REPAIR/REPLACEMENT AND MAINTENANCE OF STP, AND OTHER WORKS AT BINNAGURI AND COOCHBEHAR UNDER GE (S) BINNAGURI

Amount

Schedule 'A'

Taking up cast iron main with flanged ends including disconnecting pipes and fittings complete as specified and directed by engr in charge (a) 200 mm bore

M/L for Cast iron pipes with flanged ends, centrifugally cast, class A, in any length laid in trenches as specified and directed by engr in charge (a) 200mm bore

Supply and fix butterfly valve 200 mm dia high pressure withpolythene float and fly nut complete screwed for iron pipe and fixed for 200 mm bore as specified and directed by engr in charge

Supply and fix butterfly valve 100 mm dia high pressure withpolythene float and fly nut complete screwed for iron pipe and fixed for 100mm bore as specified and directed by engr in charge

Supply and fix butterfly valve 40 mm dia high pressure withpolythene float and fly nut complete screwed for iron pipe and fixed for 40 mm bore as specified and directed by engr in charge

Supply and fixing GI tubing medium grade ISI Marked on wall/ laying on floor/ceiling including with all fittings such as elbow, union, reducer, tees, bends etc and short length complete all as specified and directed by Engr In Charge for following sizes. (a) 40 mm bore

(b) -ditto- abve but 25 mm bore

Supply and fix CI sluice valve Cast iron PN-1.6 flanged end conforming to IS -14846 with CI wheel, brass spindle, chuck nuts, rubber gasket, bolts (full threded), nuts & washers including joints for the following sizes complete all as specified and directed including dismantling and taking down of old unserviceable CI Sluice valve from existing position. (Make : Hazara/Upadhyay) :- (a) 200mm dia

(b) -ditto- abve but 150mm dia

Taking out accumulated mixture of sludge and sludge water from underground sump behind army school & disposal of the same to a distance exc 25 mtr and exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from underground raw sump of North Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months)

Taking out accumulated mixture of sludge and sludge water from underground raw sump of Central Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months)

Taking out accumulated mixture of sludge and sludge water from underground raw sump of South Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at South Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from underground raw sump of Gwalapatti STP & disposal of the same to a distance not exc 25 mtr and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from underground raw sump of khalasipatti STP & disposal of the same to a distance not exc 25 mtr and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from 2 Nos aeration tank of North Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from 2 Nos aeration tank of Central Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from aeration tank of Gwalapatti STP & disposal of the same to a distance not exceeding 25 mtr to drying bed and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from aeration tank of Khalasipatti STP & disposal of the same to a distance not exceeding 25 mtr to drying bed and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from flocculator tank of North Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from tube settler tank of North Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from tube settler tank of Central Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from tube settler tank of khallasipatti STP & disposal of the same to a distance not exc 25 mtr to drying bed and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from tube settler tank of Gwallapatti STP & disposal of the same to a distance not exc 25 mtr to drying bed and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from chlorine contact tank of North Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from chlorine contact tank of Central Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from chlorine contact tank of khalasipatti STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from chlorine contact tank of Gwalapatti STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge water and treated water from treated water tank of North Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge water and treated water from treated water tank of Central Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge water and treated water from treated water tank of Gwalapatti STP & disposal of the same to a distance not exc 25 mtr to drying bed and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge water and treated water from treated water tank of Khallasipatti STP & disposal of the same to a distance not exc 25 mtr to drying bed and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from sludge holding tank of North Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from Drain well of Central Zone STP & disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed at North Zone STP and spreading leveling etc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from clarifiers (Primary and secondary) of STP and disposal of the same to a distance exc 25 mtr and not exc 50 mtr to drying bed and spreading leveling ectc complete all as specified and as directed by the Engineer-in-Charge (Note : This operation shall be carried out once in every three months )

Taking out accumulated mixture of sludge and sludge water from recirculaltion well, low lift and sludge wells (8 Nos) depositing to a distance exc 50 mtr and not exc 100 mtr to drying bed and spreading, levelling complete all as specified and as directed by Engineer-in-Charge (Note : This cleaning shall be done once in every month and every operation shall be measured and paid separately).

Taking out accumulated sludge and foreign particles from screen chamber of North Zone, South Zone , Central Zone & sump behind army school STP and depositing to drying bed at distance not exc 25 mtr spreading, levelling complete all as specified and directed (Note : This cleaning work shall be done once in a day and every operation shall be measured and paid separately).

