8126/SAR-T-42/2026-27BORING OF NEW FRESH WATER SUBMERSIBLE PUMP FOR SWIMMING POOL AT OLD CAMP, PTS (VIKAS) SARSAWA UNDER GE (AF) SARSAWA

Drilling of bore hole of minimum 300 mm diameter by Down-The-Hole (DTH) drilling method in any type of strata RM including hard rock, soft rock, boulders, gravel, sand, clay or mixed soil conditions, to the required depth not exceeding 250 metres below ground level, complete with deployment of drilling rig, casing pipes wherever necessary. flushing medium, labour, tools, tackles and all ancillary operations. The item includes withdrawal of drilling equipment, collection and disposal of excavated cuttings, slurry and surplus earth to a distance not exceeding 50 metres from the bore location, dressing of site and making good disturbed surfaces, complete in all respects and as directed by the Engineer-in-Charge.

Supply, lowering and fixing in position 200 mm nominal bore MS casing pipe conforming to IS:3589, heavy duty class. RM manufactured from ERW steel tubes of minimum 6 mm wall thickness, complete with factory-fabricated socketed ends duly welded on both sides for jointing. The item includes transportation, handling, lowering into bore hole. alignment, welding/jointing of pipe sections, cutting, threading (if required), testing and all labour, tools, tackles and accessories necessary for proper installation in the bore well, complete in all respects and as specified and directed by the Engineer-in-Charge.

Supply, lowering and fixing in position 200 mm nominal bore MS slotted casing/screen pipe conforming to IS:3589, RM heavy duty class, manufactured from 6 mm thick ERW steel tube, having approximately 1000 machine-cut slots per metre length of size 1.58 mm x 75 mm uniformly distributed over the pipe surface to provide effective water intake. The pipe shall be provided with socketed ends duly welded on both sides for secure jointing. The item includes transportation, handling, lowering into bore hole, alignment, welding/jointing of pipe sections, cutting, testing and all labour, tools, tackles and accessories required for complete installation of the well screen assembly, complete in all respects and as specified and directed by the Engineer-in-Charge.

Supply and fixing of well cap suitable for 200 mm diameter bore well, fabricated from 3.15 mm thick mild steel sheet, consisting of two-piece construction for ease of installation and maintenance, complete with central cut-out/opening for passage of column pipe, cable and associated fittings. The well cap shall be properly aligned, welded and machined to ensure a secure fit over the casing pipe, including all necessary cutting, drilling, welding, nuts, bolts, accessories, labour, tools and tackles required for complete installation. The item shall be executed complete in all respects and as specified and directed by the Engineer-in-Charge.

Supply and fixing of housing clamp suitable for 200 mm diameter bore well casing pipe, fabricated from MS flat of size Set of 100 mm x 10 mm and 600 mm length, complete with 4 Nos. 20 mm diameter high tensile bolts, nuts and washers of Two suitable length. The item includes cutting, bending, drilling holes of required size, fabrication, fitting and fixing in position, complete with surface preparation and application of one coat of red oxide zinc chromate primer followed by two coats of synthetic enamel paint of approved shade. The item also includes all labour, tools, tackles and incidental works required for proper installation, complete in all respects and as specified and directed by the Engineer-in-Charge.

S&F of housing clamp suitable for 50 mm diameter bore/well pipe, fabricated from MS flat of size 150 mm 12 mm and 800 mm length, complete with 4 Nos. 20 mm diameter bolts, nuts and washers of suitable length. The Two item includes cutting, bending, drilling holes of required size, fabrication and fixing in position for supporting the column pipe assembly. mbly. The clamp sha clamp shall be cleaned and treated with one coat of red oxide primer followed by two coats of approved synthetic enamel paint. The item includes all materials, labour, tools, tackles, welding, fastening and incidental works required for complete installation, complete in all respects and as specified and directed by the Engineer-in-Charge.

Development of tube well by air compressor method using compressor of minimum capacity 630 CFM at 100 PSI Hrs pressure, after completion of drilling and installation of casing/screen pipes, including repeated surging, air lifting. flushing and cleaning operations to remove drilling mud, fine sand, sit and other foreign materials from the bore well until clear and sand-free water is obtained. The item includes deployment of compressor, air lines, tools, tackles. labour, fuel, equipment and all ancillary operations required for proper development of the tube well to achieve optimum yield and efficiency, complete in all respects and as specified and directed by the Engineer-in-Charge.

Supply and packing of pea gravel of size 2 mm to 5 mm conforming to relevant IS specifications, consisting of clean, hard, durable, rounded and well-graded natural gravel obtained directly from approved river bed sources, free from dust, clay, organic matter and other deleterious materials. The item includes transportation to site and placing/packing of gravel shrouding uniformly around the slotted screen pipe and casing pipe within the annular space of the bore well from bottom of the screen assembly up to ground level, ensuring proper settlement and compaction to form an effective filter media. The item includes all materials, labour, tools, tackles and incidental operations required for complete gravel packing of the tube well, complete in all respects and as specified and directed by the Engineer-in-Charge.

M&L for Yield test for borewell by continously pumping for 16 HRs to determine safe pumping yield all as specified Each and directed by Engr-in-charge.

M&L for carrying out electric logging of pilot bore using suitable geophysical logging equipment for Each accurate delineation and identification of water-bearing granular formations/aquifer zones, determination of lithological Job characteristics, thickness and depth of strata, and assessment of groundwater quality parameters. The item includes mobilization of logging unit, conducting resistivity, spontaneous potential (SP) and other relevant evant geophysical logs as required, recording and processing of data, preparation and interpretation of log charts, identification of suitable screen placement zones, submission of detailed technical report with recommendations, and all labour, equipment tools, tackles and incidental charges required for completion of the work, complete in all respects and as specified.