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| 1 | Taking up unserviceable/ defective CI/ DI/ MS/ PPR water mains (including all fitting) with spigot/ socketed / flanged ends including disconnecting pipes and fittings in any position complete all as specified and directed for the following sizes:- |
| 2 | 100 mm Dia |
| 3 | 150 mm Dia |
| 4 | 200 mm Dia |
| 5 | 300 mm Dia |
| 6 | Refixing of old CI/ DI/ MS Pipe and connection in new or old position including fittings with old/ new bends, elbows, socket, nipple, tapers, and reducers etc as per site requirement and laid in trenches and testing for leakages complete all as specified and directed for the following sizes:- |
| 7 | 100 mm dia |
| 8 | 150 mm dia |
| 9 | 200 mm dia |
| 10 | 300 mm diaNotes for item No 2.01 to 2.04 :- (a) Excavation and Earth work shall be measured and paid separately. |
| 11 | Excavation in trenches not exceeding 1.5 m width and not exc 1.5 m in depth and getting out in hard/ dense soil for removing/ laying of pipe line complete all as specified and directed. |
| 12 | Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm in any type of soil complete all as specified and directed. |
| 13 | Removing excavated material (soils) n exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and directed. |
| 14 | S&F CI / DI specials such as bends (any type, radius or angle) tapers any type (Straight, bend, increase, decrease or double socket etc) tee pieces, single \"Y\" branch, double branch cross (all sockets, socket and spigots, collars, cap plugs etc up to 150 mm bore complete all as specified and directed. |
| 15 | All as per item No 6.00 above but for 200 mm bore to 300 mm bore. |
| 16 | Burning out lead joint in position for following sizes of CI/ DI pipe, removing old lead complete all as specified and directed :- |
| 17 | 100 mm Dia |
| 18 | 150 mm Dia |
| 19 | 200 mm Dia |
| 20 | M&L for run lead joint for CI pipe/ DI pipe including spun yarn etc for spigot and socket pipes and fittings complete all as specified and directed for the following bore of pipes:- |
| 21 | 100 mm Dia |
| 22 | 150 mm Dia |
| 23 | 200 mm Dia |
| 24 | S&F in repairs providing, fixing and repairing Cast Iron (CI) / Ductile Iron (DI) Mechanical Coupling / Mechanical Joint / D-Joint (heavy duty, split type, with long collar), including all jointing materials such as rubber rings, bolts, nuts, and washers etc., suitable for MS/ CI/ DI/ GI/ PVC pipe lines of the following sizes, as required for repairing leakages, complete all as specified and as directed.Notes:(i) Excavation and earth work shall be measured and paid separately.(ii) The quoted rate shall be inclusive of cutting of any type of existing pipe and all other items/ materials required for proper fixing and functioning of the joint.(iii) The quoted rate is also deemed to be inclusive of all necessary T&P, including pipe cutting equipment, pump sets for de-watering, JCB/ Excavator for excavation (if required), etc. No extra payment shall be admissible on this account. |
| 25 | 100 mm Dia |
| 26 | 150 mm Dia |
| 27 | 200 mm Dia |
| 28 | Cutting the existing road of any kind straight by manual, depth and width not less than 30 cm for pipes up to 100 mm dia and 60 cm for pipes from 150 mm to 150 mm dia and 75 cm for pipes above 400 mm dia and filling back with excavated soil up to 75 % road portion and 25 % shall be made with cement concrete 1:2:4 type B1 (using 20 mm graded stone aggregate complete all as specified and directed. |
| 29 | Supply and lay Pipes in repairs MS black ERW Steel including specials having nominal dia 150 mm of thickness 6.0 mm as per IS 3589 - 2001, Grade - 330 with plain ends and specials by welding, leak testing of line laid in trenches / floors/ walls / ducts complete all as specified and directed.Note: (i) Quoted rate is inclusive of supply and fixing of flange of suitable size as required, bends, welding and cutting etc as required for fixing of pipe .(ii) Quoted rate is inclusive of supply and fixing of flange of suitable size, bends as required, welding and cutting etc as required for fixing of pipe . |
| 30 | All as per Item No 12.00 above but having outside dia of 212 mm and 6 mm thick |
| 31 | Cutting anxious green growth/ vegetation growth for cleaning out the area around Pump house/ transformer yard, E/ M installations and four pole structure yards at ground level by cutting out roots, un wanted plants bushes and removal of the same by surface excavation not exceeding 30 cm deep average 15 cm complete |
| 32 | M&L for cleaning and disinfecting of clear water storage tanks/ reservoirs/ underground sumps/ semi-underground sumps/ overhead tanks (OHT) by mechanical and scientific methods, involving the following stages of process for disinfection and sterilization of internal surfaces, complete all as specified and directed:Stages of Cleaning & Sterilization:Stage 1 – Dewatering: Drain out existing water using outlet valve or high-capacity dewatering system.Stage 2 – Surface Scrubbing: Removal of algae and scaling by scrubbing walls, ceiling, and floor with suitable cleaning agents (e.g. TERBAC G5, Inchlor5, NB10 or equivalent Govt.-approved laboratory certified chemical).Stage 3 – Fresh Water Jet Cleaning: Washing with fresh water using high pressure jet pump (5 PSI).(Contd.... |
