REPAIR TO WATER SUPPLY AND ANTI FLOOD PUMP SET, LT PANEL AND CONNECTED ITEM AND MAINTENANCE OF STP AT AF STN UTARLAI

Amount

Material and labour for repairing/servicing the Electric induction motor and centrifugal pump coupled type by carefully disconnecting the connection cables and earthings, removing side covers, greasing wherever necessary, changing of defective minor parts and re-assembling, testing of capacity 50 to 75 HP to the satisfaction of Engr-in-Charge.

M & L for rewinding of submersible motor of capacity 1 HP 230 V capacity with super enamelled copper conductor of same guage weight and turns to achieve its full efficiency including tying the windings and connecting the coils and bringing the connections as that of exisitng complete including replacement of worn out/unserviceable bearings and water seal etc all as specified and directed by the Eng-in-Charge. Note: (i) The rate of transportation from site to workshop and back is deemed to be included in the rate quoted by contactor. (ii) The rent of T&P for handling the pump motor assembly during dismantling and refixing is deemed to be included in the rate quoted by contatcor.

M & L for rewinding of submersible motor of capacity 1.5 to 2 HP 230V capacity with super enamelled copper conductor of same guage weight and turns to achieve its full efficiency including tying the windings and connecting the coils and bringing the connections as that of exisitng complete including replacement of worn out/unserviceable bearings and water seal etc all as specified and directed by the Eng-in-Charge. Note: (i) The rate of transportation from site to workshop and back is deemed to be included in the rate quoted by contactor. (ii) The rent of T&P for handling the pump motor assembly during dismantling and refixing is deemed to be included in the rate quoted by contatcor.

M & L for rewinding of submersible motor of capacity 3 to 5 HP 415 V capacity with super enamelled copper conductor of same guage weight and turns to achieve its full efficiency including tying the windings and connecting the coils and bringing the connections as that of exisitng complete including replacement of worn out/unserviceable bearings and water seal etc all as specified and directed by the Eng-in-Charge.Note: (i) The rate of transportation from site to workshop and back is deemed to be included in the rate quoted by contactor. (ii) The rent of T&P for handling the pump motor assembly during dismantling and refixing is deemed to be included in the rate quoted by contatcor.

M & L for rewinding of submersible motor of capacity 7.5 HP 415 V capacity with super enamelled copper conductor of same guage weight and turns to achieve its full efficiency including tying the windings and connecting the coils and bringing the connections as that of exisitng complete including replacement of worn out/unserviceable bearings and water seal etc all as specified and directed by the Eng-in-Charge. Note: (i) The rate of transportation from site to workshop and back is deemed to be included in the rate quoted by contactor. (ii) The rent of T&P for handling the pump motor assembly during dismantling and refixing is deemed to be included in the rate quoted by contatcor.

M & L for rewinding of submersible motor of capacity 10 HP 415 Vcapacity with super enamelled copper conductor of same guage weight and turns to achieve its full efficiency including tying the windings and connecting the coils and bringing the connections as that of exisitng complete including replacement of worn out/unserviceable bearings and water seal etc all as specified and directed by the Eng-in-Charge. Note: (i) The rate of transportation from site to workshop and back is deemed to be included in the rate quoted by contactor. (ii) The rent of T&P for handling the pump motor assembly during dismantling and refixing is deemed to be included in the rate quoted by contatcor.

Supply calcium based high strength granular chlorination chemical a white off white free flowing granular material which is free of foreign materials decompising at 177 degree C soluble in water and alcohol not hygroscopic practically clear in water solution auration level. The material should not contain more than 5% to 10% moisture. Granular should be as mesh passing through 100BS 1.5% maximum iron as Fe 0.05% maximum Mn 40 PPM maximum Mol wt 142.98, Toxicity: Oral rate LD 50-850mg/Kg. Make approved by AHQ E-in-C's Branch, New Delhi/Zonal Chief Engineer

Labour for cutting green growth / vegetation growth for cleaning out the area by cutting up root, unwanted plants/bushes and removal the same to a distance not less than 50 mtr directed by Engineer-in-Charge.

Cleaning of Semi U/G sump of capacity 300000 Gln, dewatering the tank below the suction pipe with submersible pump with suitable arrangements, desilting and removing of left over water from bottom, cleaning tank surfaces by using bleaching powder approx 80 Kg and remove all foreign materials and clean with plain water and then after cleaning making white wash of the inner surface with the lime complete all as directed by the Engineer-in-Charge. Note:- (i) The job shall be completed within 8 hrs to avoid any interruption in distribution of water supply (ii) The date of cleaning and due date should be written legible on the surface of the tank/sump as per existing old colour and font size.

