REPAIRS AND CLEANING TO SEWAGE LINE, MANHOLES, SOAKAGE WELL AND SEPTIC TANK AT WEST RAYANG MIL STN UNDER GE 872 EWS

Amount

Demolition of reinforced cement concrete in any position not otherwise specifically provided for and removing rubbish complete all as specified and directed.

Demolition of brick work or stone / boulder masonry/ concrete block masonry, built in cement mortar including all quoins, pillars etc stacking the serviceable bricks after removing mortar and cleaning for re-use and disposal of debris and rubbish complete all as directed by the Engr-in-Charge.

Taking up or down eaves gutters and rainwater/soil/waste pipes (any size or pattern), including all fittings, heads, shoes, bends, swan-necks, etc., including removal to Store (measured overall as fixed along the centre line over fittings and accessories) complete all as specified and directed

Dismantling upto 200mm bore, cast iron or reinforced concrete drain pipes jointed in cement mortar and taking out of trenches if required and as directed.

Dismantling upto 250mm bore, cast iron or reinforced concrete drain pipes jointed in cement mortar and taking out of trenches if required and as directed.

Dismantling upto 300mm bore, cast iron or reinforced concrete drain pipes jointed in cement mortar and taking out of trenches if required and as directed.

Excavation in trenches, not exceeding 1.5 M wide and not exceeding 1.5 M depth for foundation, trenches for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10sq m on plan and n exc 1.5m in depth and getting out in soft/loose soil complete all as specified and directed.

Excavating in trenches not exc. 1.5 metre wide and exc. 1.5 metre & not exc. 3 metre depth (beyond the first 1.5 metre) for foundation of poles etc and getting out in soft/loose soil complete all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm as in soft/loose soil complete all as specified and directed.

Removing excavated material not exc. 50 m and depositing where directed at a level not exc 1.5 m above the starting point complete all as specified and directed.

M & L for Precast cement concrete 1:2:4, type B-1 (using 20mm graded stone aggregate) as in landing, cover slabs, shelves and similar articles with plain faces and set in CM 1:6 complete all as specified and directed. (Note: Reinforcement shall be measured and paid seperately)

M & L for Pre-cast cement concrete 1:3:6, type C-1 (using 20mm graded stone aggregate), block masonry with solid blocks of size 300x200x200mm or 300x200x100mm, having compressive strength of not less than 100 Kg/Sq Cm (As per IS-2185) exc. 10 cm in width and setting in mortar 1:6 complete all as specified and directed.

S & F high strength TMT steel bars 10 mm dia., and over cut to length, bend 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 0.9 mm dia or securing with clips quality complete all as specified and directed.

S & F high strength TMT steel bars 6mm to 8mm dia., and over cut to length, bend 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 0.9 mm dia or securing with clips quality as in half brick thick wall complete all as specified and directed.

Taking down cement plaster on brick or stone walls etc including racking out joints, hacking for key, scrubbing down with water and removing rubbish complete all as specified and directed

M & L for rendering 15 mm thick on fair faces of brick work or concrete surfaces in cement mortar 1:6 and finished the surfaces even and fair without using extra cement complete all as specified and directed.

S & F in repairs, cast iron floor trap 75 mm dia with grating including jointing to waste pipe fixed in cement mortar 1:2:4 type B2 using 20mm graded aggregate complete all as specified and as directed.

S & F in repair 75 mm bore, PVC (SWR) floor trap, with grating including jointing to waste pipe fixed in cement concrete type B-1 (1:2:4) complete all as specified and directed.

S & F in repairs PVC (SWR) gully trap 125/110 mm, setting and jointing with solvent cement complete all as specified and directed.

S & F 75 mm bore, PVC (SWR), Soil, waste and vent pipes, single socketed in any length with rubber ring joints fixed to walls, etc complete all as specified and directed.

S & F 75 mm bore, PVC (SWR) bends of any radius complete all as specified and directed.

S & F 75 mm bore, PVC (SWR) branch piece, single (single Y) equal or unequal complete all as specified and directed.

S & F 75mm bore, PVC (SWR) junction single, (Single T) equal or unequal complete all as specified and directed.

S & F 75 mm bore, PVC (SWR) vent cowl complete all as specified and directed.

S & F 110 mm bore, PVC (SWR), Soil waste and vent pipes in any length with or without ears, with cement joints fixed to wall, laid in floor etc with all necessary fixing arrangement complete all as specified and directed.

S & F 110 mm bore, PVC (SWR) bends of any radius complete all as specified and directed.

S & F 110 mm bore, PVC (SWR) branch piece, single (single Y) equal or unequal complete all as specified and directed.

S & F 110mm bore, PVC (SWR) junction single, (Single T) equal or unequal complete all as specified and directed.

S & F 110 mm bore, PVC (SWR) vent cowl complete all as specified and directed.

