Day to Day Operation and Maintenance of Water Supply Distribution System majority based on DI Pipe within Zone III under Balurghat Municipality for the Period of 24 months

Opening & closing of all the different dia Sluice Valves (80 mm dia to 350 mm dia. on different places along the alignment of the rising main and distribution main at different places over the command area daily as and when required for regulating the supply of water and distributing' water all over the command area smoothly including changing and restoration of gland packing of sluice valve, air valve if required including opening the cap/ plug of wash out point or opening the sluice valves including de-jointing flange joints (80 mm to 350 mm dial including repairing works and cleaning the pipeline or changing of gate, spindle or liner etc. of sluice valves all complete, restoration works to be done including earth work in the excavation bailing out of water, re-filling the excavated earth, taking out of RCC slab or slab cover and refaxing true to position etc. all complete as per the specification and direction of EIC.(2 NOS PER DAY FOR EACH ZONE) [Basic Rate 487.00 (excluding EPF, ESIC & Bonus)

Labour charges for repairing the bursting/damage/leakage of 80 mm. dia, to 200 mm. dia. A.C. Pipeline with detachable joints including earth work in excavation tracing out the actual position of burst/leak, cutting pipe of required length, refitting the same with new pipes and old/new detachable joints after chiseling and shaping the pipe, bailing out water from the trenches and refilling the trenches to its original condition all complete as per direction of E.I.C. (Extra A.C. Pipes and detachable joints with rubber ring, nuts and bolls etc. will be supplied from the scheme store, Surplus and unserviceable pipes and specials will have to be returned to the same store. The rates are inclusive of carriage to site of work and back carriage of materials to and from scheme store as mentioned above.) a) 80 mm dia to 100 mm dia

b) 125 mm dia to 200 mm dia

Extra repairing charges over item no 2 for changing of gland packing of sluice valve/air valve with supplying of gland packing grease etc. bailing out of water including removing the top cover slab of vaIve chamber and refixing the same after completion of work as per direction of EIC. a) 80 mm dia. to 125 mm dia.

b) 150 mm dia. to 250 mm dia.

Repairing of flange joint after dismantling the joints, removing the unserviceable rubber insertion and supply new rubber insertion and supply upto 50 % of new nuts and bolts all complete including necessary earth work dewatering & supply of washer etc. all complete as per direction of EIC a) 80 mm dia to 100 mm dia

b) 125 mm dia to 200 mm dia

Renewing lead joint to CI pipes and specials and spun yam 'including reusing 60% of old and using 40% new lead of approved quality new span yam and caulking the same properly including labour charges for dismantling the existing damaged portion complete as per direction of EIC. Approved quality lead, spun yarn, fuel and other materials will be supplied by the agency including necessary earth work in exacavation & back filling in same trenches (Lead if supplied by the department will be recovered @ 145/- per kg) NB:-This item will be executed as per specific direction of EIC a) 80mm.dia. to 150mm.dia

Labour charges for repairing of UPVC pipe by using UPVC socket and solvent cement including earth work in excavation with dewatering and necessary tracing out the actual position of brusting / leakage, cutting the pipe to required length in the trenches and replacing the same with new pipe (as per required length) including fitting fixing after roughing the UPVC surface & supplying and applying solvent cement, back filling the trenches with excavated earth upto the same as per direction of EIC all complete (UPVC pipes and specials, solvent cement to be supplied by the Agency). Unserviceable broken withdrawn surplus materials are to be deposited to the Deptt. store. iii) 90 mm dia

iv) 110 mm dia