NIT 10/2025-26

Maintenance of pipelines irrespective of size and material which includes repairing of bursts and leakages, pollution control, survey and removal of choking, disconnection of illegal connections, collection and recording minimum 10 nos. residual chlorine samples during daily supply timings, interconnections and all works related to pipeline network in existing distribution/ rising main pipelines of all sizes by digging out suitable size of pit in soft and loose soil/ hard soil including cutting of black top, WBM and CC top of road of any size at work site. This will also include cutting of pipe ends, fixing of pipe piece with jjointing material to make repair leak proof and refilling of pit by excavated sand by ramming it at sides of pipes and upto ground level. For entire job, contractor will use their own T&P. Contractor with his own resources shall arrange de-watering, JCB and tractor compressor if any and restore any amenity at his own cost damaged while performing the work in this item. The work includes daily patrolling and repair the leakages within stipulated time and complete maintenance of pipeline network of rising and distribution pipeline network within the scope of work for per km pipeline per month. Jointing material shall be provided by the department. Minimum labour for a following kms pipelines to be deployed: (132.68 KM)Providing, lowering, laying in trenches, aligning, fixing in position and jointing Ductile Iron (DI) ISI marked K-7 grade S&S pipes as per IS:8329-2000 (amended up to date), with internal cement mortar lining suitable for potable water with rubber ring (EPDM) joints as per IS: 5382-1985 including all taxes (Central and local), transportation and freight charges, inspection charges, loading/ unloading charges, including cost of labour and material, specials (Tee, bend etc.) satisfactory hydraulic testing, disinfection, commissioning etc. complete as per technical specifications and direction of Engineer-in-charge. (excluding earth work) Note : Providing and fixing of all requisite specials as per drawing, design and layout are inclusive in RM measurement of the item and shall not be paid separately.

101 km to 200 km - two fitter-II & four beldar (Qty=12 months x 132.68 KMs=1592.16 KM)

Daily/ periodical operation of valves at supply times for specified by department per sluice valve per month. (Valve rod and cap to be arranged by contractor)

80 - 300 mm (78 Valves Per Day Per Month)

Cleaning of GLR below mentioned capacity including removel of all silt from reservoirs scrapping of wall disinfection of reservoires after cleaning and desposal of silt up to 1.00 KM lead and painting date cleaning on the reservoirs.

51 to 100 KL (2 Nos)

101 to 200 KL (5 Nos)

201 to 300 KL (1 Nos)

Replacement of existing wire mesh on ventilators of GLRs , OHSRs and GLSRs Etc with 16mm Dia MS vertical bars placed at 10cms wherever required having 16 gauge wire mesh with a inner base of expended jali welded around with vertical bars

Cleaning of over Head Service reservoirs (OHSR's) below mentioned capacity including removel of all silt from reservoirs scrappings of wall disinfection of reservoires after cleaning and desposal of sillt up to 1.00 KM lead and painting date cleaning on the reservoirs.(Cleaning on Every 6 Months Intervel)

50 To 100 KL (2 Nos)

101 To 200 KL (2 Nos)

201 To 300 KL (1 Nos)

301 To 400 KL (1 Nos)

401 To 500 KL (1 Nos)

Maintenance of Openwell which includes round the clock monitoring of Openwell, completed repair/ rewinding of subersible pump sets indluding cost of material component requird to repair, pumpsets,starter, meters etc. of electric panel of Openwell, lowering and unlowering of pumpsets complete in all respect, maintanance of log-books and history sheet as directed by engineer in charge for Openwell per month.

8 to 10 HP (1 Nos)

11 to 12.50 HP (2 Nos)

13 to 15 HP (1 Nos)

16 to 25 HP (1 Nos)

Maintenance of Tubewell which includes round the clock monitoring of tubewells of all sizes, completed repair/ rewinding of subersible pump sets indluding cost of material component requird to repair, pumpsets,starter, meters etc. of electric panel of tubewellsa, lowering and unlowering of pumpsets complete in all respect, maintanance of log-books and history sheet as directed by engineer in charge for tubewell per month. for Rural water supply schemes.

11 to 12.50 HP (2 Nos)

Proviting and fixing of powter factor control capacitor panel with MTC. On monthly rental basis. The resposbility of controctor is to maintain minimum power factor 0.96. If the contractor failed to maintain minimum PF, and any surcharge on this levied by AVVNL, the same be deducted from payment of contractor.