Renovation and Maintenance of Spout Chamber and Extensionof R.C.C. Pipe Line (WTA System) including Supply and Delivery of Different Materials of Jagadanandapur 11N DTW Scheme at Mouza_Jagadanandapur Block_Nakashipara in the District of Nadia under

PART A: Maintenance of Spout Chamber & R.C.C. Pipe Line (WTA System)

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.

Earth filling in foundation trenches to plinth with good earth in layer not exceeding 150 mm including watering and ramming etc. by layer complete with earth obtained from excavation of foundation.

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

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

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

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 (Ground floor).[Excluding cost of chipping over concrete surface] (i) With 1:6 cement mortar (c) 15 mm thick plaster

Neat cement punning about 1.5mm thick in wall, dado, window sill, floor etc. NOTE:Cement 0.152 cu.m per100 sq.m. PWD Page - 192 , Item - 15

Pipe Line

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 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

Earth work in filling in trenches after laying pipe lines (PVC, RCC, ACP etc.) with good earth obtained from excavation of field trenches in layers not 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 and joining of RC.C. spun pipes with matching collars of different sizes mentioned below in field trenches including handling and carrying the pipes and matching R.C.C. collars from field stack, lowering the same within the trench, property positioning and levelling on bricks laid flat, filling the annular space between collar and the pipe joint with Jute braiding dipped in cement slurry, grouting with cement and sand mortar (1:2) mixed with approved quality water proofing compound (5% by weight of cement) including cost of cements, bricks for levelling, jute braiding etc.) and curing all complete as per direction of Engineer-in-Charge. (iii) 1830mm. long 225mm. dia.

Jointing the undermentioned R.C.C. pipe fittings (pipeline specials) in the R.C.C. pipe line with matching RC.C. collars including handling and carrying the fittings and matching R.C.C. collars from field stack, lowering in the trenches, properly levelling and positioning on bricks laid flat, filling the annular space between pipe fitting and collars with Jute braiding dipped in cement slurry, grouting with cement and sand mortar (1:2) mixed with approved water proofing compound (5% by weight of cement) and curing etc. complete as per direction of the Engineer-in-Charge (Cost of bricks for levelling and Jute braiding are included).(iii) 225 mm x 225 mm x 225 mm. R.C.C. Tee

Jointing the undermentioned R.C.C. pipe fittings (pipeline specials) in the R.C.C. pipe line with matching RC.C. collars including handling and carrying the fittings and matching R.C.C. collars from field stack, lowering in the trenches, properly levelling and positioning on bricks laid flat, filling the annular space between pipe fitting and collars with Jute braiding dipped in cement slurry, grouting with cement and sand mortar (1:2) mixed with approved water proofing compound (5% by weight of cement) and curing etc. complete as per direction of the Engineer-in-Charge (Cost of bricks for levelling and Jute braiding are included).(iv) 225 mm x 225 mm x 150 mm. R.C.C. Tee

Jointing the end of 150 mm. dia. M.S. extension pipe for spout chamber with 150mm. end of R.C.C. Tee including carrying the M.S. extension pipe from store to site, levelling and positioning the end of extension pipe concentrically with 150mm. end of R.C.C. Tee on bricks laid flat within the field trench and jamming the joints with cement concrete (1:2:4) with stone chips 10 mm. down mixed with approved water proofing compound 5% by weight of cement) of adequate thickness to provide a leak proof joint as per direction of Enginer-in-Charge (Cost of bricks for levelling is included).

Jointing plain end of 300 mm /200 mm /150 mm. Dia. M.S. special bend from surge tanks / shore manifold with underground R.C.C. pipe lines of 450mm. / 300mm. / 225 mm. dia. by jamming with cement concrete (1:2:4) with 10 mm. down stone chips mixed with approved water proofing compound (5% by weight of cement) of adequate thickness to provide a leak proof joint including carrying the special bend from departmental store to site, curing etc. as per direction of Engineer-in-Charge.

Installation / Erection of SurgeTank / Shore manifold (to be supplied from Deptt. free of cost) over a rigid base of ordinary cement concrete (1:2:4) with graded stone chips (20mm. nominal size) of pakur varity of 1250 mm X 1250 mm X 150 mm. over a single layer of brick flat soling and embedding the legs of the surge tank/shore manifold within the concrete base including cost of all materials and labour and as per direction of Engineer-in-Charge.

Plugging the open end of 450mm. / 300 mm. / 225 mm. / 150 mm. dia. RC.C. pipe line with cement concrete (1:2:4) with stone chips 20 mm. down mixed with water proofing compound(5% by weight of Cement) of approved quality including curing etc. complete as per direction of Engineer-in-Charge. (iii) 225mm. dia. R.C.C. 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. (i) 150 mm dia ERW 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. (ii) 150mm. dia. C.I.sluice valve

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. (iii) 150mm. dia. C.I. NTP/ Alfa-Alfa valve.

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) 300 mm /200 mm / 150mm. dia. M.S. special bend.

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.

