REPAIR AND MAINT OF SEWAGE SUMP, STP, RESERVOIR, SEWAGE PIPE LINES, PUMP HOUSES, SWIMMING POOL AND OTHER CONNECTED WORKS FOR VARIOUS PUMP HOUSES AT BARRACKPORE UNDER GE BARRACKPORE

Amount

M&L for emptying/Desludging of sewage collection sump, sewage seperation tank, O nad G tank, equalisation tank receiving sump,tube settler, MBBRs etc for capacity 144 KLD sewage plant by taking out sewer slurry/mud water using buckets and pulleys/pump etc. including depositing at a distance not exceeding 500 mtr from starting point for civil work & repairing and make it crack proof and for taking out and changing unserviceable diffusers line,taking down of pipe line ,valves and other related works complete all as specified and directed.

All as per Item No 1.00 here in before but for 110 KLD STP complete all as specified and directed.

M&L for emptying/Desludging of sewage collection sump,Oil and grease tank,equalisation tank receiving sump, etc for capacity 350 KLD suge plant by taking out sewer slurry/mud water using buckets and pulleys including depositing at a distance not exceeding 500 mtr from starting point for taking out UNSV pipe line, diffuser,control cable,automatic sensor and refill servisible media. etc. complete all as specified and directed.

M&L for disassembling, transportation ,repairing of influent transfer pump with motor of capacity 1HP (3PH) automatic type with motor winding,change of shaft,bearing,flap,base frame.suction discharge ,valve etc suitable for of following capacity of STP complete all as specified and directed.

STP of capacity 144 KLD

STP of capacity 110 KLD

M&Lfor dis assembling, transportation, repairing of 7.5 HP 3 PH air blower automatic type with motor winding,overhauling of piston cylinder system,change of shaft,piston ring,bearing,base frame.suction discharge ,valve,safety cage, etc suitable of following capacity of STP complete all as specified and directed.

STP of capacity 144 KLD

STP of capacity 110 KLD

M&L for dis assembling, transportation, servising/repairing of submersible pump with motor of capacity 7.5 HP (3PH) automatic type with motor winding,bearing,suction discharge, suitable for 350 KLD RCTC STP submersible pump complete all as specified and directed.

M&L for dis assembling, transportation, repairing of pump with motor of capacity 7.5 HP (3PH) automatic type with motor winding,change of shaft,bearing,flap,suction discharge ,valve etc suitable of following capacity of STP complete all as specified and directed.

STP of capacity 144 KLD

STP of capacity 110 KLD

M&L for change of Bar screen and fine bubble diuser for sewaage separation for following capacity including taking down old one complete all as specified and directed.

STP of capacity 144 KLD

STP of capacity 110 KLD

STP of capacity 350 KLD

M&L for change of lamella plate inside the clarifier zone for fine bubble diffuser at STP of 350 KLD. including taking down old one complete all as specified and directed.

Supplying, laying and fixing of cable 4 core 1.5 Sqmm shielded type including cable protection arrangement after taking down old unserviceable cable complete all as specified and directed.

Supplying, laying and fixing of cable 4 core 2.5 Sqmm shielded type including cable protection arrangement after taking down old unserviceable cable complete all as specified and directed.

Supplying and fixing of float sensor and connector for automatic operation of four Nos Pump having max capacity 7.5 HP including taking down old unserviceable system for following plants:-

STP of capacity 144 KLD

STP of capacity 110 KLD

STP of capacity 350 KLD

Supplying, laying and fixing of cable 2 core 1.5 Sqmm for float sensor connection after taking down old unserviceable cable complete all as specified and directed.

M&L for STP recommissioning activity still sludge growth along with one month weekly inspection for biological activity and provide food for biological grouth of bacteria like cow dung/euria etc as required and finally treated water lab report submission for following plants.

STP of capacity 144 KLD

STP of capacity 110 KLD

M&L for servicing/repairing of Filterpress of size 18''X 18" suitable for pressure of 4-6 Kg /Sq cm including 1 HP motor hydraulic type including changing of bearing so that filterpress can convert efficiently bio degraded sewage to dry cake including taking down old unserviceable one complete all as specified and directed.

M&L for charges for servicing/ repairing of Filterpress positive displacement type feed pump screw type including motor repair, coupling replacement, base frame change, suction discharge connector, valve change including taking down old unserviceable one complete all as specified and directed.

S&F in repairs of dosing pump @6 LPH injector, shaft,valve, gasket, knob, regulator, delivery pipe including change of solution tank 200 Ltrs capacity complete all as specified and directed.

M&L for commissioning of automatic panel for two Nos submersible pump, two Nos influent transfer pump, two Nos filter press pump, two Nos blower dosing pump etc including change of defective controller and change of burned wiring for STP of capacity 110-350KLD including taking down old unserviceable one complete all as specified and directed.

M&L for unscrewing of nuts and bolts and opening up from side/top of MBBR1, MBBR2 (appx size 5 mtrX1.6 mtrX1.6 mtr each) and tube settler appx size( appx 2x2 Sq mtr top opening and 3 mtr height) including all other structural support/structural part of sewage treat plant including tubes inside for painting. Surface preparing of inner surface (old) and applying one coat of acid resistant paint, surface preparation of outer surface and painting two coats of synthetic enamel paint by spray painting over a coat of red oxide primer of MBBRs, tube settler and other structural part of STP 144 KLD and STP 110 KLD including painting of outer surface iron stair, railing, hand rail pipe line exposed to air all as specified and directed.

