CLEANING OF OH AND UG WATER SUMPS, SEWAGE SUMPS, EXTERNAL PAINTING OF RCC AND IRON STRUCTURES, PAINTING OF PLANTS AND EQPTS IN E AND M INSTALLATIONS AS PER COLOUR CODE INCLUDING SOME ALLIED WORKS AT BARRACKPORE UNDER GE BARRACKPORE

Amount

M&L for cleaning of existing RCC/PS/SMC over head tank (height of staging upto 20 mtr from normal ground level) of capacity 150000 Gallon at Pump house No -3 complete having using the following steps during course of tank cleaning :- (a) Dewatering of water by operating valves of any type and complete drain out of water from tank with the help of buckets and dewatering pumps (if required) complete. (b) Cleaning of entire inside portion of Over head tank and removal of algae formation (in any) and iron sluge/slurry removal complete. (c) Scrubbing of the walls and floors and removal of all scaling algae and other formed particales on internal surfaces of the tank completely. (d) Removal of all sludge/muddy water from the tank and complete cleaning of loose particles of any nature (second time cleaning). (e) Complete cleaning of of inner surface of tank with fresh water and to be shown to the site executives before re-filling of water to the tank and compelte satisfaction of Engr-in-charge. (f) Arresting/making good to the any minor repair (if any required) by applying cement mortar or chemical and to ensure No lekages from the over head tank. (NOTE:- (i) Rates deemed to be included for writing date of cleaning with sunthetic enamel paint having height of letters not less than 100mm with CA No and name of Contractor) (ii) All safety equipments required and necessary insurance for safety of working labour to execute the work is responsible of the contractor without any extra cost..

All as per item No 1.00 here in above but overhead tank of capacity 100000 gallon (454000 ltr), at pump house No 01 , 02 and 04 complete all as specified and directed.

All as per item No 1.00 here in above but overhead tank of capacity 50000 gallon (227000 ltr), at pump house No 05 and 06 complete all as specified and directed

All as per item No 1.00 here in above but overhead tank of capacity 10000 gallon (45400 ltr), at Jafarpur range pump house complete all as specified and directed.

All as per item No 1.00 here in above but inside semi underground sump of any depth of capacity 300000 gallon (1362000 LTR), at Pump house No 5 complete all as specified and directed.

All as per item No 1.00 here in above but inside semi underground sump of any depth of capacity 200000 gallon (908000 LTR), at Pump house No 4 complete all as specified and directed.

All as per item No 1.00 here in above but inside semi underground sump of any depth of capacity 5000 gallon (22700 LTR), at any height and location complete all as specified and directed.

Cleaning and complete removal of all scales and dirts, silts etc, from tank and from mouth of circulating pipes etc for capacity of tank exceeding 500 litre & not exceeding 1000 litre including written as "Tank clean on DD-MM-YYYY" on the body of the tank with white paint complete all as specified and directed .

S&F of ball valves high pressure of PTMT with epoxy coated Aluminium rod & highdensity plastic ball screwed for iron pipe and fixed. (Minimum weight 15mm-142gms/ 20 mm - 210 gms . / 25mm- 455gms/ 40mm - 690 gms) such as gasket, nuts, bolts, washer etc after and including taking out old unserviceable valve of following size complete:-

Ball valve of size 20 mm

Ball valve of size 25 mm

S&F for sluice valve of size 150 mm , both end flanged with CI operating wheel, brass spindle etc as per latest IS specification, Class PN - 1.6 including necessary jointing and jointing materials such as gasket, nuts, bolts, washer etc after and including taking out old unserviceable sluice valve complete all as specified and directed.

Fixing only 100mm dia sluice valve both end flanged with CI operating wheel, brass spindle etc as per latest IS specification, including necessary jointing and jointing materials such as gasket, nuts, bolts, washer etc after and including taking out old unserviceable sluice valve complete all as specified and directed. (Note: 100mm dia sluice valve will be issued under Sch 'B' as free for fixing)

Construction of valve pit chamber with brick masonary with sub class 'B' bricks (one brick thick) in cement mortar (1:6) and necessary PCC (75mm thick) type D2 (1:4:8) as in foundation and 15mm thick plastering on brick work in cement mortar (1:4) including necessary earthwork etc work having internal dimension 60cm x 60cm x 60cm and providing of 3mm thick MS sheet cover duly hinged on 40mm x 40mm x 6mm angle iron frame and embedded on top of chamber by minimum 4 Nos MS hold fast. Necessary locking arrangement shall be provided to the sheet cover for safety. The steel surfaces shall be painted with two coats black bituminous paint over a coat of anti corrosive red oxide primer complete after and including demolition of old valve pit chamber all as specified and directed.

