CERTAIN REPAIR/ MAINT OF STP AT CENTRAL and NORTH ZONE AREA UNDER GE NORTH BINNAGURI

Amount

Taking up cast iron main with flanged ends including disconnecting pipes and fittings complete all as specified and as directed for 200 mm bore

All as per item No 01 above but, 150 mm bore

Taking up GI Tubing including disconnecting pipes and fittings complete all as specified and directed for 40 mm bore

All as per item No 03 above but, 50 mm bore

M&L for Cast iron pipes with flanged ends, centrifugally cast, class A, in any length laid in trenches complete all as specified and as directed for 200mm bore

All as per item No 05 above but, 150 mm bore

Supply and fix in replacement CI butterfly valve 200mm dia confirming to IS code 13095:2020 with complete screwed for iron pipe and fixed for 200mm bore as specified and directed.

Supply and fix in replacement of CI butterfly valve 200mm dia confirming to IS code 13095:2020 with complete screwed for iron pipe and fixed for 100mm bore as specified and directed.

Supply and fixing in replacement 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 (a) 40 mm bore

All as per item No 09 above but, 50 mm bore

Supply and fix in replacement of sluice valve Cast iron PN-1.6 flanged end conforming to IS -14846:2000 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.for 200mm dia

All as per item No 11 above but, 150mm dia

All as per item No 11 above but, 100mm dia

Taking out accumulated mixture of sludge and sludge water from underground sump behind army school by mechanically using equipment & disposal of the same to a distance exc 25 mtr and exc 50 mtr to drying bed at North Zone STP and spreading leveling by mechanically using equipment & transportation to outside military defence land area etc complete all as specified and as directed (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 by mechanically using equipment & 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 by mechanically using equipment & transportation to outside military defence land area etc complete all as specified and as directed (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 by mechanically using equipment & 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 by mechanically using equipment & transportation to outside military defence land area etc complete all as specified and as directed (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 by mechanically using equipment & 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 by mechanically using equipment & transportation to outside military defence land area etc complete all as specified and as directed (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 by mechanically using equipment & 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 by mechanically using equipment & transportation to outside military defence land area etc complete all as specified and as directed (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 by mechanically using equipment & 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 (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 by mechanically using equipment & 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 (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 by mechanically using equipment & 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 (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 by mechanically using equipment & 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 (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 by mechanically using equipment & 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 (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 by mechanically using equipment & 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 (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 by mechanically using equipment & 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 (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 by mechanically using equipment & 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 (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 by mechanically using equipment & 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 (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 by mechanically using equipment 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 (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) by mechanically using equipment & 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 (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, Central Zone & sump behind army school STP by mechanically using equipment 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 whenever blockage occured and every operation shall be measured and paid separately).

Taking out accumulated mixture of sludge and sludge water from digester by mechanically using equipment 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 (Note : This operation shall be carried out once in every six months.

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

M&L for Painting to CI pipe 200/150/100/50 mm dia sewage pipe with one coat of black synethetic enamel paint after preparation of surfaces complete all as specified and as directed.

M&L for Painting to CI pipe 200/150/100/50 mm dia stat carrying air from blower with one coat of red oxide paint after preparation of surfaces complete all as specified and as directed.

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 /in replacement 'V' belt size A-11 for primary and secondary clarifier bridge motor complete all as specified and as directed.

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

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

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

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

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

S&F in repair / in replacement 70 W 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.

M&L in replacement 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 3 of MES Schedule Pt-I 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 and dismantling of existing one 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 45 here-in- before but capacity 25 HP

All as per item no 45 here-in- before but capacity 10/15 HP

All as per item no 45 here-in- before but capacity 7.5/ 5HP

All as per item no 45 here-in- before but capacity 3/ 2HP

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 .

All as per item no 50 here-in- before but capacity 15 HP

All as per item no 50 here-in- before but capacity 5 HP

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 .

All as per item no 53 here-in- before but capacity 900 Cum per hour

All as per item no 53 here-in- before but capacity 100 Cum per hour

All as per item no 53 here-in- before but capacity 50 Cum per hour

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/ replacement of motor control 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. including rewing with suitable size of copper wire connectors, circuit indicators and lugs etc. 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 in replacement 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

Supply 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

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

Supply 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.

