Details: drilling of 500mm dia bore with reverse rotary rig in all kinds of soil including the cost of consumable stores, fuel oil and transportation of rig to the site. complete in all respects. drilling of 500mm dia bore with reverse rotary rig upto 150 mtr depth bgl. drilling of 500mm dia bore with reverse rotary rig beyond 150 mtr depth upto 300 mtr depth 1. and dismantling of boring plant including all arrangement for the transportation of the boring equipment to site of work from the store of contractor at site and back are to be made by the 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 tube-well be arranged by the firm/ contractor at site at his own cost. 2. in case the bore is converted into a tube-well payment of bore shall be made up to the bail plug plus margin (7% of main bore drilling or as actual as per field requirement whichever is less) required for sustaining the main bo
Sector: Water supply and Sewerage