Providing Water Supply Scheme Gurugarh Block Machhiwara Distt Ludhiana under Nabard 31

Boring with casing pipe for tubewell in all soils except ordinary hard rocks requiring blasting including removing the casing pipe after the tube well is lowered & tested , equipment as requried such as hand boring machine and its accessory, transportation to site and vice versa etc. complete in all respect. NOTE 1. Erection and dismantling of boaring plant including all arrangment for the transportation of the boaring equipment to site of work from the store of contractor at site and back are to be made by contractor at his own cost. All rates should be quoted for supplying the material at site of work. Pits for collection of water and water for drilling tubewell be arranged by the firm/ contractor at site at his own cost and levelled after the completion of work. NOTE 2. In payment of bore shall be made upto the bail plug plus margin (7% of main bore drilling or as actual as per field requirement whihever is less) requred for sustaining the main bore.

b) Boring with 200mm id Housing Pipe

1) Upto 150 m depth BGL.

Supplying, lowering of MS Pipe as per IS:4270-2001 including MS sockets having dimensions as per IS code duly welded with MS electrode to have extra strength to lower the pipe into tubewell bore.

150mm nominal diameter (weight 21.6 kg per metre) 5.4 mm thickness

Supplying, Fixing & lowering of Stainless Steel Cage type wire wound screen as per IS:8110-2000 or latest ISI marked Duly welded with suitable grade S.S welding electrode.to lower the strainer into tubewell bore.

150mm Steel Strainer (slot size 0.15/0.20mm) 5.0 mm thickness

Supplying, Fixing & lowering of Stainless Steel Socket as per IS:8110-2000 or latest ISI marked Duly welded with suitable grade S.S welding electrode.to lower the strainer into tubewell bore complete in all respect.

150mm internal diameter

Supplying, lowering & fixing of M.S Special socket to connect S.S Strainer to M.S Pipe duly welded with suitable grade welding electrode complete in all respect.