Re drilling Installation and Development of 01 no HDTW of 350mmX200mm NB in place of Defunct 01 no DTW at 131T Uttar Durlavpur DTW at Mouza Uttar Durlavpur GP Adhata JL No 13Block Amdanga under Barasat AI Division under Core SectorProgram FY 25 26

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

(v) beyond 120 metres and upto 150 metres

(vi) beyond 150 metres and upto 175 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 (355.6 x 219) mm. M.S. OD Reducer of approved quality

(ii) Centre guide (6 mm thick, 50 mm wide and 125 mm rise of arch) of approved size and quality.

(iii) M.S.Top cap of suitable size (8 mm thick) and approved quality for covering top of housing pipe of 355.6 mm OD (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 355.6 mm OD Pipe.

(v) 75 mm width × 10 mm thick Sockets / Rngs made form MS Flats by rolling process and double butt welding for jointing 219 mm OD Pipe.

Supply of approved quality PEA shaped gravel of 2 mm to 4 mm. size and gravel treatment of tubewell including screening washing, cleaning etc. of the gravels at the site complete as per direction of Engineer-in-Charge. i) For sites within 180 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.

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.

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.

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)

Lowering & Installation of Pump-Motor Set Withdrawal of electro motor submersible pumping set of following capacities from within the tubewell housing pipe of the following length by using all necessary requisites tools and plants and carefully as per direction of Engineer-in-Charge and stacking the same properly at site within the tubewell premises complete. 100/150/200 cubic metre per hour capacity electro motor pumping set. Length of pump assembly of any length exceeding 18 metre length.

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)

Jointing water proof cable with the leads of the motor including soldering with requisite water proof insulation and proper jointing compound/Vulcanized rubber tape so that proper water proof insulation is assured.

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

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

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. (i) Grill weighing above 10 Kg./sq.mtr and up to 16 Kg./sq. mtr.

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 of 5 mm thick M.S. plate, N.S.C. channel 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 6 mm thick of size 40 cm x 40 cm over housing pipe to rest the clamp with semi circular holes at centre 16 mm dia including fitting fixing of G.I. pipe, elbow, nipple of 40 mm dia for insertion of submersible cable including cost of nuts & bolts, 1 Mtr G.I. pipe of dia 25 mm, elbow, nipple etc. all complete.

Supplying, fitting and fixing PVC pipes of approved make of Schedule 80 (mediumduty) conforming to ASTMD-1785 and threade dto match withGI Pipes as per IS : 1239 (Part-I). with all necessary accessories, specials viz. socket, bend, tee, union, cross, elbow, nipple, long screw, reducing socket, reducing tee, short piece etc. fittedwith holder bats clamps, including cutting pipes, making threads,fitting, fixing etc. complete in all respect including cost of all necessary fittings as required,jointingmaterialsandtwocoatsofpaintingwithapprovedpaint in any position above ground. (Payment wil lbe made on the centre line measurements of total pipe line including all specials. No separate payment will be madefor accesories, specials.Payment forpaintingwill be made seperately) (a) For Exposed Work 32 mm dia pipe

Civil Works (Brick Pillar ) 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

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. (ii) 15 mm. thick plaster.

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

Painting with ready mixed Black Japan of approved make and brand including smoothening surface (ii) Two coats.

Procurement of materials : Supply & delivery of M.S.E.R.W. 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) & 8.00 mm (nominal wall thickness) weight 68.57 Kg/Mtr

(b) 200 mm (NB) & 6.40 mm (nominal wall thickness) weight 33.10 Kg/Mtr

Supply of 150mm.dia (4.8mm) Galvanised MS Flanged pipe :- (For reconnection of delivery line)

Supply of 150 mm (N.B) M.S. ERW Column Pipe one end screwed & other end welded with non-standard flange (3 mtr long). Thickness of M.S. Pipe 4.8 mm. Pipe should be as per IS: 1239 (Part-I) /2004 with latest amendments. Flange Should be 150 mm (N.B.) Non-standard M.S.Plate flange made from 12 mm thick M S. plate. BOTTOM

Supply of 150 mm (N.B) M.S. ERW Column Pipe both end welded with non-standard flange. (3 mtr long). Thickness of M.S. Pipe 4.8 mm. Pipe should be as per IS: 1239 (Part-I) /2004 with latest amendments. Flange Should be 150 mm (N.B.) Non-standard M.S.Plate flange made from 12 mm thick M S. plate. Both M.S. ERW Pipes & Flanges should should be duly ISI certification marked. MIDDLE

Supply of 150 mm (N.B) M.S. ERW Column Pipe one end welded with non-standard flange & other end welded with standard flange. (3 mtr long). Thickness of M.S. Pipe 4.8 mm. Pipe should be as per IS: 1239 (Part-I) /2004 with latest amendments. Flange Should be 150 mm (N.B.) Non-standard M.S.Plate flange made from 12 mm thick M S. plate. Standard Flange should be 150 mm (NB) MS Plate Flange duly ISI marked as per IS-6392/1971. Both M.S. ERW Pipes & Flanges should should be duly ISI certification marked. TOP

Submersible Motor Pump Set having capacity of 115 to 150-115m³/hr. discharge at 28 to 17 meter total head, Along with flat submersible electric cable 2 x 3 x 6 sq mm of 3 meter. Bowl with strainer and non-return valve. Motor should be designed for operating at 415 volt +6% & -15%, 3 phase, 50HZ,±3% A.C. supply, wet type, water filled, totally enclosed squirrel cage Induction Motor , 20 HP water cooled, water lubricated. Motor as per IS : 9283/1995 with latest amendments there of and Pump as per IS :8034/2002, with latest amendments there of NRV - 6".

3C Flat water proof CU.cables lSI marked-IS 694 :- 3C X 6.0 Sq.mm

90 degree G.I Bend (both end flanged )-IS Imarked-IS 1239, Galv- IS4736 150 mm dia

Supply of MS Hexagonal Head Bolts & Nuts bearing IS-1363 (Part-I)/ 1992 of product Grade-C with latest amendments for bolts & IS- 1363 (Part-3) / 1992 of Product Grade-C with latest amendments for Nuts properties / Class for Bolt-4.6 & Nuts-4.5. (Inspection at departmental store only). (size 5/8" x 2" x 21/2" or as reqd. in site)

GI. Holding Clamp- IS 1239, Galv- IS4736 :- (i)150 mm dia

SUB TOTAL WITH OUT TAX

Add: Carriage @ 3% on Sl. no. 20 to 41 excluding 22, 24, 34 & 37.

Add GST@18%. On [Sl. no. 1 to 41+ carriage]

Labour welfare cess @1% on [Sl. no. 1 to 41 + carriage + GST]

GROSS AMOUNT INLCUDING GST+ CESS

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