Construction of bore well at Khaitangan in District Baramulla.

Amount

Drilling /Boring of the hand pump well with air rotary drilling rig unit suitable for lowering MS casing of 125mm dia. in suitably drilled bore hole as specifications laid down in IS 2800(PART I) 1991 with up to date amendments. The job is to be done in all kinds of soils ,boulders, rock collapsible strata, saturated soils artisan conditions by ODEX/DTH attachments complete in all respects whole in consolidated/semi consolidated/boulder formation till exploration of ground water by taping sufficient aquifer zone up to desired depth. The job includes the cost of all consumables, like fuel, lubricants and other accessories. The job includes the cost of lowering of casing assembly and its subsequent welding after every length to lower up to the drilled /desired depth. The casing is to be slotted as per the site requirement. The job includes following activities and the items. 1. Collection of soil samples in a sample box having a top lid/locking system to demo the samples as and when required as and when required during execution. 2. Power supply arrangement required during drilling etc 3. P/F of well cap as per IS code 2800 with latest /up to date amendments till the well is harnessed. 4. Recording the strata details in the drilling job card as given in the tender's documents. 5. P/F, asscmbling, lowering and fixing in vertical position in bore well ERW (Elcctric Resistance Welded) Fe 410 plain ended 125mm dia: M.S (Mild Steel) Pipe confirming to IS:4270:2001 with up to date amendments of reputed make with anti-corrosive paint of approved brand painted outside surface. 6. Development of tube well with back wash method with air compressor of minimum capacity 1000CFM (300 PSI air delivery system) with suitable arrangements till well is thoroughly developed in all respects.

Providing, Installation testing and commission of India mark Il Hand pump assembly (confirming to IS:15500: Part 2:2004with upto date amendments) comprising of cylinder, head, handle assembly, front cover, Handle Axle, washers' bolts, risers and the 32mm dia: connecting rods & risers rods upto complete set with upto 80 ft / 100ft depth. All The tools and tackles required at the site are to be arranged by the firm.

Providing and laying of circular cement concrete block of 1.5m dia: x 0.3m deep or 1mx 1m x 0.3m in a mix of 1:3:6 (M15) to give the adequate strength to act as a sanitary block for the well and to grout the hand pump assembly in order to make a foolproof sanitary seal for good hygiene of the well water. In case the suitable space for the above specification is not available the surface area is to adjusted according the block comprises of a mud mat of 4-inch height and then laying of 8-inch cement concrete with suitable drainage the block should have aesthetically good appearance

M/S AH TUBE WELLS (BID ID -2293007)