REPAIRS AND REPLACEMENT AND CLEANING OF SEWAGE LINGE, SEPTIC TANK, SOAK PITS, MANHOLE INSPECTION CHAMBER AT TECH AREA AND OFFR 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 pumbing 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 not exc 250 meters and depositing into excavated pti of appropriate size as directed and filled up with earth in each layer of 30cm thick complete all as specified and as 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 as directed.

All as per ser item No. 2.00 above but 100mm bore.

Cleaning of blocked sewage line of 200 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 as directed. Note for Ser No.2.00, 2.01 & 3.00 : (i) The rates quoted in the above item includes cost of T&P like rods, bamboos etc complete. (ii) The lines or manhole measured once can not measured again within 3 months. If blocks in the same lines or manhole re-occur within 3 months the contractor will clean again & nothing will be paid extra for this (iii) Minimum 2 persons shall be deployed by contractor and they shall be present on all working days from 0900 hrs to 1700 hrs for maintenance of sewage lines. The persons will be detailed by JE/AE concerned every morning for attending complaints on daily basis. (iv) The complaint has to be rectified within defined time as given in complaint slip failing which penalty will be imposed @ 500/- per complaint per day.

Excavation in trenches not exc. 1.5m wide and not 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 as directed.

Dismantling and breaking up drain pipes (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 as directed.

Dismantling and breaking up drain pipes (Salt glazed stone ware or concrete) of 100mm 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 as directed.

M & L for PCC (1:3:6) type C-2 using 40mm graded stone aggregates 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 as directed

M & L for PCC (1:3:6) type C-2 using 40mm graded stone aggregates 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 100mm bore of pipe lines complete all as specified and as 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 as directed.

M & L for Salt glazed stone ware (SGSW) drain pipe, 100mm dia (Internal), grade ‘A’ laid in trenches and jointed including testing complete all as specified and as directed.

Demolition of cement concrete (un reinforced) in ground floors and pavings etc (including tiles toping) not exc. 15 cm thick below or above ground level complete all as specified and as directed.

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

Dismantling of Cast iron drain pipes 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 as directed.

Dismantling of Cast iron drain pipes of 75 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 as directed.

Supply, laying, jointing and testing 100mm bore Cast iron (sand cast) soil/waste/vent pipes(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 as directed (Make : BIC/NICCO/ICC or other equivalent make with ISI marked).

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

Supply, laying, jointing and testing 75mm bore. Cast iron (sand cast) soil/waste/vent pipes(ISI Marked), any length with or with out ear, jointed with cement joints(1:1), fixed to walls with suitable size clamps, nuts bolts etc complete all as specified and as directed (Make : BIC/NICCO/ICC or other equivalent make with ISI marked).

Laying, jointing and testing 75mm bore Cast iron (sand cast) soil/waste/vent pipes, any length with or with out ear, with cement joints (1:1), fixed to walls with suitable size clamps, nuts bolts etc (old serviceable pipes obtained from dismantling is reused after cleaning of pipe lines) complete all as specified and as 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 specifed and directed.

Cutting 150 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 specifed and directed.

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

S&F in repairs, 75 mm bore cast iron bend with oval access door complete incl cement mortar joint 1:1.complete all as specifed and directed.

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

S&F in repairs, 75 mm bore cast iron bend complete incl cement mortar joint 1:1. complete all as specifed and directed.

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

S & F in repairs, 75mm bore cast iron branch pieces, double (equal or unequal),ordinary or inverted (spigot or socket type) or with parallel branches with oval acess door complete including cement mortar joint 1:1 complete all as specifed and directed..

S & F in repairs,100mm bore cast iron branch pieces, single (equal or unequal),ordinary or inverted (spigot or socket type) or with parallel branches with oval acess door complete including cement mortar joint 1:1 complete all as specifed and directed..

S & F in repairs,100mm bore cast iron branch pieces, double (equal or unequal),ordinary or inverted (spigot or socket type) or with parallel branches with oval acess door complete including cement mortar joint 1:1 complete all as specifed and directed..

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

Demolition of brick work of any description built in cement mortar as in broken manholes / septic tanks complete all as specifed and directed.

M&L for fly ash brick work built in cement mortar 1:4 with fly ash size bricks straight or curved on plan etc 6 mtr mean radius as in manholes complete all as specifed 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 as directed.

M&L for 15 mm thick Rendering in cement mortar (1:4) mixed with water proofing compound, on fair faces of brick or concrete surfaces, as in internal surfaces of manholes complete all as specified and as directed.(NOTE : Water Proofing compound (WPC) shall be measured and paid separately as supply only) complete all as specifed and directed.

Supply only water proofing compound complete all as specifed and directed.

M & L for Rendering 15 mm thick in cement mortar (1:4) on brick or concrete surfaces on walls, finished even and smooth without using extra cement complete all as specified and as 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 as directed.

M&L for Precast RCC (1:2:4) type B-1 using 20mm graded stone aggregates as in cover slab, set in cement mortar (1:6) complete all as specified and as directed.

S&F 10 mm dia and over Thermo mechanically treated (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 as directed.