S & F 110 mm bore, PVC (SWR), Soil waste and vent pipes in any length with or without ears, with cement joints, laid in trenches or in floors, etc complete all as specified and directed.

S & F in repairs, vitreous China squatting pan, 'Orissa' pattern, size 580 x 440 mm white with integral foot rest and SWG 'P' or 'S' trap, including provision of lime concrete bedding, connection to trap and flushing pipe etc complete including making good to disturbed surfaces of floor to match with existing specifications complete all as specified and directed.

S & F in repairs, vitreous China wash down water closet pan (pedestal pattern), white, with PVC (SWR) 'P' or 'S' trap including connection to outgoing drain and flushing pipe, anti syphonic pipe with seat and cover complete but excluding flushing cistern & flush pipe including making good damaged/disturbed surfaces complete all as specified and directed.

S & F in repairs, plastic water closet, Seat and Cover for pedestal pan, white / black, closed pattern with flat bottom and mild steel chromium plated or aluminium hinging device complete all as specified and directed.

S & F in repairs Vitreous China Single piece-WC with PP Soft Seat cover, Hinges, Fixing Accessories Set and Accessories Set, Cistern fittings, Size: 370 x 690 x 680mm, S trap-300mm and all fittings and fixtures including connection to outgoing drain including making good damaged/disturbed surfaces complete all as specified and directed. (Make: Jaquar Cat No. CNS-WHT-851S300SPP or equivelant of make as per list of manufacturer's)

S & F in repairs, 10 litre capacity, PVC valve less syphonic action type, flushing cistern, low level, white, with inlet, ball valve, flush pipe, float and handle including brackets complete all as specified and directed.

Dismantling floor, hearth or wall tiling including cement mortar bedding (but not backing) and disposal of debris and rubbish complete all as specified and directed.

M & L for non-skid, ceramic, coloured tiles 7 to 8 mm thick (square/rectangular) area of each tile exc 0.06 sqm but n.exc 0.11 sqm, in floors etc, and set & jointed in neat cement slurry and pointed in white or coloured cement to match with the shade of tiles including 15 mm thick screed bed in cement mortor 1:6 complete all as specified and directed.

S & F 160 mm bore, PVC (SWR), Soil waste and vent pipes in any length with or without ears, with cement joints, laid in trenches or in floors, etc complete all as specified and directed.

M & L Reinforced concrete pipes, class NP2, 200 mm bore, laid and jointed with collars complete all as specified and as directed.

M & L Reinforced concrete pipes, class NP2, 250 mm bore, laid and jointed with collars complete all as specified and as directed.

M & L Reinforced concrete pipes, class NP2, 300 mm bore, laid and jointed with collars complete all as specified and as directed.

M & L for Plain cement concrete 1:3:6, type C-2 (using 40 mm graded stone aggragate) as in concrete bed to drain pipes including packing under and haunching against the sides of pipes after they are laid and tested for 160 mm bore drain pipes complete all as specified and directed .

M & L for plain cement concrete 1:4:8, type D-2 (using 40 mm graded stone aggregate) as in bed to drain pipes including packing under and haunching against the sides of pipes after they are laid and tested complete for 200 mm bore drain pipes complete all as specified and directed.

M & L for plain cement concrete 1:4:8, type D-2 (using 40 mm graded stone aggregate) as in bed to drain pipes including packing under and haunching against the sides of pipes after they are laid and tested complete for 250 mm bore drain pipes complete all as specified and directed.

M & L for plain cement concrete 1:4:8, type D-2 (using 40 mm graded stone aggregate) as in bed to drain pipes including packing under and haunching against the sides of pipes after they are laid and tested complete for 300 mm bore drain pipes complete all as specified and directed.

M & L for Cutting into existing manholes for connecting new drains, making good to pipe and rendering, cutting out existing benching for and forming branch channel (1/2 round or 3/4 round section) in cement concrete 1:2:4 type B1, smooth finished and reforming benching as required for 160 mm bore of pipe complete all as specifieed and directed.

M & L for Cutting into existing manholes for connecting new drains, making good to pipe and rendering, cutting out existing benching for and forming branch channel (1/2 round or 3/4 round section) in cement concrete 1:2:4 type B1, smooth finished and reforming benching as required for 200 mm bore of pipe complete all as specifieed and directed.

M & L for Cutting into existing manholes for connecting new drains, making good to pipe and rendering, cutting out existing benching for and forming branch channel (1/2 round or 3/4 round section) in cement concrete 1:2:4 type B1, smooth finished and reforming benching as required for 250 mm bore of pipe complete all as specifieed and directed.

M & L for loose filling with broken bricks aggregates of gauge 80 to 150 mm in soakage well complete all as specified and directed

M & L for Cleaning the blockage in the WC/floor trap/nahani trap etc completely to enable the sewage to flow freely to the next gully trap/manholes, removing the sludge and other materials from the Manholes by suitable means and removing all the materials obtained from the manholes out side MD land and cleaning the complete area including making good any damages gully trap complete all as directed by the Engr-in-Charge. (Note: The item is measurable upto thrice during the entire contract period. Any additional cleaning if required, contractor shall be liable to clean the same without any extra cost to the Govt.)

