Kerala Water Authority Tender

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Kerala Water Authority - KWA Tender

Works
Civil And Construction
Civil Works Others
Eprocure
Opening Date12 Dec 2024
Closing Soon19 Dec 2024
Tender Amount₹ 84,50,931 
Notes
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Description

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BOQ Items

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11.36:Providing and fixing I st quality ceramic glazed wall tiles conforming to IS : 15622 (thickness to be specified by the manufacturer), of approved make, in all colours, shades except burgundy, bottle green, black of any size as approved by Engineer -in-Charge, in skirting, risers of steps and dados, over 12 mm thick bed of cement mortar 1:3 (1 cement : 3 coarse sand) and jointing with grey cement slurry @ 3.3 kg per sqm, including pointing in white cement mixed with pigment of matching shade complete.

29.17

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1- APPENDIX-B - Repair works of Flash mixer,cupboard work etc

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OD299407/2023-2024:Supply erection and commissioning of flash mixer with 2 HP motor with SS shaft and paddles with fasteners,flexible coupling and guard etc complete as directed by Engineer in charge. 1)Supply and erection 2HP induction motor for driving agitator for flash mixing unit . 2)Supply and erection SS paddles with SS shaft for flash mixing unit. 3)Supply and erection of gearbox with suitable speed ratio for flash mixing unit

1

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OD299409/2023-2024:Providing roof covering to motor, stater ,Gear boxes for clarifier (2 Nos) and flash mixture(2 Nos) etc by using MS sheet of gauge 16,angle, nut and bolt including cost of materials and labour charges and painting as suitable size and shape for various places located directed by the departmental officers etc.

1

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OD299410/2023-2024:Providing and fixing Aluminium cupboard

1

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2 -APPENDIX-C - Repair work of Clarifiers

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15.18:Dismantling steel work in built up sections in angles, tees, flats and channels including all gusset plates,boltd, nuts, cutting rivets, welding etc. including dismembering and stacking within 50 metres lead.

1850

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OD299411/2023-2024:Dissembling ,repairing,erection and commissioning of floculator in the moving bridge assembling as directed by in charge with varnishing the existing motor servicing the gear box replacing damaged bearings ,floculator paddle leaves and providing new paddle with sheet in suitable size of floculator and shaft repairing etc all works included for the smooth functioning of clariflocculator as per the directions of engineer in charge . 1) Supply, erection and fixing new Centre shaft bearing for clariflocculator bridge after decommissioning the existing bearing . 2) Supply, erection and fixing new slippering assembly for clariflocculator bridge after decommissioning the existing slippering assembly 3) Supply and erection flocculator agitator for slow mixing (200:1) -2 nos 4) Supply and erecting gun metal bush bearing under flocculator agitator paddles -2 set 5) Supply and erection 1HP induction motor (flocculator agitator driving including cabling and suitable starter) -1 set 6) Supply and erection Clarifier bridge driving gearbox with all necessary components -1 set 7) Supply and erection 2HP induction motor (for driving clarifier bridge including cabling and suitable starter) mbling ,repairing,erection and commissioning of floculator in the moving bridge assembling as directed by in charge with varnishing the existing motor servicing the gear box replacing damaged bearings ,floculator paddle leaves and providing new paddle with sheet in suitable size of floculator and shaft repairing etc all works included for the smooth functioning of clariflocculator as per the directions of engineer in charge .

1

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14.1.1:Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground within 50 meters lead:With cement mortar 1:4 ( 1 cement : fine sand)

145.7

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13.7.1:12 mm cement plaster finished with a floating coat of neat cement of mix:1:3 ( 1 cement : 3 fine sand)

1034.85

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OD299412/2023-2024:Supply, fabrication and fixing 40 mm MS square rod for driving scrapper bridge of Clariflocculator

1000

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10.2:Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

50

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10.28:Providing and fixing stainless steel (Grade 304) railing made of Hollow tubes, channels, plates etc., including welding, grinding, buffing, polishing and making curvature (wherever required) and fitting the same with necessary stainless steel nuts and bolts complete, i/c fixing the railing with necessary accessories & stainless steel dash fasteners, stainless steel bolts etc., of required size on the top of the floor or the side of waist slab with suitable arrangement as per approval of Engineer-in-charge, (for payment purpose only weight of stainless steel members shall be considered excluding fixing accessories such as nuts, bolts, fasteners etc.)

