Repair Maintenance to Water Supply Distribution System including Certain Connected Item of Works and Maintenance and Cleaning of Water Tanks, UG Sump and OH Tanks at TP and Non-TP Area at INS Kalinga, INS Karna and NAD Bheemunipatnam, Visakhapatnam

Amount

M & L for Construction of Valve Chamber of size 900 X 900 X 600 mm internal size suitable for Sluice Valve, with PCC 1:4:8, Type D2, using 40mm graded aggregate for foundation, 200 mm thick Brickwork with Fly Ash Bricks in Cement Mortar 1:6, 40 mm thick PCC, 1:2:4, Type B1, using 20mm graded aggregate Coping, rendering in CM 1:4, 15 mm thick including provision of Mild Steel Sheet Cover 3 mm thick with 40 X 40 X 6 mm size Angle Iron frame work embedded in concrete with suitable hinges and locking arrangements including two coat of synthetic enamel black paint over a coat of red oxide zinc chrome primer to steel surfaces and including necessary earth work excavation in any type of soil etc., removal of surplus soil off the premises, demolition of existing Valve Chamber of any description complete all as specified and shown on drawing CEDD / TD / 119, Sheet No. 1 / 1 dated 20 August 1983, revised up to 21 September 1992.

M & L for Construction of Valve Chamber of size 1050 X 1050 X 1050 mm internal size suitable for Sluice Valve, with PCC 1:4:8, Type D2, using 40mm graded aggregate for foundation, 200 mm thick Brickwork with Fly Ash Bricks in Cement Mortar 1:6, 40 mm thick PCC, 1:2:4, Type B1, using 20mm graded aggregate Coping, rendering in CM 1:4, 15 mm thick including provision of Mild Steel Sheet Cover 3 mm thick with 40 X 40 X 6 mm size Angle Iron frame work embedded in concrete with suitable hinges and locking arrangements including two coat of synthetic enamel black paint over a coat of red oxide zinc chrome primer to steel surfaces and including necessary earth work excavation in any type of soil etc., removal of surplus soil off the premises, demolition of existing Valve Chamber of any description complete all as specified and shown on drawing CEDD / TD / 119, Sheet No. 1 / 1 dated 20 August 1983, revised up to 21 September 1992.

M & L for Cutting Bituminous Road / Hardstanding etc. as required for Jointing / Laying Cables and Pipeline of Width not exceeding 450mm and Depth not exceeding 750mm and refilling after laying and making good with PCC 1:2:4, Type B1 using 20mm graded stone aggregate, 100mm thick complete all as specified and as directed.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m deep in Soft / Loose soil for laying Pipes / Cables etc. complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick of excavated soil complete all as specified and as directed. Note: A deduction of 10% shall be made from total computed volume of filling to cater in bulk irrespective of machinery used for ramming.

Removal of excavated material [Soil] to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5 m complete all as specified and as directed.

Cutting existing steel tubing for alterations or additions [each cut measured] for 20mm bore pipe complete all as specified and as directed.

Cutting existing steel tubing for alterations or additions [each cut measured] for 25/32mm bore pipe complete all as specified and as directed.

Cutting existing steel tubing for alterations or additions [each cut measured] for 40mm bore pipe complete all as specified and as directed.

Cutting existing steel tubing for alterations or additions [each cut measured] for 50mm bore pipe complete all as specified and as directed.

Taking down or up steel tubing and connections for 20 mm bore of pipe complete all as specified and as directed.

Taking down or up steel tubing and connections for 25/32 mm bore of pipe complete all as specified and as directed.

Taking down or up steel tubing and connections for 40 mm bore of pipe complete all as specified and as directed.

Taking down or up steel tubing and connections for 50 mm bore of pipe complete all as specified and as directed.

Refixing Old GI water tubing of 20 mm bore, medium grade including all fittings such as bends, tees, short pieces, connectors, elbows, reducers, union, sockets etc fixed to walls, ceiling or laid on floors including testing complete all as specified and as directed.

