REPAIRS REPLACEMENT OF DAMAGED WORN OUT RUSTED WATER SUPPLY MAINS DISTRIBUTION GI/CI PIPE LINES CONTROL VALVES VALVE PITS AND CONNECTED WORKS AT MASIMPUR MILITARY STATION UNDER GE SILCHAR

Amount

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth for foundations, manholes, etc. or for laying cables/pipes, erecting poles, etc. not exceeding 10sqm on plan and getting out in soft / loose soil complete all as specified and as directed

Returning, filling in, including, spreading, leveling, watering and well ramming in layers not exceeding 25cm deep as in any type of soil complete all as specified and as directed

Removing excavated materials to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting point in any type of soil including spreading in low lying area and leveling complete all as specified and as directed

Dismantling of existing unserviceable and rusted MS clamps, angle, MS flat iron, nuts, bolts and washers, etc. and disposing off complete all as specified and as directed

Taking up or down steel tubing and connections and disposing off complete all as specified and as directed of the following sizes of pipes:

Taking up/down old rusted / unserviceable CI / DI water main pipes with spigot and socketed / flanged ends with all fittings including burning out lead joints and recovering lead, etc. cleaning internally by using steel brush/scrubber throughly to remove all rusts, silt, mud, etc. sorting and stacking serviceable pipes for refixing complete all as specified and as directed of following sizes:

M&L for cleaning of internal surfaces of RCC semi-underground / underground sump / reservoir by scrubing the surfaces with the help of coir brush, jute cloth and flushing out / wiping clean all the accumulated mud / silt inside the tank, cleaning and disinfecting the surfaces by applying suitable approved chemical solution @0.2kg/sqm then applying two coats of lime wash on all internal surfaces like wall, ceiling, floor, etc. and writing tank number, capacity of tank, date of cleaning with white synthetic enamel paint over a black synthetic enamel paint base (of suitable dimensions) with size of letter 4" height complete all as specified and as directed at various locations of the following capacities :

100000 Gallon at Srikona Pump House

70000 Gallon at Main Pump House, Kalibari

40000 Gallon at Main Pump House, Kalibari

20000 Gallon at Srikona Pump House, Kalibari

15000 Gallon at ARO, Silchar

10000 Gallon at Srikona Pump House

10000 Gallon at NCC Silchar

M&L for repairs to pressed steel overhead tank at Reserve Hill of capacity 10000 gallon for arresting leakages by means of welding, patch work with steel plates, supporting angle iron of existing thickness and size, etc. and replacing worn out nuts, bolts, etc. to stop water spillage and providing suitable locking arrangements of tank cover including all necessary staging, scaffolding, safety measures, T&P, etc. as required at site complete all as specified and as directed Note: Spare materials will be measured and paid separately under respective items hereunder, labour, cutting,welding, etc. and all other encumbrances shall be deemed to be in the quoted rate

Supply only the following items for repairs of OH steel tank in serial item No. 24 hereinabove:

Angle iron channel of various sized chequred plates, structural grade

Rolled mild steel plates (plain or chequered), channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachment of Fe-410-W (grade-E-250)

M&L for cleaning of internal surfaces of RCC overhead tank / reservoirs including staging to a height approx 40 to 60 feet, etc. by scrubing the surfaces with the help of coir brush, jute cloth and flushing out all the accumulated mud / silt inside the tank, then applying two coats of lime wash on all internal surfaces like wall, ceiling, floor, etc. and writing tank number, capacity of tank, date of cleaning with white synthetic enamel paint over a black synthetic enemal paint base (of suitable dimensions) with size of letter 4" height complete all as specified and as directed at various locations of the following sizes:

35000 Gallon at Lorry Point

20000 Gallon near Bde Cmdr Mess

15000 Gallon at NCC Silchar

M&L for cleaning of internal surfaces of RCC sedimentation tanks of capacity 120000 Gallon each, at any position in any location, with the help of coir brush, jute cloth and flushing out all the accumulated mud / silt inside the tank, then applying two coats of lime wash on all internal surfaces like wall, ceiling, floor, etc. and writing tank number, capacity of tank, date of cleaning with white synthetic enamel paint over a black synthetic enemal paint base (of suitable dimensions) with size of letter 4" height complete all as specified and as directed

M&L for arresting leakages in CI/DI pipelines by plugging leakage with necessary cutting making arrangement for inserting necessary sized tail piece, collar, ferrule, plug , clamp, etc. making lead joint with lead and spun yarn and moulding clay including taking up/down pipe using chain pulley or rope, excavation in any type of soil, returning filling and removal of soil for restoring water supply and testing complete all as secified and as directed for the following sizes of pipes:

Labour only for refixing CI/DI pipes with fittings laid on floor, in trenches and testing complete all as specified and as directed for the following sizes: Notes: (i) Serviceable CI/DI pipes obtained from dismantling shall be used under this item (ii) Excavation, earthwork, fittings and joints will be measured and paid separately under respective items herein

