Re Drilling and Maintenance of Pump House of 101T Bardhanberia S DTW at Mouza Bardhanberia GP Bairampur JL No 77 Plot No 873 under Barasat AI Division under Core Sector Program for the Financial Year 2025 26

Part- A : Drilling, installation, Development : Drilling of bore hole 55.88 cm dia through 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 etc. all complete. (i) Upto 30 metres below G.L.

(ii) beyond 30 metres and upto 60 metres.

(iii) beyond 60 metres and upto 90 metres

(iv) beyond 90 metres and upto 120 metres

Labour charges for lowering of ERW pipes, strainers, blank pipe etc. and fitting, fixing and jointing of tubewell assembly at site by welding in a manner as will be specified by the Engineer-in-charge. (i) 200 mm NB Blank pipe, Slotted pipe & Bottom Plug

(ii) 350 mm NB Housing pipe

Supplying, fitting, fixing including fabrication with required materials (IS -2800 Part -I with latest amendments) as directed by the Engineer-in-charge and lowering in position etc. (i) 10 mm. thick (350mm x 200mm) NB M.S. Reducer of approved quality including socket

(ii) M.S. Centre 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 quality.

((iii) 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° apart).

(iv) 100 mm width × 12 mm thick Sockets / Rings made from MS Flats by rolling process and double butt welding for jointing 350 mm NB Pipe.

(v) 75 mm width × 10 mm thick Sockets / Rings made form MS Flats by rolling process and double butt welding for jointing 200 mm NB Pipe.

Supply of gravel for use as pack in tube well of 2 mm to 4 mm. size (as per IS: 4097) and 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. i) For sites within 4 Km. from all weather metal road

Development of tubewell in accordance with IS: 2800 (part 1) and IS: 11189 to establish maximum rate of usable water yield without sand conent beyond permissible limit with required capacity of compressor ( about 200 psi, 375 cfm Aircompressor, actual psi and cfm depend on tube well head conditions), running the compressor for required time till well is fully developed and followed by development of tube well by over puming with 15% to 25% higher discharge than expected discharge of tube well capacity Vertical Trubine pump and carrying out step-drawdown test, yield test, verticality test etc as per prescribed method all complete including hire & labour charges of compressor, tools & accessories etc. all as per requirement and direction of Engineer -In - Charge. Depth beyond 120 meter upto 200 meter. NOTE : In case of Depth upto 120 metre rate should be taken as @ Rs. 36469.00/No. .

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.

Mobilisation charges for transporting upto site including loading, unloading of all plants, machinaries & equipments required for drilling, development and testing of Tubewells and also the cost of construction of temporary roads over field and / or culverts, repairing existing roads and / or culverts all complete, carrying materials on head load, carts or boats as the case may be :- (i) For sites within 4 km from all weather metal road.

Electrologging of bore hole of different dia tubewell for locating water bearing strata and saline aquifer, if any, after conducting relevant geophysical 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 aquisition & compilation of data sheets as per direction of the Engineer-in-charge)

Dismantling all types of masonry excepting cement concrete plain or reinforced, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m. a) In ground floor including roof.

Dismantling R.C. floor, roof, beams etc. including cutting rods and removing rubbish as directed within a lead of 75 m. including stacking of steel bars.

Brick work with 1st class bricks in cement mortar (1:6) (b) Superstructure,Ground floor

25mm. thick damp proof course with cement concrete with stone chips (1:1.5:3) [with graded stone aggregate 10 mm nominal size] and admixture of water proofing compound as per manufacturer's specification followed by two coat of polymer based paint, (1st coat after 4 to 5 days of concrete laying and 2 nd coat just before brick masonry work) as directed (cost of water proofing compound & polymer based paint to be paid separately).( Chequering not required over concrete or painted surface). [Note: - Waterproofing as per item NO 60, polymer based paint as per item 59 (a) of Section (C).

125 mm. thick brick work with 1st class bricks in cement mortar (1:4) in ground floor.