Refixing Old GI water tubing of 25/32 mm bore, medium grade including all fittings such as bends, tees, short pieces, connectors, elbows, reducers, union, sockets etc fixed to walls, ceiling or laid on floors including testing complete all as specified and as directed.

Refixing Old GI water tubing of 40 mm bore, medium grade including all fittings such as bends, tees, short pieces, connectors, elbows, reducers, union, sockets etc fixed to walls, ceiling or laid on floors including testing complete all as specified and as directed.

Refixing Old GI water tubing of 50 mm bore, medium grade including all fittings such as bends, tees, short pieces, connectors, elbows, reducers, union, sockets etc fixed to walls, ceiling or laid on floors including testing complete all as specified and as directed.

Supplying and laying GI Tubing of 20 mm bore, Medium Grade conforming to IS - 1239 [Part - 1] including all fittings such as bends, tees, short pieces, connectors, elbows, reducers, union, sockets etc. fixed to walls, ceiling or laid on floors or laid in trenches including testing complete all as specified and as directed. Note: Earth work and excavation will be measured and paid separately.

Supplying and laying GI Tubing of 25 mm bore, Medium Grade conforming to IS - 1239 [Part - 1] including all fittings such as bends, tees, short pieces, connectors, elbows, reducers, union, sockets etc. fixed to walls, ceiling or laid on floors or laid in trenches including testing complete all as specified and as directed. Note: Earth work and excavation will be measured and paid separately.

Supplying and laying GI Tubing of 40 mm bore, Medium Grade conforming to IS - 1239 [Part - 1] including all fittings such as bends, tees, short pieces, connectors, elbows, reducers, union, sockets etc. fixed to walls, ceiling or laid on floors or laid in trenches including testing complete all as specified and as directed. Note: Earth work and excavation will be measured and paid separately.

Supplying and laying GI Tubing of 50 mm bore, Medium Grade conforming to IS - 1239 [Part - 1] including all fittings such as bends, tees, short pieces, connectors, elbows, reducers, union, sockets etc. fixed to walls, ceiling or laid on floors or laid in trenches including testing complete all as specified and as directed. Note: Earth work and excavation will be measured and paid separately.

M & L for Aresting Leakages of Run Lead Joint of CI / DI / MS Pipes of 150 mm dia bore, Spigot and Socket ends by Caulking complete all as specified and as directed.

M & L for Aresting Leakages of Run Lead Joint of CI / DI / MS Pipes of 100 mm dia bore, Spigot and Socket ends by Caulking complete all as specified and as directed.

M & L for Aresting Leakages of Run Lead Joint of CI / DI / MS Pipes of 80 mm dia bore, Spigot and Socket ends by Caulking complete all as specified and as directed.

M & L for Aresting Leakages of Rubber or Fibre Board Gasket Joint of CI / DI / MS Pipes of 150 mm dia bore, Flanged ends complete all as specified and as directed.

M & L for Aresting Leakages of Rubber or Fibre Board Gasket Joint of CI / DI / MS Pipes of 100 mm dia bore, Flanged ends complete all as specified and as directed.

M & L for Aresting Leakages of Rubber or Fibre Board Gasket Joint of CI / DI / MS Pipes of 80 mm dia bore, Flanged ends complete all as specified and as directed.

Taking up old rusted unserviceable Cast Iron / Ductile Iron Water Mains of 150mm Bore [including all fittings], with spigot and socket ends and lead joints including burning out joints and recovering lead complete all as specified and as directed.

Taking up old rusted unserviceable Cast Iron / Ductile Iron Water Mains of 200mm Bore [including all fittings], with spigot and socket ends and lead joints including burning out joints and recovering lead complete all as specified and as directed.

Supplying and laying 150 mm bore Ductile Iron Pressure Pipes, Centrifugally Cast [Spun], Class "K-9" with Spigot and Socket ends conforming to IS - 8329 in standard lengths suitable for Push-On Rubber Gasket Jointing with inside Cement Mortar Lining and Black Bitumen external coating and including necessary DI Specials as required complete all as specified and as directed. Note: Earth work and excavation will be measured and paid separately.

