extension of pipe line at ward no 8 mookkonam kuttai privu road transform to 1st ward sakkarai house end in keeripatty town panchayat , supply and delivery of following 90mm dia hdpe pipe as per standard specification as directed by departmental officers , 90 mm hdpe pipe pn 6 , earth work excavation and depositing on bank with initial lead of 10 m and lift of 2 m in narrow trenches having bed width 1.25m & below for laying of pipes for water supply and sewerage works in the following type of soils as directed by departmental officers ( measurement as per surveying data with reference to drawings ) , 90 mm hdpe pipe pn 6 , laying and joining of supplied hdpe pipes , 90 mm hdpe pipe pn 6 , refilling the excavated earth for pipe line trench as directed by departmental officers , 90 mm hdpe pipe pn 6 , supply and delivery of following pipeline materials from approved company including all cost and conveyance etc., complete , 80mm gi pipe , 80mm gi bend , 80 mm dia gi lbow , 80 mm dia gi tee , 80 mm dia gi h nipple , 80 mm gm gatevalve