Repair and Cleaning of Sewer line, Soak well, Septic tank and Misc works at AFS STN Mohanbari

Amount

Cleaning of septic tank of any size and depth exc 1.5 M and not exceeding 4.5 M from the GL , by taking out / removing the accumulated sludge/ soil / sewage / any other foreign / foul materials etc (solid / semi solid) sludge and sludge water using mehanical device / diesel pump of suitable type and capacity, removing the sludge out side MOD land and burrying it is pits excavated for the purpose including disposal of the soil and making the system functional and applying bleaching powder for hygenic complete all as specified and directed.

Cleaning of soak well of any size and depth exc 1.5 M and not exceeding 4.5 M from the GL , by taking out / removing the accumulated sludge/ soil /brick bats/ sewage / any other foreign / foul materials etc (solid / semi solid) sludge and sludge water using mehanical device / diesel pump of suitable type and capacity, removing the brick bats out side MOD land and burrying it is pits excavated for the purpose including disposal of the soil and making the system functional complete all as specified and directed.

Cleaning of manholes including taking out accumulated semi liquid, sludge and other deposits such as broken bricks , silt etc from manholes of depth n.exc 1.5 m, cleaning as directed and removing the same to a distance n. exc 50 m and burried under ground (minimum 30 cm below ground level) including necessary excavation of pits in soft loose soil and returnig, filling in including sprinking of bleaching powder at the rate of 0.20 kg / Sqm and dressing of surplus soil around to slope, all complete as required and directed.

Cleaning of blockage of sewer lines 100/150/200 mm bore, manholes in any type of sewer line( i.e. branch sewer line, main sewer line) and by attending the complaints for day to day maintenance in all days in a month except Sundays, Gazetted Holidays and National Holidays, by way of cleaning desludging foreign materials as well as rodding of sewer line between manholes manually /mechnically or pumping out sewage from blocked manhole including desludging where required and ordered by EIC and keeping sewer line functional upto final drop/outlet into septaic tank, soakwell all as specified and directed.

Demoiltion and breaking up 100mm dia drain pipes (saltglazed, stoneware , AC or reinforced concrete drain pipe, jointed in cement mortar and taking out of trenches, if required complete all as specified and directed.

Demoiltion and breaking up 150mm dia drain pipes (saltglazed, stoneware , AC or reinforced concrete drain pipe, jointed in cement mortar and taking out of trenches, if required complete all as specified and directed.

Supply and fixed 110 mm bore PVC (SWR) pipes single socketed ISI marked IS-13592, type 'B' in any length with rubber ring joints fixed to walls complete all as specified.

Material and labour for 100 mm bore Salt - glazed stone ware drain pipes, ('A' grade) laid in trenches at any depth including jointed and tested as specified.

Material and labour for 150 mm bore Salt - glazed stone ware drain pipes, ('A' grade) laid in trenches at any depth including jointed and tested as specified.

Supply and fixed PVC (SWR) gully trap 125/110 mm , setting and jointing with solvent cement complete all as specified.

Supply and fixed PVC (SWR) bends 110 mm bore with access door complete all as specified.

Supply and fixed PVC (SWR) vent cowl 110 mm bore complete all as specified.

Supply and fixed in repairs PVC (SWR) Branch piece, single ( single Y) equal or unequal 110 mm bore with access door complete all as specified.

Supply and fixed in repairs 75 mm nominal bore outlet Cast iron floor trap, with grating including jointing to waste pipe in cement and sand mortar type B1 (1:2:4), fixed in repair complete all as specified.

S&F in repairs 100 mm nominal bore , sand cast, Cast iron soil,waste and vent pipes, in any length with or without ears, with cement joints, laid in trenches or laid in floors complete all as specified.( Excavation and earthwork shall be measured and paid separately).

S&F in repairs 75 mm nominal bore , sand cast, Cast iron soil,waste and vent pipes, in any length with or without ears, with cement joints, laid in trenches or laid in floors complete all as specified.( Excavation and earthwork shall be measured and paid separately).