Cleaning of Semi U/G sump of capacity 200000 Gln, dewatering the tank below the suction pipe with submersible pump with suitable arrangements, desilting and removing of left over water from bottom, cleaning tank surfaces by using bleaching powder approx 60 Kg and remove all foreign materials and clean with plain water and then after cleaning making white wash of the inner surface with the lime complete all as directed by the Engineer-in-Charge. (i) The job shall be completed within 8 hrs to avoid any interruption in distribution of water supply (ii) The date of cleaning and due date should be written legible on the surface of the tank/sump as per existing old colour and font size.

Cleaning of U/G sump of capacity 150000 Gln, dewatering the tank below the suction pipe with submersible pump with suitable arrangements, desilting and removing of left over water from bottom, cleaning tank surfaces by using bleaching powder approx 50 Kg and remove all foreign materials and clean with plain water and then after cleaning making white wash of the inner surface with the lime complete all as directed by the Engineer-in-Charge. (i) The job shall be completed within 8 hrs to avoid any interruption in distribution of water supply (ii) The date of cleaning and due date should be written legible on the surface of the tank/sump as per existing old colour and font size.

Cleaning of U/G sump of capacity 75000 Gln, dewatering the tank below the suction pipe with submersible pump with suitable arrangements, desilting and removing of left over water from bottom, cleaning tank surfaces by using bleaching powder approx 30 Kg and remove all foreign materials and clean with plain water and then after cleaning making white wash of the inner surface with the lime complete all as directed by the Engineer-in-Charge. (i) The job shall be completed within 8 hrs to avoid any interruption in distribution of water supply (ii) The date of cleaning and due date should be written legible on the surface of the tank/sump as per existing old colour and font size.

Cleaning of U/G sump of capacity 50000 Gln, dewatering the tank below the suction pipe with submersible pump with suitable arrangements, desilting and removing of left over water from bottom, cleaning tank surfaces by using bleaching powder approx 25 Kg and remove all foreign materials and clean with plain water and then after cleaning making white wash of the inner surface with the lime complete all as directed by the Engineer-in-Charge. (i) The job shall be completed within 8 hrs to avoid any interruption in distribution of water supply (ii) The date of cleaning and due date should be written legible on the surface of the tank/sump as per existing old colour and font size.

Cleaning of U/G sump of capacity 30000 Gln, dewatering the tank below the suction pipe with submersible pump with suitable arrangements, desilting and removing of left over water from bottom, cleaning tank surfaces by using bleaching powder approx 25 Kg and remove all foreign materials and clean with plain water and then after cleaning making white wash of the inner surface with the lime complete all as directed by the Engineer-in-Charge. (i) The job shall be completed within 8 hrs to avoid any interruption in distribution of water supply (ii) The date of cleaning and due date should be written legible on the surface of the tank/sump as per existing old colour and font size.

Cleaning of U/G sump of capacity 3000 to 10000 Ltr, dewatering the tank below the suction pipe with submersible pump with suitable arrangements, desilting and removing of left over water from bottom, cleaning tank surfaces by using bleaching powder approx 20 Kg and remove all foreign materials and clean with plain water and then after cleaning making white wash of the inner surface and outer surface with the lime complete, all as directed by the Engineer-in-Charge. (i) The job shall be completed within 8 hrs to avoid any interruption in distribution of water supply (ii) The date of cleaning and due date should be written legible on the surface of the tank/sump as per existing old colour and font size.

Cleaning of OH tank of capacity 20000 Gln first with plain water and then with the bleaching powder minimum 50 Kg after cleaning making white wash of the inner surface with the lime complete all as directed by the Engineer-in-Charge.(i) The job shall be completed within 8 hrs to avoid any interruption in distribution of water supply (ii) The date of cleaning and due date should be written legible on the surface of the tank/sump as per existing old colour and font size. (iii) All safety measures shall be taken by the contractor as per safety code/procedure.

