Renovation and modification work of Sewage Treatment plant at Calicut International Airport

Amount

Carriage of materials by mechanical transport including loading unloading and stacking Earth 1km

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead up to 50 m and lift up to 1.5 m, as directed by Engineer-in-charge. All kinds of soil

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift up to 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. All kinds of soil

Excavating trenches of required width for pipes, cables, etc. including excavation for sockets, and dressing of sides, ramming of bottoms, depth up to 1.5 m, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20 cm in depth, including consolidating each deposited layer by ramming, watering, etc. and disposing of surplus excavated soil as directed, within a lead of 50 m. All kinds of soil. Pipes, cables etc., not exceeding 80 mm dia.

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level - 1:3:6 (1 Cement : 3 coarse sand (zone-III) : 6 graded stone aggregate 20 mm nominal size) for base

Centering and shuttering including strutting, propping etc. and removal of form for : Foundations, footings, bases for columns

Centering and shuttering including strutting, propping etc. and removal of form for : Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

Centering and shuttering including strutting, propping etc. and removal of form for: Lintels, beams, plinth beams, girders, bressumers and cantilevers

Centering and shuttering including strutting, propping etc. and removal of form for: Columns, Pillars, Piers, Abutments, Posts and Struts

Steel reinforcement for RCC work including straightening, cutting, bending, placing in position and binding all complete up to plinth level - 150kgs/cum of RCC. Excess/less steel used for design mix is payable/recoverable separately Thermo-Mechanically Treated bars of grade Fe-500D or more.

Providing and laying in position machine batched and machine mixed design mix M-25 grade cement concrete for reinforced cement concrete work, using cement content as per approved design mix, including pumping of concrete to site of laying but excluding the cost of centering, shuttering, finishing and reinforcement, including admixtures in recommended proportions as per IS: 9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability as per direction of Engineer-in-charge. (Note :- Cement content considered in this item is @ 330 kg/cum. Excess/ less cement used as per design mix is payable/recoverable separately All works up to plinth level

Providing and laying in position machine batched and machine mixed design mix M-25 grade cement concrete for reinforced cement concrete work, using cement content as per approved design mix, including pumping of concrete to site of laying but excluding the cost of centering, shuttering, finishing and reinforcement, including admixtures in recommended proportions as per IS: 9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability as per direction of Engineer-in-charge. (Note :- Cement content considered in this item is @ 330 kg/cum. Excess/ less cement used as per design mix is payable/recoverable separately All works above plinth level up to floor V level

Extra for providing richer mixes at all floor levels. Note:- Excess/less cement over the specified cement content used is payable /recoverable separately. Providing M-30 grade concrete instead of M-25 grade BMC/RMC. (Note:- Cement content considered in M-30 is @ 340 kg/cum)

Add for using extra cement in the items of design mix over and above the specified cement content therein.

Extra for additional cost of centering for arches exceeding 6m span including all shuttering, bolting, wedging and removal (Area of the soffit to be measured).

Random rubble masonry with hard stone in foundation and plinth including levelling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) up to plinth level with : Cement mortar 1:6 (1 cement : 6 coarse sand)

Random rubble masonry with hard stone in superstructure above plinth level and up to floor five level, including levelling up with cement concrete 1:6:12 (1 cement: 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) at window sills, ceiling level and the like. Cement mortar 1:6 (1 cement : 6 coarse sand)

Steel work in built up tubular (round, square or rectangular hollow tubes etc.) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete. Hot finished welded type tubes

Steel work welded in built up sections/ framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required. In stringers, treads, landings etc. of stair cases, including use of chequered plate wherever required, all complete

Providing corrugated G.S. sheet roofing including vertical / curved surface fixed with polymer coated J or L hooks, bolts and nuts 8 mm diameter with bitumen and G.I. limpet washers or with G.I. limpet washers filled with white lead, including a coat of approved steel primer and two coats of approved paint on overlapping of sheets complete (up to any pitch in horizontal/ vertical or curved surfaces),excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required. 1.00 mm thick with zinc coating not less than 275 gm./m²

Providing 12 mm cement plaster finished with a floating coat of neat cement of mix :- 1:3 (1 cement: 3 fine sand)

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture

Demolishing brick work manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge. In cement mortar

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. 20 mm dia nominal bore

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. 25mm dia nominal bore.

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. 32mm dia nominal bore.

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. 40mm dia nominal bore.

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. 50mm dia nominal bore.

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. 65 mm dia nominal bore.

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. 80mm dia nominal bore.

Providing and operating the hydraulic excavator cum back hoe loader on pneumatic tyre like J.C.B 2DX max or equivalent for cutting, levelling etc. in the operational area including transportation to and from the site of operation, fuel and driver charges and other incidental expenses on this account etc. as directed by the Engineer-in-Charge. (The payment will be based on the number of hours worked at the site for items that are not quantified otherwise.)

