WORK OF GETTING NEW BORING DONE AND INSTALLING FENCING IN VARIOUS PARKS OF VIDYADHAR NAGAR ZONE, VAISHALI NAGAR ZONE AND CIVIL LINE ZONE

Construction of tube-well from ground levels and upto 100 Meter depth and above to accommodate housing and assembly pipe of following sizes in all types of alluvium strata by percussion/ rotary drilling method and with gravel as per IS:4097-1967 and packing as per IS:2800 (Part I -& II) 1979 as amended upto date(the work includes the cost of gravel & its primary packing and packing during development, lowering of housing & strainer assembly pipes, with supply and wrapping of coir-rope, wherever necessary for arresting fine sand particles. The work will not include cost of housing pipe and strainer pipe assembly and development work, but work would be completed after obtaining sand free water).

Upto 100 Meter depth 200 mm dia Nominal bore (Code:- 20.2.1.2)

Supply of ERW M.S. black casing pipe ISI marked (IS: 4270/1992) of grade Fe410 of following nominal bore sizes at site of work. 200mm dia (Code:- 20.4.4)

Supply of strainer pipes made of ERW M.S. black pipe ISI mark of following sizes at the site of work including required size of slotting as per IS:8110-1985 of following nominal bore sizes atsite of work. 200 mm dia (Code:- 20.5.2)

Construction of Tube-well upto 100 Meter depth and above in all type of rocks by DTH system and over burden to accommodate casing pipe of following sizes in all types of soils and over burden including lowering of casing pipes but excluding cost of casing pipes as per IS : 2800 (Part I & II) 1979 specifications. The work would be completed after obtaining sand free water. The tube well should have a throughout bore as per nominal dia of casing pipe 200 mm. (Code:- 20.1.4)

Development of tube well as per IS specification using suitable compressor to give sand free water for required yield of the gravel packed tube well. (Code:- 20.3)

Supply and fixing of tube well cover of M.S. sheet (6mm thick) with nuts and bolts complete for casing size:200 mm dia. (Code:- 20.7.4)

Supply and fixing of M.S. clamp set of 50 ×6mm flat iron with nuts and bolts etc. for holding the riser pipe assembly ofsubmersible pump set. (Code:- 20.8)

Providing & lowering of G.I. flange pipe B Class including rubber washer and nuts of 8 mm dia complete in all respect 50mm dia. (Code:- 20.10.1)

P/Laying ISI marked P.V.C. insulated submersible cable confirming to(IS:694) and as per IS 8130 : 2013 of 1.1 kV grade . Wire should be made from 99.90 % purity copper, stranding in acc. to IS:8130/IEC 60228 for lower watt loss , oxygen free for less chances of oxidization, insulation PVC type A/C/D , flame retardant as per IS 10810-53, better amperage rating as per IS:3961 part 5, existing pipe / open trench / Cable tray / on surface including making connection etc. as required. For additional technical parameters of product / work refer Annexure 'A' attached with this BSR 4.0 Sq.mm 3 core flat / Round (Code:- 53.7.3)