Hire and labour charges for shuttering with centering and necessary staging upto 4 m using approved stout props and thick hard wood planks of approved thickness with required bracing for concrete slabs, beams and columns, lintels curved or straight including fitting, fixing and striking out after completion of works (upto roof of ground floor) (a) 25 mm to 30 mm thick wooden shuttering as per decision & direction of Engineer-In-Charge.

Ordinary Cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement if any, in ground floor as per relevant IS codes (A) [Pakur Variety]

Reinforcement for reinforced concrete work in all sorts of structures including distribution bars, stirrups, binders etc initial straightening and removal of loose rust (if necessary), cutting to requisite length, hooking and bending to correct shape, placing in proper position and binding with 16 gauge black annealed wire at every intersection, complete as per drawing and direction.(a) For works in foundation, basement and upto roof of ground floor/upto 4 m. For Tor steel / Mild steel.Other than SAIL / TATA / RINL

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary (Ground floor).[Excluding cost of chipping over concrete surface](i) with (1:6) cement mortar. b) 20 mm. thick plaster.

C) 15 mm thick plaster

(ii) with (1:4) cement mortar(c) 10 mm thick plaster

Neat cement punning about 1.5 mm. thick in wall, dado, window, sills, floor, drain etc. NOTE: Cement 0.152 cu.m. per 100 sq.m.

Artificial stone in floor, dado, staircase etc with cement concrete (1:2:4) with stone chips, laid in panels as directed with topping made with ordinary or white cement (as necessary) and marble dust in proportion (1:2) including smooth finishing and rounding off corners including raking out joints or roughening of concrete surface and application of cement slurry before flooring works using cement @ 1.75 kg/sq.m all complete including all materials and labour. In ground floor. 3 mm. thick topping (High polishing grinding on this item is not permitted with ordinary cement). Using grey cement.In ground floor.3 mm. thick topping (High polishing grinding on this item is not permitted with ordinary cement).Using grey cement.(a) 25 mm. thick

Supplying fitting and fixing door frame with M.S. angle as per drawing & direction of required section.The holes for counter sunk machine screw & nutswill be such as to fit 8 to 10 mm Iron screw. The counter sunk nut to be welded .The nuts are to be welded after careful checking with screw.All welding spotsshould be properly filed or rounded smooth including cost of welding hinges forhinge cleats , lugs for hasp bolt, socket bolt etc. and necessary M.S. clamps of25mm x 6mm flat 225mm long as per direction welded to the frame fitted andfixed in position excluding cost of concrete.

Supplying 1.5mm thick M.S. sheet fitted and fixed on one or both faces of M.S./ W.I. gate etc. with point welding at not more than 150mm apart complete in all respect as per design including cost of all labour and materials.

M.S.or W.I. Ornamental grill of approved design joints continuously welded with M.S W.I. Flats and bars of windows, railing etc fitted and fixed with necessary screws and lugs in ground floor.

Supplying, fitting & fixing UPVC pipes A- Type and fittings conforming to IS:13592- 1992 with all necessary clamps nails, including making holes in walls, floor etc. cutting trenches in any soil through masonry concrete structures etc if necessary and mending good damages including joining with jointing materails (Spun Yarn, Valamoid/Bitumen/M-Seal etc) complete. A) UPVC Pipes:

B) UPVC Fittings:,a) Plain Tee,(i) 75 mm. Dia.

Applying decorative cement based paint of approved quality after preparing the surface including scraping the same thoroughly (plastered or concrete surface) as per manufacturer's specification.. All floors.Two coats (new works only).

Cement washing including cleaning and smoothening surface thoroughly : (a) Two coats (on new works only).(i) Other than yellow, pink.quantity same as item no:38

Priming one coat on steel or other metal surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc.

