Construction of 329 No.of 125 mm dia Machine Drilled Hand Pump Wells in 47 Constituencies of Kashmir Province

Drilling/Boring of 125 mm diameter Tubewell by Air Rotary Drilling Rig Unit suitable for lowering of MS casing of 125mm diameter in suitably drilled bore hole as per specifications laid down in IS 2800 (Part-l) with upto date amendments . The job is to be done in all kinds of soils, boulder, rocks, collapsible strata, saturated soils, artisan conditions by ODEX/DTH attachments and exploration of ground water by tapping sufficient aquifer zones. The job includes the cost shifting of drilling accessories, tools, bits, casing shoe, consumables like fuel, lubricants, skilled and unskilled labours and other unforeseen items. Development of Tube well with backwash method with air compressor of minimum capacity of 1000 CFM (300PSI air devlivery system) with suitable arrangements till well is thoroughly developed in all respects.

Lowering of casing assembly and its welding after every 10 feet upto the drilled / desired depth. The casing is to be slotted as per the site requirement and as directed by the site engineer. the job includes proving and welding of suitable size of casing shoe at the botton of the first pipe. The job also includes carriage of casing pipes from stores to site and loading / unloading thereof.

Supply, installtion, testing and commisioning of INDIA Mark II hand pump assembly comprising of cylindedr, head, handle assembly, front cover, handle, axle, washers, nuts/ bolts submergence of the cylinder should be more than 20 feet.

Providing/fitting of risers 32mm dia GI including sockets on side of the 10 ft (each length).

Providing/fitting of connecting rods (10 ft length each ) for INDIA mark II hand pump.

Providing/Laying of Plain Cement Concrete block of size 4ftx4ftxlft in 1:3:6 mix to give 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. The job includes Providing/laying of PCC edges of 4"X4" in 1:3:6 mix and P/L of cement plaster in 1:4 mix to the above block to give aesthetically good appearance . Cost on account of stuttering, strutting, centring, curing etc. is included in the scope of work. In case the suitable space for the above specification is not available, the surface area is to be adjusted accordingly.