charge. 150 mm nominal size dia |
| 3 | Gravel packing in tubewell construction in accordancewith IS: 4097, including providing gravel fine/ medium/coarse, in required grading & sizes as per actualrequirement, all complete as per direction of Engineerin-charge. |
| 4 | Development of tube well in accordance with IS : 2800(part I) and IS: 11189, to establish maximum rate ofusable water yield without sand content (beyondpermissible limit), with required capacity aircompressor, running the compressor for required timetill well is fully developed, measuring yield of well by\\"V\\" notch method or any other approved method,measuring static level & draw down etc. by step drawdown method, collecting water samples & gettingtested in approved laboratory, i/c disinfection oftubewell, all complete, including hire & labour chargesof air compressor, tools & accessories etc., all as perrequirement and direction of Engineer-in-charge. |
| 5 | Providing and fixing Bail plug/ Bottom plug of requireddia to the bottom of pipe assembly of tubewell as perIS:2800 (part I). 150 mm dia |
| 6 | Boring/drilling bore well of required dia for casing/strainer pipe, by suitable method prescribed in IS: 2800(part I), including collecting samples from differentstrata, preparing and submitting strata chart/ bore log,including hire & running charges of all equipments,tools, plants & machineries required for the job, allcomplete as per direction of Engineer-in-charge, upto90 metre depth below ground level. All types of soil300 mm dia |
| 7 | Boring/drilling bore well of required dia for casing/strainer pipe, by suitable method prescribed in IS: 2800(part I), including collecting samples from differentstrata, preparing and submitting strata chart/bore log,including hire & running charges of all equipments,tools, plants & machineries required for the job, allcomplete as per direction of Engineer -in-charge,beyond 90 metre & upto 150 metre depth belowground level. All types of soil 300 mm dia |
| 8 | Providing and fixing suitable size threaded mild steelcap or spot welded plate to the top of bore wellhousing/ casing pipe, removable as per requirement,all complete for borewell of: 300 mm dia |
| 9 | Providing and fixing M.S. clamp of required dia to thetop of casing/housing pipe of tubewell as per IS: 2800(part I), including necessary bolts & nuts of requiredsize complete. 300 mm dia |
| 10 | Electric logging of the borehole with electronic loggerto determine accurate strata encountered duringdrilling and submission of strata chart indicating position of strainer pipe. Please Enable Macros to View BoQ information |
