Comprehensive maintenance of external water supply system at Rudraprayag, Gaucher and Narendra Nagar under GE 871 EWS

Amount

Narendra Nagar Area

Excavation in trenches in hard/dense soil not exceeding 1.5 mtr width and not exc 1.5 mtr deep for laying of pipe etc and getting out all as specified.

Returning, filling including spreading leveling watering and well ramming in layers not exceeding 25 cm thick hard soil all as specified and directed by Engr-in-charge.

Removing excavated soil to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed

Dismantling and taking out old existing unserviceable GI pipe of size 80 mm dia from trenches/ under floor, roads, paths or from walls/poles/ducts all as specified and directed (Note:- Excavation & earth work shall be measured and paid for separately under respective item of this schedule)

All as per Item No 5 here-in-before but of size 50 mm bore

All as per Item No 5 here-in-before but of size 40 mm bore

All as per Item No 5 here-in-before but of size 25 mm bore

All as per Item No 5 here-in-before but of size 20 mm bore

S&F 80 mm bore GI tubing medium grade with all fittings, laid in trenches, including flanges after a interval of every 03 metre length duly welded, nuts & bolts gaskets and all accessories including union, nipple, socket, elbow or reducer etc required for completion of work all as specified and directed. Make : Jindal/Tata/Prakash Surya.

All as per Item No 10 here-in-before but of size 50 mm bore

All as per Item No 10 here-in-before but of size 40 mm bore

All as per Item No10 here-in-before but of size 25 mm bore

All as per Item No10 here-in-before but of size 20 mm bore

Dismantling/taking out of old U/s gate valve and supply and fixing Gun metal gate valve/glove valve ISI marked with Iron wheel head screwed both end for GI tubing of following sizes :- Make : Zoloto/Leader/L&T/Kirloskar

All as per Item No 15 here-in-before but of size 25 mm bore

All as per Item No 15 here-in-before but of size 40 mm bore

All as per Item No 15 here-in-before but of size 50 mm bore

M&L in replacement of 3mm thick MS sheet top cover over the sluice valve pit/filtration tank, made with MS angle iron/channel and MS sheet with locking arrangement incl pad lock and providing suitable lifting handle for each over/valve pit including cutting, drilling, bending etc complete all as specified at site

M&L in replacement of Gun metal globe or gate valves, with iron wheel head , screwed both ends for iron pipes of size 80 mm dia with washers ,all as specified and directed. Make : Kirloskar/leader/Kartar.

Supply and install in replacement of cast iron sluice valve of size 80 mm bore class-I PN-1:6 with gun metal spindle both end flanged complete with all fitting all as specified and directed by Engr in Charge. Make : Kirloskar/leader/Kartar.

M&L for cleaning of complete water tank of 25,000 gln capacity with chamber complete as specified and directed by Engr-in-Charge, comprising the following works :- (a) Dewatering of left out water from the tank manually or by pumping out through pump set (b) Taking out complete sludge/mud from the tank and removing/storing the same at low level are earmarked by Engr-in-Charge within 50 m radius (c ) Cleaning inner surface of wall and bottom of tank with the help of wire brushes, scrapper and broom for cleaning of sludge from walls/floors (d) Washing of inner walls of tank by bleaching powder solution (e) Repairing of unserviceable angle/MS Sheet of sedimentation tank with welding work where necessary complete all as per site requirement (f) The empty sedimentation tank shall be first cleaned with fresh water twice and there after cleaned with fresh water sterililsed with 2% solution of potassium permagnate and writing location, capacity and date of cleaning with white paint firm and hand written over a black plate with synthetic enamel paint etc complete for entire satisfaction of Engr-in-Charge

Testing of water for chemical test and bacterial test complete report in respect of water sample of Rudraprayag station from IIT Roorkee or any NIT or any NABL approved laboratory.

Taking out and refixing the Centrifugal pump from site and carry out to workshop and complete over hauling to pump incl replacement of bearing, impeller, shaft bushing ,nut bolts welding grinding and machine work to pump set of capacity 3 HP complete all as directed by Engineer-in-Charge.

Dismantling and Refixing the Motor from site taking out worn winding of motor of capacity 3 HP carefully and rewinding the same with existing size of super enamelled copper winding wire ,including necessary varnishing and insulating material baking etc, transportation to workshop and back at site complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement of DOL starter with single phase preventer for motor pump of capacity 3 HP at site complete all as directed by Engineer-in-Charge Make : L&T, Crompton, Kirloskar

M&L for plain cement concrete Type C2 1:3:6 (40mm graded aggregate) in foundations, filling and mass concrete required at site all as specified and directed.

Rudraprayag & Gaucher Area

Excavation in trenches in hard/dense soil not exceeding 1.5 mtr width and not exc 1.5 mtr deep for laying of pipe etc and getting out all as specified.