Cleaning of blockage of Primary & secondary Bio-filter (each bio-filter consists of four arms) nozzle by wire or by opening the nozzle lid complete all as specified and as directed (Note : This cleaning work shal be done once in every day and every operation shall be measured and paid separately).

Taking out accumulated mixture of sludge and sludge water from digester and disposal of the same to a distance exc 10 mtr and not exc 50 mtr to drying bed, spreading, leveling complete all as directed by the Engineer-in-charge (Note : This operation shall be carried out once in every six months.

Taking out accumulate dry sludge (Dry manure) from drying beds and removing from site all as directed by Engineer-in-charge (Note : The drying manure obtain from this item shall become contractors property and recovery shall be made in advance with credit schedule).

S&F Aluminium sprinkler with nozzle 40/15mm bore and aluminium nozzle cover one end threaded (for primary bio-filter rotary arms) as per specification & size of old one complete all as directed.

-do- but 50/15 mm bore as per specification of the old one (for secondary bio-filter rotary arms)

Painting of CI pipe 200/150/100/50 mm dia carring sewage with one coat of black paint after preparation of surfaces

Painting of CI pipe 200/150/100/50 mm dia carrying air from blower with one coat of black paint after preparation of surfaces

Dismantling defective current collector assembly of primary and secondary clarifiers and refixing in position after carrying out servicing/replacement of the following worn-out parts as given below after re-doing all electrical connections complete all as specified and directed. (a) Carbon brush with spring as per existing size and specification - 4 Nos. (b) Carbon brush holder as per existing size and specification - 04 Nos. (c) Cleaning/greasing of centre bearing of clarifier bridge all as directed.

S&F in repair 'V' belt size A-11 for primary and secondary clarifier bridge motor complete all as specified and directed.

S&F in repair 'V' belt size 101B for 50 HP blower motor complete all as specified and directed.

S&F in repair 'V' belt size C76 for 25 HP blower motor complete all as specified and directed.

S&F in repair 'V' belt size A55 for 5 HP blower motor complete all as specified and directed.

S&F in repair 'V' belt size A44 for 3 HP blower motor complete all as specified and directed.

Dismantling of old rusted/corroded and pitted GI nipple fixed on primary/secondary bio-filter arms by electric/gas welding complete all as specified and directed

S&F 6cm long 15 mm dia heavy duty GI nipple one end threaded of primary and secondary bio-filter including necessary suitable arrangement for welding of GI nipple on rotary arms as per existing specification complete all as specified and directed

M&L in repair of gland packaging 15 mm size for non clogging pumping sets, sluice valves at STP all as specified and ditected.

S&F in repair 35W LED security light made up of pressure die cast housing with toughned glass and individual high power LEDs with secondary optics, IP66 protection and impact resistance of IK07 including fixing accessories such as PCC base, grouting of MS Nuts, bolts, MS clamps all as per site requirement complete all directed. (MAKE- Havells/ PHILLIPS/WIPRO/BAJAJ)

M&L for earthing with galvanized steel earth plate electrode 60 cm x 60cm x 6mm thick, buried directly in ground (earth pit not less than 2.25m below normal ground level) with top edge of earth plate not less than 1.5m below normal ground level connected to galvanized earth lead strip 25x4mm (earthing lead from earth electrode to test point upto 7.5m ) by means of bolts, nut, checknuts and washers of galvanized iron or steel all as shown in electrical plate No 5 of MES Schedule Pt-I 1991, GI earth lead strip of size 25mm x 4mm protected by GI pipe 40mm dia light grade and connected to earth test point including excavation & earthwork including testing on completion complete all as specified and directed.

M & L for disconnection of Electrical/Mechanical connection and taking out carefuly of electric motor capacity 50 HP (3 phase, 415V 50 HZ, AC Supply) of any make and rewinding the same with super enameled copper wire of existing gauge/specification making of heat varnishing, greasing and two coat spray/ brush painting with synthetic enemel paint of recommended colour including replacement of bearings NDE and DE as per existing specification and size including refixing the motor in position making all electrical and mechanical connections and testing complete all as specified and as directed .

All as per item no 56 here-in- before but capacity 25 HP

All as per item no 56 here-in- before but capacity 20 HP

All as per item no 56 here-in- before but capacity 10/15 HP

All as per item no 56 here-in- before but capacity 7.5/ 5HP

M & L for disconnection of Electrical/Mechanical connection and taking out carefuly of sumbersible Raw Sewage pump capacity 7.5/ 10 HP (3 phase, 415V 50 HZ, AC Supply) of any make and rewinding the same with super enameled copper wire of existing gauge/specification making of heat varnishing, replacement of thrust bearings & oil seal as per existing specification and size including refixing the motor in position making all electrical and mechanical connections and testing complete all as specified and as directed .

