REPAIR MAINTENANCE OF WATER SUPPLY INSTALLATIONS AND DISTRIBUTION PIPELINES WITH CONNECTED ACCESSORIES AND CLEANING OF PVC RCC PS TANKS ETC AT ROWRIAH SARAIBARI BHALUKMARA UNDER GE JORHAT

Amount

Excavating in trenches, n exc 1.5 m wide and n exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out in soft/loose soil , complete all as specified and directed.

Returning filling in soft/loose soil, including, spreading levelling watering and well ramming in layers not exc. 25 cm complete all as specified and directed.

Removing excavated soils to a distance not exceeding 50 Metres and depositing where directed at a level n. exc. 1.5 M above the starting point complete all as specified and directed.

Taking up cast iron water mains (including all fittings), with spigot and socket ends and lead joints, 80 mm bore, including burning off lead joints and recovering lead, for the following bore of pipes, complete all as directed.

Taking up cast iron water mains (including all fittings), with spigot and socket ends and lead joints, 100 mm bore, including burning off lead joints and recovering lead, for the following bore of pipes, complete all as directed.

Taking up or down, steel tubing, and connection including cleaning for re-fixing or removal from site of work, 20 mm bore, complete all as directed.

Taking up or down, steel tubing, and connection including cleaning for re-fixing or removal from site of work, 25 mm bore, complete all as directed.

Taking up or down, steel tubing, and connection including cleaning for re-fixing or removal from site of work, 40 mm bore, complete all as directed.

Taking up or down, steel tubing, and connection including cleaning for re-fixing or removal from site of work, 50 mm bore, complete all as directed.

Taking up or down, steel tubing, and connection including cleaning for re-fixing or removal from site of work, 80 mm bore, complete all as directed.

Taking up or down, steel tubing, and connection including cleaning for re-fixing or removal from site of work, 100 mm bore, complete all as directed.

Supply and Laying, 80 mm bore, centrifugally cast (spun) ductile iron pressure pipes for water mains, with spigot and socketed ends, Class K9, ISI Marked [IS 8329:2000 (Reaffirmed 2005)], in any length, laid in trenches,complete all as specified and directed. NOTE:- Push on flexible joints with rubber gaskets, will be measured and paid seperately.

Supply and Laying, 100 mm bore, centrifugally cast (spun) ductile iron pressure pipes for water mains, with spigot and socketed ends, Class K9, ISI Marked [IS 8329:2000 (Reaffirmed 2005)], in any length, laid in trenches,complete all as specified and directed. NOTE:- Push on flexible joints with rubber gaskets, will be measured and paid seperately.

Materials and Labour for,20 mm bore, galvanized steel tubing, medium grade, with all fittings, laid in trenches, complete all as specified and directed.

Materials and Labour for,25 mm bore, galvanized steel tubing, medium grade, with all fittings, laid in trenches, complete all as specified and directed.

Materials and Labour for,40 mm bore, galvanized steel tubing, medium grade, with all fittings, laid in trenches, complete all as specified and directed.

Materials and Labour for,50 mm bore, galvanized steel tubing, medium grade, with all fittings, laid in trenches, complete all as specified and directed.

Materials and Labour for,80 mm bore, galvanized steel tubing, medium grade, with all fittings, laid in trenches, complete all as specified and directed.

Materials and Labour for,100 mm bore, galvanized steel tubing, medium grade, with all fittings, laid in trenches, complete all as specified and directed.

Materials and Labour for,20 mm bore, galvanized steel tubing, medium grade, with all fittings, fixed complete to walls and ceilings or laid in floors, complete all as specified and directed.

Materials and Labour for,25 mm bore, galvanized steel tubing, medium grade, with all fittings, fixed complete to walls and ceilings or laid in floors, complete all as specified and directed.

Materials and Labour for,40 mm bore, galvanized steel tubing, medium grade, with all fittings, fixed complete to walls and ceilings or laid in floors, complete all as specified and directed.

Materials and Labour for,50 mm bore, galvanized steel tubing, medium grade, with all fittings, fixed complete to walls and ceilings or laid in floors, complete all as specified and directed.

Materials and Labour for,80 mm bore, galvanized steel tubing, medium grade, with all fittings, fixed complete to walls and ceilings or laid in floors, complete all as specified and directed.

Supply and laying, cast iron fittings for spigot and socketed cast iron pipes for water mains upto 150 mm bore,such as 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 and plugs, complete all as specified and directed.