Painting with best quality synthetic enamel paint of approved make and brand including smoothening surface by sand papering etc. including using of approved putty etc. pn the surface, if necessary :(b) On steel or other metal surface: With Super gloss ( hi-gloss)

Part-B: Lowering & Installation of Pump Motor set : Meter loop connection with 1.1 K.V. Gr. 3½ core / 4 core 10 Sqmm to 50 Sq mm. P.V.C./ XLPE insulated & sheathed and armoured Aluminium/Copper Cable from Meter to incomming TPN Main Switch / Terminal. (Brand: Gloster/Havells/Finolex) ii) 25 Sqmm 3½ Core Copper Cable

Supplying & Fitting E.I. danger board on wall. a) 20 cm × 30 cm (8" x 12")

Earthing with 50 mm. dia GI pipe 3.64 mm thick × 3.04 Mts. long and 1 × 4 SWG GI (Hot Dip) wire (4 Mts. Long), 13 mm dia.× 80 mm. long GI bolts,double nuts, double washers incl. S&F 15 mm. dia GI Pipe protection (1 Mt. long) to be filled with bitumen, partly under the ground level and partly above the ground level, driven to an average depth of 3.65 metre below the ground level as below: (a) By ISI-Medium GI Pipe

Supplying and fixing earth busbar of galvanized (Hot Dip) M.S. Flat 25 mm × 6 mm on wall having clearance of 6 mm. from wall including providing drilled holes on the busbar complete with G.I. bolts, nuts, washers, spacing insulators etc. as required.

Connecting the equipments to earth busbar including supplying and fixing G.I. (Hot Dip) Wire of size as below on wall/floor with staples buried inside wall/ floor as required and making connection to equipments with bolts, nuts, washers, cable lugs etc. as required and mending good all the damages. iii) No. 8 SWG .

Supplying and fixing Sheet steel Main Switches 240 Volt, DP with fuse on L&N, 15/16 Amps on flat iron frame on wall. (Make-Havells)

Supplying and Fixing bulk head light fitting (Havells make) with die cast aluminium housing & frosted glass on wall/ceiling incl. S&F 8 watt/100 Watt Gls. lamp complete set.

Fixing only lamps

Supply & fixing medium gauge GI Pipe (ISI-Medium) Protection with necessary fittings and jointing metarials as required. B) 32 mm .

Distribution wiring in 1.1 KV single core stranded 'FR' PVC insulated & unsheathed copper wire (Brand approved by EIC) in 20 mm size PVC rigid conduit 'FR' (precision Make) incl. necy. fittings as required. ii) 2 x 36/0.3 (2.5 sqmm) + 1 x 22/0.3 (1.5 sqmm) ( Domestic Main Switch Loop connection from TPN Main Switch to domestic Main Switch.)

Distribution wiring in 2x 22/0.3 (1.5 sq mm) single core stranded 'FR' PVC insulated and unsheathed copper wire (Brand approved by EIC) in 20 mm size PVC rigid conduit 'FR' (Precision make) with 1 x 22/0.3 (1.5 sqmm) single core stranded 'FR' PVC insulated & unsheathed Copper Wire for ECC to light/fan/call bell points with Piano Key type switch fixed on M.S. C.R.C.sheet metal (16 SWG) switch board cum JB on wall complete with 2 Nos. suitable size 'Ph & N' copper bar including bakelite/ prespex (wall matching colour) top cover 3 mm thick and incl. 175mm x 100mm x 62.5mm inspection box, making earthing attachment, painting the MS box and mending good the damages to original finish. A) average run 5 mts .

Distribution wiring in 1.1 KV grade 22/0.3 (1.5 sq mm) single core stranded 'FR' PVC insulated and sheathed copper wire (Brand approved by EIC) in 20 mm size PVC rigid conduit 'FR' (Precision make) with 1.1 KV grade 1 x 22/0.3 (1.5 sqmm) single core stranded 'FR' PVC insulated & unsheathed copper wire as ECC, to 5A 3 pin flush type plug socket & Piano Key type switch fixed on M.S. C.R.C.sheet metal (16 SWG) switch board cum J.B on wall including bakelite/perspex (wall matching colour) top cover 3 mm thick and incl. painting the MS box and mending good the damages to original finish. A) On Board

Fixing only Sheet Steel Metal Main Switch (Rewireable type) / Change over on Flat Iron Frame/Angle iron frame on wall. a) 100Amps/63 Amps, 415 Volts TP/TPN Main Switch (Material Deptt. Supply)