M & L for disconnection of Electrical/Mechanical connection and taking out carefuly of sumbersible Raw Sewage pump capacity 15 HP (3 phase, 415V 50 HZ, AC Supply)of any make and rewinding the same with super enameled copper wire of existing gauge/specification making of heat varnishing, replacement of thrust bearings & oil seal as per existing specification and size including refixing the motor in position making all electrical and mechanical connections and testing complete all as specified and as directed .

M & L for disconnection of Electrical/Mechanical connection and taking out carefuly of sumbersible Raw Sewage pump capacity less than or equal to 5 hp (3 phase, 415V 50 HZ, AC Supply) of any make and rewinding the same with super enameled copper wire of existing gauge/specification making of heat varnishing, replacement of thrust bearings & oil seal as per existing specification and size including refixing the motor in position making all electrical and mechanical connections and testing complete all as specified and as directed

M & L for disconnection of Electrical/Mechanical connection and taking out carefuly of Progressive cavity pumps of power consuming capacity 2 KW and repair it by repacing unsv bonded stator, Mechanical seal, gland packing set & O rings including refixing the motor in position making all electrical and mechanical connections and testing complete all as specified and as directed .

M & L for disconnection of Electrical/Mechanical connection and taking out carefuly of centrifugal pumps of power consuming capacity 20 KW and repair it by repacing unsv ball bearings at DE & NDE ends, and sealing non drive ends with gland

M & L for disconnection of Electrical/Mechanical connection and taking out carefuly of centrifugal pumps of power consuming capacity 10/15 KW and repair it by repacing unsv ball bearings at DE & NDE ends, and sealing non drive ends with gland

M & L for disconnection of Electrical/Mechanical connection and taking out carefuly of centrifugal pumps of power consuming capacity 7.5/5 KW and repair it by repacing unsv ball bearings at DE & NDE ends, and sealing non drive ends with gland

M & L for disconnection of Mechanical connection and taking out carefuly of Air Blower of capacity 1155 Cum per hour and replacement of Air Filter ,gear oil, grease, oil seal , bearings NDE and DE as per existing specification and size including refixing the Air blower in position making all mechanical connections and testing complete all as specified and as directed .

M & L for disconnection of Mechanical connection and taking out carefuly of Air Blower of capacity 900 Cum per hour and replacement of Air Filter ,gear oil, grease, oil seal , bearings NDE and DE as per existing specification and size including refixing the Air blower in position making all mechanical connections and testing complete all as specified and as directed .

M & L for disconnection of Mechanical connection and taking out carefuly of Air Blower of capacity 100 Cum per hour and replacement of Air Filter ,gear oil, grease, oil seal & oil ring , bearings NDE and DE as per existing specification and size including refixing the Air blower in position making all mechanical connections and testing complete all as specified and as directed .

M & L for disconnection of Mechanical connection and taking out carefuly of Air Blower of capacity 50 Cum per hour and replacement of Air Filter ,gear oil, grease, oil seal , bearings NDE and DE as per existing specification and size including refixing the Air blower in position making all mechanical connections and testing complete all as specified and as directed .

Supply, installation, testing and commissioning in replacement of granular chlorine dosing pump high pressure single head gear motorised adjustable type with non metallic liquid end including tubing, connecting nut, injection check valve and ferrule, section with all accessories complete all as specified and as directed.

M&L for cutting the bushes, grass, thorney bushes, small plants/trees up to a height of 5 mtr in and around STP south zone and central zone incl surface dressing and removing the waste material to a distance not exceeding 50 mtr from the starting point complete all as specified and directed.

M & L for repairing of motor controll Panel with dismantling all unserviceable fitting and electric connection and reassembling the same after carry out the following replacement/jobs and painting with two coats of synthetic enamel paint over a coat of primer after prepartion of internal and external surface. Testing on load all complete as specified and as directed. (Note : Accessories to be replaced shall be measured and paid separately as mentioned here-after.