S&F steel water tubing, medium grade, galvanised with screwed and socketed joints, in any length, including supply and fixing all fittings, ISI marked conforming to IS -1239 and fixed to walls or laid in floors / trenches required for connection and tapping from existing supply pipe lines to resume water supply complete all as specified and as directed for the following bores:

S&F bends (any tytpe, radius and angle), tapers any type (straight, bend, increasing, decreasing or double socketed, etc.) tee pieces single branches 'Y' junction double branch, cross (all socket or socket and spigot) collars, caps and plugs for GI pipes upto 150mm bore complete all as specified and as directed

M&L for DI pipes with socketed and spigot ends suitable for tyton joints centrifugally cast (spun) class K-9 conforming to IS:8329 cut to any length laid in trenches including rubber gaskets joints complete all as specified and as directed for the following sizes: Note: Fittings shall be measured and paid separately under respective item

M&L for cast iron specials / fittings like bends (any type, radius and angle) tapers any type (straight, bend, increasing, decreasing or double socket etc.), tee pieces single branch 'Y' junction, double branch, cross (all sockets or socket and spigot), collars, caps, plug, etc. upto and including 150mm bore complete all as specified and as as directed Note: Lead joint, excavation and earthwork shall be measured and paid separately under respective items

M&L for ductile iron specials / fittings like bends (any type, radius and angle) tapers any type (straight, bend, increasing, decreasing or double socket etc.), tee pieces single branch 'Y' junction, double branch, cross (all sockets or socket and spigot), collars, caps, plug, etc. upto and including 150mm bore complete all as specified and as as directed Note: Lead joint, excavation and earthwork shall be measured and paid separately under respective items

M&L for run lead joint for cast iron pipes including jointing material like spun yarn, lead, etc. complete all as specified and as directed for the following sizes of pipe:

M&L for rubber gasket (tyton joint) suitable for DI/CI pipes complete all as specified and as directed of the following sizes of pipe: Note: Excavation and earthwork will be measured and paid separately under respective items

M&L for drilling and tapping CI/GI water mains (in position) for branch connections of 20/25mm bore complete all as specified and as directed

S&F sluice valve cast iron body class PN 1.6, ISI marked, conforming to IS: 14846, both ends fanged with brass spindle and brass check nuts with caat iron hand wheel including jointing material like rubber insulation sheet 3mm thick, bolts, nuts and fixed to pipe line, including testing on installation and taking out and disposing off old unserviceable valve complete all as specified and as directed of the following sizes:

S&F in replacement cast iron air release valve of 100mm dia, double orifice flanges PN 1.0 with tamper proof arrangement including taking out / down old unserviceable valve and disposing off complete all as specified and as directed

S&F gun metal globe or gate valve with iron wheel head, screwed both ends for iron pipe and fixed including necessary cutting into existing pipe, threading, inserting new piece of GI pipe of existing size, and earthwork in any type of soil or breaking/cutting into road/interlocking tiles/cement concrete, etc. and making good the disturbed surfaces including taking out / down old unserviceable valve and disposing off complete all as specified and as directed of the following sizes:

S&F in repairs 20mm dia ball PTMT valves, high pressure, with polythene float and flynut, screwed for iron pipe or brass ferrule and fixed complete all as specified and as directed

S&F in repairs 25mm dia ball PTMT valves, high pressure, with polythene float and flynut, screwed for iron pipe or brass ferrule and fixed complete all as specified and as directed

S&F in repairs 20mm dia bib taps, PVC body for iron pipe or for ferrule complete all as specified and as directed

S&F in repairs 25mm dia bib taps, PVC body for iron pipe or for ferrule complete all as specified and as directed

Supply only herbicide / weed killer chemical in 20litre container / bottle complete all as specified

M&L for preparation of surfaces by scrapping, rubbing with sand paper, etc. of old steel/cast iron surface of any description over 10cm in width or girth, not otherwise described and painting with two coats of synthetic enamel paint (tint as approved) over a coat of red oxide zinc chrome primer including all necessry staging, scafolding, etc. as required complete all as specified and as directed

S&F mild steel bands, straps, hold fasts, clamps, angles, flat iron, wall ties, nuts, bolts, washers and similar articles conforming to Fe-290 grade E-165 including all necessary welding as required complete all as specified and as directed

M&L for plain cement concrete 1:3:6 (type C-1) using 20mm graded stone aggregate as in padding, bases, foundation filling, mass concrete, etc. complete all as specified and as directed

M&L for brickwork with sub-class 'B' bricks, straight or curved on plan exceeding 6m mean radius built in CM (1:6) complete all as specified and as directed

P K ROY & SONS

M/S PIJUSH BHATTACHARJEE

M/S LUIT CONSTRUCTION

M/S SANJIB DEB

m/s builders and suppliers

M/S MOLOY KUMAR DEY

MS AFTAB LASKAR