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

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

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

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

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

Supply Pump protection relay, 03 Phase 415 Volt, Imin 4, 5, 6, 7, 8, 9 Amp, Imax 6, 8, 9, 10, 13 Amp.

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

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

Supply 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)

Supply 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)

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

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

Supply Terminal block 3 way

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

M & L for cross arms, bracing, support, clamps and back plates fabricated from structural steel section including nuts, bolts, washer , welding bending cold or hot drilling holes for bolts in any shape or size as indicated or directed including GI clamp and including of one primer coat , one under coat and one finishing coat of synthetic enamel paint complete all as specified and as directed.

Supply & use of Dewatering polyelectrolyte chemical as per requirement on ground

Supply & use of Poly aluminium chloride chemical as per requirement on ground

Supply & use of Sodium hypochlorite chemical as per requirement on ground

M&L for testing of outlet parameter (i.e. BOD, PH, COD, DO, TSS, Caliform Bacteria & Total Residue) of North & report to the department complete all as specified and as directed (Note: This testing work shall be done on every quaterly basis. Collection charges with proper container shall be deemed to be included in the quoted rate.

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

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

S & F in replacement CI fittings flanged type such as bend, reducer , socket, Tee etc of various size including taking down old one all as specified and directed

Supply and fix in replacement Flexible Green colour suction Hose Pipe for suction in single length 10 Mtr of dia 100 mm with both sides suitable size of clamps including taking down old one.

S & F in replacement Sub mersible Star- Delta pump starter in sheet-steel enclosure motor rating ,415 V, 50Hz,3Ph of capacity 10 HP relay range 13.2-20 A, contactor rating 20A including taking down old one.

Supply & fixing in replacement submersible cable flat PVC insulated & PVC sheathed 1100 volts grade with stranded copper conductor 3 core of size 6sqmm conforming to IS-694-1990 including taking out old UNSV cable from its position and complete as specified and as directed.

Material and labour for sub-main wiring alongwith earth wire of size of 4 x 6.0 sq. mm + 2 x 6.0 sq. mm earth wire, ISI marked, FRLS, PVC insulated, multi stranded, copper conductor, single core cable drawn through and including PVC rigid conduit (medium grade) of of size not less than 32 mm with all fittings and accessories ISI marked etc complete including taking down old one all as specified and as directed. NOTE : Four runs of 6 sqmm conductor for main and two run of 6 sqmm conductor as earth wire with proper colour coding including one run run of PVC conduit shall be measured as one unit length. Connections of cables wit MCBs or bus bar shall be done through appropriate size brass/ copper thimbles

Material and labour for sub-main wiring alongwith earth wire of size of 4 x 4.0 sq. mm + 2 x 4.0 sq. mm earth wire, ISI marked, FRLS, PVC insulated, multi stranded, copper conductor, single core cable drawn through and including PVC rigid conduit (medium grade) of of size not less than 32 mm with all fittings and accessories ISI marked etc complete including taking down old one all as specified and as directed. NOTE : Four runs of 4 sqmm conductor for main and two run of 4 sqmm conductor as earth wire with proper colour coding including one run run of PVC conduit shall be measured as one unit length. Connections of cables wit MCBs or bus bar shall be done through appropriate size brass/ copper thimbles

Excavation in trenches n exc 1.5 mtr wide and n.exc 1.5 mtr deep for pipe line in any type of soil, getting out and leveling of bottom surface to required level all asspecified and as directed.

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

Removing excavated material from site to a distance not exc 50 mtr away and depositing where as directed not exc 1.5 mtr from the starting point all as specified and as directed.

M&L for fabrication for errecting/ fixing mild steel (plain or chequered) plates 6 mm square cut to made mild steel framed flash mixture for clarifier bridge of as existing with out any altermates conforming to Fe410W (Gde E-250) Quality and incl removing plates all as directed

M/S ALOKE CHAKRABORTY and CO (BID ID -3460303)

M/S SHIVNATH SINGH (BID ID -3460651)

M/S MAJUMDER CONSTRUCTION (BID ID -3459613)

SHRI SATPAL SINGH (BID ID -3458746)

M/S S.K. CONSTRUCTION (BID ID -3459168)

M/S SHYAM ENTERPRISE (BID ID -3459515)

M/s. RAMPHAL GARG (BID ID -3459024)