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| 1 | M & L for removal of existing unserviceable filter media from filter bed of approximate size 7m (L) x 4.5m (W) x 2m (D) filtration plant at Main Pump House and disposal of unserviceable media/material from each filter bed to a designated place, distance not exceeding 200m including dismantling of existing air blow-down piping system, dismantling of air lateral pipes and header block tees, nozzles etc, cleaning and disinfection of entire internal surface of the filter bed using a suitable cleaning agent and/or bleaching powder, scrubbing the side walls to remove any form of deposit using a wire brush complete all as specified and directed. |
| 2 | Note: (a) Only one number of Rapid Gravity Filter Bed is to be taken for overhauling at a time and the same will be done as per instructions and as directed by Engineer-in-Charge. (b) Prior to starting of overhauling of a filter bed, the required materials for overhauling should be brought at site.(c) Entire labour, Engineer, supervisor, plant & tools required for executing the work and for safety of persons deployed on the work shall be contractor’s arrangement and responsibility. (d) During dismantling, a joint inspection will be carried out by Engineer-in-Charge with contractor and the detail of the filter media layers will be drawn. (e) Supply of all the materials of the Rapid Gravity Filter Bed for overhauling shall be measured and paid separately. However cleaning agent and/or bleaching powder are included in the quoted rates against this item. |
| 3 | M & L for refixing of serviceable header block, tees, nozzles, perforated lateral pipes, air blow down system etc. as retrieved from srl. item no. 01, same as existing arrangement using appropriate tools at Main Pump House complete all as specified and directed. |
| 4 | Note: (a) New header block, perforated pipes, air blow down pipe in lieu of unserviceable if required, and other PCC work shall be measured and paid separately. (b) The quoted rates shall be deemed to be inclusive of cost of welding work for jointing of MS pipes, jointing of existing perforated pipes and other essential works for successful operation of back washing and air blow down system. |
| 5 | Supply and filling of filter media comprising of graded gravel of particle size 25mm-40mm, in accordance with IS: 8419 Part-I, hard and preferably rounded with specific gravity not less than 2.5, free from clay, sand, loam and organic impurities of any kind, Filter gravel shall not contain more than 2 percent by mass of thin, flat or elongated pieces (in which the largest dimension exceeds three times the smallest dimension) determined by hand picking. Gravel should be free from excessive amount of limestone or shells and acid solubility determined in accordance with procedure given in Appendix B of IS: 8419 (Part-I)-1977 and should be within limits as specified in IS (not more than 10.00 % for gravel sizes 10mm or larger and 5.00% solubility for gravel sizes smaller than 10mm) complete all as specified and directed. |
| 6 | All as per item No. 3 here-in-before but of particle size 12 mm-20 mm. |
| 7 | All as per item No. 3 here-in-before but of particle size 6 mm-12 mm. |
| 8 | All as per item No. 3 here-in-before but of particle size 3mm-5mm. |
| 9 | Supplying and filling filter media comprising of filter sand consist of hard, durable grains of silica of particle size 1mm-2mm, in accordance with IS: 8419 Part-I, specific gravity not less than 2.5, uniformity coefficient less than 1.5, All grains of sand shall preferably be water worn. Silica content tested in accordance with IS: 2000, any sample of filter sand shall not contain more than 5 percent by volume of impurities, such as clay, loam, silt etc. in one hour settlement after shaking in water in accordance with procedure described in IS: 8419 (Part-I)-1977. The sand shall not contain more than 5 percent of acid soluble matter as determined by solubility test described in IS. The loss on ignition, which is a measure of the organic matter present in sand, and determined by the procedure given in Appendix C ofin IS, complete all as specified and directed. |
| 10 | All as per item No. 7 here-in-before but of particle size 0.5 mm-0.8 mm |
| 11 | Note for item No 03 to 08: (a) The new filter media layers are to be placed as per the details drawn during the joint visit in Ser Item No 1.00.(b) Each filter bed will be filled with approx 80 Cum of filter sand and gravel, the quoted rates shall be deemed to be included of labour charges. (c) After filling of rapid gravity filter bed there shall be test run and the filtered water shall be tested at NABL certified test laboratory and turbidity should conform to IS: 10500/2012 standards and the cost of same shall be included in rate quoted.(d) The filter media shall conform to all the parameters mentioned inIS: 8419 Part-I and a test certificate in this regard from supplier and from an NABL accredited laboratory for each type of sample is to be submitted for approval of GE before incorporating in work. |