S&F in repairs, Vitreous china, white Sqatting pan “Orissa Pattern” of size 580 mm x 440 mm with integral foot rest & cast iron ‘P’ or ‘S’ trap (excluding flushing cistern and flush pipe) including provision of lime concrete bedding and connected to existing flush pipe complete all as specified and as directed. (Make : Parryware / Hindware/Cera)

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

S&F in repairs, vitreous china Wash hand basin, white , flat back size 550x400 mm excluding tabs but including brackets, CP waste coupling complete all as specifed and directed.

S&F in repairs, vitreous china wash down water closet pan (pedestal pattern) white including connection to drain (or outgoing pipe) and to flush pipe, antishonage pipe etc complete all as specified and directed.

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

M & L for fly ash Brick work with well burnt old size fly ash bricks (first quality locally available bricks) laid flat, dry and pointed in cement mortar (1:3) complete all as specified and as directed.

Removing excavated materials (Soils) to a distance not exc. 50m and depositing where directed at a level not exc. 1.5m above the starting point complete all as specified and as directed.

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

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

M & L for non skid coloured ceramic floor tiles of size of tile exc. 0.11 but n.exc.0.18 sqm each 7 mm thick as in floor laid over 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 specifed and directed.

M&L for glazed ceramic coloured tiles in vertical surface 350 x 250 x 7 mm or 450 x 350 x 7 mm thick with matching highlighter 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 coloured tiles (Size and design/colour of tiles will be approved by GE) complete all as specified and directed.

S&F repairs, for 110mm bore PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to walls complete all as specifed and directed.

S&F in repairs, for 75mm bore PVC (SWR) pipes single socketed in any length with rubber ring joints fixed to walls complete all as specifed and directed.

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

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

S&F PVC (SWR) Bend radius any radius 110mm bore complete all as specifed and directed.

S&F PVC (SWR) Bend radius any radius 75mm bore complete all as specifed and directed.

S&F Stack clamps out of 50 mm by 5 mm flat iron for 100 mm bore pipe including bolts and nuts and securing ends of stays to wall or roof all complete as specified and as directed.

S&F Stack clamps out of 50 mm by 5 mm flat iron for 75 mm bore pipe including bolts and nuts and securing ends of stays to wall or roof all complete as specified and as 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).

M&L for rendering 15 mm thick cement plaster in CM (1:6) on fair faces of brick wall or concrete surfaces and finishing the surface even and smooth (without using extra cement complete all as specified and as directed.

M&L for rendering 15 mm thick cement plaster in CM (1:6) on other than fair faces of brick wall or concrete surfaces and finishing the surface even and smooth (without using extra cement complete all as specified and as directed.

M&L for preparation of new plastered surfaces of walls and applying two coat of cement based paintover a coat of alkali resistant primer complete all as specified and as directed.

Demolition of PCC in ground floor and paving n.exc 15 cm thick (below or above ground level) etc all as specified and directed by Engineer-in-Charge.

M&L for PCC type D-2 1:4:8 (using 40mm graded aggregate) as in foundation filling and mass concrete all as specified and directed.

M&L for PCC type C1 (1:3:6) (20mm graded stone aggregate) as in cells, plinth courses, string courses, lacing courses, copings, kneelers, apexs stones, bed plates etc.

M&L for PCC type E-2 1:5:10 (using 40mm graded aggregate) as in filling and mass concrete all as specified and directed.

M&L 75 mm thick PCC 1:3:6, type C1 (using 20mm graded stone aggregate) in plinth protection laid in alternative bays finished even and smooth without using extra cement complete all as directed.

Dismantling of cast iron drain pipes of 75 mm bore, jointed in cement morter including taking out from trenches if required including seperating serviceable pipe for reuse complete all as specified and as directed.

S&F in repair 75mm bore branch double pieces, single (equal or unequal),ordinary or inverted (spigot or socket type) or with parallel branches. complete all as specifed and directed by Engr-in-Charge.

Cast iron floor trap 100mm outlet dia with grating including joints to waste pipe fixed in cement concrete type B1 1:2:4 using 20mm graded crushed stone aggregate

S&F in repair cast iron grating of size 200x200x6mm as in gully trap complete all as specified and as directed

S&F in repair Cast iron cowls 100mm dia jointed in cm (1:1) complete all as specified and as directed

All as per item no 71.00 above but 75mm dia

S & F glazed ceramic coloured tiles (300x200x7 mm ) thick set and jointed in neat cement slurry and pointed in white or coloured cement to match the colour of tiles in vertical surfaces such as skirting dados etc including over 10 mm thick cement plaster in CM 1:4 all as specified and directed.

NOTES :- 1. The amount of schedule of credit shall be deducted from the total of this BOQ for arriving at contract sum. 2. Unless otherwise specified the rates for PCC shall deemed to include the cost of formwork shuttering etc., required for complete and proper execution of the work. Refer Schedule A notes for details.

M/S SUNNY ENTERPRISE

M/S MANAS MITRA

M/S IDEAL CONSTRUCTIONS

M/s Chakraborty Enterprise

M/S Banerjee construction co

SUNIL DAS AND CO

SHRI P P SHARMA