Returning, filling including spreading leveling watering and well ramming in layers not exceeding 25 cm thick hard soil all as specified and directed by Engr-in-charge.

Removing excavated soil to a distance not exceeding 50 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified and directed

Dismantling and taking out old existing unserviceable GI pipe of size 80 mm dia from trenches/ under floor, roads, paths or from walls/poles/ducts all as specified and directed (Note:- Excavation & earth work shall be measured and paid for separately under respective item of this schedule)

All as per Item No 32 here-in-before but of size 50 mm bore

All as per Item No 32 here-in-before but of size 40 mm bore

All as per Item No 32 here-in-before but of size 25 mm bore

All as per Item No 32 here-in-before but of size 20 mm bore

S&F 80 mm bore GI tubing medium grade with all fittings, laid in trenches, including flanges after a interval of every 03 metre length duly welded, nuts & bolts gaskets and all accessories including union, nipple, socket, elbow or reducer etc required for completion of work all as specified and directed. Make : Jindal/Tata/Prakash Surya.

All as per Item No 37 here-in-before but of size 50 mm bore

All as per Item No 37 here-in-before but of size 40 mm bore

All as per Item No 37 here-in-before but of size 25 mm bore

All as per Item No 37 here-in-before but of size 20 mm bore

Dismantling/taking out of old U/s gate valve and supply and fixing Gun metal gate valve/glove valve ISI marked with Iron wheel head screwed both end for GI tubing of following sizes :- Make : Zoloto/Leader/L&T/Kirloskar

All as per Item No 42 here-in-before but of size 25 mm bore

All as per Item No 42 here-in-before but of size 40 mm bore

All as per Item No 42 here-in-before but of size 50 mm bore

M&L in replacement for (20000 ltr sand filter tank ) filling the following filter media in the filter bed duly cleaned and washed with 5% concentrated solution of NaOH complete including cleaning of tank as per standard procedure all as directed by Engr-in charge (a) Filter gravels (pebbles) 1.5'' -2'' -1.4 Cum (b) -do- but size 3/41.5'' -0.9 Cum (c ) -do- but size 1/2''-3/4'' - 0.3 Cum (d) -do- but size 1/4'' - 3/8'' -0.3 Cum (e) -do- but size 1/8'' - 1/4'' - 0.5 Cum (f) Fine sand of size 1/32'' -1/16'' -5 Cum

M&L in replacement of 3mm thick MS sheet top cover over the sluice valve pit/filtration tank, made with MS angle iron/channel and MS sheet with locking arrangement incl pad lock and providing suitable lifting handle for each over/valve pit including cutting, drilling, bending etc complete all as specified at site

M&L in replacement of Gun metal globe or gate valves, with iron wheel head , screwed both ends for iron pipes of size 80 mm dia with washers ,all as specified and directed. Make : Kirloskar/leader/Kartar.

Supply and install in replacement of cast iron sluice valve of size 80 mm bore class-I PN-1:6 with gun metal spindle both end flanged complete with all fitting all as specified and directed by Engr in Charge. Make : Kirloskar/leader/Kartar.

M&L for cleaning of complete water tank of 25,000 gln capacity with chamber complete as specified and directed by Engr-in-Charge, comprising the following works :- (a) Dewatering of left out water from the tank manually or by pumping out through pump set (b) Taking out complete sludge/mud from the tank and removing/storing the same at low level are earmarked by Engr-in-Charge within 50 m radius (c ) Cleaning inner surface of wall and bottom of tank with the help of wire brushes, scrapper and broom for cleaning of sludge from walls/floors (d) Washing of inner walls of tank by bleaching powder solution (e) Repairing of unserviceable angle/MS Sheet of sedimentation tank with welding work where necessary complete all as per site requirement (f) The empty sedimentation tank shall be first cleaned with fresh water twice and there after cleaned with fresh water sterililsed with 2% solution of potassium permagnate and writing location, capacity and date of cleaning with white paint firm and hand written over a black plate with synthetic enamel paint etc complete for entire satisfaction of Engr-in-Charge

S&F in replacement of galvanised iron flange on existing pipe of 80mm bore (02 Nos in each pipe) with nuts, bolts and washers complete all as specified and directed.

Testing of water for chemical test and bacterial test complete report in respect of water sample of Rudraprayag station from IIT Roorkee or any NIT or any NABL approved laboratory.

Taking out worn winding of Submersible pump motor starter of capacity 5 HP carefully and rewinding the same with existing size of super enamelled copper winding wire ,including necessary varnishing and insulating material baking etc, transportation to workshop and back at site complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement of starter for Submersible motor pump with single phase preventer of capacity 5 HP at site complete all as directed by Engineer-in-Charge Make : L&T, Crompton, Kirloskar

M&L for plain cement concrete Type C2 1:3:6 (40mm graded aggregate) in foundations, filling and mass concrete required at site all as specified and directed.

Amit Engineering

AKANSHA.ASSOCIATES