The work of operation and maintenance of DI and HDPE pipelines, valves etc inclusive all repairing material in Bisalpur Water Supply Project Jagatpura, Pratap Nagar and Mahal Road Area Distribution PackageI under Project Division I South Jaipur

Maintenance of pipelines irrespective of size & mateiral which includes repairing of bursts & leakages pollution control, survey & removal of choking, disconnection of illegal connections, collection & recording minimum 10 nos. residula 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 orad of any size at work site. This will also include cutting of pipe ends, fixing of pipe piece with jointing mateiral to make repair leak proof and refilling of pit by excavate4d sand by ramming it at sides of pipes and upto ground level for entire job contractor will use their own T & P. Conractor with his own resources shall arrange de-watering. JCB & Tractor compressor if any and restore any amentity at his own cost damaged while performing the work in this time. The work includes daily patrolling and repair the leakages withing sipulated time and complete maintenance of pipe line network of rising and distribution pipeline network withing the scope of work for per km. pipe line per month. Jointing material shall be provided by the department

101 km. to 200 km. - Four fitter- II & four beldar (307 km. X 06 Month = 1842 Km/year)

Daily periodical operation & maintenance of valves at supply times specfied by department.(Valve rod and cap to be arranged by contractor)

80-300 mm (30 Valve X 06 Months = 180 Valve/year)

350-800 mm (10 Valve X 06 Months = 60 Valve/year)

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.

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

Providing and fixing of flanged/ plain ended MS Specials made from MS sheet strips of relevant IS specification of approved thickness by welding, lowering, laying, aligning, fixing in position at all level/ depths in trenches complete including all taxes, material, labour, inside lining, outside coating, testing and commissioning along with pipe line as per technical specifications and direction of Engineer-in-charge.

MS pipe specials up to 600mm dia (with minimum 5mm thickness sheet)