Rural Development And Panchayati Raj Department Tender

Boring/drilling of 125mm dia bore well of required dia for casing/strainer pipe by suitable method prescribed in IS: 2800(part I), including collecting samples from different -trata, preparing & submitting strata chart/bore log including higher & running charges of all equipment tools, plants & machineries required for the job, all complete as per direction of Engineer-incharge upto desired depth as per annexure enclosed below ground level (all types of soil). The job includes,Supplying. assembling, lowering & fixing in vertical position in bore well, Cost on account of 125 mm dia M.S Blind and Slotted pipe. C/O riser pipe 40 mm dia. ERW (electric resistance welded) FE 410 Mild steel plain ended casing pipes of 125mm dia, confirming to IS:4270 Of reputed & approved make including painted with outside surface with two coats of anticorrosive paint of approved brand & manufacture including required hire & Labour charges, fitting & accessories, all complete for all depths, as predilection of Engineer incharge. Development of tube well with back wash method with air compressor of minimum capacity 1000 CFM (300 PSI air delivery system) with suitable arrangements till well is thoroughly developed in all respects as per the direction of in-charge Engineer.

Supply, Installation testing and commissioning of India Mark Il hand pumps assembly comprising of cylinder, Head, Handle assembly, front cover, Handle-Axle, washers bolt, risers & the connecting rods. The minimum submergence of the cylinder shall not be less than 30 ft and the number of connecting rods and the risers shall de end on the drilling depth of the well and the SWL of the well.

Providing and laying of circular cement concrete block of 1.5m dia and 0.3m (l ft.) deep in a mix of 1:3:6 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 it robust to resist shock load observed while pumping. In case the suitable space for the above specification is not available, the surface area is to be adjusted according. The block comprises of a mud mat of 4 inch height and then laying of 8 inch cement concrete with suitable drainage