OandM Water Supply Schemes Annual Maintenance Washing and minor works maintenance of WTP Vellayani under WW Section Vandithadam for the year 2025 26 General Pipeline Work

CLARIFLOCULATOR NO-1 AND 2

100.53.2:Washing Clarifloculator using brooms, brushes and bleaching powder by engaging coolies, scrubbing twice, washing and cleaning using fresh water, including side wall, floor slab and columns, disposing the the slurry / waste materials away from the immediate premises and within the initial lead of 50m from the periphery of the clari floculator, without causing any damage to the existing structure and installations, charges including the operation of valves, conveyance and hire charges of tools and as per the direction of the department officers etc. complete.

100.53.1.a:Washing OHSR/GLSR using brooms, brushes and bleaching powder by engaging coolies, scrubbing twice, washing and cleaning using fresh water, including side wall, floor slab and columns, disposing the the slurry / waste materials away from the immediate premises and within the initial lead of 50m from the periphery of the tank, without causing any damage to the existing structure and installations, charges including the operation of valves, conveyance and hire charges of tools and as per the direction of the department officers etc. complete.

AERATOR LEADING CHANNEL

100.53.2:Washing Clarifloculator using brooms, brushes and bleaching powder by engaging coolies, scrubbing twice, washing and cleaning using fresh water, including side wall, floor slab and columns, disposing the the slurry / waste materials away from the immediate premises and within the initial lead of 50m from the periphery of the clari floculator, without causing any damage to the existing structure and installations, charges including the operation of valves, conveyance and hire charges of tools and as per the direction of the department officers etc. complete.

CLEAR WATER SUMP

100.53.1.a:Washing OHSR/GLSR using brooms, brushes and bleaching powder by engaging coolies, scrubbing twice, washing and cleaning using fresh water, including side wall, floor slab and columns, disposing the the slurry / waste materials away from the immediate premises and within the initial lead of 50m from the periphery of the tank, without causing any damage to the existing structure and installations, charges including the operation of valves, conveyance and hire charges of tools and as per the direction of the department officers etc. complete.

RAW WATER -WELL

100.54.4.6:Desilting open wells of dia above 6.0m and up to 9.0m and depth up to 12.0m by earth work excavation in or under water, after closing the inlet valves and plugging any holes in the steining by engaging divers with breathing accessories, bailing out water using pump set of suitable capacity, lifting the excavated silt/mud/clay using ropes, pulleys and buckets and disposing the same within minimum lead of 50 m from the periphery of the well, including engaging coolies for scrapping the inner side of the well, without causing any damages to the existing structures and installations, including hire and conveyance of tools and plant and as per the directions of the department officers etc. complete.

OD238372/2025-2026:Clearing the roots,leaves and other decay particles of lotus,algae in the intake portion of the raw water pump house by using special labours,boats etc and removing the waste particles away from the pump house as per the direction of departmental officers etc complete

OD238373/2025-2026:Coolie engaged for removing silt,slurry and bailing out water etc complete

OD238374/2025-2026:White washer engaged for scrabing,cleaning and wipping GI materials for painting work as per the directions of departmental officers etc. complete

OTHER MAINTEANCE WORKS AT WTP ,VELLAYANI

OD238368/2025-2026:Gland packing works in various sizes of valves including all labour, hire of tools and plants etc complete as per the direction of departmental officers.

OD238364/2025-2026:Heating motors of Raw water and Clear water and plant including top- uping mechanical oils including all labour charges , cost of oils , rend of bulbs , hire of tools and plants etc complete as per the direction of departmental officers.

OD238355/2025-2026:Repair of Gears in various sizes of valve in WTP plant including all labour charges , lathe charges , suitable materials , hire of tools and plants etc complete as per the direction of departmental officers.

OD238350/2025-2026:Supplying and fixing of GI Chain for clarifoculator bridge including all labour, hire of tools and plants etc complete as per the direction of departmental officers.

OD238351/2025-2026:Repair of shutters in 80 mm to 250 mm sizes of valves including all labour, hire of tools and plants etc complete as per the direction of departmental officers.

OD238361/2025-2026:Repair of shutters in 350 mm to 400 mm sizes of valves including all labour, hire of tools and plants etc complete as per the direction of departmental officers.

OD238358/2025-2026:Supplying steel spindle and GI nuts at various sizes of valves including all labour, hire of tools and plants etc complete as per the direction of departmental officers.

OD238356/2025-2026:Electrician engaged for minor electric works in side the panel board including labor charges , electric accessories etc

OD238363/2025-2026:Greasing the motors of pump sets including cost of grease and labour charges etc

100.98.229:Supply of PVC Pipe, 10kg/cm2, 20mm Dia.

100.98.230:Supply of PVC Pipe, 10kg/cm2, 25mm Dia.

100.98.236:Supply of PVC Pipe, 10kg/cm2, 90mm Dia.

100.98.240:Supply of PVC Pipe, 10kg/cm2, 200mm Dia.

100.98.428:Supply of CI Non Return Valve, Conforming to IS 5312 Part I - 1984, PN 1.6, Size 80mm.

OD238360/2025-2026:Minor leak repair works in (exposed portion ) various sizes of PVC pipes in WTP at Vellayani including cost of materials all labour, hire of tools and plants etc complete as per the direction of departmental officers.

OD238359/2025-2026:Supplying & fixing 25mm PVC Valve

OD238349/2025-2026:Supplying and fixing 32mm PVC Valve

OD238353/2025-2026:Supplying and fixing 50mm PVC Valve

OD238352/2025-2026:Supplying & fixing 63mm PVC Valve

4.1.5: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) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources)

14.75:Repair to plaster of thickness 12mm to 20 mm in patches of area 2.5 sqm and under, including cutting the patch in proper shape, raking out joints and preparing plastering the wall surface with white cement based polymer modified self curing mortar, including disposal of rubbish, all complete as per the direction of Engineer-In-Charge.

OD238357/2025-2026:Supplying CI Square Type Cover With Frame (Medium Duty)

OD238348/2025-2026:Repair works 450 HP Pump Set including pump alignments, replacing various sizes of bearings in side the pump , bearing sleeves. repacking and instaling including lathe charges , conveying charges , labour charges etc

OD238354/2025-2026:Repair works 150 HP Pump Set including . pump alignments, replacing various sizes of bearings in side the pump , bearing sleeves. repacking and installing including lathe charges , conveying charges , labour charges etc

OD238369/2025-2026:Repair works 125 HP VT Pump Set including . pump alignments, replacing various sizes of bearings in side the pump , bearing sleeves. repacking and installing including lathe charges , conveying charges , labour charges etc

OD238366/2025-2026:Supplying and fixing chemical stored reusable Tank for storing the diluted potassium permagnate solution as per the direction of the departmental officers.

OD238371/2025-2026:Rectification of starter of panel including replacing burned copper legs , cables , other incidental works etc inside the panel board of various sizes of pump sets