Supply only following spares for motor control Panel (a) Motor protection circuit breaker with 415 V breaking capacity, Icu 100 KA, 4 KW power capacity, thermal release adjustment range 6 to 10 Amp. Make legrand

Motor protection circuit breaker with 415 V breaking capacity, Icu 100 KA, 2.2 KW power capaacity, thermal release adjustment range 4 to 6 Amp. Make legrand

Motor protection circuit breaker with 415 V breaking capacity, Icu 100 KA, 5.5 KW power capacity, thermal adjustment range 9 to 13 Amp. Make Legrand

Motor protection circuit breaker with 415 V breaking capacity, Icu 100 KA, 7.5 KW, 11 KW, 15 KW & 18.5 KW power capacity, thermal adjustment range 11 to 17 Amp, 18 to 26 Amp, 22 to 32 Amp & 28 to 40 Amp. Make legrand

Motor protection circuit breaker with 415 V breaking capacity, Icu 75 KA, 75 KW power capacity, thermal adjustment range 55 to 75 Amp. Make legrand

Power contactor suitable for operation on 03 Phase, 415 Voltage, Max. opt. current AC3 18 Amps. Make legrand

Power contactor suitable for operation on 03 Phase, 415 Voltage, Max. opt. current AC3 32 Amps. Make legrand

Power contactor suitable for operation on 03 Phase, 415 Voltage, Max. opt. current AC3 40 Amps. Make legrand

Power contactor suitable for operation on 03 Phase, 415 Voltage, Max. opt. current AC3 75 Amps. Make legrand

Pump protection relay, 03 Phase 415 Volt, Imin 28 Amp, Imax 40 Amp. Make legrand, Model RTX3 100

Pump protection relay, 03 Phase 415 Volt, Imin 12,16 Amp, Imax 18, 22 Amp. Make legrand, Model RTX3 40

Pump protection relay, 03 Phase 415 Volt, Imin 4, 5, 6, 7, 8, 9 Amp, Imax 6, 8, 9, 10, 13 Amp. Make legrand, Model RTX3 40

electronic timer 415 volt, 3-10 sec switching time. Make L&T

Single phase preventor, 415 Volts, 4 to 7 sec trip time delay

Volt meter 0-500 Volt square type 96mm x 96mm size (Make :Model No SMR-96 of AE or Equivalent of HAVELLS/GE POWER CONTROL)

Ammeter 0-100 Amp. Square type 96mm x 96 mm size (Make :Model No SMI-96 of AE or Equivalent of HAVELLS/GE POWER CONTROL)

Indicator lamp with holder ( RED, YELLOW and BLUE), Volt with built in resistor. (Make : SIEMENS/L&T/GE POWER CONTROL)

Push button switch for starter ON/OFF. (Make : SIEMENS/ L&T/C&S)

Terminal block 3 way

CT Coil 100/5 ratio. Make : L & T/AE or Equivalent)

M&L for change of unsv thrust bearing of bio filters as specified and directed by engr-in-charge

M&L for replacement of unsv gate of size 2 ft X 2.5 ft made of MS steel of thickness 6mm after two coat of primer & welding with complete as specified & directed by engr in charge

M&L for replacement of unsv gate of size 4 ft X 4 ft made of MS steel of thickness 6mm after two coat of primer complete as specified & directed by engr in charge

S&F Pressure gauge, 100 mm dia, pressure range (0 - 1 kg/cm2) complete as specified and directed by engr in charge. Make Baumer

S&F Pressure gauge, 100 mm dia, pressure range (0 - 10 kg/cm2) complete as specified and directed by engr in charge. Make Baumer

S&F bypass rotameter with acrylic tube body construction & glass tube meter suitable for fixing in 50 mm to 500 mm bore pipe for measuring flow rate between 25 to 800 cum/hr. Make levsen control & engineering

Supplying and charging in layers special coarse sand/Gravels suitable for use in filtration plant of following sizes, complete all as specified and as directed.:- (a) sand of size10 to 20 mesh

(b) Gravels of size 1/16" to 1/8" mesh

(c) Gravels of size 1/8" to 1/4" mesh

(d) Gravels of size 1/4" to 1/2" mesh

(e) Gravels of size 1/2" to 1" mesh

(f) Anthracite coal of size 1/16" X 1/8" mesh

Supply & filling of floating plastic biological filter media used in MBBR STP complete all as specified and directed by engr in charge

Supply & fixing of fixed plastic biological filter media used in SAFF STP complete all as specified and directed by engr in charge

Supply & install flexible hose pipe of bore 80 mm made of plastic suitable for removing sludge water as directed by engr in charge complete all as specified and directed by engr in charge

Samir Kumar Dey

M/S NIKITA ENGINEERING CO

N K Construction

M/S SINHA ENTERPRISE

M/s. RAMPHAL GARG

M/S D S CONSTRUCTION CO