| 33 | 15.00 Contd....Stage 4 – First Bacteria Screening: Sterilization of internal surfaces with non-toxic, biodegradable, eco-friendly antibacterial agent (e.g. TERBAC G65, Inoxi60, NB69 or equivalent) certified by Govt. laboratory. Test certificate to be submitted prior to use.Stage 5 – Vacuum Cleaning: Wet and dry vacuum cleaning using industrial heavy-duty equipment.Stage 6 – UV Sterilization: Bacterial screening by UV radiation with bactericidal wavelength, applied for minimum 1 hour over all surfaces (walls, floor, ceiling, and enclosed space).Stage 7 – Final Sterilization: Application of strong oxidizing agent, safe for potable water, certified by Govt. laboratory. Test certificate to be submitted prior to use. |
| 34 | 15.00 Contd....Stage 8 –(i) Ancillary Works: Replacement of damaged ventilator wire mesh with new GI mesh.(ii) Cleaning of external tank surfaces, lids, and surroundings to remove algae, scales, vegetation, insects, or foreign matter.(iii) Fixing of durable sticker (size/ colour as directed) displaying:(a) CA No. (b) Name of Contractor (c) Date of Cleaning (d)Next Due Date.(iv) Painting of internal/ external ladders after scrapping old paint with two coats of synthetic enamel (black) over red oxide primer.(v) Painting of internal/ external pipes with standard colour coding.(vi) Marking on reservoir: capacity, date of cleaning, and next due date with 10 cm high white letters on black background, enamel paint. |
| 35 | 15.00 Contd....Notes: The executing agency (contractor/ firm) shall be technically qualified in water tank cleaning and sterilization works, and shall submit valid certifications of competence/ authorization from recognized institutions/ authorities before commencement of work. (i) Contractor shall deploy minimum 30% trained sterilization staff (with minimum 3 months certification in water tank sterilization). (ii) Govt. laboratory certificates shall be submitted for all sterilization chemicals used. (iii) Final certificate confirming completion of tank cleaning and sterilization shall be issued by a professionalized third-party agency duly approved/ recognized by NABL-accredited laboratories, CPHEEO/ PHED-approved firms, or Govt. empanelled agencies, and the same shall be submitted to the Engineer-in-Charge before acceptance of work.(iv) Physico-chemical water analysis (raw & clear water) as per HMWS&SB norms shall be carried out at contractor’s cost. |
| 36 | 15.00 Contd....(v) Contractor shall ensure alternate water supply arrangements or phased cleaning (alternate day schedule) to avoid disruption. (vi) Contractor shall provide all labour, engineer, supervisors, scaffolding/ staging, safety equipment, plant & tools at no extra cost. (vi) All staff engaged must have valid accidental insurance coverage, copy to be submitted before commencement. (vii) Each OHT/ UG sump shall be completed within one day to avoid prolonged disruption.(viii) If work is found technically acceptable but inferior to specification, payment shall be devalued as per Condition 46 of IAFW-2249 (amended). |
| 37 | All as per item no 15.00 above but the Capacity of the Underground Sump is 5 LG |
| 38 | All as per item no 15.00 above but the Capacity of the Underground Sump is 1.0 LG |
| 39 | All as per item no 15.00 above but the Capacity of the Underground Sump is 0.5 LG |
| 40 | All as per item no 15.00 above but the Capacity of the Underground Sump is 0.25 LG |
| 41 | All as per item no 15.00 above but the Capacity of the Underground Sump is 0.20 LG |
| 42 | All as per item no 15.00 above but the Capacity of the Underground Sump is 0.10 LG |
| 43 | All as per item no 15.00 above but the Capacity of the OHT is 2.5 LG |
| 44 | All as per item no 15.00 above but the Capacity of the OHT is 1.5 LG |
| 45 | All as per item no 15.00 above but the Capacity of the OHT is 1.0 LG |
| 46 | All as per item no 15.00 above but the Capacity of the OHT is 0.5 LG |
| 47 | All as per item no 15.00 above but the Capacity of the OHT is 0.25 LG |
| 48 | All as per item no 15.00 above but the Capacity of the OHT is 0.20 LG |
| 49 | M&L for forming V-groove of approximately 10mm width and 30mm depth (or up to the actual depth of the joint/ crack as observed at site) along the joint/ crack line on RCC surfaces, using a suitable grinder/ cutting machine with diamond concrete saw blade, and thoroughly cleaning the groove with compressed air blower, all as directed by the Engineer-in-Charge.The groove shall be cut precisely over the joint/ crack line in RCC structural members and shall be prepared for subsequent sealing with epoxy resin, polymer-modified mortar, non-shrink grout, or other approved repair compound in accordance with the best engineering practices and manufacturer’s specifications, complete all as specified and directed. |