Fitting & fixing of Starter (Direct on Line or Star-Delta/Auto-Transformer) with Nuts & Bolts fixed on Angle iron frame on wall and making necessary connection with the electrical cables. Star-Delta / Auto-Transformer Starter (Above 15 HP upto 25 HP)

Fixing Voltmeter/Ammeter/Energy meter with screws & other fixing materials & making holes where necessary including making connections a) 0-50 Amp Ammeter (Material Deptt. Supply)

b) 0-500 Voltmeter (Material Deptt. Supply)

Supplying and fixing batten holder (Anchor) on 75 mm dia. PVC round block/ round bakelite on wall/ ceiling

Supply and fixing sheet metal inspection box (16 SWG) of the following sizes flushed in wall by housing the same after cutting brick wall including making earthing attachment, painting and mending good damages to building works. g) 300 mm x 200 mm x 65 mm

Supply and fixing bakelite/Perspex top cover on existing switch inspection board by brass screws. G) 300 mm x 200 mm x 65 mm

Supplying, fitting & fixing 350 mm x 250 mm x 25 mm size Wooden Plank on wall (for fitting & fixing of electrial equipments as necessary on the plank).

Insulation testing of internal wiring of Pump House/Kiosk Box including wiring of electric Motor & other ancilary equipments by means of Megger .

Supplying, fitting & fixing of 32 Amps / 63 Amps / 100 Amps, 415V rewireable type porcelain body Fuse top & base complete set conforming to IS: 13947/Part-4/Sec-I/1993 over wooden plank/ board on wall and making necessary connection with the electrical cable as per direction of the E.I.C. 100 Amps.

Supplying, fitting and fixing PVC pipes of approved make of Schedule 80 (medium duty) conforming to ASTMD - 1785 and threaded to match with GI Pipes as per IS : 1239 (Part - I). with all necessary accessories, specials viz. socket, bend, tee, union, cross, elbo, nipple, longscrew, reducing socket, reducing tee, short piece etc. fitted with holder bats clamps, including cutting pipes, making threads,fitting, 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. (Payment will be made on the centre line measurements of total pipe line including all specials. No separate payment will be made for accesories, specials. Payment for painting will be made seperately), a) For Exposed Work, PVC Pipes (Dia) 32 mm.

Laying only Cable upto 50 sqmm through existing RCC/Hume/ GI Pipe/ open masonry trench for single 2,3,3.5 & 4 core

Carriage of Departmental materials from the Deparmental tore to the work site and return back the damaged/replaced and unused materials to store including loading & unloading complete at both sides by Tempo/Van Rikshaw/Mini Truck etc. upto 25 Km distance in one way. i) For Delivery pipe, Surge Tank, Bend, Valve etc.

Lowering & Installation of Pump-Motor Set Installation of submersible electro motor pumping set of following capacities 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 M.S. 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 tubewell and testing of motor both in loading as well as in unloaded condition before and after installation of the same. (The rate is inclusive of hiring charges of tools & plants.) (a)100/150/200 cubic metre per hour capacity electro motor pumping set. (ii)Length of pump assembly of any length exceeding 18 metre length.

(A)Transportation of Submersible Electro Motor Pumping set along with all other accessories and equipments including bend, sluice valve column pipes etc. from Sub-Divisional Store to worksite including loading at the lifting point and unloading at the delivery point including necessary head load upto 100 metre at both ends. (A). Carriage by road (a) Distance upto 50 km. (i) 100/150/200 cubic metre per hour (m3/hr) capacity electro motor pumping set with column pipes and accessories etc. (full set)

Charges for jointing water proof cable with required water proof insullation and proper jointing compound including supplying supplying the same and motor related materials complete.

