R/Mtc of RWS Schemes/SH Maintenance and repairing of pipeline leakage, washing of pipeline maintenance of hydrant and sluice valves of existing Water Supply Schemes at different locations of Chalita Bankul Sector under Rupaichari Block during 2026-27

i) 90 mm OD

ii) 110 mm OD

iii) 140 mm OD

Clearing of diposited iron inside of laid PVC pipe line (90 mm/110 mm / 140 mm) excavation trenches for 100.00 mtr laid pipe line of required width and depth at an interval of 2.00 mtr to 3.00 mtr long for every 100.00 mtr. Clearing through UPVC coil pipe and laying same with coupler and cement solvent joint (PVC coupler and solvent cement to be issued at free of cost from the department).

Clearing of diposited iron inside of laid CI/DI pipe line of different dia. (150 mm/100 mm / 125 mm) and dismantling including trenching, refilling for every 100.00 mtr laid pipe line of required widht and depth, cutting for every 100.00 mtr pipe iron throug PVC coil pipe after clearing washing and laying the same with rubber gusket pipe layed joint as per direction of the Engineer-in-charge. (Pig lead will be issued by the department at free of cost but rubber gusket and other T&P will be arranged by the agency)

i) 90 mm dia.

ii) 110 mm dia.

iii) 140 mm dia.