Supplying and laying 200 mm bore Ductile Iron Pressure Pipes, Centrifugally Cast [Spun], Class "K-9" with Spigot and Socket ends conforming to IS - 8329 in standard lengths suitable for Push-On Rubber Gasket Jointing with inside Cement Mortar Lining and Black Bitumen external coating and including necessary DI Specials as required of any description complete all as specified and as directed. Note: Earth work and excavation will be measured and paid separately.

Supplying and laying MS ERW Pipe, 150 mm bore, Medium Grade, conforming to IS – 1239 including all fittings such as bends, tees, short pieces, connectors, elbows, reducers, union, sockets etc., welding to CI / MS Pipes to make leak proof joints, laid in floors or fixed to walls and ceilings including testing including applying two coats of Synthetic Enamel paint over one coat of Red Oxide / Zinc Chrome Primer and taking down existing MS Pipe of any description and in any position complete all as specified and as directed.

Supplying and laying MS ERW Pipe, 300 mm bore, Medium Grade, conforming to IS – 3589 including all fittings such as bends, tees, short pieces, connectors, elbows, reducers, union, sockets etc., welding to CI / MS Pipes to make leak proof joints, laid in floors or fixed to walls and ceilings including testing including applying two coats of Synthetic Enamel paint over one coat of Red Oxide / Zinc Chrome Primer and taking down existing MS Pipe of any description and in any position complete all as specified and as directed.

S & F Rotational Moulded Polythene [HDPE] Water Tanks, Double Layered, ISI Marked, Cylindrical & Vertical Type 500 Litres Capacity hoisted and fixed in position including provision of 40mm/25mm dia spouts for connecting inlet, outlet, over flow and washout pipes complete including taking down old tanks and removing to store complete all as specified and as directed.

S & F Rotational Moulded Polythene [HDPE] Water Tanks, Double Layered, ISI Marked, Cylindrical & Vertical Type 750 Litres Capacity hoisted and fixed in position including provision of 40mm/25mm dia spouts for connecting inlet, outlet, over flow and washout pipes complete including taking down old tanks and removing to store complete all as specified and as directed.

S & F Rotational Moulded Polythene [HDPE] Water Tanks, Double Layered, ISI Marked, Cylindrical & Vertical Type 1000 Litres Capacity hoisted and fixed in position including provision of 40mm/25mm dia spouts for connecting inlet, outlet, over flow and washout pipes complete including taking down old tanks and removing to store complete all as specified and as directed.

S & F Rotational Moulded Polythene [HDPE] Water Tanks, Double Layered, ISI Marked, Cylindrical & Vertical Type 2000 Litres Capacity hoisted and fixed in position including provision of 40mm/25mm dia spouts for connecting inlet, outlet, over flow and washout pipes complete including taking down old tanks and removing to store complete all as specified and as directed.

M & L for cleaning of Overhead Water Tank of 1.00 Lakh Gallons Capacity located at various places at any height by removing the inlet and outlet coupling connections, emptying all dirty / muddy water from the tanks using Diesel / Electric Driven Non-Clogging Pumps, removing the Scale / Sludge / Mud / Algae formed including other foreign materials got deposited on sides of walls and bottom of the tanks by scrapping and brushing with wire brush, cleaning with pressure pump, washing with bleaching powder slurry and allowing to dry and then washing and cleaning the tank with fresh water, applying two coats of white wash on all internal surfaces and writing the details of tanks like Date of Cleaning, Capacity of Tank and Due Date for Next Cleaning etc. on the out side of the tank with Synthetic Enamel Paint with letters of size 20 cm high, 10cm width in White colour over Black background of size 1000 X 600mm including cleaning of bottom surfaces of platform, replacement of unserviceable / defective inlet and outlet coupling and fittings etc. complete all as specified and as directed.