S&F in repairs 75 mm bore cast Iron bends ( any radius), diminishing pieces or tapers ( larger bore measured).

S&F in repairs 100 mm bore cast Iron bends ( any radius), diminishing pieces or tapers ( larger bore measured).

Supply and fixed in repairs cast Iron Branch piece, single ( equal or unequal) ordinary or inverted (spigot or socket type) or with parallel branches 75 mm bore with oval access door complete all as specified.

Supply and fixed in repairs cast Iron Branch piece, single ( equal or unequal) ordinary or inverted (spigot or socket type) or with parallel branches 100 mm bore with oval access door complete all as specified.

Material and labour for Plain cement Concrete (1:3:6) type C-2 bed to 150 mm bore drain pipes including packing under , and haunching against the sides of pipes after they are laid and tested ;in complete all as specified.

Material and labour for Plain cement Concrete (1:3:6) type C-2 bed to 100 mm bore drain pipes including packing under , and haunching against the sides of pipes after they are laid and tested ;in complete all as specified.

Demolition brickwork or stone boulder masonry, built in cement mortar or cement lime mortar including all quoins,arches, pillars,etc. but excluding ashlar facings, dressed stonework and precast concrete articles including removing of demolished material from work site complete all as specified.

Material and labour for Brickwork with old size bricks,having crushing strength 75Kg/sqcm, locally avaliable, straight or curved on plan excd 6 M mean radius in built in cement and sand mortar 1:4 complete all as specified.

Material and labour for Brickwork with old size bricks,having crushing strength 75Kg/sqcm, locally avaliable, straight or curved on plan excd 6 M mean radius in built in cement and sand mortar 1:6 complete all as specified.

M&L rendering 15 mm thick on fair faces of brick work or concrete surfaces , in cement and sand mortar 1:4 using water proofing compound @ 200 ml per bag of cement or as per manufacturer's instructions (WPC measured and paid separately) complete all as specified ) top surfaces finished even and smooth without using extra cement complete all as specified.

Material and labour for rendering 15 mm thick on fair faces of brick work or concrete surfaces , in cement and sand mortar 1:4 top surfaces finished even and smooth without using extra cement complete all as specified.

Material and labour for preparation of New plastered surfaces and applying two coat of cement base paint of any tint/shade complete all as specified.

Supply only integral water proofing compound ( liquid ) conforming to IS : 2645-2005 complete all as specified.

Excavating in trenches, not exceeding 1.5 m wide and not exceeding 1.5 m in depth; for foundations etc. or for shafts, well cess pits, manholes,pier holes,etc. but not exceeding 10 sqm on plan getting out in soft/loose soil complete all as specified.

M&L plain cement concrete 1:4:8 type D2 using 40 mm graded crushed stone aggregate as in foundations/mass concrete complete all as specified.

Supply and fixing in repairs for 600 mm bore Reinforced concrete drain pipes, Class NP3, laid and jointed with collars complete all as specified.

Returning, filling in, including spreading, levelling, and well ramming in layer not exceeding 25 cm thick in soft/loose soil complete all as specified and directed.

Demolition of cement concrete ( unreinforced ) in ground floors and pavings not exceeding 15 cm thick above or below ground level, including removing of demolished material from work site at any distance outside MD land complete all as specified and directed.

Material and labour for plain cement concrete 1:3:6 type C-2 using 40 mm graded crushed stone aggregate as in foundation , filling, mass concrete works complete all as specified.

Material and labour plain cement concrete type B-1 (1:2:4) using 20 mm graded crushed stone aggregate as in copings, benching, copings, bed plates, surface channel, and like including weathering, slightly rounded or chamfered angles and throating, as directed including necessary form work complete all as specified and directed.

Extra for forming fair finishing drain or channel 45 cm inner girth in cement concrete using extra cement including forms, moulds, mitered /stopped ends etc complete all as specified land directed.

Demolition of Cement concrete ( reinforced) of any description and in any position not otherwise specifically provided for including reinforced cut to facilitate demolition complete including removing demolished material from work site all as specified and directed.