Cleaning of OH tank of capacity 50000 Gln first with plain water and then with the bleaching powder minimum 50 Kg after cleaning making white wash of the inner surface with the lime complete all as directed by the Engineer-in-Charge.(i) The job shall be completed within 8 hrs to avoid any interruption in distribution of water supply (ii) The date of cleaning and due date should be written legible on the surface of the tank/sump as per existing old colour and font size. (iii) All safety measures shall be taken by the contractor as per safety code/procedure.

Cleaning of PVC tank of capacity 5000 Ltr, dewatering the tank, desilting and removing of left over water from bottom, cleaning tank surfaces by using bleaching powder approx 5 Kg and remove all foreign materials and clean with plain water all as directed by the Engineer-in-Charge. (i) The job shall be completed within 8 hrs to avoid any interruption in distribution of water supply (ii) The date of cleaning and due date should be written legible on the surface of the tank/sump as per existing old colour and font size.

Excavation in trenches as in hard / dense soil, not exc 1.5 mtr wide and not exc 1.5 mtr depth for laying of GI/CI pipe lines etc getting out including forming bottom surface to required level and gradient all as specified and directed by Engineer-in-Charge.

Returning, filling in, excavated soil including spreading leveling, watering, well ramming in layers not exc 25 cm thick complete, all as specified and directed by Engineer-in-Charge.

Removing of excavated materials not exceeding 50 Mtrs and depositing at a level not exceeding 1.5 M above the starting point, all as specified and directed by Engineer-in-Charge.

Taking up or down GI water tubing and connections including cleaning for refixing complete all as specified and directed for the following sizes :- Note: Excavation shall be measured and paid separately

15 mm bore

20mm bore

25mm bore

40mm bore

50mm bore

80mm bore

Taking up or down GI water tubing or CI/DI pipe line and connections complete all as directed by the Engineer-in-Charge for the following sizes :- Note: Excavation shall be measured and paid separately

100 mm bore

150 mm bore

Refixing old GI tubing and connections in new or old position (Walls, ceiling,floors, etc steel water tubing and connections complete all as specified and directed for the following sizes :- Note: Excavation shall be measured and paid separately

15 mm bore

20mm bore

25mm bore

40mm bore

50mm bore

80mm bore

Relaying of DI pipe line and connections complete all as directed by the Engineer-in-Charge for the following sizes :- Note: Excavation shall be measured and paid separately

100 mm bore

150mm bore

Supply and lay of GI pipe, 'medium grade' with all fittings laid in trenches complete all as specified and as directed for the following sizes:-

15 mm bore

20mm bore

25 mm bore

40mm bore

50mm bore

80mm bore

Supply and laying of DI pipe (Ductile iron pipe) spigot and socket ends, class "K-7" with rubber gasket (tighten joint) , laid in trenches including necessary cut to length to match the existing fitting/pipes or insertion of new DI specials complete all as specified and directed by the Engineer-in-charge for the following sizes :- Note: DI specials shall be measured and paid seperately

100 mm bore

150 mm bore

Supply and fix, in repairs of Gun - metal globe or gate valve with iron wheel head, screwed both ends for iron pipes and for unions and fixing including taking down existing unserviceable valves complete all as specified and directed for following sizes:-

50mm bore

40mm bore

25 mm bore

20mm bore

15 mm bore

Material and labour for DI specials such as bends, tees, collars, tail pieces, straight/angle connecting pieces any type (flanged ends, socketed ends or flanged/socketed ends) complete suitable for DI mains of sizes upto 300 mm complete all as specified and directed.

Repair,maintenance and servicing of pressure switch including dismantling, cleaning the dust deposits, greasing, checking for wear and tear, refixing, testing, installing and commissioning all as specified and directed by Engr-in-Charge.

Repair,maintenance and servicing of solenoid valve 15mm dia 230V AC including dismantling, cleaning the dust deposits, greasing, checking for wear and tear, refixing, testing, installing and commissioning all as specified and directed by Engr-in-Charge.

Repair,maintenance and servicing of solenoid valve 25mm dia 230V AC including dismantling, cleaning the dust deposits, greasing, checking for wear and tear, refixing, testing, installing and commissioning all as specified and directed by Engr-in-Charge.

Repair,maintenance and servicing of motorised butterfly valve of size 80mm dia including dismantling, cleaning the dust deposits, greasing, checking for wear and tear, refixing, testing, installing and commissioning all as specified and directed by Engr-in-Charge.

Repair,maintenance and servicing of motorised butterfly valve of size 150mm dia including dismantling, cleaning the dust deposits, greasing, checking for wear and tear, refixing, testing, installing and commissioning all as specified and directed by Engr-in-Charge.