Providing and performing soil test from the excavated pit and then re checking structural drawing for both plan and sectional views of Anaerobic Tank, DE nitrification Tank, Oil Trap at Canteen and Oil Trap at STP as per the specification given in the tender documents and approved by EIC (Note: Cost of vetting the drawings in case of revision due to values below design consideration from Govt. engineering College will be reimbursed as per actuals)

Extra for providing and mixing integral liquid waterproofing compound like Shalipast LW+ or equivalent in reinforced concrete /cement plaster work in proportion recommended by the manufacturers.

Providing and laying Steel reinforced aluminium cover of size 2.30 x 1.55 x 0.15 m for oil trap at canteen as directed by engineer in charge.

Providing and fixing Class C GI pipe satisfying IS 1239 Part 1 (6mm- 150mm), IS 3589 (168.3mm to 2540mm ) and GI fittings as per IS 1239 Part 2 & Plumbing as per the plan and as directed by Engineer in charge in various stations of STP. 200 mm GI Pipe of 6.35mm thickness

Providing and fixing Class C GI pipe satisfying IS 1239 Part 1 (6mm- 150mm), IS 3589 (168.3mm to 2540mm ) and GI fittings as per IS 1239 Part 2 & Plumbing as per the plan and as directed by Engineer in charge in various stations of STP. 100 mm GI Pipe of 5.40mm thickness

Providing and installing Ball Valve Zoloto/leader make or equivalent, as per the plan and as directed by engineer in charge 25 mm dia ball valve

Providing and installing Ball Valve Zoloto/leader make or equivalent, as per the plan and as directed by engineer in charge 32 mm dia Ball Valve

Providing and installing Ball Valve Zoloto/leader make or equivalent, as per the plan and as directed by engineer in charge 40 mm dia Ball Valve

Providing and installing Ball Valve Zoloto/leader make or equivalent, as per the plan and as directed by engineer in charge 50 mm dia Ball Valve

Providing and installing Ball Valve Zoloto/leader make or equivalent, as per the plan and as directed by engineer in charge 65 mm dia Ball Valve

Providing and installing Ball Valve Zoloto/leader make or equivalent, as per the plan and as directed by engineer in charge 80 mm dia Ball Valve

Providing and installing Ball Valve Zoloto/leader make or equivalent, as per the plan and as directed by engineer in charge 100 mm dia Ball Valve

Providing and installing Man hole cover made of Cast Iron 0.75m x 0.75m dimension for different tanks of STP as per the direction of engineer in charge

Providing and fixing stainless steel perforated screen made of 2mm SS sheet the perforation size to be 4mm dia. The scree to be fixed as per sound engineering practice and as per the direction of engineer in charge 1.00 x 0.80m

Providing and fixing stainless steel perforated screen made of 2mm SS sheet the perforation size to be 4mm dia. The scree to be fixed as per sound engineering practice and as per the direction of engineer in charge 0.60 x 0.60m

Providing and fixing Stainless steel Collection Basket with handle made up of 10mm SS rode. The collection basket to be made of 2mm thick SS sheet having 4mm thick perforation and fixing at the required location as per sound engineering practice and as per direction of Engineer in Charge. 0.60 x 0.60 x 0.60m

Providing and fixing Stainless steel Collection Basket with handle made up of 10mm SS rode. The collection basket to be made of 2mm thick SS sheet having 4mm thick perforation and fixing at the required location as per sound engineering practice and as per direction of Engineer in Charge. 0.45 x 0.45 x 0.45m

Providing and replacing 100mm dia butterfly valve of leader make or equivalent in the existing pipe line system after carefully removing the existing valve and fixing the new one including treading/welding etc. complete as per the sound engineering practice and as directed by engineer in charge.

Providing and replacing 50mm dia non return valve [NRV] of leader make or equivalent in the existing pipeline system after carefully removing the existing valve and fixing the new one including treading/welding etc. complete as per the sound engineering practice and as directed by engineer in charge.

Providing and replacing control handle of 100mm dia butterfly valve in the existing system including servicing the existing valve by oiling etc. complete as per the sound engineering practice and as directed by engineer in charge.