Construction of valve pit chamber with brick masonary with sub class 'B' bricks (one brick thick) in cement mortar (1:6) and necessary PCC (75mm thick) type D2 (1:4:8) as in foundation and 15mm thick plastering on brick work in cement mortar (1:4) including necessary earthwork etc work having internal dimension 90cm x 90cm x 90cm and providing of 3mm thick MS sheet cover duly hinged on 40mm x 40mm x 6mm angle iron frame and embedded on top of chamber by minimum 4 Nos MS hold fast. Necessary locking arrangement shall be provided to the sheet cover for safety. The steel surfaces shall be painted with two coats black bituminous paint over a coat of anti corrosive red oxide primer complete after and including demolition of old valve pit chamber all as specified and directed.

Construction of valve pit chamber with brick masonary with sub class 'B' bricks (one brick thick) in cement mortar (1:6) and necessary PCC (75mm thick) type D2 (1:4:8) as in foundation and 15mm thick plastering on brick work in cement mortar (1:4) including necessary earthwork etc work having internal dimension 120cm x 120cm x 120cm and providing of 3mm thick MS sheet cover duly hinged on 40mm x 40mm x 6mm angle iron frame and embedded on top of chamber by minimum 4 Nos MS hold fast. Necessary locking arrangement shall be provided to the sheet cover for safety. The steel surfaces shall be painted with two coats black bituminous paint over a coat of anti corrosive red oxide primer complete after and including demolition of old valve pit chamber all as specified and directed.

Excavation in trenches in soft / loose soil not exceeding 1.5 metre wide and not exc 1.5 metre in depth and getting out for taking out / laying of GI / CI pipe line and making bottom surfaces of excavation leveled and to a gradient complete all as specified and directed .

Returning, filling in trenches with excavated soil including spreading, levelling, watering and well ramming in layers not exceeding 25 cm complete all as specified and directed .

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

S&F of 50mm dia gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe or for unions pipes and fixed after and including taking up/ down old unserviceable one complete all as specified and directed .

S&F of 40mm dia gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe or for unions pipes and fixed after and including taking up/ down old unserviceable one complete all as specified and directed .

S&F of 25mm dia gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe or for unions pipes and fixed after and including taking up/ down old unserviceable one complete all as specified and directed .

S&F of 20mm dia gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe or for unions pipes and fixed after and including taking up/ down old unserviceable one complete all as specified and directed .

S&F for 25mm dia GI tubings (medium grade) with all fittings laid in trenches after and including taking down/up old steel tubing and connection complete all as specified and as directed. (Note: excavation of earth work shall be measured and paid seperately).

S&F for 20mm dia GI tubings (medium grade) with all fittings laid in trenches after and including taking down/up old steel tubing and connection complete all as specified and as directed. (Note: excavation of earth work shall be measured and paid seperately).

S&F for 15mm dia GI tubings (medium grade) with all fittings laid in trenches after and including taking down/up old steel tubing and connection complete all as specified and as directed. (Note: excavation of earth work shall be measured and paid seperately).

M&L for desludging of sewage collection sump by taking out sewer slurry using buckets and pulleys of total depth 7.50 mtr including depositing at a distance not exceeding 500 mtr from starting point and taking out serviceable/unserviceable non clog sewage submersible pump motor carefully and re-install the same after thorough cleaning, overhauling and servicing with removing of all sewage sludge complete testing and commissioning complete all as specified and directed. ( Note- Maximum storage capacity of sewage sump will be 10000 Gln)

Supply and charging of new life MnO₂ compound as per site requirement complete in all respect after and including taking out (unloading) the old catalyst (MnO2) from oxidation chamber with proper care complete and cleaning of pipes, Butterfly valve etc, of any capacity, flow, height by opening the manhole cover disconnection and including removing the waste material up to 50 mtr away from site spreading and leveling complete all as specified and directed .

S&F of mild steel nuts, bolts with washer as per site requirement after and including taking down old nuts, bolts etc complete all as specified and directed

S&F of gasket as per site requirements after and including taking down old gasket complete all as specified and directed.

S&F of 80mm dia CI Foot Valve Strainer (Flange Type) with screwed both ends for iron pipes after and including taking out old unserviceable sluice valve complete all as specified and directed.

Taking out (unloading) all old rusted and muddy filter media like sand, gravels from Iron removal filter vessel with proper care complete and cleaning of pipes, Butterfly valve etc, of any capacity,flow, height by opening the manhole cover disconnection and including removing of old unsv filter media, sludge, waste material up to 50 mtr away from site spreading and leveling complete all as directed but Supply & fixing of new filter media (Sand & Gravels) size 3/4"x1/2", 1/2" X1/4", 1/4" X 1/8", 1/8" X 1/6") complete as per site requirement in all respect, all as specified and directed by Eng-in-charge.

S&F for LDPE double nut type strainers of iron removal plant as per site requirement after and including taking down old unserviceable strainers complete all as specified and directed .

M&L for preparing of outer surface (old) of iron removal filter plant of pressure feed filtration plant comprising of oxidation plant, iron removal plant, brine solution, softening plant of 10000 gallon capacity including all frontal pipes etc located at Pump House and applying one coat of synthetic enamel paint (as per existing color) with spray painting machine including arrow marking on inlet and outlet pipe line complete all as specified and directed by Engineer-in-Charge.