| 12 | (e) The flow rate of the overhauled filter bed should conform to the designed flow rate of the water treatment Plant. In case, the turbidity does not conform to IS: 10500/2012 standards, the Contractor should be required to identify the fault and rectify the fault of the Rapid Gravity Filter beds at their own cost. |
| 13 | Labour only for washing, sieving, cleaning, drying and filling of existing filter gravels of any size retrieved during removal of existing gravel using appropriate method, for removing any kind of impurity, foreign particles and kept at suitable place at site for reuse complete all as specified and directed. |
| 14 | Supplying and fixing perforated HDPE black pipes, as per IS: 4984, of PE 100 and PN 16 for 125 mm outer dia, of approved colour with neccessary fitting complete all as specified and as directed. |
| 15 | Supplying and fixing as in replacement Ductile iron double flanged butterfly valves 400 mm nominal bore, bronze bearings, teflon bushes, SS 304 retaining ring, EPDM seals complete with gearbox and hand operated wheel fitted / fixed in position, including taking up / down old valve, complete all as specified and as directed. |
| 16 | Supplying and fixing as in replacement cast iron rising sluice valve, SS spindle 200 mm bore, flanged ends PN-1.6, ISI marked as per IS:14846/2000 and CI operating wheel fitted / fixed in position, including taking up / down old valve, including gasket, nuts, bolts and washers complete all as specified & directed. |
| 17 | Supplying and fixing as in replacement cast iron rising sluice valve, SS spindle 250 mm bore, flanged ends PN-1.6, ISI marked as per IS:14846/2000 and CI operating wheel fitted / fixed in position, including taking up / down old valve, including gasket, nuts, bolts and washers complete all as specified & directed. |
| 18 | Supplying and fixing as in replacement cast iron rising sluice valve, SS spindle 300 mm bore, flanged ends PN-1.6, ISI marked as per IS:14846/2000 and CI operating wheel fitted / fixed in position, including taking up / down old valve, including gasket, nuts, bolts and washers complete all as specified & directed. |
| 19 | Supplying and fixing as in replacement cast iron non return valve, 200 mm bore, flanged ends, PN-1.6, ISI marked fitted / fixed in position, including taking up / down old valve, including jointing materials gasket, nuts, bolts and washers complete all as specified & directed. |
| 20 | Supplying and fixing as in replacement cast iron non return valve, 250 mm bore, flanged ends, PN-1.6, ISI marked fitted / fixed in position, including taking up / down old valve, including jointing materials gasket, nuts, bolts and washers complete all as specified & directed. |
| 21 | Supplying and fixing as in replacement cast iron non return valve, 300 mm bore, flanged ends, PN-1.6, ISI marked fitted / fixed in position, including taking up / down old valve, including jointing materials gasket, nuts, bolts and washers complete all as specified & directed. |
| 22 | M&L for rubbing, scrapping and cleaning of lime mixing tank and alum mixing tank including replacement of 63 mm uPVC pipe (Sch 80) of length 10 metre complete all as specified and directed. |
| 23 | M&L for dewatering of clariflocculator unit having two concentric tanks circular in shape of 20 metre dia and 3.50 metre depth by means of pump set of apprpriate capacity and thorough cleaning of clariflocculator unit including rubbing, scraching and taking out the silt, mud, sludge etc including vegitation from the unit and throwing it away at distance not less than 50 metre, cleaning and disinfection of entire internal surface of the chamber using suitable cleaning agent/ bleaching powder, cleaning of internal tubes using high velocity water jet complete all a specified and directed. |
| 24 | Note: (a) Bailing out the entire water from clariflocculator unit, cleaning of inlet line shall be part of the job.(b) Necessary T&P shall be arrange by the Contractor by his own arrangement.(c) Connection members such as aerator, alum mixture chamber, inlet & outlet channels, suppoting pillars, cleaning of tiles of channel, clearing of area along the railing of clariflocculator unit shall be part of job and no extra cost will be paid. |
| 25 | Supply and fixing as in replacement Ductile iron Foot Valve, PN 10, EPDM seal with Galvanized steel strainer, as per IS 4038 of size 150mm, complete all as specified and directed. |
| 26 | S & F ductile iron pipe fittings such as bends, tapers, tee pieces single branch, \"Y\" junction, collars, caps and plugs etc spigot socketed or flanged ends type of size up to 600mm nominal bore conforming to IS-9520/2000 with pressure rating PN-1 (all the fittings shall be coated for rust prevention i.e. external coating zinc rich paint with finishing layer of bituminous as per Annexure - A of IS:9523/2000 and internal lining shall be of cement mortar with seal coat as per Annexure \"B\" of IS-9523/2000) complete all as specified and directed by Engineer - in - Charge. |
| 27 | Taking down cement plaster/ terrazo finish on brick wall including racking out joints, hacking for keys scrubbing down with water all as specified and directed by Engineer - in - Charge. |
