NIT 13 Operation and Maintenance of distribution systems for Rural Water Supply Schemes originating from various pump houses under jurisdiction of JEN Rural-I sub division kekri

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.

Minimum labour for a following kms pipelines to be deployed.

1 km to 50 km - one fitter-II & one beldar

51 km to 100 km - one fitter-II & Two beldar

101 km to 200 km - Two fitter-II & Four beldar QTY 187.764 km, Total for 12 month=187.764*12=2253.16 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)

80-300mm Total 326 nos, for 12 months=12*326/2=1956 nos

Providing and laying in position cement concrete in specified grade over prepared base course complete including finishing, curing, all material, labour, machinery, lighting, guarding for road restoration work in trenches of pipe line and chamber work. Measurement for CC work to be made as per standard trench width specified in tender document and no extra payment shall be made be made for trench width more than specified, complete work as per technical specification and scope of work. (Road repairing work during leakage removing process)

M20 grade Nominal Mix 1: 1.5: 3 (1 cement : 1.5 coarse sand : 3 graded stone aggregate 20mm nominal size).

Cleaning of Ground water reservoir ( GLR's) of below mentioned capacity including removal of all silt from reservoir, scrapping of wall, disinfection of reservoir after cleaning and disposal of silt up to 1.00 Km lead and painting the date of cleaning on the reservoir. (Once in every Six Months)