M & L for cleaning of Underground / Semi Underground Sump of 1.50 Lakh Gallons Capacity located at various places at any height by removing the inlet and outlet coupling connections, emptying all dirty / muddy water from the tanks using Diesel / Electric Driven Non-Clogging Pumps, removing the Scale / Sludge / Mud / Algae formed including other foreign materials got deposited on sides of walls and bottom of the tanks by scrapping and brushing with wire brush, cleaning with pressure pump, washing with bleaching powder slurry and allowing to dry and then washing and cleaning the tank with fresh water, applying two coats of white wash on all internal surfaces and writing the details of tanks like Date of Cleaning, Capacity of Tank and Due Date for Next Cleaning etc. on the out side of the tank with Synthetic Enamel Paint with letters of size 20 cm high, 10cm width in White colour over Black background of size 1000 X 600mm including cleaning of bottom surfaces of platform, replacement of unserviceable / defective inlet and outlet coupling and fittings etc. complete all as specified and as directed.

M & L for cleaning of Underground / Semi Underground Sump of 2.00 Lakh Gallons Capacity located at various places at any height by removing the inlet and outlet coupling connections, emptying all dirty / muddy water from the tanks using Diesel / Electric Driven Non-Clogging Pumps, removing the Scale / Sludge / Mud / Algae formed including other foreign materials got deposited on sides of walls and bottom of the tanks by scrapping and brushing with wire brush, cleaning with pressure pump, washing with bleaching powder slurry and allowing to dry and then washing and cleaning the tank with fresh water, applying two coats of white wash on all internal surfaces and writing the details of tanks like Date of Cleaning, Capacity of Tank and Due Date for Next Cleaning etc. on the out side of the tank with Synthetic Enamel Paint with letters of size 20 cm high, 10cm width in White colour over Black background of size 1000 X 600mm including cleaning of bottom surfaces of platform, replacement of unserviceable / defective inlet and outlet coupling and fittings etc. complete all as specified and as directed.

M & L for cleaning of Underground / Semi Underground Sump of 1.00 Lakh Gallons Capacity located at various places at any height by removing the inlet and outlet coupling connections, emptying all dirty / muddy water from the tanks using Diesel / Electric Driven Non-Clogging Pumps, removing the Scale / Sludge / Mud / Algae formed including other foreign materials got deposited on sides of walls and bottom of the tanks by scrapping and brushing with wire brush, cleaning with pressure pump, washing with bleaching powder slurry and allowing to dry and then washing and cleaning the tank with fresh water, applying two coats of white wash on all internal surfaces and writing the details of tanks like Date of Cleaning, Capacity of Tank and Due Date for Next Cleaning etc. on the out side of the tank with Synthetic Enamel Paint with letters of size 20 cm high, 10cm width in White colour over Black background of size 1000 X 600mm including cleaning of bottom surfaces of platform, replacement of unserviceable / defective inlet and outlet coupling and fittings etc. complete all as specified and as directed. Note for Serial Item No. 38, 39, 40 & 41: [a] 06 Nos. of Photographs of Overhead Water Tank / Underground / Semi Underground Sump before and after cleaning Shall be submitted to Engineer-in-Charge for record before claiming payment. [b] Sample testing of every Overhead Water Tank / Underground / Semi Underground Sump before and after cleaning from NABL Accredited Laboratory for Microbial parameters of water of Three Tanks as decided by the GE before and after cleaning of tank. [c] The Overhead Water Tank / Underground / Semi Underground Sump shall be cleaned and disinfected within 24 Hours after handing over of the same for cleaning to avoid hindrance in water supply to the connected area.

M & L for removing of Soil and Debris from Static Tank of 3.60 metre Dia and 3.60 metre Depth by emptying all dirty / muddy water from the tanks using Diesel / Electric Driven Non-Clogging Pumps, removing the Scale / Sludge / Mud / Algae formed including other foreign materials got deposited on sides of walls and bottom of the tanks by scrapping and brushing with wire brush, cleaning with pressure pump, washing with bleaching powder slurry and allowing to dry and then washing and cleaning the tank with fresh water, applying two coats of white wash on all internal surfaces and writing the details of tanks like Date of Cleaning, Capacity of Tank and Due Date for Next Cleaning etc. on the out side of the tank with Synthetic Enamel Paint with letters of size 20 cm high, 10cm width in White colour over Black background of size 1000 X 600mm including cleaning of bottom surfaces of platform, replacement of unserviceable / defective inlet and outlet coupling and fittings etc. complete all as specified and as directed.

