Kerala Water Authority-KWA has published Annual Maintenance 2021-22 - Rwss To Malayalappuzha - Leak Rectification Works To Pipe Line And Periodic Cleaning Of Slow Sand Filter Bed At Booster Plant. Submission Date for this Tender is 05-05-2021. Sand Filter Tenders in Pathanamthitta Kerala. Bidders can get complete Tender details and download the document.
| Sr No | CorrigendumDate | Corrignedum | CorrigendumType | NewSubmissionDate |
| 1 | 28-Apr-2021 | Retender_Extension | Date | 05-05-2021 |
| Work Name: Annual maintenance 2021-22 - RWSS to Malayalappuzha - Leak rectification works to pipe line and periodic cleaning of slow sand filter bed at booster plant | |||||
|---|---|---|---|---|---|
| Sl. No. | Item Description | Item Code / Make | Quantity | Units | |
| 1 | 1 | Working Charges | BI01010001010000000000000515BI0100001112 | ||
| 2 | 1.001 | Leak rectification work in 32 to 50mm PVC pipe line including earth work excation, fencing, caution borad, traffic divertion, tar/concrete cutting, cost of pipes, specials and labour charges etc. complete as directed - Socketed Jointing (specification as per KWA code 100.47.1.1, 100.47.1.2, 100.47.1.3) | BI01010001010000000000000515BI0100001113 | 15 | No |
| 3 | 1.002 | Do--do-- in 63 to 90mm PVC --do--do-- - Socketed Jointing (specification as per KWA code 100.47.1.4, 100.47.1.5, 100.47.1.6) | BI01010001010000000000000515BI0100001114 | 98 | Leak |
| 4 | 1.003 | Leak rectification work in 110 to 140mm PVC pipe line including earth work excation, fencing, tar/concrete cutting, caution borad, traffic divertion, cost of pipes, specials and labour charges etc. complete as directed - Socket and CIR jointing (specification as per KWA code 100.47.2.2, 100.47.2.3) | BI01010001010000000000000515BI0100001115 | 25 | No |
| 5 | 1.004 | Do--do-- in 160 mm PVC --do--do-- - Socket and CIR jointing (specification as per KWA code 100.47.2.4) | BI01010001010000000000000515BI0100001116 | 8 | Leak |
| 6 | 1.005 | Repairing leakage/blockage of 80 to 100mm AC pipe line using CID joints including earth work excation, fencing, caution borad, traffic divertion, tar/concrete cutting and labour charges etc. complete as directed excluding cost of CID joints (up to 1.5m) (specification as per KWA code 100.46.1.1, 100.45.1.2) | BI01010001010000000000000515BI0100001117 | 15 | Leak |
| 7 | 1.006 | Do--do-- in 150 / 200 / 250 mm AC pipe --do--do-- (up to 1.5m) (specification as per KWA code 100.46.1.4, 100.46.1.6, 100.46.1.7) | BI01010001010000000000000515BI0100001118 | 25 | Leak |
| 8 | 1.007 | Rectification of joint leakages in 80 to 100mm CI pipe by providing lead joint including earth work excavation, tar/concrete cutting, fencing, caution borad, traffic divertion etc. complete excluding cost of pig lead as directed (specification as per KWA code 100.48.3.1, 100.48.3.2) | BI01010001010000000000000515BI0100001119 | 8 | Leak |
| 9 | 1.008 | Do--do-- in 150 to 200 mm by providing lead joint CI pipe --do--do-- (specification as per KWA code 100.48.3.4, 100.48.3.5) | BI01010001010000000000000515BI0100001120 | 8 | Leak |
| 10 | 1.009 | Do--do-- in 250 mm by providing lead joint CI pipe --do--do-- (specification as per KWA code 100.48.3.6) | BI01010001010000000000000515BI0100001121 | 12 | Leak |
| 11 | 1.01 | Rectification of leakages of 32mm,40 mm and 50 m.m GI pipes by replacing the damaged GI union portions, adopter, coupling portions /cutting the old GI pipes up to a length of 1 m which is not possible for threading the pipe due to old age connecting the pipe using suitable PVC pipe in proper alignment including necessary trenching work for exposing the pipe with out any damages to other utilities including the cost of charges hire and conveyance of tools, plant and materials to leak site, bailing out of water, lighting , watching , ribbon fencing, caution board, refilling the trenches by ramming , watering, removing if it is required ,cost of specials,pvc pipe as per the direction of departmental officers. | BI01010001010000000000000515BI0100001123 | 15 | No |
