Name of Work:- Construction of 100 People capacities Public Septic tank at Ward No. 7 Topkhana under Kalimpong-I Development Block
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Item Description
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Construction of Septic tank of different capacities as per approved drawing with 1st class brick work in cement mortar (4:1) including two 560 mm dia. R.C.C. manhloe cover of approved make supplied, fitted and fixied in the top slab with necessary fittings, 19 mm thick cement plaster(4:1) with neat cement finish to the internal surfaces and 12 mm thick plaster(4:1) to outside wall upto 200 mm below G.L. floor finished with 25 mm thick grey artificial stone including supplying, fitting and fixing all necessary specials, fittings, S.W. tees, C.I. foot rest etc. including excavating earth in all sorts of soil, shoring, bailing and pumping out water as necessary, ramming, dressing the bed and refilling the sides of the tank with earth, removing spoils, fliing up the chamber with clear water, removing foreign materialsfrom the chamber and including constructing attached inspection pit as per approved dawing and connecting all necessary pipes, joints etc. with internal plaster work and artif
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Constructing Inspection pit to a depth of 1.5 metre (inside), 250 mm thick 1st class brick work (1:4) in all sides over a layer of jhama brick soiling and 150 mm thick cement concrete with stone chips (1:3:6) including necessary earth work, fitting and fixing approved type S.W. master trap, constructing masonry invert with cement concrete (1:1.5:3) with stone chips, plastering inside and outside( outside upto 300 mm below G.L.) with 20 mm thick cement plastering (1:4) and neat cement punning, including, supplying, fitting and fixing one 560 mm dia. R.C.C. manhole cover of approved make with R.C.C slab of 100 mm thick with cement concrete (1:1.5:3) with stone chips including necessary rreinforcement(upto 1%) and shuttering and necessary corbelling brick work(1:4) so that the R.C.C. cover slab rests 150 mm above adjucent G.L., cement plaster(1:4) 10 mm thick on all external surfaces of the top slab as directed complete in all respect and remeval of surplus earth with all costs of labour . .
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Construction of circular soak well 2.5 metre deep in all types of sandy soils with dry brick work upto 1.6 metre from the bottom having 150 mm intermediate cement brick work(6:1) band all round and cement brick work(6:1) upto 0.90 metre from top with 19 mm thick cement plastering(4:1) to inside face upto the depth of cement brick work, 12 mm thick cement plaster(4:1) on top of the R.C.C. cover slab including filling bottom 1.00 metre of inside of the well with brick metal(50 mm to 63 mm size) including R.C.C. cover slab of designed thickness with cement concrete(4:2:1) with stone chips with necessary reinforcement and shuttering including one 560 mm dia. R.C.C. manhole cover of approved make supplied, fitted and fixed in the cover slab with necessary fittings, making necessary arrangements for pipe conections, excavation of well including shoring, dewatering and remeving the excess earth from the premisis as per direction complete in all respect with all costs of labour and materials.W
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Supplying, fitting & fixing Cast iron soil pipe only conforming to I.S.3989/1970 and I.S.1729/1964 with bobbins, nails etc. including making holes in the wall, floor etc. and cutting trenches etc. in any floor through masonry conctrete, if necessary, and mending good damges with necessary jointing materials and painting two coats to the exposed surface with approved paint complete. (Measurement will be made along the enter line of the total pipe line in fitted condition including specials, payment for specials & painting will however be paid seperately).
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