Supply and laying, ductile iron fittings for spigot and socketed pipes such as 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 and plugs, ISI Marked [IS 9523 :2000 (Reaffirmed 2005)], suitable for bore of pipe up to 150 mm, complete all as specified and directed.

Materials and Labour for, joint with rubber or fibre board gasket for galvanized steel flanged pipes and fittings, 80 mm bore,including provision of bolts, nuts, washers and white lead or mineral oil,after taking down existing joint, complete all as specified and directed.

Materials and Labour for, joint with rubber or fibre board gasket for galvanized steel flanged pipes and fittings, 100 mm bore,including provision of bolts, nuts, washers and white lead or mineral oil, after taking down existing joint,complete all as specified and directed.

Materials and Labour for, joint with rubber or fibre board gasket for galvanized steel flanged pipes and fittings, 150 mm bore,including provision of bolts, nuts, washers and white lead or mineral oil, after taking down existing joint, complete all as specified and directed.

Materials and Labour for,run lead joint for cast iron spigot and socket pipes and fittings for water mains ,80 mm bore, including burning out lead joints in position and including removing old lead from site, complete all as specified and directed. NOTE:- Earthwork will be measured and paid seperatly.

Materials and Labour for,run lead joint for cast iron spigot and socket pipes and fittings for water mains ,100 mm bore, including burning out lead joints in position and including removing old lead from site,complete all as specified and directed. NOTE:- Earthwork will be measured and paid seperatly.

Materials and Labour for,run lead joint for cast iron spigot and socket pipes and fittings for water mains ,150 mm bore, including burning out lead joints in position and including removing old lead from site, complete all as specified and directed. NOTE:- Earthwork will be measured and paid seperatly.

Materials and Labour for, push-on flexible joints with rubber gaskets conforming to IS 5382 for centrifugally cast (spun) ductile iron pressure pipes and fittings for water mains, with spigot and socketed ends,80 mm bore, complete all as specified and directed.

Materials and Labour for, push-on flexible joints with rubber gaskets conforming to IS 5382 for centrifugally cast (spun) ductile iron pressure pipes and fittings for water mains, with spigot and socketed ends,100 mm bore, complete all as specified and directed.

Supply and Fix, gun metal globe or gate valves with iron wheel head, screwed both ends for iron pipe 20 mm bore, complete all as specified and directed

Supply and Fix, gun metal globe or gate valves with iron wheel head, screwed both ends for iron pipe 25 mm bore, complete all as specified and directed

Supply and Fix, gun metal globe or gate valves with iron wheel head, screwed both ends for iron pipe 40 mm bore, complete all as specified and directed

Supply and Fix, gun metal globe or gate valves with iron wheel head, screwed both ends for iron pipe 50 mm bore, complete all as specified and directed

Materials and Labour for,straight plain brass ferrules (or connecting screws) screwed both ends for 15 mm bore pipes and fixed,complete all as specified and directed.

Supply and Fix in repairs, cast iron double flanged long type,lever operated, butterfly valve,size 40 mm, PN 4.0, Class 300, with stainless steel shaft, ISI Marked (IS-13095:1991, Reaffirmed 2003),including provision of carbon steel nuts, bolts & washers, rubber gaskets etc., fixed to water mains, complete all as specified and directed.

Supply and Fix in repairs, cast iron double flanged long type,lever operated, butterfly valve,size 50 mm, PN 4.0, Class 300, with stainless steel shaft, ISI Marked (IS-13095:1991, Reaffirmed 2003),including provision of carbon steel nuts, bolts & washers, rubber gaskets etc., fixed to water mains, complete all as specified and directed.

Supply and Fix in repairs, cast iron double flanged long type,lever operated, butterfly valve,size 80 mm, PN 4.0, Class 300, with stainless steel shaft, ISI Marked (IS-13095:1991,Reaffirmed 2003),including provision of carbon steel nuts, bolts & washers, rubber gaskets etc., fixed to water mains, complete all as specified and directed.

Supply and Fix in repairs, cast iron double flanged long type,lever operated, butterfly valve,size 100 mm, PN 4.0, Class 300, with stainless steel shaft, ISI Marked (IS-13095:1991,Reaffirmed 2003),including provision of carbon steel nuts, bolts & washers, rubber gaskets etc., fixed to water mains, complete all as specified and directed.

