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| 1 | Material and labour for taking out and washing properly the old filter media by water pressure or any suitable method including re-loading the washed filter media into the iron removal filter vessel 20000 GPH flow capacity of size(2378 mm dia x 2044 mm overall height)/ 10000 GPH ( overall size 1751mm dia x 2200 mm overall height) i.e graded gravelsand sand including complete removal of existing treatement of internal surface of iron removal plant and applying two coats of black bitumen paint complete all as specified and directed. Location: Jafferpore, Kancharapara and LOS DUM DUM.Note:- Contarctor shall submit water test report before realeasing any payments. |
| 2 | Taking out unserviceable filter media complete from pressure filterand depositing the same and removal of unserviceable materials to a distance n.exc 50m. The capacity and size ofpressure filter and oxidation chamber are as under:- |
| 3 | Pressure filter of capacity 20000 GPH (overall size 2378mm dia x 2044 mm overall height) and oxidation chamber of capacity 10000 GPH (overall size 1598mm dia x 1667mm overall height).Location:- JAFFERPORE &LOS Dum Dum |
| 4 | Pressure filter of capacity 10000 GPH (overall size 1751mm dia x 2200 mm overall height) and oxidation chamber of capacity 10000 GPH (overall size1019 mm dia x 1760 mm overall height).Location:- Kancharapara |
| 5 | Material and labour for filling and laying in different layers of new washed filter media of consisting gravels of different sizes and sand in to the pressure filter for following size :- |
| 6 | Treated green sand suitable for filter media of 16/32 mesh inside the pressure filter up to 6 layer from bottom. |
| 7 | Coarse sand suitable for filter media of 16/32 mesh inside the pressure filter up to 6 layer from bottom. |
| 8 | Gravels of size 1/8\" to 1/4\"for filter media. |
| 9 | Gravels of size 1/4\" to 1/2\" for filter media. |
| 10 | Gravels of size 1/2\" to 3/4\" for filter media. |
| 11 | Gravels of size 3/4\" to 1\"for filter media. |
| 12 | Gravels of size 1\" to 1½ \"for filter media.Note for item No 3.10 to 3.70:- Punned down thickness shall be measured for payments. |
| 13 | Supply and fix in repair PVC strainer tube for pressure filter as per existing shape and size complete all as specified and directed. |
| 14 | Supply and lay manganese di-oxide (MnO2) suitable for use in oxidation chamber and flow testing as per existing capacity complete all as specified and directed. |
| 15 | Material and labour for cleaning and washing properly the old catalyst (MnO2) by water pressure or any suitable method and drying including loading the media into the oxidation chamber and testing complete all as specified and directed. |
| 16 | Material and labour for dis-connecting the centrifugal pump set of capacity 5HP to 10 HP and repair, rewinding with good qualitymotor varnishing winding to improve the insulation capacity and refixing the pump set after repair and overhauling complete all as specified and directed.Note: Spares shall be measured and paid separately under respective items as supply only. |
| 17 | Supply only bearing of existing make and capacity. |
| 18 | Supply only Gasket set of existing make and capacity. |
| 19 | Supply only coupling of existing make and capacity. |
| 20 | Supply only fan blade of existing make and capacity. |
| 21 | Supply only CI Impeller of existing make and capacity. |
| 22 | Supply only Copper winding wire of existing guage. |
| 23 | Material and labour for repair, servicing, and overhauling of Altoc dozing pump 10kg/sqcm capacity and replace the unserviciable parts and refixing the pump after repair and overhauling complete all as specified and directed.Note: Spares shall be measured and paid separately under respective items as supply only. |
| 24 | Supply only spacer of existing size. |
| 25 | Supply only spacer spring of existing size. |
| 26 | Supply only pump housing of existing size. |
| 27 | Supply only Solenoid coil body of existing size. |
| 28 | Supply only Pulsar circuit of existing size. |
| 29 | Supply only Anti siphon valve of existing size. |
| 30 | Supply only Anti siphon spring of existing size. |