| 12 | 1.011 | Do--do-- in 65 to 80mm GI pipe --do--do-- | BI01010001010000000000000515BI0100001122 | 18 | No |
| 13 | 1.012 | Rectification of leakages BY WELDING of 100/125/150 mm GI Pipes in exposed portions by replacing lengths up to 1.0m by cutting, removing and stacking the damaged portion from the existing line without causing any damages to the remaining portion and specials and conveying and replacing with GI Pipes of suitable size and jointing by three run welding to make a water tight joint, painting the welded portion, testing the line to the required pressure, rectifying any defects noticed, without causing any damages to any other utilities, including the charges hire and conveyance of tools, plant and materials to the leak site, bailing out water, lighting, watching, ribbon fencing, caution boards, traffic diversion, necessary scaffolding including the cost of specials but excluding cost of pipe and as per the direction of departmental officers etc. complete. | BI01010001010000000000000515BI0100001124 | 6 | No |
| 14 | 1.013 | Rectification of leakages of 50 to 80mm GI pipe in exposed portions by replacing GI pipe by 3 run welding including fencing, caution borad, traffic divertion, testing etc. complete including cost of specials as directed (specification as per KWA code 100.50.3.1, 100.50.3.2, 100.50.3.3) | BI01010001010000000000000515BI0100001125 | 8 | No |
| 15 | 1.014 | Supplying and fixing 15 / 20 mm PVC public tap after dismantling the damaged tap including all cost of materials, labour charges, hire for tools and as per the direction of the department officers etc complete. | BI01010001010000000000000515BI0100001126 | 55 | Nos |
| 16 | 1.015 | Rectifying leakages in the boring point/vertical pipe of public tap connection including earth work excavation, concrete/tar cutting, replacing damaged portion of pipe with new 20/25mm PVC 10 kg/cm2 pipe, saddle, fencing, caution borad, traffic divertion etc. complete as directed including cost of pipes and specials (specification as per KWA code 100.57.1, 100.58.1) | BI01010001010000000000000515BI0100001127 | 35 | Leak |
| 17 | 1.016 | Repairing 80/100/125mm CI sluice valve in existing line including necessary trenching work for exposing the valve and removing the vertical pipe and dismantling the top cover ,spindle,shutter and cleaning the same ,inside the valve and resetting the valve and providing flanged joint and providing gland and placing vertical pipe over the valve if tit is necessary and refilling the trenches including cost and labour charges,and sundreis, etc.. complete.e | BI01010001010000000000000515BI0100001128 | 10 | No |
| 18 | 1.017 | Do--do-- 150/200/250mm sluice valve --do--do-- | BI01010001010000000000000515BI0100001129 | 10 | No |
| 19 | 1.018 | Engaging man mazdoor for washing the tank ,clearing the tank site and assisting the fitter for any non scheduled item in connection with leak rectification works ,additional earth work required depth more than 1.5 m and more length ,if it is required as per the direction of departmental officers. | BI01010001010000000000000515BI0100001130 | 30 | No |
| 20 | 1.019 | Engaging fitter for any additional non-scheduled works in connection with only leak rectification works as per the direction of departmental officers | BI01010001010000000000000515BI0100001131 | 25 | No |
