Comprehensive Maintenance of External Water Supply System of Zone III Joshimath incl Auli and Mana under GE 871 EWS

Amount

Excavation in trenches in hard dense soil not exceeding 1.5 metre width and not exc 1.5 metre deep for laying of pipe line and getting out all as specified and directed.

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

Removing surplus soil to a distance nexc. 50 metre and depositing where directed at a level not exceeding 1.5 metre above the starting point all as specified and directed.

Disconnecting 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 4 here-in-before but of size 50 mm bore

All as per Item No 4 here-in-before but of size 40 mm bore

All as per Item No 4 here-in-before but of size 25 mm bore

All as per Item No 4 here-in-before but of size 20 mm bore

All as per Item No 4 here-in-before but of size 15 mm bore

S&F 80 mm bore GI tubing medium grade with all fittings, laid in trenches and all accessories required for completion of work 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 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 No 10 here-in-before but of size 25 mm bore

All as per Item No 10 here-in-before but of size 20 mm bore

All as per Item No 10 here-in-before but of size 15 mm bore

S&F 50 mm bore GI water tubing medium grade with all fittings, laid on wall, floor and ceiling ISI marked including all types of fittings and accessories all as specified and directed.

All as per Item No 16 here-in-before but of size 40 mm bore

All as per Item No 16 here-in-before but of size 25 mm bore

All as per Item No 16 here-in-before but of size 20 mm bore

All as per Item No 16 here-in-before but of size 15 mm bore

Re-laying Including, jointing threading into trenches/wall/floors GI water tubing including all fittings and accessories etc bore of pipe 80 mm, 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 21 here-in-before but of size 50 mm bore

All as per Item No 21 here-in-before but of size 40 mm bore

All as per Item No 21 here-in-before but of size 25 mm bore

All as per Item No 21 here-in-before but of size 20 mm bore

All as per Item No 21 here-in-before but of size 15 mm bore

Dismantling/taking out of old unserviceable gate valve and supply and fixing new Gun metal gate valve/glove valve ISI marked with Iron wheel head screwed both end for GI tubing of size 15 mm dia.

All as per Item No 27 here-in-before but of size 20 mm dia

All as per Item No 27 here-in-before but of size 25 mm dia

All as per Item No 27 here-in-before but of size 40 mm dia

All as per Item No 27 here-in-before but of size 50 mm dia

All as per Item No 27 here-in-before but of size 80 mm dia

Supply & fix GI union 80mm dia ISI marked suitable for GI Pipe medium grade including dismantling and taking down of water supply lines as required at site to arrest the leakage of water supply line including excavation & earthwork, returning filling, removing, cutting & threading all as specified an directed at site.

All as per Item No 33 here-in-before but 50mm dia.

All as per Item No 33 here-in-before but 40mm dia.

All as per Item No 33 here-in-before but 25mm dia.

All as per Item No 33 here-in-before but 20mm dia.

All as per Item No 33 here-in-before but 15mm dia.

All as per Item No 33 here-in-before but nipple 80mm dia 100 mm long.

All as per Item No 33 here-in-before but GI nipple 50mm dia 100 mm long.

All as per Item No 33 here-in-before but GI nipple 40mm dia 100 mm long.

All as per Item No 33 here-in-before but GI nipple 25mm dia 100 mm long.

All as per Item No 33 here-in-before but GI nipple 20mm dia 100 mm long.

All as per Item No 33 here-in-before but GI nipple 15mm dia 100 mm long.

All as per Item No 33 here-in-before but GI sockets 80mm dia.

All as per Item No 33 here-in-before but GI sockets 50mm dia.

All as per Item No 33 here-in-before but GI sockets 40mm dia.

All as per Item No 33 here-in-before but GI sockets 25mm dia.

All as per Item No 33 here-in-before but GI sockets 20mm dia .

All as per Item No 33 here-in-before but GI sockets 15mm dia.

All as per Item No 33 here-in-before but GI elbow 15 mm dia.

All as per Item No 33 here-in-before but GI elbow 20 mm dia .

All as per Item No 33 here-in-before but GI elbow 25 mm dia.

All as per Item No 33 here-in-before but GI elbow 40 mm dia.

All as per Item No 33 here-in-before but GI elbow 50 mm dia.

All as per Item No 33 here-in-before but GI elbow 80 mm dia .

All as per Item No 33 here-in-before but GI tee all equal of size 15 mm dia .

All as per Item No 33 here-in-before but GI tee all equal of size 20 mm dia .

All as per Item No 33 here-in-before but GI tee all equal of size 25 mm dia.

All as per Item No 33 here-in-before but GI tee all equal of size 40 mm dia.

All as per Item No 33 here-in-before but GI tee all equal of size 50 mm dia .