| 31 | Material and labour for repair and rewinding and overhauling of Altoc dozing motor of 10kg/sqcm capacity and replacement of theunserviceable parts and refixing the motor after repair and overhauling complete all as specified and directed.Note: Spares shall be measured and paid separately under respective items as supply only. |
| 32 | Supply only pump tube of existing size. |
| 33 | Supply only injection check valve of existing size. |
| 34 | Supply only duck bill of existing size. |
| 35 | Supply only \"O\" ring of existing size. |
| 36 | Supply only copper wire of existing guage. |
| 37 | Material and labour for taking out burnt submersible pumping set of capacity 10 HPto 20 HP from bore well located at Jaffarpore, Kancharapara and LOS Dum Dum and dis-connecting of electric cable from the panel board and dismantling 80 mm to100 mm dia CI/GI column pipe by using chain pulley arrangement complete all as specified and directed. Note : The quoted rate shall be included for transporation of pumping set from site to workshop and return to the site. |
| 38 | Material and labour for taking out the pump of 10 HPto 20 HPcapacity from the motor and opening of submersible pump for repair and replacement of unserviceable parts and refixing the pump after repair and testing complete all as specified and directed.Note: Spares shall be measured and paid separately under respective items as supply only. |
| 39 | Supply only pump head of existing size. |
| 40 | Supply only gun metal bowl bush of existing size. |
| 41 | Supply only CI impeller of existing size. |
| 42 | Supply only impeller bush of existing size. |
| 43 | Supply only discharge case bush of existing size. |
| 44 | Supply only oil seal of existing size. |
| 45 | Supply only shaft sleeve of existing size. |
| 46 | Supply only shaft nut of existing size. |
| 47 | Supply only sand guard of existing size. |
| 48 | Supply only stuffing box bearing of pump |
| 49 | Material and labour for rewinding of submersiblemotor of capacity 10HP to 20HP with super enameled copper wire including removing burnt winding, cleaning of slots separation of rotor and starter making insulation to all joint and replacement of unserviceable parts and refixing of motor and testing and commissioning complete all as specified and directed.Note: Spares shall be measured and paid separately under respective items as supply only. |
| 50 | Supply only bearing bush upper of existing size. |
| 51 | Supply only bearing bush lower of existing size. |
| 52 | Supply only balancing ring of existing size. |
| 53 | Supply only jointing kit of existing size. |
| 54 | Supply only oil seal of existing size. |
| 55 | Supply only gun metal rotor housing bush of existing size. |
| 56 | Supply only super enamelled copper winding wire of existing guage. |
| 57 | Supply and fix in repair stuffing boxshaft with stud holes of motor of capacity 10HP to 20HP of existing size complete all as specified and directed. |
| 58 | Supply and fix in repair open type impeller made of CI suitable for motor of capacity 10HP to 20HP of existing size complete all as specified and directed. |
| 59 | Material and labour for lowering of the submersible pumping set of 10HP to 20HP into bore well by using the chain pulley arrangement with fixing of column pipe of size 80mm to 100mm dia, including nut, bolts, washers, and rubber gasket in replacement and tightening of submersible cable with pipe and connected of submersible cable from existing panel board. complete all as specified and directed. |
| 60 | Supply and fix in repair direct-on-line startersin sheet-steel enclosure type MKI for motor rating 7.5 HP , AC-3 duty, 415V, 50Hz suitable for three phase supply complete all as specified and directed. |
| 61 | All as per item No 16.00 here-in-before butof capacity 10 HP and -ditto-. |
| 62 | All as per item No 16.00 here-in-before butof capacity 15 HP and -ditto-. |
| 63 | All as per item No 16.00 here-in-before butof capacity 20 HP and -ditto-. |