| 21 | 1.02 | Removing sedimented silt/clay/slush from slow sand filter bed 20x10 meter size an average depth of 3 to 5 cm thick by engaging mazdoor/man and scrapping the sedimented materials using suitable tools and collecting the materials in pan and and conveying by head load and lifting the pan over the side 2.5 m height and collecting the pan from out side and lowering the ground and conveying at stacking at convenient place and all incidental works etc complete | BI01010001010000000000000515BI0100001132 | 24 | No |
| 22 | 1.021 | Cutting the bituminous / concrete roads with cutting machine for a minimum depth of 200mm along the sides of proposed alignment of the pipe to be laid without causing any damage to other utilities, including the charges for hire and conveyance of tools and plant, cost of consumables and charges for lighting, watching, ribbon fencing, caution boards, traffice diversion, and as per the direction of departmental officers etc. complete, before carrying out the demolition of bituminous / concrete road by mechanical means and carrying out the excavation. | BI01010001010000000000000515BI0100001133 | 32.401 | metre |
| 23 | 1.022 | 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 : 4 graded stone aggregate 20 mm nominal size) | BI01010001010000000000000515BI0100001134 | 3.36 | cum |
| 24 | 1.023 | Demolishing cement concrete manually / by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in-Charge.Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix) | BI01010001010000000000000515BI0100001135 | 1.008 | cum |
| 25 | 1.024 | Supplying 250 m.m CID/ CIR joint with nut and bolt,rubber rings at the site | BI01010001010000000000000515BI0100001136 | 12 | set |
| 26 | 1.025 | Supplying 200 m.m CID/ 200 m.m CIR joint with nut and bolt,rubber rings at the site | BI01010001010000000000000515BI0100001137 | 12 | set |
| 27 | 1.026 | Supplying 150 m.m CID/ 160 m.m CIR joint with nut and bolt,rubber rings at the site | BI01010001010000000000000515BI0100001138 | 40 | set |
| 28 | 1.027 | Supplying 125 m.m CID/ 140 m.m CIR joint with nut and bolt,rubber rings at the site | BI01010001010000000000000515BI0100001139 | 12 | set |
| 29 | 1.028 | Supplying 100 m.m CID/ 110 m.m CIR joint with nut and bolt,rubber rings at the site | BI01010001010000000000000515BI0100001140 | 16 | set |
| 30 | 1.029 | Supplying 80 m.m CID/90 m.m CIR joint with nut and bolt,rubber rings at the site | BI01010001010000000000000515BI0100001141 | 16 | set |
| 31 | 1.03 | Supply of pig lead/lead wool | BI01010001010000000000000515BI0100001142 | 35 | kg |
| 32 | 1.031 | Supplying ASTM pipe 80 schedule for additional length required for street tap /urgent repairing/replacing works for service lines connected with KWA pipe line works/shifting due to existing line damaged as per direction of departmental officers | BI01010001010000000000000515BI0100001143 | 18 | metre |
| 33 | 1.032 | Supplying 90/110 m.m PVC valve heavy duty for fixing in line for control the flow of water/closing for leak rectification works | BI01010001010000000000000515BI0100001144 | 5 | No |
| 34 | 1.033 | Supplying 63/75 m.m PVC valve heavy duty for fixing in line for control the flow of water/closing for leak rectification works | BI01010001010000000000000515BI0100001145 | 5 | No |
| 35 | 1.034 | Supplying 32/40/50 m.m PVC valve heavy duty for fixing in line for control the flow of water/closing for leak rectification works | BI01010001010000000000000515BI0100001146 | 8 | No |
| 36 | 1.035 | 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. | BI01010001010000000000000515BI0100001147 | 10.5 | cum |
| 37 | 1.036 | Supply of PVC Pipe, 6kg/cm2, 160mm Dia. | BI01010001010000000000000515BI0100001148 | 18 | metre |
| 38 | 2 | GST @ 12% of bill amount will be paid additionally. | BI01010001010000000000000515BI0100001155 |
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