Maintenance of water transmision arrangement and repairing of field chanel spout chamber extension of pipe line and pipe line leakages at 188T Salua DTW centre in Baduria Block under Barasat AI Division during the year 2025 2026

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 all types of plain cement concrete works, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m. (a) In ground floor including roof. (a) upto 150 mm. thick

Dismantling artificial stone flooring upto 50 mm. thick by carefully chiselling without damaging the base and removing rubbish as directed within a lead of 75 m. (a) In ground floor including roof.

Stripping off worn out plaster and raking out joints of walls, celings etc. upto any height and in any floor including removing rubbish within a lead of 75m as directed. (L.S.)

Brick work with 1st class bricks in cement mortar (1:6) (b) In Foundation and Plinth,

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

Single Brick Flat Soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints with local sand.

Ordinary Cement concrete (mix 1:2:4) 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 .

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 (G. F.).[Excluding cost of chipping over concrete surface] (i) With 1:6 cement mortar, (b) 15 mm th plaster

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 @ 1.75kg/sq.m all complete including all materials and labour In ground floor.3 mm. thick topping (High polishing grinding on this item isnot permitted with ordinary cement).Using grey cement (ii) 25 mm. thick

Neat cement punning about 1.5mm thick in wall, dado, window sill, floor etc. NOTE:Cement 0.152 cu.m per100 sq.m.

Earth work in excavation of field trenches as per design section and alignment for laying of pipe lines (PVC, RCC, ACP etc.) upto a depth of 1500 mm all 1 sorts of soils including removing, spreading or stacking extra earth as directed. The item includes necessary trimming of sides trenches, levelling, dressing and ramming the bottom as required complete.

Repairing of leakages in collar joints of R.C.C. Pipe line by opening the joints fully by chipping out the old morter, cleaning the pipe recesses and collar properly, and thereafter positioning and levelling the pipes and collar, filling the annual spaces of joints with jute braiding dipped in cement slurry and grouting with (1:2) cement morter mixed with approved quality water proofing compound (5% by wt. of cement) and curing all complete as per direction of Engineer-in-Charge. (c) 225 mm dia. R.C.C. Pipe.

Earth work in filling in trenches after laying pipe lines (PVC, RCC, ACP etc.) with good earth obtained from excavation of field renches in layers not 2 exceeding 225 mm, including watering and ramming etc. layer by layer complete. (Payment will be made on the basis of measurement of finished .quantity of work.)

Laying of P.V.C. pipes of different diameters within field trenches in curve / straight line using P.V.C. fittings, viz. Bend, Tee, Reducer etc. and making leak proof joints with couplers after roughening the surface with wire brush and emery paper and applying solvent cement (The rate is inclusive of transport of pipes, fittings and solvent cement to be supplied by Deptt.) all complete as per direction of Engineer-in-Charge. 140 mm dia.

Testing of pipe line system against leakage by filling the distribution chamber with water and supplying water through the entirepipe line net work for at least 4 (four) hour including hiring and transport of suitable generator, pump, tools and plants, fuel and lubricants, installation of the pump, connecting the same with pipe line net work, making necessary electrical connection and dismantling all these after completion of test - all complete as per direction. i) For HDTW

Removing of Chokage due to sludge, mud, sand or any other forign materials deposition from the underground 450 / 300 /225/ 150 mm dia. R.C.C. Pipe Line with split bamboo, wire brush, coir rope etc. along with suitable cleaning agent as necessary as per direction of E.!.C. (This item includes cost of earth cutting & back filling of trenches and equired materials for cleaning but excluding the cost for taking out 1 full length of RCC Pipe by dismantling of 2 nos. of Collars & refitting (iii) 225 mm RCC Pipe

Supply of 140 mm.dia PVC pipe class-I ( with loose matching coupler) marking IS :4985/1988 with latest ammendments with free solvent cement

Supply of 140 mm dia 900 bend ( IS : 10124/88 Part-6 with latest ammendment)

Supply of 140 mm dia 600 bend ( IS : 10124/88 Part-6 with latest ammendment)

Supply of 160 X 140 mm dia PVC reducer (Class-II) with free solvent cement

Supply of 140 X 140 x 140 mm dia PVC Equal Tee with free solvent cement

Supply of Extra Coupler for 140 mm dia PVC Pipe (extra) ( IS : 10124/88 Part-6 with latest ammendment) with free solvent cement

SUB TOTAL WITH OUT TAX FOR PART A+B

Add extra carriage by cart/boat/head load for Water transmission arrangement of DTW @3% extra over the scheduled rates on sl.no. 5 to 11.

Add GST@18%. On Sl. no. 01 to 17 including carriage.

Labour welfare cess @1% On Sl. no. 01 to 17 including carriage + GST

GROSS AMOUNT INLCUDING GST+ CESS

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