| 64 | Material and labour for servicing and overhauling/repair of parts of air compressor of 5HP capacity vessel cylindrical in shape after dismantling it from its position, drying up of cylinder by de-watering complete system and washing with anti scalant chemical with the help of external compressor of 10Kg pressure, filling up of oil in its cylinder head after opening the head and re-fixing it including testing complete with existing system complete all as specified anddirected.Note: Spares shall be measured and paid separately under respective items as supply only. |
| 65 | Supply only compressor valves of existing size. |
| 66 | Supply only bearings of existing size. |
| 67 | Supply only backup ring of existing size. |
| 68 | Supply only pressure breaker for radial ring of existing size. |
| 69 | Supply only tangent ring of existing size. |
| 70 | Supply only gasket of existing size. |
| 71 | Supply only DOL starter 5HP 3 Ph, 415 V including relay and contactor. |
| 72 | Material and labour for servicing of air compressor of 5HP capacity vessel cylindrical in shape after dismantling it from its position, drying up of cylinder by de-watering complete system and washing with anti scalant chemical with the help of external compressor of 10Kg pressure, filling up of oil in its cylinder head after opening the head and re-fixing it including testing complete with existing system complete all as specified anddirected. |
| 73 | Supply and fix 3 core flat copper cable, PVC insulated, PVC sheathed for submersible pump set 1100 volt 6 sqmm size includin taking down the old unserviceablecable complete all as specified and directed. |
| 74 | All as per item No 22.00 here-in-before butof size 4 sqmm and -ditto-. |
| 75 | Supply and fix in repair CI sluice valve size 100 mm dia PN 1.6 conforming to IS-14846 flanged end complete with iron wheel head and stainless steelspindle complete all as specified and directed. |
| 76 | Supply and fix in repair 100mm dia cast iron Non return valve PN-1.6 flanged end swing type with nitrile rubber flap, conforming to IS-1538 complete all as specified and directed. |
| 77 | All as per item No 25.00 here-in-before butof 150mm dia and -ditto-. |
| 78 | Taking down CI/DI/GI pipe of 100mm dia for cleaning sludge and other foreign particles with the help of narrow steel wire brush tied in a stiff rod and de-scaling of pipe by using suitable chemical / compound, removing cracked / unserviciable fittings from the pipeline etc and refixing / relaying the pipe on its original position all as specified anddirected. |
| 79 | Supply and fix in repair DI specials of 80mm to 150mm bore such as bends (any type, radius and angle) tapers any type, Tee equal / unequal with flanged and socket or in any combination in any length as per site requirement, tail piece straight , bend, increasing, decreasing or double socket etc.) tee pieces single branch \"Y\" junction, double branch,cross (all sockets or sockets and spigot) collars, caps and plugs including ring washer gaskets including taking old unserviciable existing DI special fittings complete all as specified and directed. |
| 80 | Supply and fix in repair rubber gasket joints for CI/DI pipes of bore 100 mm complete all as specified and directed. |
| 81 | Supply and fix in repair CI foot valve / NRVof size 100 mm boreinstalled at suction side of the pump conforming to IS-4038 flanged end complete all as specified and directed. |
| 82 | Material and labour for PCC (1:2:4) type B1 (using 20 mm graded stone aggregate) in bases / pedestals for pipe lines mud stops or chamfered on edges complete all as specified and directed. |
| 83 | Material and labour for 100mm thick PCC (1:3:6) type C2 (using 40mm graded stone aggregate) as in sub base of floor and paving etc and finished the surface fair and even complete all as specified and as directed. |
| 84 | Materials and labour for boring of holes of size up to 100mm dia under road without disturbing the top surface of the road and taxiway for passing through the pipe complete all as specified and directed Note-Necessary infrastructure required for boring shall by arranged by the contractor and cost of the same included in quoted rates. |
| 85 | Excavation in trenches n. exc.1.5m wide and n. exc 1.5m depth for laying of pipe line and getting out in soft/loose soil complete all as specified and directed. |
