REPAIR AND CLEANING OF SEWAGE LINE, MANHOLES, INSPECTION CHAMBER AND CERTAIN ALLIED WORKS IN TECH AREA AND OFFICERS ENCLAVE AT 20 WING AF STN BAGDOGRA UNDER GE (AF) BAGDOGRA

Amount

Cleaning of septic tank/ soak well/ manhole etc completely (including de-sludging and de-watering) of solid and liquid sludge by plumbing or mechanically means from inside the tank including spreading of bleaching powder stable having concentration of minimum chlorine content 65% Grade-I quality and removal of sludge to a distance n.exc 250 meters and depositing into excavated pit of appropriate size as directed and filled up with earth in each layer of 30cm thick complete all as specified and directed.

Cleaning of blocked sewage line of 150 mm bore of pipe by rodding with using steel rod or split bamboo stick thoroughly from inspection chamber to manhole or from both sides between manhole to manhole or from manhole to septic tank of any depth till clear flow of sewage line is observed complete all as specified and directed.

All as per item No 2.00 above, but 200 mm bore pipe complete all as specified and directed.

Excavation in trenches n.exc 1.5m wide and n.exc 1.5m in depth for foundation or for taking out or laying pipe lines etc and getting out in soft/loose soil complete all as specified and directed.

Excavation over areas in soft/loose soil n.exc 1.5m deep complete all as specified and directed.

Excavation over areas in soft/loose soil exc 1.5m but n.exc 3m deep complete all as specified and directed.

Dismantling and breaking up drain pipe (salt glazed stone ware or concrete) of 150mm dia (Internal), set in cement mortar including taking out from trenches if required with demolition of concrete bed and removing from the site complete all as specified and directed.

All as per item No 7.00 above, but 100mm dia (Internal) complete all as specified and directed.

M&L for PCC, (1:3:6), type C-2 (using 40mm graded stone aggregate) as in concrete bed to drain pipes including packing under and haunching against the side of pipes after they are laid, jointed and tested for 150mm bore of pipe lines complete all as specified and directed.

All as per item No 9.00 above, but for 100mm bore of pipe lines complete all as specified and directed.

M&L for salt glazed stone ware (SGSW) drain pipe, 150mm dia (Internal), grade ‘A’ laid in trenches and jointed including testing complete all as specified and directed.

All as per item No 11.00 here in above, but 100mm dia (Internal) complete all as specified and directed.

Removing excavated materials (Soils) to a distance n.exc 50m and depositing where directed at a level n.exc 1.5m above the starting point complete all as specified and directed.

Returning, filling in, soft/loose soil, including spreading, levelling, watering and well ramming in layers n.exc 25 cm complete all as specified and directed.

Demolition of cement concrete (un reinforced) of any description and in any position not otherwise specifically provided for complete all as specified and directed.

M&L for plain cement concrete, (1:2:4), type B-0 (using 12.5mm graded stone aggregate) as in surface channel/benching of manholes including necessary form work as required complete all as specified and directed.

Dismantling of cast iron drain pipe of 100 mm bore, jointed in cement mortar including taking out from trenches if required including separating serviceable pipes and setting asides for use complete all as specified and directed.

All as per item No 17.00 above, but 75 mm bore complete all as specified and directed.

Supply, laying, jointing and testing 100mm bore cast iron (sand cast) soil/waste/vent pipe (ISI Marked), any length with or with out ear, with cement joints (1:1), fixed to walls with suitable size clamps, nuts bolts etc complete all as specified and directed.

All as per item No 19.00 above, but 75mm bore complete all as specified and directed.

Laying, jointing and testing 100mm bore cast iron (sand cast) soil/waste/vent pipe, any length with or with out ear, with cement joints (1:1), fixed to walls with suitable size clamps, nuts bolts etc complete all as specified and directed. Note: Old serviceable pipes obtained from dismantling is reused after cleaning of pipe lines.

All as per item No 21.00 above, but 75mm bore complete all as specified and directed.

Cutting 100 mm bore salt glazed stone ware drain pipe in position including jointing socket end of new pipe to same with pocket super yarn and cement mortar 1:1 complete all as specified and directed.

