RWS JJM RIDF NRDWP 15th FC FDR Fund during the year 2025 26 SH Maintenance of different water supply scheme at different area within the jurisdiction of DWS Sub Division Damcherra Gr-II 2nd call

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 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, fixing and laying rigid UPVC pipes conforming to IS : 4985 jointing with couplers, of same class conforming to IS : 10124 ( Pt-II ) with solvent cement conforming to IS : 14182 including testing of joints complete ( but excluding the cost of specials like bend, tees etc. which will be paid separately ) as per CPWD specification and direction of the Engineer - in - charge.

A). Class - 3 ( working pressure 6.0 kg / cm2)

i) 90 mm OD

ii) 140 mm OD

iii) 110 mm OD

Providing and fixing C.I. sluice valves ( with cap ) complete with bolts, nuts, rubber insertions etc. ( the tail pieces if required will be paid separately ) as per chapter 20 of CPWD specification and direction of the Engineer - in - charge.