| 86 | Removing excavated material (soil) to a distance n. exc 50m and depositing where directed at a level not exc 1.5 m above the starting point complete all as specified and directed. |
| 87 | Returning filling in including spreading leveling wateringand well ramming in layers not exceeding 25cm in soft/loose soil complete all as specified and as directed. |
| 88 | Supply and fix in repair cast iron butterfly valve 100mm dia hand operated PN-1.6 conforming to IS:13095 complete all as specified and as directed. |
| 89 | All as per item No 37.00 here-in-before butof 150mm dia and -ditto-. |
| 90 | Supply and fix in repair pressure gauge suitable for bearing pressure upto 20 Kg/sqcm complete all as specified and directed. |
| 91 | Material and labour for cleaning once in a month by spraying of weeds herbicide for kill unwanted vegetation around near E/M installation, cutting grass, removing unwanted bushes, removing debris etc and making good of undulated ground by filling fresh soil and levelling the area to existing ground level, removing unwanted debris from thesite complete all as specified and directed. Note:-(i) Location - Jafferpore and approx area - 1600.00 sqm.(ii) In case of damage to any existing assets such as UG cables, pipelines or any type of things, contractor shall be make good as per the existing without any extra cost. |
| 92 | - ditto- all as per Ser item No 40.00 here in before but inLocation - Kancharapara and approx area - 1200.00 sqm and -dittio-. |
| 93 | - ditto- all as per Ser item No 40.00 here in before but inLocation - LOS Dum Dum and approx area - 900.00 sqm and -dittio-. |
| 94 | - ditto- all as per Ser item No 40.00 here in before but inLocation - Barasat camp and approx area - 600.00 sqm and -dittio-. |
| 95 | Supply only calcium hypo-chloride 65% to 70% chloride content in chlorine complete all as specified in Generic Specification mentioned in Particular Specification of Tender Documents as Appendix- \"A\". |
| 96 | Supply only Ferric alum complete all as specified in Generic Specification mentioned in Particular Specification of Tender Documents as Appendix- \"B\".Note for item No 44.00 & 45.00 :- (i) The contractor shall produce original purchase voucher with manufacturer\"s test certificate mentioning date of manufacturing, batch No, date of expiry of materials etc before releasing payment.(ii) The contractor shall also produce test certificate from GOVT / NABL accredited labs to confirm Generic Specification as mentioned in Particular Specification of Tender Document. |
| 97 | Supply only crystal alum complete all as specified and directed. |
| 98 | Labour only to attend breakdown of motor starter panels to repair the contactor terminals, push bottons, cable joint terminals, connector terminals, repairing all kind of wiring of DOL / automatic star delta starter ranging from 5HP to 20HP capacity, minor repair of single phase preventor, phase sequenzer, delay timer, relay, R-Y-B indicators, minor repair of Ammeter and Volt meter etc, replacement of burnt out PVC insulated copper wire, copper thimble, re-connect the same after thoroughly clean and testing complete all as specified and directed. Note: Spares shall be measured and paid separately under respective items as supply only. |
| 99 | Supply only contactor of capacity 25 Amp, 3 pole, 415 volt, Type MNX 22 Including auxilary contact block 1 NO & 1 NC complete all as specified and directed. |
| 100 | Supply only thermal overload ralay of range 28-40 Amp complete all as specified and directed. |
| 101 | Supply only star delta timer adjustable type from 3 to 120 sec complete all as specified and directed. |
| 102 | Supply only single phase preventor SPPR type of existing size complete all as specified and directed. |
| 103 | Labour only to attend major breakdown / complaints of iron removal plants of any size and type installed at Jaffarpore, Kancharapara and LOS Dum Dum including back washing of plant, agitation of sand filter media with suitable water pressure or compressor, adjustment of handles / crutches, repairing of pressure guage, flow meter, cleaning of caustic soda and lum container, clearing of all kind of blockages inside the chamber, valves, junctions, pipes etc, including material and labour in repair gaskets of chamber opening doors, repair of nuts and bolts etc and testing after repairing of plant and giving OK report physically to Engineer-in-Charge complete all as specified and directed. |
