Shifting of PVC pipeline distribution system of LI Khedabari 1 scheme situated near Rangamati HS 2 School at Nalchar RD Block during the year 2025 26 under WR Sub Division Melaghar

Dismentalling of existing PVC pipe from underground including necessary earth cutting etc.and dismentalled pipes,couplers, tees,etc properly stacking insafe site as per CPWD Specification & direction of Engineer-in-charge. a) Pipes,cables etc exceeding 75 mm dia but not exceeding 315 mm dia.

Excavating trenches of required width for pipes, cables etc. including exacavation for sockets, dressing of sides where required, ramming of bottoms, depth upto 1500 mm (slope-1 in 200) including getting out the excavated soil and backfilling of soil as required after laying of pipeline, in layers not exceeding 200 mm in depth including consolidating each deposited layer by ramming, watering etc. and disposing of surplus excavated soil with all required leads as per Chapter - 2 of CPWD specification and direction of the Engineer - in - charge. A. For UPVC pipes in new work a. In all kinds of soil i) For pipes not exceeding 90 mm dia

ii) For pipes exceeding 90 mm dia but not exceeding 300 mm dia

Providing and laying different dia rigid UPVC pipes of Working Pressure 4.0 kg/ sq.cm. complete with necessary coupler and solvent cement as per CPWD Specification & direction of Engineer-in-charge. a) 90 mm dia

b)110 mm dia

c) 140 mm dia

d) 160 mm dia

e) 200 mm dia

f) 250 mm dia

g) 315 mm dia