Supply and Fix in repairs, cast iron double flanged long type,lever operated, butterfly valve,size 150 mm, PN 4.0, Class 300, with stainless steel shaft, ISI Marked (IS-13095:1991,Reaffirmed 2003),including provision of carbon steel nuts, bolts & washers, rubber gaskets etc., fixed to water mains, complete all as specified and directed.

Supply and fix, cast iron sluice valve, size 80 mm bore, Class PN 1.6, long body type, with brass spindle, both ends flanged with holes, ISI Marked (IS 14846-2000), provision of carbon steel nuts, bolts & washers, rubber gaskets etc., with CI wheel, fixed to water mains, including taking down existing unserviceable sluice valve, complete all as specified and directed.

Supply and fix, cast iron sluice valve, size 100 mm bore, Class PN 1.6, long body type, with brass spindle, both ends flanged with holes, ISI Marked (IS 14846-2000), provision of carbon steel nuts, bolts & washers, rubber gaskets etc., with CI wheel, fixed to water mains, including taking down existing unserviceable sluice valve, complete all as specified and directed.

Supply and fix, cast iron sluice valve, size 150 mm bore, Class PN 1.6, long body type, with brass spindle, both ends flanged with holes, ISI Marked (IS 14846-2000), provision of carbon steel nuts, bolts & washers, rubber gaskets etc., with CI wheel, fixed to water mains, including taking down existing unserviceable sluice valve, complete all as specified and directed.

Supply and fix, cast iron double flanged swing check type reflux valve of size 80 mm bore, Class PN 1.6, with vertical seating and integral by-pass arrangement, both ends flanged with holes, ISI Marked (IS-5312: 2004) provision of nuts, bolts& washers, rubber gaskets etc., fixed to water mains, including taking down existing unserviceable reflux valve, complete all as specified and directed.

Supply and fix, cast iron double flanged swing check type reflux valve of size 100 mm bore, Class PN 1.6, with vertical seating and integral by-pass arrangement, both ends flanged with holes, ISI Marked (IS-5312: 2004) provision of nuts, bolts& washers, rubber gaskets etc., fixed to water mains, including taking down existing unserviceable reflux valve, complete all as specified and directed.

Supply and Fix,ball valves high pressure of PTMT (Minimum weight 142 gms) with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe, 15 mm bore,including taking down existing unserviceable ball valve,complete all as specified and directed.

Supply and Fix,ball valves high pressure of PTMT (Minimum weight 210 gms) with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe, 20 mm bore,including taking down existing unserviceable ball valve,complete all as specified and directed.

Supply and Fix,ball valves high pressure of PTMT (Minimum weight 455 gms) with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe, 25 mm bore,including taking down existing unserviceable ball valve,complete all as specified and directed.

Supply and Fix,ball valves high pressure of PTMT (Minimum weight 690 gms) with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe, 40 mm bore,including taking down existing unserviceable ball valve,complete all as specified and directed.

Supply and Fix,ball valves high pressure of PTMT (Minimum weight 860 gms) with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe, 50 mm bore, including taking down existing unserviceable ball valve,complete all as specified and directed.

Materials and Labour for,making connection of PP-R distribution branch with PP-R main of size 16 to 40 mm bore, by providing and fixing tee including cutting and making fusion joint etc.,complete all as specified and directed.

Materials and Labour for,making connection of PP-R distribution branch with PP-R main of size 50 to 75 mm bore, by providing and fixing tee including cutting and making fusion joint etc.,complete all as specified and directed.

Materials and Labour for, fixing PP-R socket of size 32 mm bore, including taking down existing socket and making fusion joint etc.,complete all as specified and directed.

Materials and Labour for, fixing PP-R socket of size 50 mm bore, including taking down existing socket and making fusion joint etc.,complete all as specified and directed.

Materials and Labour for, fixing PP-R socket of size 63 mm bore, including taking down existing socket and making fusion joint etc.,complete all as specified and directed.

Materials and Labour for, fixing PP-R socket of size 90 mm bore, including taking down existing socket and making fusion joint etc.,complete all as specified and directed.

Cleaning and removing all scale and dirt, etc, from PVC water tanks of capacity not exceeding 250 Litres and from mouths of circulating pipes, etc.,complete all as specified and directed.

Cleaning and removing all scale and dirt, etc, from PVC water tanks of capacity exceeding 250 Litres but not exceeding 500 Litres and from mouths of circulating pipes, etc.,complete all as specified and directed.