72

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OD299413/2023-2024:Supply fabricating and erection of SS bypassing shutters

2

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OD299414/2023-2024:Supply fabricating and and providing SS 305 screen at opening of clarifier water channel

1

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14.47.1:Painting on G.S. Sheet with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade:Old work( one or more coats)

8.8

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14.72:Providing and fixing double scaffolding system (cup lock type) on the exterior side, upto seven story hight made with 40 mm dia. M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staricase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after. The scaffolding system shall be stiffened with bracings, runners, connection with the building etc wherever required for inspection of work at required location with essential safety features for the workmen etc. complete as per directions and approval of Engineer- in Charge. The elevational area of the scaffolding shall be measured for payment purpose. The payment will be made once irrespective of duration of scaffolding. Note:- This item to be used for maintenance work judicially, necessary deduction for scaffolding in the existing item to be done .

120

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13.71:Lettering with black Japan pint of approved brand and manufacture

500

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11.36:Providing and fixing I st quality ceramic glazed wall tiles conforming to IS : 15622 (thickness to be specified by the manufacturer), of approved make, in all colours, shades except burgundy, bottle green, black of any size as approved by Engineer -in-Charge, in skirting, risers of steps and dados, over 12 mm thick bed of cement mortar 1:3 (1 cement : 3 coarse sand) and jointing with grey cement slurry @ 3.3 kg per sqm, including pointing in white cement mixed with pigment of matching shade complete.

100.23

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5.5:Reinforced cement concrete work in arches, archribs, domes, vaults, shells, folded plate and roofs having slope more than 15 up to floor five level excluding the cost of centering, shuttering, finishing and reinforcement with 1:1.5:3 ( 1 cement :1.5 coarse sand(Zone III) : 3 graded stone aggregate 20 mm nominal size)

1.36

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OD299415/2023-2024:Welding for existing damaged handrail

5

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3 -Appendix -D - Construction of Compound wall

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2.6.1: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 disposal of excavated earth, lead up to 50 m and lift up to 1.5 m, disposed earth to be levelled and neatly dressed.All kinds of soil

19.44

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4.1.3:Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:2:4 (cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size)

4.86

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7.1.1: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)

85.86

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50.6.1.5:Solid block masonry using pre cast solid blocks ( Factory made) of size 30x20x20cm or nearest available size confirming to IS 2185 Part I of 1979 for super structure up to floor two level thickness 20cm and above in: CM 1:6 ( 1 cement : 6 coarse sand) etc complete

16.2

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13.1.1:12 mm cement plaster of mix:1:4 ( 1 cement : 4 fine sand)

70.2

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13.31.1:Pointing on brick work or brick flooring with cement mortar 1:3 ( 1 cement : 3 fine sand):Flush/ Ruled /Struck or weathered pointing

108

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13.33.1:Pointing on stone work with cement mortar 1:3 ( 1 cement : 3 fine sand):Flush/ Ruled pointing

48.6

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13.37.1:White washing with lime to give an even shade:New work (three or more coats)

108

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100.98.1008:Engaging Coolie.

25

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6 - APPENDIX-E :- Concrete work and Miscellaneous works

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4.1.2:Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:1/2:3 (cement : 11/2 coarse sand : 3 graded stone aggregate 20 mm nominal size)

49.78

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13.9.2:Cement plaster 1:3 ( 1 cement : 3 coarse sand) finished with a floating coat of neat cement.20 mm cement plaster

374.98

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13.7.1:12 mm cement plaster finished with a floating coat of neat cement of mix:1:3 ( 1 cement : 3 fine sand)

242.57

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2.1.1:Earth work in surface excavation not exceeding 30 cm in depth but exceeding 1.5m in width as well as 10 sqm on plan including disposal of excavated earth up to 50 m and lift up to 1.5 m, disposed soil to be levelled and neatly dressed:All Kinds of soil

440

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100.59.2:Refilling the trenches with a wet mix of close graded granular materials (Stone aggregate - 25mm nominal size - 17.5%, Stone aggregate - 10mm nominal size - 17.5%, Crushed Stone - 2.36mm to 12.5mm - 25%, Stone chippings / screenings - 4.75mm nominal size - 20%, Stone chippings / screenings - 150 micron nominal size - 20%), mixing properly after adding sufficient quantity of water, refilling in layers not exceeding 150mm, compacting properly at Optimum Moisture Content with Surface Plate Vibrator and disposing the excavated material etc. complete, including traffic control, providing caution boards and as per direction of Engineer-in-charge for road restoration works in pipeline leak sites.