Taking out the damaged R.C.C. Pipe and two collars by dismantling two joints carefully, carrying and stacking the same near the pump house, carrying new pipe and collars from the field stack, lowering the same within the trench, properly positioning and levelling on bricks laid flat, between collar and the pipe joints with jute braiding dipped in cement slurry, grouting with cement and sand mortar (1:2) mixed with approved quality water proofing compound (5% by weight of cement) and curing all complete as per direction of Engineer-inCharge. (c) 225 mm dia. RC.C. Pipe.

Taking out the condemmed 150 mm dia. N.T.P. / T.P. / Alfa-Alfa valve from 150 mm dia. M.S./G.I. pipe of existing spout chamber by careful chiseling with least disburbance to the existing system of structure upto required limit and fitting, fixing of new one with 150 mm dia. M.S./G.I. pipe in proper position of the spout chamber using havoc zinc jute so as to make the joint leak proof including mending good all damages and returning back the condemned materials at store as per direction of Engineer-in-Charge.

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.

Patch/Doubling works complete with M.S. plate including welding, gas cutting, fitting, fixing complete.(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.

Patch/Doubling works complete with M.S. plate including welding, gas cutting, fitting, fixing complete.(c) Electric welding charges upto 8 mm M.S. plate, M.S. channel etc. and other member of the barge including hiring charges of all tools and plants.

b) 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.I.C. (This item includes cost of earth cutting & back filling of trenches and required materials for cleaning but excluding the cost for taking out 1 full length of RCC Pipe by dismantling of 2 nos. of Collars & refitting the RCC pipe with new two nos. collar). iii) For 225 mm dia. RCC Pipe

Extra rate should be allowed over the schedule rates @3 % for construction of pump house of DTW considering the tube wells are generally installed in cultivable field located at remote places, away from town, it involves extra carriage by cart/boat/head load besides initial transport of construction materials by truck

Add GST @ 18%

Add Labour Welfare Cess @ 1%

PART-B : Supply & Delivery of Different Materials

Supply of 150 mm nominal size (PD) ISI marked sluice valve pressure designation PN 1.6 with hand wheel for water works purpose, CI flange type conforming to IS:14846/2000 with amendments nos. 1 & 2 components/parts of sluice valves shall be manufactured from basic materials given in table 1 of IS:14846/2000 with amendments 1 & 2. The valves should be tested for (closed end test) against Hydrostatic test requirement.

Supply of 150 mm dia (N.B.) made of Cast Iron as per IS 210/2009 with latest ammendment Alfa Alfa Valve (nipple type), type - C as per drawing (Annexure - G) and technical specification with hand wheel, one wheel for four Nos. Valve.

Supply of M.S. Hexagonal Head Nuts & Bolts conforming to IS:1363(Part-I)/1992 of Product grade C with latest ammendment for bolts & IS:1363(Part-III)/1992 of Product grade C with latest ammendment for nuts, properties/Class for bolts 4.6 & for nuts 4.5. Both bolts & nuts are to be duly ISI certification marked nominal size-M 10 to M 24 of corresponding ISI specification of different sizes. size - 20 mm dia X 65/80 mm long nuts & bolts having standard thread [TATA/GKW or approved make]

Supply of 150 mm dia Rubber Insertion 5 mm thick with proper reinforcement 2 ply conforming to IS 638/79 with latest amendments duly ISI marked suitable for MS flange as per IS 6392/71 with standard drilled holes.(For Sluice Valve)

Supply of NP-2 class bore dia. 225 mm R.C.C spun Pipe of length 1.83 m, thickness 25 mm with matching collar as per IS:458/1988 with latest amendments thereof including all taxes and transportation cost. (a) Cost of one No. NP-2 class 225 mm bore dia. R.C.C. pipe of length 1.83 metre, thickness 25 mm, 225 mm dia. bore dia. (Ex - factory price) (b) Cost of one No. NP-2 class 225 mm bore dia. R.C.C. collar of length 0.15 metre, thickness 25 mm (Ex - factory price)

Supply of NP-2 class 225 mm bore dia. R.C.C. collar of length 0.15 metre, thickness 25 mm as per IS:458/1988 with latest amendment thereof including all taxes and transportation cost.

Supply of NP-2 class 225 mm X 225 mm X 225 mm bore dia. R.C.C. Tee of length 0.90 metre for 225 mm bore dia. Sides (each side), 0.20 metre for 225 mm bore dia. Side, thickness 25 mm as per IS:458/1988 with latest Amendment thereof including all taxes and transportation cost.

Supply of NP-2 class 225 mm X 225 mm X 150 mm bore dia. R.C.C. Tee of length 0.90 metre for 225 mm bore dia. Sides (each side), 0.20 metre for 150 mm bore dia. Sides, thickness 25 mm as per IS:458/1988 with latest Amendment thereof including all taxes and transportation cost.

MS Surge Tank as per Drawing (Annexure-H) , the body of which made of 3 mm thick MS sheet and Top and Bottom cover are made of 5 mm thick MS sheet welded with the body and strenghthened with ribs etc. All joints must be electrically welded to a leak-proof condition and joints must be capable of withstanding pressure of 50 psi .The Surge Tank should be fitted with all accessories specified in the drawing. Entire Surge Tank is to be painted both inside over a coat of priming.

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