e NIT 04/DD/SWID/2025-26

Casing pipes ISI marked-IS 12818 150MM N.B. dia 7.5 MM - Medium ( Rate included 18% GST)

Casing pipes ISI marked-IS 12818 150mm dia 7.5 mm thick Screen Ribbed (Medium) ( Rate included 18% GST)

Drilling of borehole by direct rotary rig through any kind of soil or rock down to required depth by using not more than 215mm dia. drill bit including arrangement of water for the bore hole all complete.i) 0 mtr to 30 mtr

i)30 mtr to 60 mtr

i) 60 mtr to 90 mtr

i) 90 mtr to 120 mtr

Add extra for reaming the borehole by rotary drilling method by using 300mm to 400 mm dia. Drill bit down to the required depth through any kind of soil from0-400 m

Labour charges for fitting , fixing & jointing thread to thread with solvent cement the PVC pipes(Housing pipe, Blank pipe, Strainers & Bottom plug, etc.) and lowering the same carefully into the bore hole down to the required depth complete in all respect as per direction of E.I.C.i) 150mm DN dia blank pipe,Bottom plug &Screen/Slotted Pipe

Supplying, fitting and fixing including supplying of suitable jointing compound for fixing in position,threading if necessary etc all complete i) 150mm dia. G.I threaded top cap fixed in position

ii) 150mm dia. Nipple 300mm long

iv)150mm. Dia PVC Socket

Supplying, fitting, fixing the following fittings of PVC-U conforming to IS:13818 (iii) 150 mm DN PVC-U end cap

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 Each Engineer-in-Charge (Cost is inclusive of all charges for equipments, labour, data aquisition & compilation of data sheets as per direction of the Engineer-incharge

Conducting geophysical survey for ground water potentiality and to evaluate the layer parameters in terms of depth by surface registivity technique adopting Vertical Electrical Sounding (VES) method for locating pin pointed location of tube well including charges for instruments & transportation thereof and services all complete at site and submision of data collected from each site for analysis (For each site at least 3 nos. location are to be surveyed) a) for depth upto 150 metres from G.L

Supply of gravel for use as pack in tube well of 2 mm to 4 mm. size (as per IS:97) 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 site at any district of West Bengal upto 120 km distance from quarry

Washing and development by pumping with 30 cum per hour capacity pump for a period till sand free water comes out and the discharge is about 30 cum per hour, followed by final yield test; inclusive of all tools, plants and scaffolding and hire charge of submersible pump, generator etc. 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 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

Supply of UPVC pipes marked-IS 4985 ( Rate included 18% GST) (i)160mm OD Class-II

(ii) 110 mm OD Class-II

UPVC Fittings ISI marked -IS 10124 ( Rate included 18% GST) a} 160 mm coupler

b) 110 mm couplar

c) 110 mm dia 90 degree bend

d) 110mm TEE

h)110 mm End Cap

Supplying,Fittings & Fixing of PVC HD-Reducing Tee as per IS 7834(High Density) HD Reducing Tee 160 X 110X 160 mm

Supplying,Fittings & Fixing of PVC HD-Elbow(Equal) as per IS 7834 a) HD-Elbow (Equal) 160 mm 90°

Supplying,Fittings & Fixing of PVC HD-End Cap (Plain)as per IS 7834(High Density)HD End Cap(Plain) 160mm

Supplying,Fittings & Fixing of PVC HD-Tee (Equal)as per IS 7834(High Density) HD tee (Equal) 160mm

Supply of UPVC pipes(B-Type) & fittings conforming to IS 13592-1992. b) Vent Cowl 160mm

Labour charges for fitting and fixing high density polythene pipes or PVC pipes for above ground work including cost of jointing meterials, paints etc. fitting & fixing all necessary specials, cutting pipes, making threads, cutting holes in wall or R.C. floor where necessary and mending good all damages excluding the cost of masonry or concrete work, if necessary, but including the cost and fitting and fixing holder bat clamp ( any floor) or for underground works including cutting trenches up to 1.5 metre and filling the same complete as per direction of EIC. ( payment will be made on centre line measurment of the total pipe line including specials ) i) 110 mm OD (Above the Ground)

ii) 160mm OD (Above the Ground)

ii) 160mm OD (Under the Ground)

C.I.sluice valve with with hand wheel,ISI marked IS; 14846 a) 150mm dia (Rate including 18% GST)

(a) M.S. structural works in colum, beams etc. with simple rolled structural members (e.g joists, angel, channel sections conforming to IS:226,IS808& SP(6)-1964 connected to one another with brackets, gussets, cleat5s as per design, direction of Engineer-in-Charge complete including cutting to requisite shape and length, febrication with necessary bolting, metal arc welding conforming to IS 1995 using electrodes of approved make and brand conforming to IS 814-1957, haulage, hoisting and erection all complete. The rate includes the cost of rolled steel section, consumables such bas electrodes, gas and hire charge of all tools and plants labour required for the work including all incidential charges such as electricity charges, labour insurance charges etc. ( Payment to be made on the basis of calculated weight of structural members only in finished work as per IS specified weight.)