Re-connection of Tubewell assembly to Surge Tank / D.C. through Delivery Pipe Dismantling the existing G.I./M.S. Delivery Pipe line connection between the existing D.C./Surge Tank/Tripod Set & Tube Well assembly viz Sluice valve, Bend, Surge Tank/Distribution Chamber/Tripod Set Connection pipe etc. and disconnection of delivery side viz. Special bend etc. all complete as per direction of the E.I.C. and stacking all

Labour Charges for fitting, fixing and laying, where necessary of following M.S / G.I. / E.R.W. pipes and accessories (to be supplied departmentally) including transportation of the same cutting, threading, jointing and making leak-proof threaded / flanged joint at site, by using socket / rubber insertion, nuts and bolts etc. maintaining proper alignment and level - all complete - as per direction of Engineer-in-Charge. (i) 150 mm. dia. ERW/G.I. pipe (Material Deptt. Supply)

(iii) 150 mm. dia. M.S. screwed boss flange (Material Deptt. Supply)

Fitting and fixing of M.S. / G.I. / C.I.accessories and special in pipe line (accessories & special to be supplied departmentally) including supply of jointing materials viz.rubber insertion, nuts & bolts, havoc Zink (Zink Oxide) complete as per direction of Engineer-in-Charge. (iv) 150mm. dia. C.I. sluice valve

(vii) 150mm. dia.90° M.S. bend with flanged ends

Patch/Doubling works complete with M.S. plate including welding, gas cutting, fitting, fixing complete. (a) Cost of 5 mm M.S. plate including wastage due to cutting, including labour charges for straightening fitting, fixing in position.

(b) Gas cutting to required size upto 8 mm thick M.S. plate, M.S. channel, angle etc. including labour charges, hire charges for all tools and plants.

Welding in M.S. structural work with gas or electric: b) Continuous weld.

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.

Civil Works (Brick Pillar ) Dismantling all types of plain cement concrete works, stacking serviceable materials at site and reremoving rubbish as directed within a lead of 75 m (a) Above 150 mm. thick

Earth work in excavation of foundation trenches or drains, in all sorts of soil (including mixed soil but excluding laterite or sandstone) including removing, spreading or stacking the spoils within a lead of 75 m. as directed. The item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete. (a) Depth of excavation not exceeding 1.500 mm.

Single brick flat soling of picked Jhama bricks including ramming and dressing bed to proper level and filling joints with powdered earth or local sand.

Ordinary Cement concrete (mix 1:2:4) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement, if any, in gound floor as per relevant IS codes. a) Pakur Variety

Earth work in filling in foundation trenches or plinth with good earth, in layers not exceeding 150 mm. including watering and ramming etc. layer by layer complete. (Payment to be made on the basis of measurement of finished quantity of work) a) With earth obtained from excavation of foundation.

Brick work with 1st class bricksin cement mortar (1 : 6) (a) In foundation and plinth

(b) In superstructure

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary (Ground floor).[Excluding cost of chipping over concrete surface] (a) with (1:6) cement mortar. (i) 20 mm. thick plaster.

(ii) 15 mm. thick plaster.

Neat cement punning about 1.5 mm. thick in wall, dado, window sill, floor etc.

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 LS 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.

Part-C: Procurement of materials : M.S ERW Pipe duly ISI certification Marked Both end plain length of pipe should be 6 meter with a tolerance of A 25 mm as per IS 4270/2001 with latest amendment thereof. a)350 mm (NB) & 8 mm ( nominal wall thickness)

b) 200 mm (NB) & 6.4 mm ( nominal wall thickness)

Galvanished M.S Both end Flange as per IS. 1239 length of pipe should be 6 meter with a tolerance of A 25 mm as per IS 1239 (Part-1)/2004 with latest amendment thereof. (For reconnection of delivery line) 150 mm (NB) & 4.8 mm ( nominal wall thickness)

SUB TOTAL WITH OUT TAX FOR PART A+B+C

Add: Carriage @ 3% on Sl. no. 19 to 38 and 70,71,72,73,74, 75,78,79, 81,82,83,84 & 85.

Add GST@18%. On [Sl. no. 1 to 86 + carriage]

Labour welfare cess @1% on [Sl. no. 1 to 39 + carriage + GST]

GROSS AMOUNT INLCUDING GST+ CESS

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