tender for operation & maintenance of r.w.s.s. maroth under subdiv. nawa - 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/ bard 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 kan pipe line per month. jointing material shall be provided by the department. 2 pipe line ac, pvc, hdpe/di 3 63mm to 150 mm 4 maintenance of tubewells which includes round the clock monitoring of tubewells of all sizes, complete, including cost of material components required to repair pumpsets, starters, meters etc. of electric panel of tube wells, lowering and unlowering of pumpsets complete in all respect, maintenance of log-books & histroy sheet as directed by engineer-in-charge for tubewell per month. (excluding repairing of pump sets) tw /ow . 5 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 ) 6 80-300mm