Cleaning and removing all scale and dirt, etc, from PVC water tanks of capacity exceeding 500 Litres but not exceeding 1000 Litres and from mouths of circulating pipes, etc.,complete all as specified and directed.

Materials and Labour for, plain rolled mild steel plates of size 1250 mm x 3750 mm and of thickness 3.00 mm as in top cover of PS tank, bend to shape required including necessary cutting, drilling hole etc., fixing with nut , bolts , washers and jointing materials such as lead wood, gasket, black non toxic putty, etc., and including applying two coat of black bituminous lead free paint (Drinking Water Grade) over a coat of red oxide primer internally and two coats of aluminium paint over a coat of red oxide zinc chrome primer externally, including taking down existing unserviceable top cover, complete all as specified and directed.

Taking out silt deposits from PS overhead water reservoir of 9600 Gallons capacity on 12 Metres high staging, removal of silt to a distance n. exceeding 50 Metres away from the periphery of the tank staging base and deposited where directed at a level not exceeding 1.50 Metres including washing down thoroughly the walls, top and bottom of overhead water reservoir and applying evenly lime soda solution and again washing down thoroughly with clear water and including complete draining off of accumulated water inside the reservoir, after complete removal of silt deposits inside the reservoir, complete all as directed. Location: - Pump House No. 1,2,3,4 & 5.

Taking out coagulated sludge from steel sedimentation tank/sump of 1,00,000 Litres capacity, removal of sludge to a distance n. exceeding 50 Metres away from the periphery of the tank and spread where directed, including washing down thoroughly the walls and bottom of sedimentation tank and applying evenly lime soda solution and again washing down thoroughly with clear water and including complete draining off of accumulated water inside the tank/sump, after complete removal of sludge inside the tank/sump, complete all as directed. Location: - Pump House No. 1,2,3,4 & 5.

Taking out silt deposits from RCC overhead water reservoir of 80000 Gallons capacity on 12 Metres high staging, removal of silt to a distance n. exceeding 50 Metres away from the periphery of the tank staging base and deposited where directed at a level not exceeding 1.50 Metres including washing down thoroughly the walls, dome/top and bottom of overhead water reservoir and applying evenly lime soda solution and again washing down thoroughly with clear water and including complete draining off of accumulated water inside the reservoir, after complete removal of silt deposits inside the reservoir, complete all as directed. Location: - Pump House No.2.

Taking out coagulated sludge from semi-underground, RCC sedimentation tank/sump of 1,00,000 Litres capacity, removal of sludge to a distance n. exceeding 50 Metres away from the periphery of the tank and spread where directed, including washing down thoroughly the walls and bottom of sedimentation tank and applying evenly lime soda solution and again washing down thoroughly with clear water and including complete draining off of accumulated water inside the tank/sump, after complete removal of sludge inside the tank/sump, complete all as directed. Location: - Pump House No.1,2,3,4&5.

Material and Labour for applying one coat of synthetic enamel paint on old painted steel and iron surface exceeding 10 cm in width or girth including preparation of surfaces complete all as specified and directed.

Obliterating old writing of any description, n exc 0.1 sq. m, with synthetic enamael paint to match existing work, complete all as specified and directed.

Writing letters or figures (Block,Roman, Italic or Indian) n exc. 30 cm high,complete all as specified and directed.

Materials and Labour for valve pit cover suitable for brick masonry valve pit of size 600 mm X 600 mm X 600 mm (internal dimensions) made out of 3 mm thick MS plate welded with 40 x 5 mm thick FI frame all round including provision of hinges, handles, locking arrangement, ISA 40 x 40x 5 mm frame, fixed on top of existing valve pit by means of hold fast 150 mm long, embedded in PCC 1:2:4 type B1 (Block size 230 X 200 X 100 mm) including applying two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer and including taking down existing unserviceable valve pit cover, complete all as specified and directed.

Materials and Labour for valve pit cover suitable for brick masonry valve pit of size 1000 mm X 1000 mm X 1000 mm (internal dimensions) made out of 3 mm thick MS plate welded with 40 x 5 mm thick FI frame all round including provision of hinges, handles, locking arrangement, ISA 40 x 40x 5 mm frame, fixed on top of existing valve pit by means of hold fast 150 mm long, embedded in PCC 1:2:4 type B1 (Block size 230 X 200 X 100 mm) including applying two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer and including taking down existing unserviceable valve pit cover, complete all as specified and directed.

NIHAR ENTERPRISE