| 50 | M&L for drilling holes of 12mm diameter up to 100mm depth in RCC structural members, spaced at intervals of approximately 300mm in a staggered pattern or along the identified joint/ crack line, including thorough cleaning of holes with compressed air blower. Thereafter, fixing 12mm dia injection nozzles (compatible with grouting gun injectors and provided with machined external ends to receive the grouting outlet) into the holes, using thixotropic epoxy adhesive (SikaDur 31 or equivalent approved make) to ensure proper sealing. Allow the adhesive to cure for a minimum of 8 hours prior to commencement of grouting. After curing, any nozzle projections, excess adhesive/ putty shall be carefully ground off, levelled, and the external surface finished smooth to match adjoining concrete, all as specified and directed. |
| 51 | M&L for sealing of prepared ‘V’-grooves (10mm wide and 30mm deep, or as existing at site) using Sikagard 694 F(I) / Quick Fix / or equivalent approved make, solvent-free, moisture-tolerant, thixotropic, two-part structural adhesive and repair mortar, also serving as surface levelling mortar.The compound shall be applied in accordance with manufacturer’s specifications to ensure effective sealing of cracks/ joints and durable surface finish, complete all as specified and directed. |
| 52 | M&L for Injection Grouting of Construction Joints / Cracks: Injection grouting into construction joints / cracks using non-shrink cementitious grout admixed with epoxy-based grouting compound (Cebex 100 of Fosroc / SikaGrout-214 IN or equivalent approved make) at 300mm c/ c spacing, complete as specified below:Groove Preparation:Opening of cracks/ joints into V-grooves of approx. 10mm × 10mm (or as directed) using suitable tools.Drilling & Nozzle Fixing:Drilling holes of approx. 12mm dia × 100mm deep at spacing of 300mm c/ c along the crack/ joint line, cleaning with compressed air, and fixing injection nozzles with fast-setting plugging compound (Renderoc Plug or equivalent).Grouting Operation:Injection of prepared non-shrink cementitious epoxy grout mix into the nozzles using a pressure grouting pump until visible refusal of grout material from adjacent nozzles or cracks.Nozzle Sealing:After completion of grouting, seal nozzles and residual cracks with Sikagard 694 F(I) or equivalent thixotropic epoxy putty, and cut the protruding portion of nozzles flush with the surface.Finishing:Grinding, levelling, and surface finishing of the treated area to match existing concrete, all complete as directed by Engineer-in-Charge. |
| 53 | Notes for Item 16 to 19: (i) Leakage or seepage observed through adjacent nozzles or cracks during grouting shall be immediately sealed by the contractor at no extra cost.(ii) All works shall be executed strictly as per manufacturer’s specifications and only by authorized applicators of the approved manufacturer.(iii) Necessary scaffolding, staging, tools, and safety arrangements shall be provided by the contractor at no extra cost. |
| 54 | Providing and Applying Polymer Modified Cementitious Coating in repairs : Providing and applying two coats of SikaTop Seal 107 / AquaArm Top Guard / CICO Top Crete RTU or equivalent approved make, a two-component, ready-to-use, polymer-modified cementitious waterproof coating, on the internal surfaces of walls and floor of the water tank. The first coat shall be applied in a horizontal direction and the second coat in a vertical direction to ensure uniform coverage. The total dry film thickness of the coating shall not be less than 1.5 mm. Surface preparation, mixing, and application shall strictly follow the manufacturer’s specifications, including necessary curing complete all as specified and directed by the Engineer-in-Charge. |
| 55 | Applying Epoxy Coating for Potable Water Tanks : Applying two coats of Sikagard 67 / AquaArm Tank Coat or equivalent approved make, a water-based epoxy coating certified for potable water use, over the entire internal concrete surface of the tank (walls, floor, and ceiling). First coat shall be applied by brush and allowed to dry for 6–8 hours.Second coat shall then be applied and allowed to cure for a minimum of 24 hours before commissioning.The total dry film thickness (DFT) after two coats shall not be less than 500 microns.Application shall be strictly as per manufacturer’s specifications and under the JEs supervision/ direction of the Engineer-in-Charge. |
| 56 | Notes for Item No 16 to 21:(i) Work shall be executed only by an authorized applicator of the approved manufacturer, ensuring adherence to recommended methodology and quality standards.(ii) After curing, the coating shall be tested by water ponding / retention test for a minimum of 72 hours to verify water tightness. The tank shall be accepted only after successful completion of this test to the satisfaction of the Engineer-in-Charge. |