M&L for preparing of outer surface (old) of iron removal filter plant of pressure feed filtration plant comprising of oxidation plant, iron removal plant, brine solution, softening plant of 20000 gallon capacity including all frontal pipes etc located at Pump House and applying one coat of synthetic enamel paint (as per existing color) with spray painting machine including arrow marking on inlet and outlet pipe line complete all as specified and directed by Engineer-in-Charge.

M&L for preparing of inner surface (old) of iron removal filter plant of pressure feed filtration plant comprising of oxidation plant, iron removal plant, brine solution, softening plant of 10000 gallon capacity located at Pump house and applying one coat of anti-corrosive black bituminous paint suitable for drinking water complete all as specified and directed by Engineer-in-Charge.

M&L for preparing of inner surface (old) of iron removal filter plant of pressure feed filtration plant comprising of oxidation plant, iron removal plant, brine solution, softening plant of 20000 gallon capacity located at Pump house and applying one coat of anti-corrosive black bituminous paint suitable for drinking water complete all as specified and directed by Engineer-in-Charge.

S&F of butterfly valve of size 150 mm dia after and including taking out unserviceable valve complete all as specified and directed.

S&F of butterfly valve of size 125 mm dia after and including taking out unserviceable valve complete all as specified and directed.

S&F of butterfly valve of size 100 mm dia after and including taking out old unserviceable valve complete all as specified and directed.

Supply and lay 100mm dia MS Pipes heavy grade with all fittings laid in floors or fixed to walls and ceilings etc after and including taking out old unserviceable valve complete all as specified and directed.

Supply and lay MS Pipes heavy grade 150 mm dia with all fittings laid in floors or fixed to walls and ceilings etc after and including taking out old unserviceable valve complete all as specified and directed.

S&F of 15mm dia bib tap standard of PTMT any colour high pressure screwed for iron pipe and fixed after and including taking out old unserviceable valve complete all as specified and directed.

S&F of 500 Ltr capacity rotational moulded polyethylene water storage tanks (cylindrical vertical with closed top) multi layer, (three layer) ISI Marked hoisted and fixed in position with cover of tank with its locking arrangement, making hole for inlet, outlet and overflow connection with and including 20mm dia ball valve high pressure of PTMT (minimum weight 210 gms) including dismantling / taking down old unserviceable PVC water tank, ball valve etc complete all as specified in SSR Part-I and directed.

M&L PCC (1:2:4) type B-1 (20 mm graded stone aggregate) as in foundation including necessary form work and similar work complete all as specified and directed.

Supply, commisiong & testing ultrasonic water level indicator model :PALC Make -I , Incliding top mounted, non-contact ultrasonic level transmitter,level indicating controlling box including system incorporated digital stage signal, high&low alarm,pump automation etc.all complete but without wire from transmitter to controlling box after and including taking down old unserviceable water level indicator complete all as specified and directed.

S&F of three core, 0.75 sqmm copper PVC Sheathed cable from transmitter to controlling box complete all as specified and directed.

S&F of mild steel anchoring chain of 8 mm dia for holding pump in true/original position from cross bar near roof after and including taking down old unserviceable anchoring chain complete all as specified and directed.

M&L for earthing with glavanised steel earth plate electrode of size 60cmX60cmX6mm thick buried directly in ground (earth pit not less than 2.25 m deep below the ground level) with top edge of the plate not less than 1.5m below normal ground level, connected to the galvanised earth lead by means of bolts, nuts, check nuts and washers of galvanised iron or steel using GI or steel wire 4mm dia as earthing lead as shown in electrical plate No.3 of SSR Part-I connected to earthing test point all specified or indicated including testing on completion including necessary excavation and earth work in soft/loose soil, returning filling, disposal of surplus soil, earth pit in PCC (1:3:6) type C-1 using 20mm graded stone aggregate pit, funnel, 20mm dia GI medium grade watering pipe , 15mm dia GI medium grade earth lead protection pipe and pre-cast earth pit cover 50mm thick made of RCC (1:1.5:3) type A-1 duly reinforced with 8mm dia TMT bar @150c/c both ways, one lifting handle made out of 10mm dia TMT bar 250 mm long embedded in cover slab and cover, wire, copper lugs etc mesh, charcoal and common salt in alternate layer of 15 cm thick complete all as specified and directed. (Note: Galvanised iron wire of 4mm dia upto 7.5m long including testing is deemed to be included with quoted rate).

S&F for pressure gauge with fittings as per site requirement after and including taking down old gauge complete all as specified and directed.

S&F of 100mm dia non-return (Reflux) valve gun metal working parts, as per IS-5312, including jointing with rubber gasket, bolts, nuts, washer etc after and including taking down/up old valve complete all as specified and directed.

SENCO

M/S. ARUP KUMAR DEY

BANERJEE ENTERPRISE

S..S. ELECTRIC CO.

CHATTERJEE CONSTRUCTION AND SUPPLIERS