88

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4.1.3:Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:2:4 (cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size)

66

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50.9.2.3:Providing and fixing paneled or paneled and glazed shutters for doors, windows and clerestory windows, 35 mm thick shutters including ISI marked M.S pressed butt hinges bright finished of required size with necessary screws, excluding paneling which will be paid for separately, all complete as per direction of Engineer in -charge. using Vengai wood

30.8

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50.14.1.1:Removing and refixing door shutters after necessary repairs for easy opening and closing etc complete as per the direction of site Engineer-in-charge.

7

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10.30.1:Providing & fixing glass panes with putty and glazing clips in steel doors, windows, clerestory windows all complete with :4.0 mm thick glass panes

5

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OD299394/2023-2024:Water level indicator made up of water proof material, size and design specified by the engineer at site, for clear water reservoir and OHSR

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8 -APPENDIX-F - Chlorination arrangements - Supply of Gravity feed gas chlorinator

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OD299391/2023-2024:Supplying and Installing Gravity feed Gas Chlorinator feeding up to 2Kg/Hour with all safety measures and the following accessories (1)100 Kg Cylinder with connecting pipe between chlorine cylinder and primary filter 4 to 5 feet copper pipe both end connect with brass nut and nipple.(2)Primary filter need from chemically treated PVDF rod which resist 10kg/CM2 pressure.Inside rod MS pipe necessary glass wool shall be filled which will be helpful to arrest possible chlorine impurities with necessary moisture glass tube and PVC nut.(3)Diaphragm type pressure gauge shlla be with Teflon packing having range 0 to 14kg/cm2/0 to 200PSI.(4)Chlorine control valve /needle valve shall be made from brass and having ISI specification,(5)Gas bend pipe shall be of PVC chemically treated 20mm dia pipe to resist 10kg/cm2 pressure from primary filter to secondary filter (6) Secondary filter shall be made of chemically treated PVC rod of 36mm dia which resi8st moisture by having in side glass wool and having glass non return valve,PVC moisture nut and moisture glass tube(7) Gas bend having glass non return valve(PVC NRV Bend) to connect secondary filter and mixing chamber made from m 20mm Pipe (PVC)(8)Mixing chamber is made from 90mm Chemically treaed PVX pipe ,BoroSilicate glass tube of 75mm dia , glass orifice tube.,rubber O ring and rubber bush(9)PVC tee with diaphragm valve for inlet for water and drainage of chlorinated wastage from mixing chamber shall be fixed at bottom of mixing chamber(10)PVC water bend made from chemically treated PVC pipe of 20mm dia and connecting mixing chamber and solutionizer(11)PVC solutionizer made from PVC pipe of 63mm dia bottom - out let connection to join chlorine solution line (12) Panel board from phylum sheet- thickness 7 to 8 mm size of size 90x45cm .All these primary filter , secondary filter ,mixing chamber and solutionizer are mounted on the panel board,including oxygen face Mask, fire extinguisher, exhaust fan,alltest certificate and registration of thechlorine cylinder and filling of chlorine gas at TCC etc complete

1

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OD299393/2023-2024:Supply and erection of chlorine leak detector Alarm with single sensor alarm capable of sensing minimum 1 to 5 ppm

1

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10 -APPENDIX- G - Refurbishment of filter beds using anthracite to dual media

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OD299395/2023-2024:Designing and testing of anthracite as per order no.KWA/WASCON/AEE11/697/2018 dated-23/03/2019. by MD KWA

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OD299396/2023-2024:Supply of the Anthracite as per item 1 above in quantity required as per design, properly graded and tested by supplier specifying the source of material and quality commensurate to the following specifications-SP Gravity1.45-1.55, Uniformity coeft.-1.5, bulkdensity0.73- 0.76T/m3,Hardness -3MOH, Hardgrove44- 50,carboon cont.>90%,Ash 3.4%, Volatile 5.7%,Solubility-1.5% in 10%,HCL-10% NaOH,for 24 Hrs certification including all cost ,conveyance to site loading & unloading etc complete. The following specifications for Anthrcite shall be adhered to :Anthracite<br> Effective size d10 - 1.0 to 1.6 mm Specific Gravity - 1.45 to 1.55 Uniformity Coefficient - 1.7 or lower Hardness ( Mohs Scale) - >2.7 Acid Solubility - 5%Shall confirm to AWWA : B100 StandardsThe Anthracite and filter sand shall be tested in Regional Research<br>Laboratory / CSIR Labs of Goverment of India for its suitability.

