nit no 119

Maintenance of pipelines irrespective of size & material which includes Repairing of Bursts & leakages pollution control, survey & removal of choking, disconnection of illegal connections, Collection & recording minimum 10 nos. residual chlorine samples during daily supply timings, interconnections and all works related to pipeline network in existing distribution /rising main pipe lines of all sizes by digging out suitable size of pit in soft and loose soil/ hard soil including cutting of Black top, WBM & CC top of road of any size at work site. This will also include cutting of pipe ends, fixing of pipe piece with jointing 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 & 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 pipe line network of rising and distribution pipeline network within the scope of work for per km pipe line per month. Jointing material shall be provided by the department.

Maintenance of tubewells/Open wells which includes round the clock monitoring of tubewells of all sizes, complete repairs / rewinding of submersible pump sets including cost of material components required to repair pumpsets, starters, meters etc. of electric panel of tube wells/Open wells Lowering and unlowering of pumpsets complete in all respect, maintenance of log books & Histroy sheet as directed by Engineer-in- charge for tubewell/Open wells per month.

7.50 HP to 10.0 HP

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)

Running expenditure of pumphouses which includes complete operation of pumpmotor ,maintenance of log-books as directed by Engineer-in-charge, general upkeeping of premises, security arrangements, Regular chemical dosing in CWR, cleaning and desilting of SR/CWR/SUMP once every six months, daily valve operation under the Campus of pump house and all other works as mentioned in scope of work in tender document for per pump house per month. (power supply minimum 16 hrs) (excluding repairing of pumping machinery etc.)

Upto 100 HP

Maintenance of centrifugal pump sets and motor / Monoblock including cost of rewinding of motor, material components & accessories required to repair pumpsets, starters etc. of electric panels, deinstallation and re installation of pumpsets complete in all respect for per Centrifugal pump set with pannel per month. maintenance of histroy sheet as directed by Engineer-in-charge for centrifugal pump set per month. Operated load of Centrifugal Pump sets (HP)

6.0 HP to 12.5 HP

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