| 28 | M & L two coats of distemper oil emulsion over chalk whiting,preparatory to distempering, on newlyplastered surfaces of walls including preparation of surfaces all as specified and directed by Engineer - in - Charge. |
| 29 | M & L two coats of distemper oil emulsion on old decorated plastered surfaces of walls including preparation of surfaces by washing, rubbing down and stopping of distempered surfaces complete all as specified and directed by Engineer - in - Charge . |
| 30 | M & L 10mm thick rendering in Cement Mortar 1:6 on fair faces of brick work or concrete surfaces finished even and fair without using extra cement complete all as specified and directed by Engineer - in - Charge. |
| 31 | M & L 15mm thick rendering in Cement Mortar 1:4 on fair faces of brick work or concrete surfaces mixed with water proofing compound finished even and smooth without using extra cement complete all as specified and directed by Engineer - in - Charge. Note:- The rates do not include for the supply of integral water proofing compound, which shall be paid for in addition at “supplied only rates separately, as applicable. |
| 32 | M & L two coats of cement base paint over alkali resistant primer, preparatory old surfaces after complete removal of existing treatment all as specified and directed by Engineer - in - Charge. |
| 33 | M & L applying two coat of cement base paint on new plastered surfaces of walls including preparation of surfaces complete all as specified and directed by Engineer - in – Charge |
| 34 | Supply only liquid waterproofing compound all as specified and directed by Engineer - in - Charge. |
| 35 | M & L two coat of white wash on old decorated plastered or unplastered surfaces of ceiling including preparation of surfaces complete all as specified and directed by Engineer - in - Charge . |
| 36 | M & L for preparation of old painted steel surfaces of any description over 10 cm width or girth not otherwise described and applying two coat of synthetic enamel paint all as specified and directed by Engineer - in - Charge . |
| 37 | Demolition of cement concrete (un-reinforced) in floors / pavings, (below or above ground level) and of any description and in any position not otherwise specifically provided for all as specified and directed by Engineer - in - Charge . |
| 38 | M & L for 75mm thick cement concrete type D-2 (1:4:8) using 40mm graded stone aggregate as in sub floors, sub bases etc all as specified and directed by Engineer - in - Charge. |
| 39 | Providing and laying 80mm thick factory made chamfered edge cement concrete paver block of M-40 grade with approved colour, design & pattern as in footpath, parks, lawns, drive ways or light traffic parking etc., of required strength, thickness & size/ shape, made by table vibratory method using PU mould, laid in required colour & pattern over and including 50mm thick compacted bed of coarse sand, compacting and proper embedding/ laying of interlocking paver blocks into the sand bedding layer through vibratory compaction by using plate vibrator, filling the joints with fine sand and cutting of paver block as per required size and pattern, finishing and sweeping extra sand; complete.all as specified and directed by Engineer - in - Charge. |
| 40 | Dismantling floor or wall tiles including cement mortar bedding, removing serviceable tiles to store and rubbish off the premises complete all as specified and directed by Engineer - in – Charge. |
| 41 | M & L for non skid ceramic coloured tiles, 7 to 8 mm thick (square/ rectangular) area of each tile exceeding 0.06 sqm but not exceeding 0.11 sqm, in floors etc. set and jointed in neat cement slurry and pointed in white cement paste pigmented to tile shade over and including 15mm thick cement and sand screed (1:4)complete all as specified and directed by Engineer - in - Charge. |
| 42 | M & L for glazed ceramic coloured tiles 7mm thick 350 x 250mm size in vertical surface set and jointed in neat cement slurry and pointed in white cement paste pigmented to the shade over and including 10mm thick cement sand plaster (1:3) complete all as specified and directed by Engineer - in - Charge. |
| 43 | Taking down chowkhats or frames with shutters without taking off shutters from the frame exceeding 1.5 Sqm but not exceeding 4 Sqm each andall as specified and directed by Engineer - in - Charge. |
| 44 | Taking down chowkhats or frames with shutters without taking off shutters from the frame not exceeding 1.5 Sqm each andall as specified and directed by Engineer - in - Charge. |
| 45 | S & F pressed steel door frames with one or more rebates including necessary fixing lugs, hinges, lock strike plate etc, size of frame 105X60mm , complete all as specified and directed by Engineer - in – Charge . |
| 46 | S & F flush shutter 30mm thick solid core construction with particle board core and plywood face panels commercial type on both sides with lipping / frame to match all as specified and directed by Engineer - in - Charge. |
| 47 | S & F Solid PVC door frame factory made of size 50mmx 47mm made out of 5mm plain colour PVC sheet reinforced with MS Square tubejointed , supplying and fixing in opening complete all as specified and as directed by Engineer-in-Charge |