Supply and fix in repair coil for solenoid valve 15mm dia 230V AC, direct acting/diaphragm type, pilot operated solenoid valve for air release of size 15mm dia, pressure 6 Kg/Sqcm, coil power 6W. Make: Danfoss/Indfoss/Rotex or equivalent

Supply and fix in repair coil for solenoid valve 25mm dia 230V AC, direct acting/diaphragm type, pilot operated solenoid valve for air release of size 25mm dia, pressure 6 Kg/Sqcm, coil power 6W. Make: Danfoss/Indfoss/Rotex or equivalent

Supply and fix in repair of relay card 1 C/O, 24V DC all as specified and directed Make: Omron/Schneider/Phoneix contact or equivalent

Supply and fix in repair of relay with base 2 C/O 240V AC all as specified and directed Make: Omron/Schneider/Phoneix contact or equivalent

Supply and fix in repair of 22mm LED indicator colour Red,Yellow,Green complete all as specified and directed. Make: Schneider/Siemens or equivalent

Supply and fix in repair of 10mm LED indicator colour Red,Yellow,Green complete all as specified and directed. Make: Schneider/Siemens or equivalent

Supply and fix in repair of push button with LED indicator 220V AC. Colour: Red/Yellow/Green. Make : Schneider/Siemens or equivalent

Supply and fix in repair of SMPS input 230V AC, output 24 V DC complete all as specified and directed. Make: Schneider/Siemens or equivalent

Supply and fix in repair ultrasonic level transmitter at sump and over head tank for measurement of level of range 0-5 meters, accuracy 0.5% minimum, supply voltage 24V DC, output 4-20mA, 0-10V DC. Make: Siemens or Equivalent

Supply and fix in repair power contactor 9A 3 pole complete all as specified. Make: L&T/Schneider/ Siemens or Equivalent

Supply and fix in repair of limit switch for actuator of size 80/150mm valves complete al as specified and directed.

Supply and laying, testing and commissioning of 4 pair CAT 6 UTP cable for sensors. Make: D Link/Finolex/Polycab

Supply and fixing in repair of 4 core 1.5 sqmm PVC sheathed PVC insulated copper cable. Make: Havells/Polycab/Gloster

Supply and fixing in repair of 6 core 1.5 sqmm PVC sheathed PVC insulated copper cable. Make: Havells/Polycab/Gloster

Supply, install, testing and comissioning in repair of maintenance free batteries 12 V, 180 AH including copper terminal lugs complete and disconnecting old unserviceable 12V,180AH batteries with copper terminal lugs complete. Make: Exide/Tata green/Amron

M&L for 'B' check for maintenance 160 KVA DG Set as per the recommendations of manufacturer (OEM) including renewal of necessary recommended filters, engine oil, 'O' rings etc., complete all as directed by Engineer-in-charge. Note: Engine oil will not be supplied by MES

M&L for 'B' check for maintenance 200 KVA DG Set as per the recommendations of manufacturer (OEM) including renewal of necessary recommended filters, engine oil, 'O' rings etc., complete all as directed by Engineer-in-charge. Note: Engine oil will not be supplied by MES

Repair & Calibration of Self Starter including re-winding of Commutator, replacing Carbon brush set, carbon brush holder, King Pins Holders, armature check nuts, body screws, clutch plate assembly and solenoid etc. as required for the capacity of 160 to 200 KVA DG Set.

Removing the fuel pump and fuel injectors of the DG Set 160 to 200 KVA, servicing the pump, overhauling and calibrating the injectors, fixing back, connecting, priming and commissioning in the engine including replacing rocker cover gaskets etc. all as directed.

Decarburizing/cleaning complete Control panel of DG set 160 to 200 KVA by cleaning bus bar chamber with suitable chemical and ensure proper decarburizing, internal wiring and replacing the damaged wires of existing size, refixing the same after applying suitable solution to the bus bar insulator & checking all the connections, tightening the nuts, bolts & thimbles of in-coming/out-going system complete incl replacement of defective rusted bolts & nuts, repairing to door/ shutter hinges and locking arrangements all a directed by Engr-in-Charge all as specified and directed.

Chemical & bacteriological analysis of treated water from Govt. agency/recognized / authorized testing laboratory as and when recommended by the Engineer - in- charge.