Material and labour for precast reinforced cement concrete 1:2:4 type B-1 as in landings, cover slabs (for manholes etc.) chullah hoods, chajjas, water troughs, mangers, shelves and similar articles with plain faces set un cement mortar 1:6 complete all as specified.

Material and labour for Mild steel deformed or twisted bars ( TMT) 8 mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns , hooking ends and binding with and including mild steel wire ( annealed) not less than 0.90 mm dia. or higher complete all as specified.

Supply and fixed in repairs, vitreous china, (1st quality) WHITE Squatting pan ,'Orissa' pattern size 580 mm x 440mm with integral footrests water closet) with 'P' or 'S' trap front or back inlet complete including lime concrete for bedding, connection to drain pipe and to flushing pipe , anti syphonage pipe etc complete all as specified.

Supply and fixed in repairs, vitreous China, (1st quality), wash down water closet pan ( padestal pattern Water Closet, white), (excluding fixing bolts, flushing cistern and flush pipe) , including connection to drain ( or outgoing pipe) and to flushing pipe, etc., complete all as specified.

Supply and fixed in repairs CP health faucet with complete assessories complete all as specified and directed .

Supply and fixing in repairs Plastic water closet seat with cover, white, closed pattern with flat bottom , and cover and mild steel chromium plated or aluminised hinging device complete all as specified.

Excavating in trenches, in soft/loose soil , not exceeding 1.5 m wide and exceeding 1.5 m and n.exc 3 m in depth for filling of slugde/ foreign material obtained from above items up to 60 cm below GL and filling excavated soil obtained from pit and applying bleaching powder 2 kg/ pit for hygienic complete all as specified and directed.

Cleaning of blockage of blocked from bottle traps, gully trap, nahani traps, P/S trap of WCs, bath, urinals etc. and cleaning of sewage line from nahani trap/ floor trap upto gully trap of first manhole and making the functional with manually/ pressure using pumps complete all as specified and directed.

Supply only high power bleaching powder conforming to IS complete all as specified.

Demolition of cement concrete ( unreinforced ) of any description and in any position not otherwise specifically provided for, including removing of demolished material from work site at any distance outside MD land complete all as specified and directed.

M&L plain cement concrete 1:5:10 type E2 using 40 mm graded crushed stone aggregate as in sub base complete all as specified.

Material and labour for Bitumen blown any grade , applied hot, two coats, to concrete surfaces and sides of sunken floors at the rate of 1.5 Kg Per sq.m per coat complete all as specified.

Supplying, laying, jointing and testing 50 mm nominal bore dia, steel water tubes, 'medium grade' galvanised, with all fittings, fixed in sunken floors by means of cutting holes in wall beded in cement mortar and making good the disturbed portion of wall including taking up or down steel tubing and connections complete all as specified.

Dismantling floor, hearth or wall tiling including cement mortar bedding ( but not backing), in floors, aprons etc .laid dry or laid dry and pointed including removing of demolished material from work site at any distance outside MD land complete all as specified and directed.complete all as specified.

Material and labour for Non Skid ceramic coloured tiles (1st quality) 7 to 8mm thick ( square/ rectangular) area of each tile exceeding 0.06 sqm but not exceeding 0.11 sqm, in floors etc. set and jointed in neat cement slurry and pointed in white or coloured cement to match. over 15 mm thick screeding in CM 1:4 complete all as specified ( screed bed shall not be measured and paid separately).

Material and labour for glazed ceramic coloured tiles of size 300 mm x 200 mm x 7 mm thick on vertical surfaces such as dados , skirting and risers to steps etc. set and jointed in neat cement slurry and pointed in coloured cement to match over 10 mm thick screeding in CM 1:3 complete all as specified. ( screed bed shall also deemed to be included in the quoted rate by the contractor ).

Supply and fixed in repair Low level flushing cistern, dual flush, 9-10 litre capacity, (ISI-Marked embossed), moulded from virgin poly propylene polyethylene including flush pipe of low or high density 32 mm dia complete all as specified and directed.

D N ENTERPRISE

R K CHAKRABORTY AND CO

D B Construction