All as per item No 23.00 above, but 150 mm bore complete all as specified and directed.

S&F in repair, 100 mm bore cast iron bend with oval access door complete incl cement mortar joint 1:1 complete all as specified and directed.

All as per item No 25.00 above, but 75 mm bore complete all as specified and directed.

S&F in repair, 100 mm bore cast iron bend complete incl cement mortar joint 1:1 complete all as specified and directed.

All as per item No 27.00 above, but 75 mm bore complete all as specified and directed.

S&F in repair, 75mm bore cast iron branch piece, single (equal or unequal), ordinary or inverted (spigot or socket type) or with parallel branches with oval access door complete including cement mortar joint 1:1 complete all as specified and directed.

All as per item No 29.00 above, but 100mm bore complete all as specified and directed.

S&F in repair, cast iron floor trap 75 mm dia out let including jointing to waste pipe fixed in cement concrete 1:2:4 complete all as specified and directed.

Demolition of brickwork or stone/boulder masonry, built in cement mortar including all quoins, arches, pillars, etc but excluding ashlar facings, dressed stonework and precast concrete articles complete all as specified and directed.

M&L for brickwork with fly ash old size bricks, straight or curved on plan exc 6m mean radius, built in cement mortar 1:4 complete all as specified and directed.

M&L for brickwork with fly ash old size bricks, straight or curved on plan to any radius in half brick thick walls, built in cement mortar 1:4 complete all as specified and directed.

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

M&L for rendering 15mm thick cement plaster in cement mortar 1:4 on fair faces of brick work or concrete surfaces, finished even and fair without using extra cement complete all as specified and directed.

M&L for preparation of newly plastered or un plastered surface of walls including cornices, pilasters etc and applying two coats of cement base paint over a coat of alkali resistant priming paint complete all as specified and directed.

All as per item No 37.00 above, but three coats of white wash on walls complete.

Taking down chowkhat or frame with shutter (without taking off shutter from the frame) area n.exc 1.5 sqm each and removing from the site including making good the disturbed surfaces of wall etc to match with existing adjoining surfaces complete all as specified and directed.

M&L for solid PVC door frame of size 50mm x 45mm made out of 5mm plain colour PVC sheet reinforced with M.S. square tube, supplying & fixing in opening as per specification & drawing complete all as specified and directed.

M&L for factory made solid panel PVC door shutter 30mm thick (style) consisting of frame made out of M.S. tubes for top & bottom rails, M.S. frame shall be covered with heat moulded plain colour PVC 'C' channel heaving a PVC sheet strip of 20mm width stuck inside with solvent cement for stiles and plain colour PVC sheets for top rail, lock rail & bottom rail on either side & as gap insert for top rail & bottom rail; Panelling of plain colour PVC sheet to be fitted in the MS frame welded/sealed to the stiles & rails suitable PVC sheet beading, and jointed together with solvent cement, supplying & fixing in the frame at site as per specification & drawing complete all as specified and directed.

S&F 100mm long stainless steel butt hinge, medium weight, cold rolled complete all as specified and directed.

S&F 150mm long extruded aluminium alloy handle, fabricated type anodised complete all as specified and directed.

S&F 300mm long aluminium alloy anodised sliding door bolt with hasp and staple (bolt type) and fixing with complete accessories complete all as specified and directed.

S&F aluminium anodised barrel tower bolt of extruded section 200mm long complete all as specified and directed.

Demolition of precast RCC cover slab of any description and in any position including separating serviceable reinforcement bars and setting aside for reuse complete all as specified and directed.

M&L for precast RCC, (1:2:4), type B-1 (using 20mm graded stone aggregate) as in cover slab, set in cement mortar (1:4) complete all as specified and directed.

M&L for 10 mm dia and over TMT bars, cut to length, bent to shape required including cranking, hooking ends and binding with and including mild steel wire (annealed) not less than 0.90 mm dia complete all as specified and directed.

S&F in repair, Vitreous china, Squatting pan, 'Orissa Pattern', size 580 mm x 440 mm white, with integral foot rests (excluding flushing cistern and flush pipe) and including 100mm bore ‘P’ or ‘S’ trap and provision of cement concrete bedding and connected to existing flush pipe complete all as specified and directed.