Renewing C. I. clamp for pipe including cutting hole in wall etc. and mending good all damages with cement concrete(4:2:1) with jhama chips and cement plaster(6:1) to match with and curing. 100mm

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.

(b) Depth of excavation for additional depth beyond 1,500 mm. and upto 3,000 mm. but not requiring shoring.

(c) Depth of excavation for additional depth beyond 3000 mm. upto 4000mm. excluding cost of shoring as necessary.

Hire and labour charges for shoring works (including necessary close plank walling, framing, salbulla pilling, structuring etc.) complete as per direction of the Engineer -in -charge for foundation excavation (vertical surface are in contact with supported earth is to be measured.)( This item should be excuted on specific direction of the Engineer-in-charge) a) Depth upto 1.5m

b) For additional depth beyond 1.5m and upto 3.00m

c) For addition depth beyond 3.00m

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. 1/3 of excaveted earth work =41.78 Cum

Sand filling in foundation or plinth by silver sand in layers not exceeding 15 cm as directed and consolidating the same by through saturation with water and ramming complete, including the cost of supply of sand.

Single brick flat soling of picked jhama bricks including ramming & dressing beds to proper level and filling joints with local sand.

Brick work with 1st class bricks in cement mortar (1:4) (b) In foundation and Plinth

(i) Cement concrete with graded Jhama khoa (30 mm. size) excluding shuttering. In ground floor and foundation. (a) 1:3:6 proportion. .

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 code. a) Pakur

Hire and labour charges for shuttering with centreing 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, columns, lintels curved or straight including fitting, fixing and striking out after completion of works. (upto roof of ground floor)(When the height of a particular floor is more than 4 m. the equivalent floor ht. shall be taken as 4 m. and extra for works beyond the initial 4 m. ht. shall be allowed under 12(e) for every 4 m. or part thereof.)Extra for works beond the roof of ground floor per additional floor. (i) Upto and inclusive 4 th. (per floor) and in basement.(2nd.F)(b) Above 30mm. & upto / 37 mm. thick wooden shuttering as per decision & direction of the Engineer-in-charge.

Reinforcement for reinforced concrete work in all sorts of structures including distribution bars, stirrups,binders etc. including supply of rods, 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 inter-section, complete as per drawing and direction.(a) For works in foundation, basement and upto roof of ground floor / upto 4m. (i) Tor steel/Mild steel I. 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 or rougening of concrete surface, including throating, nosing and drip course where necessary (ground floor) (excluding cost of chipping over concrete surface) (ii) With 1:4 cement mortar (c) 15 mm. thick plaster.

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

Supply of coarse sand (0.6 mm to 2 mm ) including cleaning, screening etc. at site and placing in layers in the recharge pit as per direction of EIC.

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 at any district of West Bengal upto 120Km distance from quarry

Conducting recharge test by filling the de-siltation chamber with water from nearby source by pumping device and impounding the recharge pit with water for recharge through recharge shaft to test the effectiveness of the scheme.(Continuos pumping for eight hours)

M.S or W.I ornamental grill of approved design joints continuously welded with M.S/ W.I flats and bars for windows, railings,etc. fitting,and fixed with necessary screws and lugs in ground floor.a) Grill weighing above 10 kg per sq.m up to 16Kg per sqm.

b) For extra work in grill gate (15% extra over the above item.i) For hanging and locking arrangement including supply of materials and labour complete.

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 than150mm apart complete in all respect as per design including cost ofall labour and materials

Charges for painting with best quality synthetic enamel paint of approved make and brand including smoothening of surface by sand papering etc. including use of approved putty on the surface if necessary on steel surface or metal surface With other than hi-gloss Two coat except white shed on plastered surface

Clearing compound premises of shurb, plants, jungles etc. by cutting and removing as directed. (Specific permission of E.I.C. prior to the execution will be necessary). Payment to be made on area cleared.

Cleaning thoroughly the dust, dirts and other foreign matters from the surface of the roof by unskilled labour and disposing the same as per direction of E.I.C.

Add Labour welfare cess @ 1% of Total amount.

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