| 48 | S&F Factory made solid panel PVC door shutter 30mm thick (Style) consisting of frame made out of MS tubes for top and bottom rails. MS frame shall be covered with heat moulded coloured PVC ’C’ channel having a PVC sheet strip of 20mm width stuck inside with solvent cement for stiles and plain colour PVC sheets for top rail, lock rail and bottom rail on either side and as gap insert for top rail and bottom rail; Panelling of plain colour PVC sheet to be fitted in the MS frame welded/ sealed into the stiles and rails with suitable PVC sheet beading, and jointed together with solvent cement, supplying andfixing in the frame at site as per specification complete all as specified and as directed by Engineer-in-Charge. |
| 49 | Cutting hole in brick wall built in cement mortar not exceeding half brick for fixing holdfasts in jambs and making good dismantled portion in cement mortar 1:3 or cement concrete 1:2:4, type B – 1 all as specified and directed by Engineer - in - Charge. |
| 50 | S & F mild steel work for hold fasts, wall ties, bands, strapsclamps, including bolts, if required; hooks (stay), handles for manhole covers, hook and pintle hinges, hooks for hanging fans; and similar small articles etc confirming to Fe-290 Gde E-165 all as specified and directed by Engineer - in - Charge. |
| 51 | S & F aluminium handle cast type anodised, 150mm long all as specified and directed by Engineer - in - Charge. |
| 52 | S&F100 mm size butt hinges, medium weight cold rolled mild steel complete all as specified and as directed by Engineer-in-Charge. |
| 53 | S&F75 mm size butt hinges, medium weight cold rolled mild steel complete all as specified and as directed by Engineer-in-Charge. |
| 54 | S & F aluminium alloy anodized sliding door bolt with hasp and staple (bolt type) and fixing clips of sheets cast or extruded section and fixing bolts of extruded section or cast aluminium alloy 300mm size all as specified and directed by Engineer - in – Charge . |
| 55 | S & F Aluminium anodised barrel tower bolt of extruded section 150mm long all as specified and directed by Engineer - in - Charge |
| 56 | S & F floor door stopper 140mm of aluminium alloy body and tongue anodized with hard drawn steel spring fixed in floor all as specified and directed by Engineer - in - Charge. |
| 57 | S & F Aluminium anodised barrel tower bolt of extruded section 100mm long all as specified and directed by Engineer - in - Charge |
| 58 | Hacking out old broken glass (any thickness, size, quality or description) from wooden frames or stone, concrete or brick surrounds, glazed with putty or fixed with beads complete all as specified and directed by Engineer - in - Charge .. |
| 59 | S & F 4mm thick sheet glass ordinary quality and glazing with aluminium snap beading on aluminium frame for door, windows and ventilators in square not exceeding 0.50 sqm in each pane all as specified and directed by Engineer - in - Charge . |
| 60 | M & L providing two coats of synthetic enamel paint over a coat ofpink primer on new wooden surfaces including preparation of surface of any description over 10 cm width or girth all as specified and directed by Engineer - in - Charge . |
| 61 | M&L for cleaning of wall surface to remove dust, loose particles, chipped out, removing of existing plaster and any type of exixsting treatment etc with suitable technique depending on site condition and chipping out any visible cracks in \"V\" groove pattern then filling those crack with Sika latex/ SBR 100 putty.Product : Latex/ SBR 100 putty of M/s Sika or equivalent product of makes M/s Fosroc or M/s Pidlite. |
| 62 | M&L providing and applying 10 mm thick plaster with Sika Monotop-122F mixing with 4.5 - 4.8 ltr water per 30 kg of Sika Monotop. Material should have Compressive strength ≥ 55 MPa after 28 days, Tensile strength in flexure ≥ 9.0 MPa after 28 days, Tensile adhesion strength ≥ 12.0 MPa after 28 days.Product : Sika Monotop -122F of M/s SIKA or equivalent product of makes M/s Fosroc or M/s Pidlite. |
| 63 | M&L for providing and applying solvent free, moisture insenstive epoxy resin based putty to the junction of wall and pipe for dia of pipe 400 to 600 mm penetration joint to concrete .Product : Sikagard -694 F(I), Yield 0.6 ltr/Kg of M/s SIKA or equivalent product of makes M/s Fosroc or M/s Pidlite. |
| 64 | M&L providing and applying high performance flexible acryliccementitious waterproofing coating having Tensile strength ≥ 2.0 MPa, Tensile adhesion strength ≥ 2.0 MPa. Material shall be applied with base coat @ 1.0 Kg/Sqm with fibre reinforcement mesh of Top coat @ 1.2 kg/Sqm above over a coat ofprimer @ 0.20 Kg/Sqm after proper surface preparation . Material shall be prepared by mixing Acrylic polymer with portland cement with selected aggregate and additives in ratio 1:1.5 by weight.Product :SikaTop - 109 Seal IN of M/s SIKA or equivalent product of makes M/s Fosroc or M/s Pidlite. |
| 65 | M&L for glass mosaic coloured tiles of size 300 x 300 x 8mm thick of premium quality fixed on wall by applying deformable cementitious adhesive with no vertical slip high performance after completing water proofing treatment complete all as specified and directed. |