| 104 | Labour only to attend breakdown of bleaching / altoch GP / Decrin doser system, removing blockage of chlorine residuals from injector pipe lines, cleaning of NRV, nozzles and proper washing of FRP bucket / tank / container, minor repair of agitator, motor and minor spares such as clips, clamps, check nut etc complete all as specified anddirected. Note: Contractor shall provide suitable technician of the said equipment for attending breakdown at Jafferpore, Kancharapara and LOS Dum Dum. Vehicle for conveyance and shifting of store or materials or any other purpose shall be born by the contractor only. |
| 105 | Supply and fix 25 Nos (each packet) chlorine refill catridge of stequa 411 AE complete all as specified anddirected. |
| 106 | Material and labour for cleaning / flushing out mud of bore well after lifting of submersible pumsets of capacity 10 to 15HP including pulling out of column pipe upto full depth of all pipes of size 80mm to 100mm flanged type and cleaning of column pipes and replacing corroded out nut bolts of flanged column pipes of all flange joints and replacing rubber gasket of all defective joints, after dismantling all kind of electric and water supply connections, cleaning of bore well upto 100 meter or as per existing depth by using heavy compressor having pressure of 20Kg or above to flush out the muddy and dirty water with adequate pressure till the achievement of smell free water, cleaning of porous of wall by injecting dry air through compressor or by using compressor air blower, testing of TDS of water complete at site after lowering the pump motor sets and cable complete all as specified and directed. Location: Jafferpore, Kancharapara and LOS DUM DUM. |
| 107 | Material and labour for water testing of samples collected from outer pockets i.e, Jafferpore, Kancharapara, Barasat and LOS Dum Dum for chemical and biological analysis of all parameters as per PHED norms from the National Accredited Testing Labs in every alternate month.Notes:- (a) Contractor has to arrange suitable sample collector to all 4 x pump houses at a time as mentioned above as per lab requirement (b) Each sample shall be labelled with location, date and time (c) Contractor has to arrange suitable manpower and vehicle to collect the samples from 4 x locations as mentioned above alongwith conveyance from site to lab without any extra cost.(d) Sample collected from 4 Nos location i.e. Jafferpore, Kancharapara, Barasat and LOS Dum Dum shall be measured as 1 No Job for payments. |
| 108 | Material and labour for complete removal of existing treatement of old painted metallic surfaces of iron removal plants, Catalyst/Oxidation chambers, Pressed steel Over Head Reservoirs, misc metallic surfaces of water supply installations of Jaffarpore, Kancharapara, LOS Dum Dum and Barasat over 10cm width or girth and applying two coats of anti corrosive synthetic enamel paint over a coat of metalic zinc chrome primer including preperation of surfaces complete all as specified and directed.Note:-(i) Necessary arrangement for ladder/scafolding/any other structure shall be arranged by the contractor. (ii) As the this nature of work involves Over Head Tank cleaning and painting, Contractor has to take adequate safety precautions while doing work on high staging. |
| 109 | Material and labour for 15mm bore (nominal) Gl tubing (medium grade) including all necessary pipe fittings (such as bends, elbows, tees, shortpieces, connectors, back- nuts, reducer, diminishing pieces, caps, plugs and unions, etc.) and laid in trenches, on wall, under floor, under road etc., including making good disturbed portion including taking down old unserviciable existing GI pipe complete all as specified and directed. |
| 110 | All as per Item No 54.00 here-in-before but 20mm bore (nominal) and -ditto-. |
| 111 | All as per Item No 54.00 here-in-before but 25mm bore (nominal) and -ditto-. |
| 112 | All as per Item No 54.00 here-in-before but 40mm bore (nominal) and -ditto-. |
| 113 | All as per Item No 54.00 here-in-before but 50mm bore (nominal) and -ditto-. |