M&L for attending to break down of 200 to 350mm dia DI pipe line bursting/cracks including necessary excavation, dewatering the water accumulated at site, removal of broken pipe pieces of various lengths through gas cutting/manual cutting as per site requirement including removing out the damaged DI pipe and inserting necessary DI specials such as collar, nipple etc as required at site and providing of new joints as required at site, clamping arrangements, PCC work including testing for the leakages pipes complete all as specified and directed by Engineer-in-Charge.

Material and labour for repairing/servicing the 3 phase 415V Electric induction motor and centrifugal pump coupled type by carefully disconnecting the connection cables and earthings, removing gland cover, filling the gland properly,greasing the necessary parts as required, changing of defective copper lugs of cable in pump/motor of capacity 40 HP to the entire satisfaction of Engr-in-Charge.

All as per serial item No. 58 here-in-before but monoblock pump 20 HP

All as per serial item No. 58 here-in-before but monoblock pump 12.5 HP

Rewinding of burnt out motor of capacity 20 HP 415 V by dismantling of motor, cutting and taking out burnt stator winding from motor cleaning the stator and rewinding with super enamelled copper wire of original gauge/size including tapping varnishing, drying, painting, assembling and complete necessary connection, commissioning and testing on full load. Note :- (i) Cost of minor spare parts deemed to have been included in quoted rates. (ii) The rate of transportation from site to workshop and back is deemed to be included in the rate quoted by contactor. (iii) The rent of T&P for handling the pump motor assembly during dismantling and refixing is deemed to be included in the rate quoted by contatcor.

All as per serial item No. 61 here-in-before but monoblock pump 12.5 HP

All as per serial item No. 61 here-in-before but monoblock pump 3 HP

All as per serial item No. 61 here-in-before but monoblock pump 2 HP 230V

Supply and fixing in repair of CI sluice valve with drilled flanged ends, stainless steel spindle with gun metal working parts with hand wheel, pressure type PN 1.0 including disconnection and removing the unserviceable sluice valves from the existing pipe line/valve chamber for the following sizes complete all as directed by the Engineer-in-Charge :-

80mm bore

100 mm bore

150mm bore

Dismantling the old valve pit chamber and construct valve chamber 1000x1000x1000 mm (internal ) with PCC block masonary valve chamber, PCC 1:11:8 type D-2 40mm graded stone aggregate foundation, plastering and necessary earth work in hard/ dense soil, MS sheet cover 3.15 mm thickness along with angle iron frame of size 40 x 40 x 6mm with locking arrangement with necessary fixing materials like hinges, nut/bolts etc (valve chamber cover shall be opened in two halves) and painting to MS cover with one coat of red oxide and two coats of synthetic enamel paint etc all as specified and directed by Engineer-in-Charge. Note :- Specification of value pit chamber as per existing value pit chamber.

All as per item No. 66.00 above but size of valve chamber is 1200x1200x1200mm (internal)

M & L for road/path cutting for laying of GI/DI pipes upto required depth n. exc 1.5 mtr complete all as directed by Engineer-in-Charge.

M & L for boring of holes 150mm dia under road, pavement, hard standing by trenchless technology using ultra sound technique and necessary machine complete all as directed by Engineer-in-Charge.

M & L for cement concrete in road surfacing, filling and mass concrete type B1, 1:2:4 (20mm graded stone aggregate) for repairs to road cutting for laying of pipe lines/complete all as directed by Engineer-in-Charge.

M&L for rectification of existing defective run lead joints including burning and removing the old defective lead joints and providing new lead joints with all required materials and testing the joints for leakages of the following pipes complete including excavation, returining and filling etc.all as directed by Engineer-in-charge.

150mm dia bore CI pipe

100mm dia bore CI pipe

S&F in repair saddle piece made out of MS flat iron of size 50 x 6mm duly welded with 25 to 40mm dia GI socket and 2 Nos nut/bolts of suitable size/length, necessary rubber packing for branch connections for the sizes of 80 to 150mm dia CI/DI mains complete including necessary earth work all as directed by the Engineer-in-Charge

Material and labour for repairing of valve pit chamber of size 1mx1mx1m by taking down the old plaster and 10mm thick in CM 1:4 in complete surface of valve pit and preparing of old steel surfaces and painting to MS cover with one coat of red oxide and two coats of synthetic enamel paint including removing debris/ sludge etc from valve chamber all as specified and directed by Engineer-in-Charge.