M & L heavy duty load Stain less steel chain suitable to hange Non clog submersible sewage pump of 8-20 mm thick link to sustain the load of 2 Ton complete including taking out old unserviceable safety chain of any type all as specified and directed

M&L for replacement of Media suitable for bacteria grouth all as specified and directed by the Engr-in-Charge.

M & L for Collection of Treated Sewage water sample (quarterly) from Sewage Treatment Plants MAP pockets and rctc pocket and carry out following test from Govt Laboratory or any NABL approved laboratory complete all as specified and as directed by Engr-in-Charge. (a) B.O.D. (Biochemical Oxygen Demand) (b) C.O.D. (Chemical Oxygen Demand) (c) T.S.S. (d) Residual free chlorine, mg/ltr (e) PH value, Oil and Grease (f) Total Coli from Organisms per 100 M (MPN) (g) T O C (Total Organic Carbon)

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/UNSV non clog pump motor carefully and re-install the same after thorough cleaning, overhauling and servicing including change of defective parts. Also removing of all sewage sludge complete testing and commissioning all as directed by Engr-in-charge. (Note- Maximum storage capacity of sewage sump will be 10000 Gln)

M & L for writing letters or figures (Block, roma, Italic or Indian) etc shall be painted with thick paint, so that stand out boldly and solidly without showing signs of brush marks complete until the desired result is obtained of size not exceeding 30 cm complete all as specified and directed.

Supply, lowering, assembling and fixing in position 25 mm dia, ERW. Heavy duty, MS black pipe of 6.35 mm wall thickness, plain ended arc welding each joints including taking down old unserviceable pipe complete all as specified and directed

Supply, lowering, assembling and fixing in position 32 mm dia, ERW. Heavy duty, MS black pipe of 6.35 mm wall thickness, plain ended arc welding each joints including taking down old unserviceable pipe complete all as specified and directed.

Supply, lowering, assembling and fixing in position 40 mm dia, ERW. Heavy duty, MS black pipe of 6.35 mm wall thickness, plain ended arc welding each joints including taking down old unserviceable pipe complete all as specified and directed.

Supply, lowering, assembling and fixing in position 50 mm dia, ERW. Heavy duty, MS black pipe of 6.35 mm wall thickness, plain ended arc welding each joints including taking down old unserviceable pipe complete all as specified and directed

Supply, lowering, assembling and fixing in position 65 mm dia, ERW. Heavy duty, MS black pipe of 6.35 mm wall thickness, plain ended arc welding each joints including taking down old unserviceable pipe complete all as specified and directed.

Supply, lowering, assembling and fixing in position 150 mm dia, ERW. Heavy duty, MS black pipe of 6.35 mm wall thickness, plain ended arc welding each joints including taking down old unserviceable pipe complete all as specified and directed.

S&F in repairs of butter fly valve of 150 mm bore complete with all connecting accessories and confirming to IS 13095 of 150 mm bore complete all as specified

S&F in repairs of butter fly valve of 65 mm bore complete with all connecting accessories and confirming to IS 13095 of 100 mm bore complete all as specified.

S&F in repairs of butter fly valve of 40/32 mm bore complete with all connecting accessories and confirming to IS 13095 of 100 mm bore complete all as specified.

S&F in repairs of butter fly valve of 50 mm bore complete with all connecting accessories and confirming to IS 13095 of 100 mm bore complete all as specified.

S&F in repairs of horizontal check valve/non return valve bronze, screwed both ends of 50/40 mm bore complete all as specified and directed.

S&F in repairs of horizontal check valve/non return valve bronze, screwed both ends of 65 mm bore all as specified and directed.

Taking down existing rusted/worn out MS cross arm, angle, clamps, nuts, bolts,plates and washers and supply and fixing new MS Cross arms, bracings, supports, clamp,plates and back plates fabricated from structural steel section including nuts, bolts, washers, welding, bending cold or hot drilling holes for bolts in any type, shape or as indicated and directed inclusive of one coat of red oxide and one coat of aluminium paint complete all as specified and directed by Engr in charge.

Excavation in trenches for laying under ground cable, foundation and erection of poles and stays in soft/loose soil not exceeding 1.5 meter wide and not exceeding 1.5 meter deep and getting out complete all as specified and directed.

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

Removing surplus excavated materials to a distance not exceeding 50m and depositing where directed at a level not exceeding 1.5m above the starting points as in soft/loose soil all as specified and directed.

M&L for sand cushioning to under ground cable in trenches/existing cable trenches/ducts in layers of 8 cm deep before laying the cable and 15 cm deep including required watering and consolidation after laying and stretching the cable complete all as specified and directed. (Note: Only punned down volume of sand to be measured)

M&L for brick covering with width equal to length of brick as protection to cable with well burnt sub class ‘B’ bricks of size 250mm x 115mm x .75mm laid dry flat 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 with galvanised iron strips of size 32 x 6 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 , 40mm 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 including taking down old unserviceable earthing complete all as specified and directed. (Note: Galvanised iron strip of size 32x6mm upto 7.5m long including testing is deemed to be included with quoted rate).

Material and labour for surface preparation of old painted surface and painting with two coats of synthetic enamel paint by spray painting over a coat of red oxide primer on outer iron surface of any description ,any shape,any size at STP RCTC of capacity 350 KLD.

N C DUTTA

PRESCIENCE TECHNO INDUSTRIES

PIONEER TRADING

M/S. ARUP KUMAR DEY

M/S. BENGAL TRADERS