All as per Item No 33 here-in-before but GI reducer socket 20 mm/15 mm dia .

All as per Item No 33 here-in-before but GI reducer socket 25 mm/15 mm dia.

All as per Item No 33 here-in-before but GI reducer socket 40 mm/15 mm dia.

All as per Item No 33 here-in-before but GI reducer socket 50 mm/15 mm dia.

All as per Item No 33 here-in-before but GI reducer socket 25 mm/20 mm dia .

All as per Item No 33 here-in-before but GI reducer socket 40 mm/20 mm dia .

All as per Item No 33 here-in-before but GI reducer socket 50 mm/20 mm dia .

All as per Item No 33 here-in-before but GI reducer socket 40 mm/25 mm dia .

All as per Item No 33 here-in-before but GI reducer socket 50 mm/25 mm dia.

All as per Item No 33 here-in-before but GI plug of size 15 mm dia.

All as per Item No 33 here-in-before but GI plug of size 20 mm dia .

All as per Item No 33 here-in-before but GI plug of size 25 mm dia .

All as per Item No 33 here-in-before but GI plug of size 40 mm dia.

All as per Item No 33 here-in-before but GI plug of size 50 mm dia.

Repair of service water tanks leakage from inlet pipe and connected to float valve by removing the short peace of pipe/barrel nipple from the RCC/PVC service tanks and replace the same and arrest the water leakage by using the water proofing material.

Supply and fixing in repairs of ball valves high pressure of PTMT with epoxy coated aluminum rod and high density plastic ball screwed for iron pipe and fixed on 25 mm dia of pipe (minimum weight 455 gms) ISI marked all as specified and directed

All as per Item No 77 here-in-before but of size 20 mm dia of pipe (minimum weight 210 gms)

All as per Item No 77 here-in-before but of size 15 mm dia of pipe (minimum weight 142 gms)

M&L for construction of PCC block walling valve pit of size 1200mm x 1200mm x 1200mm (internal dimensions) with precast cement concrete block walling 200 mm thick in PCC 1:3:6 type-C-1 using 20mm graded crushed stone aggregate in CM (1:4) and 10 mm thick plastering in CM 1:4 on internal and external surfaces with and including 40x40x6 mm mild steel angle iron frame and 3 mm thick MS sheet cover with locking arrangement and 1 No, 50 mm size 4 lever lock with key in duplicate of make : Navtal or equivalent, including painting to steel and iron surfaces with two coats of black bituminous paint over a coat of red oxide primer including excavation & earthwork in any type of strata all as specified and directed.

All as per item No 80 above but valve pit of size 900mm x 900mm x 900mm.

All as per item No 80 above but valve pit of size 600mm x 600mm x 600mm.

All as per item No 80 above but valve pit of size 450mm x 450mm x 450mm.

M&L for PCC 1:4:8 type D2 (using 40mm graded stone aggregate) as in foundation filling & mass concrete for staging of MS tank/box repair to floor, path including necessary form work and fair finishing without using extra cement all as specified including demolition of existing.

M&L cement concrete 1:2:4 type B-1 using 20mm graded crushed stone aggregate as in coping, bounded stone including necessary form work and fair finished surface without using extra cement all as specified and directed including demolition of existing.

M&L for rendering 15mm thick in cement mortar 1:4 on stone massonary surface other than fair face of brick work, finishing the surfaces even and fair without using extra cement all as specified and directed.

M&L for 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 including pad lock and providing suitable lifting handle for each cover/valve pit including cutting, drilling, bending all as specified and directed.

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

M&L for cleaning of Water Storage tank of 10,000 ltrs capacity of complete all as specified and directed comprising of the following works :- (a) Wash out the complete tank by opening wash out valves and dewatering the left out water from tank manually or by pumping out through pump set (b) Taking out complete sludge/mud from the tank and removing and storing the same at low level area earmarked by Engr - in Charge (c) Cleaning of inner surface of walls of tank 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) The empty Water storage 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 for entire satisfaction of Engr-in-Charge

All as per Item No 89 here-in-before but of Capacity 25000 ltrs

All as per Item No 89 here-in-before but of Capacity 50000 ltrs

M&L in replacement for (10000 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 and replacement of 80mm bore medium grade 6m length with water drop hole & accessories for supply of water into the chamber complete all as directed by Engr-in charge (a) Filter gravels (pebbles) - 0.7 Cum (b) -do- but size 3/41.5'' -0.45 Cum (c ) -do- but size 1/2''-3/4'' - 0.15 Cum (d) -do- but size 1/4'' - 3/8'' -0.15 Cum (e) -do- but size 1/8'' - 1/4'' - 0.25 Cum (f) Fine sand op size - 2.5 Cum

Amit Engineering

Bedi Refrigeration Works