Material and labour for repairing of valve pit chamber of size 1.2mx1.2mx1.2m by taking down the old plaster and 10mm thick in CM 1:4 in cement plaster in complete surface of valve pit and preparing of old steel surfaces and painting to MS cover with one coat of red oxide and two coats of synthetic enamel paint including removing debris/ sludge etc from valve chamber all as specified and directed by Engineer-in-Charge.

Supply only the following items/ chemicals for maintenance of sewage treatment plant :-

Sodium Hypo chlorite solution (liquid chlorine) having 10% chlorine content in sealed HDPE container confirmed to IS code

Poly Electrolyte (PE) in sealed bag confirmed to IS code

Poly Aluminium Chlorite (PAC) 10% content in sealed HDPE container confirmed to IS code

M&L for Decarburising/servicing of STP main operating control panel by strip opening/disconnecting the electric supply, removing the dust deposits inside the panel and over the accessories by using blower, replace the burntout/unserviceable power contactor, auxillary contact block, MCB's, push button, indicator lamp, terminal block, burnt out internal wiring with suitable copper wire and copper lugs as per existing size matching the same existing colour code and number code, replacing the existing busbar with copper busbar (RYBN) of existing size and shape with colour code insulation as per practice, preparing the exterior steel surfaces of the panel including base frame and painting with two coats of synthetic synthetic enamel paint all as specified to the entire satisfaction of Engr-in-Charge. Note: Major spares like power contactor, auxillary contact block, MCB's shall measured and paid seperately under relevent items in this schedule, other minor spares like push button, indicator lamps, terminal block, wires for internal wiring and copper bubar shall be deemed to be included in the rate quoted by contractor.

Supply only the following items for reparing of main operating control panel at STP:-

MCB 40A TP 'C' series

Power contactor 415V, 32A, integrated auxillary contacts as per existing size suitable for mounting in the existing din rail

Power contactor 415V, 20 KW, 27 HP with integrated auxillary contact block 415V, 3.6 A as per existing size suitable for mounting in the existing din rail

Power contactor 415V, 15 KW, 20 HP as per existing size suitable for mounting in the existing din rail

Power contactor 415V, 11 KW, 15 HP with integrated auxillary contact block 415V, 3.6 A as per existing size suitable for mounting in the existing din rail

Power contactor 415V, 7.5 KW, 10 HP with integrated auxillary contact block 415V, 3.6 A as per existing size suitable for mounting in the existing din rail

Power contactor 415V, 4 KW, 5 HP with integrated auxillary contact block 415V, 3.6 A as per existing size suitable for mounting in the existing din rail

Power contactor 415V, 23 KW, 31 HP with integrated auxillary contact block 415V, 3.6 A as per existing size suitable for mounting in the existing din rail

Supply and fix in replacement of sheet metal enclosure made of MS sheet 3.15mm thick dust proof outdoor type factory made size 45cmx30cmx15cm front openable with locking arrangement, incl painting with two coats of synthetic enamel paint over a coat of red oxide primer, providing opening for cable entry and exit. The enclosure should be fastening with stud bolts, nuts and washer over the wall etc with 12 way terminal block suitable for fixing 16 Sqmm aluminium cable, mounting accessory for terminal block complete including taking down old enclosure all as specified and directed by Engineer-in-Charge.

M&L for laying of MS pipe 400mm bore medium grade for MBBR including cutting, welding and fabricating to match as per existing shape including necessary flange, bend, tee, reducer, including nuts, bolts, washers inclusive of one primer coat, two coat of synthetic enamel paint over the pipe all as directed by Engr-in-Charge

Taking up or down Mild Steel steel sewage water tubing and connections complete of size 400mm dia all as specified and directed.

Cleaning of sewage MBBR Reactor, No-01&02 tube settler by using water jet spray machine to remove the sludge deposits on the interior surface of the reactor, in tube settler, in drain etc

Chemical analysis test (COD / BOD) for treated effluent from recognized / authorized testing laboratory as and when recommended by the Engineer - in- charge.

FAB media in sealed bag for sewage plant use.

M & L for cleaning of sludge from drying beds & drains of STP by manual and removing sludge outside defence land covered with earth on top. Note: (i) All T&P for working at site shall be deemed to be included in the quoted rates (ii) The contractor is responsible for all safety of men employed by him during work at site.

M.D. CONSTRUCTION CO.

National Rewinding Works