Kerala Water Authority Tender

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Kerala Water Authority - KWA Tender

Works
Civil And Construction
Water Storage And Supply
Eprocure
Opening Date12 Mar 2025
Closing Soon10 Apr 2025
Tender Amount₹ 25,13,228 
Notes
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Costs

Description

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BOQ Items

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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.

8.84

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OD187616/2023-2024:Supplying Grit of effective size varying 6.35 mm - 3.2 mm for supporting media of filter bed

2.95

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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.

8.84

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OD187802/2023-2024:Supply of CI Butterfly Valve (PN 10) modulating type 220 V AC Quarter turn ;Disc type SGI , Electrical Actuator ,Wafer type end to suit ASMEB16.5 -Size 200mm

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OD92364/2024-2025:Supply of CI Butterfly Valve (PN 10) modulating type 220 V AC Quarter turn ;Disc type SGI , Electrical Actuator ,Wafer type end to suit ASMEB16.5 -size 250 mm

2

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OD92365/2024-2025:supplying and 58mm PP/PPFV special nozzles for the filter underdrainage system and fixing the same on the filter bed floor with suitable stainless steel/FRP mezzanine floor &support system connecting to to the central manifold as per standard specification

100

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Working Charges

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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.

29.45

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OD186508/2023-2024:Repair/ Alteration of the under 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 etc. complete. ( TS Approved : 2021/13068)

29.45

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OD185114/2023-2024:Modification/alteration of the existing back washing system comprising of compressed air and clear water providing new air/blower and clear water providing new scouring system, providing new pressure regulating valves or such other mechanisms and fixtures required according to the design of multi layer media pack back washing operations complete. As per the direction of department officers.

29.45

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OD185234/2023-2024:Washing and cleaning the fitter chamber and rectifying damages oi filter walls including glazed tiles, preparing entire chamber suitable for dual media filter refurbishment.

111.58

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100.98.1008:Engaging Coolie.

10

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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)

2.95

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15.23.2:Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 50 metres lead.For thickness of tiles above 25 mm and up to 40 mm

58.74

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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.

58.74

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OD92369/2024-2025:Supply, fixing and cutting SS sheet, by gas cutting . Grinding the cut edges / welded portions in SS sheet, specials by grinding machine , Welding SS sheet, pipe and special by gas or electric plant for three run welding including cost of gas,all labour and hire charges of tools etc complete.

8

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OD185351/2023-2024:Disinfection and sterilization of one filter chamber, gullet, inter connecting pipes and water collection chamber, using appropriate disinfectant and devices so that the entire area is free from insects and its larvae and eggs including cost of disinfectant and clear water from other source, labour etc complete..as per the direction of departmental officers

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OD92370/2024-2025:Conveying and fixing C.I. butterfly valves (with cap) by providing complete with bolts, nuts, rubber insertions etc. excluding the cost of valve :200 mm diameter.

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OD187810/2023-2024:Conveying and fixing C.I. butterfly valves (with cap) by providing complete with bolts, nuts, rubber insertions etc. excluding the cost of valve : 250 mm diameter.

2

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OD185398/2023-2024:Trial run of all the filter bed for a period up to 30 days and providing required training to the operators and KWA personal for trouble free functioning and maintenance of the filter bed and filter

1

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OD92379/2024-2025:charges for Laying anthracite/Pebbles/ filter sand (having effective size 0.45 to 0.70 mm) / grit of effective size varying 6.35 mm to 3.2 mm in the filter box carefully over higher size pebble layer already laid so that the dual media interface is properly formed for maximum filter efficiency and longer life of filter media, each layer should be laid without disturbing the lower layer already laid, and ensuring uniform thickness for each layer and each media, and as per directions of the department officers.

29.45

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OD112527/2024-2025:Charges for Dismantling the existing 250 mm DF butterfly valve (modulating Type electrical actuator) by loosening or cutting out the bolts or lifting with help of chain pulley arrangement of checking for damages, removing from the existing pipe without causing any damages/ alignment to existing structure or pipeline and other utilities, including the hire and conveyance of tools and plant, bailing out water, providing safety measures .. etc. complete as per the direction of Departmental officers(dismantling 250mm valve)

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OD112531/2024-2025:Charges for Dismantling the existing 200 mm DF butterfly valve (modulating Type electrical actuator) by loosening or cutting out the bolts or lifting with help of chain pulley arrangement of checking for damages, removing from the existing pipe without causing any damages/ alignment to existing structure or pipeline and other utilities, including the hire and conveyance of tools and plant, bailing out water, providing safety measures .. etc. complete as per the direction of Departmental officers for 200 mm valve

2

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