Providing and installing Chemical Dozer with dosing tanks, made of Milton roy or equivalent having capacity of delivery 10liter per hour as per the direction of engineer in charge

Providing and installing of Sludge Transfer Pump (1+1 spare),Make Kirlosker of 3 HP (2.2 KW), 50mm X 50mm suction and delivery size, self priming sludge pump of model SP2HC SET or equivalent having Head 23 M, 2840 RPM & 415 V as per the direction of engineer in charge

Providing & Installing twin lobbed air compressors (1 + 1 spare) of EVEREST make , of model 67ET, delivering air 400 M3 / Hr at a pressure of 0.6 Kg / cm2 @ 1180 RPM. Supported by Electric Motors (1 + 1 Spare) , of make Kirlosker, Model TIA546AF-02 or equivalent having 1450 RPM, 415V, 15 KW (20 HP) & 28 Amps as per the direction of engineer in charge

Providing & laying of 3C x 16Sq.mm, XLPE/PVC insulated, PVC sheeted armed Aluminium conductor cable conforming to relevant IS, as per direction of the Engineer in charge

Providing & installing water level controller for feed pumps, filter feed pump & treated water pumps as per plan or as per direction of the Engineer in charge

Providing and installing additional self priming Sludge Effluent Transfer Pumps (1+1 Spare) of capacity 126m3/hr i.e. 35lit/second. The head of the pump should be 10 meter liquid column of 10HP rating. Kirloskar or Crompton greaves make is preferred. Installation as per the plan or as per direction of the Engineer in charge.

Providing and installing Standby Pressure Sand Filter. Inner Diameter of the pressure vessel is 1.5 meters, height of the cylindrical portion is 1.50 meters & 6mm thickness and both Dish ends are 30 cm height 8mm thickness each (total height is 2.10 meters). Thickness of MS sheet is 6 mm with two coats Epoxy Primer and two coats Epoxy Top Coats at the interior and exterior surface of pressure vessels and Fitted with vacuum breaker and pressure gauge. 70% media filling is required and the height of the media should be 1.4 M. Total volume of media is 1.85 M3 and the quantity required is 3340 kg. Pebble of size 25 mm to 18 mm shall be filled at bottom up to 20 cm column height (540kg), followed by Pebble of size 18mm to 12 mm next 10 cm (400kg), Gravel of mesh size 4/8 next 10 cm (300kg), Coarse sand of mesh size 10/16 next 20 cm (900 kg) and finally fine sand of mesh size 16/24 in top most 30 cm (1200kg). Testing and commissioning of the stand by pressure sand filter shall be performed at last.

Providing and installing Standby Pressure Carbon Filter having inner diameter of the pressure vessel as 1.5 meters, height of the cylindrical portion as 2.0 meters and both Dish ends as 30 cm each (total height is 2.60 meters). Thickness of MS sheet shall be 6mm at cylindrical portion and 8mm at dish ends. Two coats Epoxy Primer and two coats Epoxy Top Coats shall be applied at the interior and exterior surface of pressure vessels and shall be fitted with vacuum breaker and pressure gauge. 70% media filling is required and the height of the media should be 1.4 M. Total volume of media is 2.5 M3 and the required quantity of Activated carbon with Iodine value above 1000 and mesh size 6/12 is 1.77 M3. Requirement of Activated carbon with Iodine value above 1000 and mesh size 6/12 is 900 kg and shall be filled as top most layer of column height 100cm. Pebble of size 25 mm to 18 mm shall be filled in the bottom 20 cm (750kg), followed by Pebble of size 18mm to 12 mm up to 10 cm (350kg), Gravel of mesh size 2/4 in next 5 cm (150 kg) and Gravel of mesh size 4/8 in next 5 cm (150 kg) respectively. Finally Testing and commissioning of the stand by pressure carbon filter shall be performed.

Shifting of existing sludge transfer pumps towards west (near filter feed pump) as per the direction of engineer in charge

Providing and installing Fine bubble Tube Diffusers-Aeration Manifold in aeration tank of make Scogen (or Equivalent). Material of construction should be Silicon. Flow Rate @ 10 m3/hr of length and diameter 100cm & 9cm respectively. Installation as per the plan or as per direction of the Engineer in charge.

Providing and installing retrieving arrangement for air diffusers for lifting diffusers while maintenance. Installation as per the plan or as per direction of the Engineer in charge.

Providing and installing Anaerobic Media having surface area approximately 150 M2/M3 in the anaerobic tank as per the plan or direction of engineer in charge. PVC Material of 0.4 mm thickness and size of 600X 1200 X 600 MM (22 sheets) COOLDECK / MUNTERS model is preferred

Providing and installing MBBR Media made of Material UV stabilized Poly propylene/Poly Ethylene having specific surface area of approximately 450 m2/m3,diameter of 25 mm & height of 12 mm in the aeration tanks as per the plan or direction of the engineer in charge. Number of Units per m3 should be 75,000. Tecpro/MM Aqua or equivalent model is preferred.

ENVOCARE CONSULTING PRIVATE LIMITED

Green Method Engineering Pvt.Ltd.

PURE GREEN ENGINEERING PVT LTD