M & L for removing of Soil and Debris from Shallow Well of 5.5 metre Dia and 7.50 metre Depth by emptying all dirty / muddy water from the tanks using Diesel / Electric Driven Non-Clogging Pumps, removing the Scale / Sludge / Mud / Algae formed including other foreign materials got deposited on sides of walls and bottom of the tanks by scrapping and brushing with wire brush, cleaning with pressure pump, washing with bleaching powder slurry and allowing to dry and then washing and cleaning the tank with fresh water, applying two coats of white wash on all internal surfaces and writing the details of tanks like Date of Cleaning, Capacity of Tank and Due Date for Next Cleaning etc. on the out side of the tank with Synthetic Enamel Paint with letters of size 20 cm high, 10cm width in White colour over Black background of size 1000 X 600mm including cleaning of bottom surfaces of platform, replacement of unserviceable / defective inlet and outlet coupling and fittings etc. complete all as specified and as directed.

M7 L for Cleaning of E/M Installation [Pump House] including clearing of vegetation, wild growth and trimming of Grass / Shrubs / Plants / Trees etc. around the installation compound to upkeep of the installations in neat and tidy conditions complete all as specified and as directed.

M & L for Disconnecting existing tanks, setting aside [or lowering if required] for repairs, cleaning, etc. including Cleaning and removing all scale dirt etc from mouths of circulating pipes of water tanks etc of 250 to 500 Litres Capacity located at various places at any height by removing the inlet and outlet coupling connections, emptying all dirty / muddy water from the tanks, removing the Scale / Sludge / Mud / Algae formed including other foreign materials got deposited on sides of walls and bottom of the tanks by scrapping and brushing with wire brush, cleaning with pressure pump, washing with bleaching powder slurry and allowing to dry and then washing and cleaning the tank with fresh water and writing the details of tanks like Date of Cleaning, Capacity of Tank and Due Date for Next Cleaning etc. on the out side of the tank with Synthetic Enamel Paint with letters of size 20 cm high, 10cm width in Black colour over White background of size 400 X 200mm including cleaning of bottom surfaces of platform, replacement of unserviceable / defective inlet and outlet coupling and fittings etc. reconnecting and re-fixing in position complete all as specified and as directed.

All as per Serial Item No. 46 above but of capacity exceeding 500 Litres and not exceeding 1000 Litres complete all as specified and as directed.

All as per Serial Item No. 46 above but of capacity exceeding 1000 Litres and not exceeding 2000 Litres complete all as specified and as directed.

M & L for Testing of Water Samples both at Inlet Water supplied by / received from GVMC and Outlet Water at Consumer End for all parameters as per IS – 10500 from NABL Accredited Laboratory and submitting the test report including remedial measures if required complete all as specified and as directed. Note: One Sample is consider as One Job and the Testing shall be carried out once in a Month or at regular Intervals as directed by the Engineer-in-Charge.

Taking down Cement Plaster of any description on brick or stone walls or concrete surfaces etc including raking out joints, hacking for key scrubbing down with water etc and removing rubbish to a distance not exceeding 1.50 KM complete all as specified and as directed.

M & L for rendering 5mm thick in cement mortar 1:4 over a backing coat of 10mm thick in CM 1:6 on concrete or brick masonry surfaces including mixing water proofing compound as per manufacturer's instructions and finishing the top surface even and smooth without using extra cement complete all as specified and as directed. Note: Water proofing compound will be measured and paid separately.

Supply only Integral Water Proofing Compound [ISI marked] of approved make complete all as specified and as directed.

S.S.TRADERS (BID ID -3372737)

BHASKARA RAO CONSTRUCTIONS (BID ID -3372158)

suresh electricals (BID ID -3372403)

SRI SAMPATH SAI MODERN ARCH CONSTRUCTIONS (BID ID -3372593)

VENKATESWARA ENGINEERS AND CONTRACTORS (BID ID -3368051)

M/S SRI VENKATA BHAVANI CONSTRUCTIONS (BID ID -3372117)