S&F in repair, 10 Ltrs capacity PVC valveless, syphonic action type, flushing cistern, low level, white, with inlet, ball valve, float and handle including brackets complete all as specified and directed.

S&F in repair, vitreous china wash hand basin, white, flat back size 550 x 400 mm excluding tabs but including brackets, CP waste coupling complete all as specified and directed.

S&F in repair, vitreous china bowl urinal flat back, size of 465 x 355 x 265 mm white (minimum), with grating and union for discharge pipe (excluding flushing cistern, flush pipe and waste pipe), complete including providing and fixing plugs, bedding urinal against wall in cement mortar 1:2, securing urinal to plugs with and including 60mm long brass screws, pointing around urinal back in cement; fixing automatic flushing cistern with brackets, flush pipe, grating and union for discharge pipe complete all as specified and directed.

S&F in repair, vitreous china wash down water closet pan (pedestal pattern) white including connection to drain (or outgoing pipe) and to flush pipe, antisiphonage pipe and plastic water closet seat, black, closed pattern with flat bottom and cover and mild steel chromium plated or aluminised hinging device etc complete all as specified and directed.

S&F in repair, 32 mm bore PVC waste pipe for WHB/urinals 600mm long with union etc complete all as specified and directed.

S&F in repair, plastic water closet seat, closed pattern with flat bottom, cover and mild steel chromium plated or aluminised hinging device etc complete all as specified and directed.

S&F in repair, salt glazed stone ware (SGSW) gully trap ‘P’ type, 150x150mm size complete all as specified and directed.

Dismantling floor hearth or wall tiling including cement mortar bedding (but not backing) and rubbish off to the premises complete all as specified and directed.

M&L for non-skid ceramic tile 7 to 8 mm thick (square/ rectangular) area of each tile exc 0.11 sqm but n.exc 0.18 sqm, in floors etc. set and jointed in neat cement slurry and pointed in white or coloured cement to match and including 15mm thick screed bed in CM 1:6, set, jointed in neat cement slurry and pointed in white or coloured cement to match complete all as specified and directed.

M&L for glazed ceramic coloured tile in vertical surface 350x250x7mm or 450x350x7mm thick with matching highlighter laid over and including 10 mm thick rendering in cement mortar 1:3 set and jointed in neat cement slurry and pointed in white or colour cement to match the tile complete all as specified and directed.

M&L in repair, 110 mm bore PVC (SWR) pipe single socketed in any length with rubber ring joints fixed to walls complete all as specified and directed.

All as per item No 60.00 above, but 75 mm bore complete all as specified and directed.

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

All as per item No 62.00 above, but 75 mm bore complete all as specified and directed.

S&F PVC (SWR) bend radius 110mm bore complete all as specified and directed.

All as per item No 64.00 above, but 75 mm bore complete all as specified and directed.

M&L for reinforced concrete pipes of 300mm dia, class NP 2 with one collar per length of pipe jointed with CM including collar complete all as specified and directed.

M&L for cement concrete (1:3:6) (using 40mm graded stone aggregate) in foundation, filling, mass concrete, hard standing and other silimar works complete all as specified and directed.

M&L for cleaning of blocked WCs, bath, urinals, WHBs etc. by attending the complaints of Officers Mess enclave area for day to day maintenance by way of cleaning desludging foreign materials as well as rodding of sewer line and keeping sewer line functional entering from floor trap, water closet, soil waste pipe, gully trap etc upto first manhole with necessary T&P complete all as specified and directed. Note: Contractor should attend emergency complaints even after working hours including sundays and holidays if found necessary.

NOTES :- 1. The amount of schedule of credit shall be deducted from the total of this BOQ for arriving at contract sum.

HALDER ENTERPRISERS (BID ID -3319172)

BUILDERS ASSOCIATE (BID ID -3319108)

SHRI P P SHARMA (BID ID -3319780)

MESSERS D S ENTERPRISE (BID ID -3319074)

UNISON CONSTRUCTION (BID ID -3319692)

RABI BANIK (BID ID -3319689)