29

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100.55.5:Removing filter media from the filter beds without making any damages to the existing structures and back manifolds and stacking at a safe and convenient place for segregation process and as per the directions of the department officers etc. complete.

53.84

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OD299397/2023-2024:Repair/Alteration of the under drain system by replacing all damaged pipes with suitable arrangements and providing all additional mechanisms and fixtures required according to the design of multi layer filtering system complete.

35.89

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OD299398/2023-2024:Modification / alteration of the existing back washing system comprising of compressed air and clear water providing new air/blower and clear water providing new air scouring system, providing new pressure regulating valves or such other mechanisms and fixtures required according to the design of multi layer filter media pack back washing operations complete

35.89

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100.55.3:Supplying of 20 to 40 mm pebble (pebbles shall be hard, clean, free from clay, dust and other impurities), stacking in standard heaps for measurement including cost, conveyance up to 5 km and labour charges for stacking, spreading, testing and as per directions of the department officers etc. complete and as per CPHEEO specification.

3.59

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100.55.4:Supplying and stacking for measurement of filter sand having effective size 0.45 to 0.70 mm and uniformity coefficient 1.30 to 1.7, of specific gravity in the range of 2.55 - 2.65 and hard and clean, free from clay, dust and other impurities including cost of materials, labour charges and conveyance of materials up to 5 km and as per the directions of the department officers etc. complete and as per CPHEEO specification.

17.77

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OD299399/2023-2024::Refurbishing the filter bed using dual layer filter media as per the design separately laying each grade of supporting gravel and the filter sand and anthracite one above other separately as directed by the engineer in charge complete.

57.42

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OD299400/2023-2024:Conducting trial run of all the filter beds for a period up to 30 days, recording performance of filter in terms of quality, quantity of filtered water and length of filter run and providing required training to the operators of KWA for the trouble free functioning and maintenance of the filter beds

1

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100.55.6:Cleaning, drying and seiving the removed filter media and stacking the dismantled pebbles for reuse and spreading in the filter box in layers as per specifications and as per directions of the department officers.

5.38

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100.55.1:Supplying of 2 to 6 mm and 6 to 12 mm size fine pebble (pebbles shall be hard, clean, free from clay, dust and other impurities), stacking in standard heaps for measurement including cost, conveyance up to 5 km and labour charges for stacking, spreading, testing and as per the directions of the department officers etc. complete as per CPHEEO specifications.

3.67

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100.55.2:Supplying of 12 to 20mm size pebble (pebbles shall be hard, clean, free from clay, dust and other impurities), stacking in standard heaps for measurement including cost, conveyance up to 5km and labour charges for stacking, spreading, testing and as per the directions of the department officers etc complete and as per CPHEEO specification.

3.59

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OD299401/2023-2024:Washing and cleaning the filter chamber and rectifying damages of filter walls including glazed tiles and floor of the filter bed by concreting where ever necessary, repairing the entire chamber suitable fordual media filter refurbishment

35.89

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4.1.8:Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:4:8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 nominal size)

7.18

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OD299402/2023-2024:Fabrication, supply and erection of chute structure for filter bed to avoid turbulence in the filter bed.

1

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18.31.4.2:Providing and fixing C.I. sluice valves (with cap) complete with bolts, nuts, rubber insertion etc. (the tail pieces if required will be paid separately): 200 mm diameterClass II

1

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OD299403/2023-2024:Supply erection and commissioning of Twin lobe air compressor with capacity 10m3/minute ,Pressure 0.35kg/cm2 Compressor rpm within 2000, Motor drive of 10HP with 1440rpm preferable, the accessories include common base frame, suction filter, suction silencer, discharge silencer, pressure gauge, non-return valve,safety valve, v-belts, belt guard, drive and driven pulleys, anti-vibration pads all fixing nuts and bolts with interconnecting pipe and motor.

1

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OD299404/2023-2024:Supply and fixing clear water flow meter for each filter bed

2

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OD299405/2023-2024:Supply and fixing loss of head assembly with loss of head gauge, pipeline works, float assembly etc.. Complete

2

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OD299406/2023-2024:Supply and fixing rate of flow controllers for each filter bed control floats, headstock including necessary control chambers as per requirement etc. complete

2

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