| 114 | All as per Item No 54.00 here-in-before but 80mm bore (nominal) and -ditto-. |
| 115 | All as per Item No 54.00 here-in-before but 100mm bore (nominal) and -ditto-. |
| 116 | Material and labour for PCC (1:3:6) type C1 (using 20 mm graded stone aggregate) as in pedestal pillars, foundations, coping and other misc supports to external water supply pipe line installation complete all as specified and directed. |
| 117 | Material and labour for complete removal of existing treatement of old painted metallic surfaces of pipe surfaces of girth not exc 60cm of CI/GI/DI/MS pipeline and fittings exposed around the water supply installations of size 80mm/100mm/150mm dia and applying two coats of anti corrosive synthetic enamel paint over a coat of metalic zinc chrome primer including preperation of surfaces complete all as specified and directed. |
| 118 | Supply and lay in repair of CPVC pipes 40mm outer dia SDR-11 & plain CPVC SDR-11 fittings in trenches complete all as specifiedand directed. |
| 119 | All as per Item No 63.00 here-in-before but 32mm outer dia and -ditto-. |
| 120 | All as per Item No 63.00 here-in-before but 25mm outer dia and -ditto-. |
| 121 | Material and labour for construction of brick masonry valve pitof size 1200x1200x1200mm (internal dimension) with one brick thick PCC (1:4:8) type D-2 (using 40mm gradedstone aggregate) as in foundation concrete including PCC (1:3:6) type C-1 (using 20mm graded stone aggregate) as in bedding and coping 10mm thick cement plaster incement mortar (1:4) internally and externally upto 15 cm below ground level providing valve pit 50x50x6mm angle iron frame all round the fixed point by means of 4 Nos hold fast 150mm long made out of flat iron 40 x 6 mm embedded in PCC block (1:2:4) type B-1 (using 20mm gradedstone aggregate) of size 230 x200 x100mm. including provision of hinges welded with angle iron frame and mild steel cover 3 mm thick, mild steel handle of suitable and size welded with mild steel cover and suitable locking arrangement and applying two coats of synthetic enamel paint over a coat of red-oxide primer including necessary excavation work in soft/ loose soil including dismantling of unserviciable existing valve pit complete all as shown in Drawing No AF/TD/240/15 of sheet 1/2 & 2/2 and directed. |
| 122 | Material and labour for cutting existing CI/GI/DI water supply line with the help of electric cutting tools or manually, reducing to required length before laying and blockage removal, cleaning of particular joint etc and making good after repairing ofsize upto 100mm including leakage testing complete all as specified and directed. |
| 123 | Material and labour for taking out sluice valve of 80mm diaand refacing / regrinding and re-threading, replacing gland packing, nut bolts of flange and arresting leakage of stuffing box and fixing back in valve pit chamber as per existing position and testing complete all as specified and directed. |
| 124 | All as per Item No 68.00 here-in-before but 100mm dia and -ditto-. |
| 125 | All as per Item No 68.00 here-in-before but 150mm dia and -ditto-. |
| 126 | Material and labour for re-packing, stuffing box of 80mm sluice valve spindle including taking apart and re-assembling including replacement of old unserviciable packing sheet, nut/bolts etc complete all as specified and directed. |
| 127 | All as per Item No 71.00 here-in-before but 100mm dia and -ditto-. |
| 128 | Supply and fix mild steel screw bolts diameter of neck 16 to 20mm (machine made) with hexagonal or square heads at one end and screwed the other, or screwed both ends, each screwed end to be fitted with washers and one hexagonal or square nut, length of bolt exc 5cm and n exc 10cm long complete all as specified and directed. |
| 129 | Supply and fix in repair 50mm bore gun metal globe or gate valve, with iron wheel head, screwed both ends for iron pipe complete all as specified and directed. |
| 130 | All as per item No 74.00 above but 40mm bore and -ditto-. |
| 131 | All as per item No 74.00 above but 25mm bore and -ditto-. |
| 132 | All as per item No 74.00 above but 20mm bore and -ditto-. |
| 133 | All as per item No 74.00 above but 15mm bore and -ditto-. |