M & L for Cleaning of sewage lines 100/110 mm bore by rodding from Man holes to enable the sewage to flow freely to the next manholes, inluding disposing off sludge and other materials obtained from the sewage line to a distance outside MD land, burried under ground (minimum 30 cm below ground level) including necessary excavation of pits in soft/loose soil and returning, filling in including sprinkling of bleaching powder at the rate of 0.50 kg/Sqm and dressing of surplus soil around slope complete all as directed by the Engr-in-Charge. (Note: The item is measurable upto thrice during the entire contract period. Any additional cleaning if required, contractor shall be liable to clean the same without any extra cost to the Govt.)

All as per Serial item No. 51 above but 150/160mm dia pipe complete ditto

All as per Serial item No. 51 above but 200mm dia pipe complete ditto

All as per Serial item No. 51 above but 250mm dia pipe complete ditto

All as per Serial item No. 51 above but 300mm dia pipe complete ditto

M & L for Cleaning the blockage in the Gully trap etc completely to enable the sewage to flow freely to the next gully trap/manholes, removing the sludge and other materials from the Manholes by suitable means and removing all the materials obtained from the manholes out side MD land and cleaning the complete area including making good any damages gully trap complete all as directed by the Engr-in-Charge. (Note: The item is measurable upto thrice during the entire contract period. Any additional cleaning if required, contractor shall be liable to clean the same without any extra cost to the Govt.)

M & L for Opening the cover and Cleaning of Manholes of any depth n.exc 0.5m and of any size by pumping out the sewage water completely inluding disposing off sludge and other materials obtained from the manholes to a distance outside MD land, burried under ground (minimum 45 cm below ground level) including necessary excavation of pits in soft/loose soil and returning, filling in including sprinkling of bleaching powder at the rate of 0.50 kg/Sqm and dressing of surplus soil around slope complete all as directed by the Engr-in-Charge. (Note: The item is measurable upto thrice during the entire contract period. Any additional cleaning if required, contractor shall be liable to clean the same without any extra cost to the Govt.)

All as per serial item No. 57 above but depth exc 0.5m but n.exc 1.00m complete ditto

All as per serial item No. 57 above but depth exc 1.00m but n.exc 1.50m complete ditto

All as per serial item No. 57 above but depth exc 1.50m but n.exc 2.00m complete ditto

All as per serial item No. 57 above but depth exc 2.00m but n.exc 3.00m complete ditto

M & L for Opening the cover and cleaning of septic tanks, sumps, lift well etc of any capacity (of depth n.exc 1.5m), by dewatering foul water and taking out night soil, excreta, sludge, etc by HCV Mounted Suction Discharge Machine having Blow Back Facitlity with Sludge Tank (Minimum 2000 Litre capacity) as required to keep complete Sewage System functional and to avoid any over flowing including removal and disposal of pumped out Sewage water, sludges etc in any form or any other materials etc to outside of MD land to a distance exc 500m to n.exc 1.0 Km, burried underground (minimum 45 cm covered with soil over two layer of bamboo matting without manitaining any gap) including sprinkling bleaching powder @ not less than 0.50 Kg/Sqm on deposit sludge at earth pit and as ordered by the Engr-in-Charge to keep the whole station area pollution free including necessary excavation and earthwork in soft/loose soil for pits, returning, filling in and dressing of surplus soil around to slope as required including refixing the cover in position and cleaning the eitre area and making good damaged portion (if any) complete all as specified and directed. (Note : (i) Depth of sludge shall only be measured for volume. (ii) The item is measurable/operative only ONCE during the entire contract period. Any additional cleaning if required, contractor shall be carried out the same without any extra cost to the Govt, (iii) Each trip of tanker to be taken outside of MD land in presence of concerned JE/Engr-in-Charge. (iv) The cost of bleaching powder, bamboo matting, all necessary earth work, T & P etc as required for cleaning and removal of sludge shall demmed to be included in the unit quoted rate )

All as per Serial Item No. 62 Above but depth of septic tank exc 1.5m and n.exc 3.0m complete ditto

All as per Serial Item No. 62 Above but depth of septic tank exc 3.00m and n.exc 5.20m complete ditto

M & L for preparing newly plastered surfaces of walls, etc and applying three coats of white wash complete all as specified and directed.

KULA PRASAD GOHAIN (BID ID -3317056)

PRADIP CHANGMAI (BID ID -3317109)

Saranga Saikia (BID ID -3312702)

SATYA CHANGMAI (BID ID -3317485)

M/s. Chanda Construction (BID ID -3316923)

M/S SINGH TRADERS (BID ID -3317096)