No.1920-21 dt.30.04.2021 (Rangian)

Amount

Tubewell

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 site complete in all respect.

Drilling of 500 mm dia bore with Reverse Rotary Rig up to 150mtr. Depth BGL

Note : 1. Erection and dismantling of boaring plant including all arrangement 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. Plts for collection of water and water for drilling tubewell be arranged by the firm/ contractor at site at his own cost and leveled after the completion of work.

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 whichever is less) required for sustaining the main bore.

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.

200mm nominal diameter (weight 33.6 kg per meter) 6.4mm thickness

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

200mm Steel Strainer (slot size 0.75mm) 6.30mm 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.

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.

Making electric logging of borehole with electronic well logger including cost of equipment at site etc. complete in all respects.

Supplying and fixing mild steel centering guides made out of 32mm X 6mm thick M.S bar complete in all respect

Supplying at site Wooden box of suitable size with Lid & locking arrangement for preserving strata sample collected from the bore.

Supplying at quarry site of gravel of 1/16" to 1/8" sizes including pouring and packing in the annular space between the pipes assembly and the bore. The gravel should be free from, dust, dirt, or the vegetable manner as per IS 4097/2003 with latest amendments. (to be paid as per actual length of pipe)

Earth, Surkhi, Sand, Earth, Fly Ash, Bajri, Ballast, Stone boulders, Kankar and building rubbish, Earth.

Supplying of tibba sand/ local sand over packing & clay seal upto G.L. below pipe assembly & bore including carriage complete in all respect.

Supplying and fixing sanitary seal having rubber tight on housing pipe complete in all respect.

Supplying of clay to provide impervious layer in below pipe assembly & bore above gravel packing all including carriage

Collection of water sample from different strata and testing of sample from approved laboratory (Physical & chemical Analysis)

Supplying and fixing well cap having thread to fix on housing pipe complete in all respect.

200mm internal diameter

Supplying & fixing of bail plug of M.S. pipe complete with inverted U-hook attached to the bottom plug complete in all respect.

(c) 200mm internal diameter (weight 41.6 kg per meter) 8.00 mm thickness

Supplying & fixing of M.S. Clamp of size 150mm x 12mm made out of MS Flat 1.52 m long, suitable to fit Housing pipe including the cost of Nut & Bolts of suitable size complete in all respects.

Development and stabilizing of the tubewell with air compressor of required capacity as directed by the engineer-in-charge including cost of tools, appliances & consumable to the satisfaction of Engineer-in-charge.

Capacity of Air compressor 300 cfm at 250 PSI

Development and stabilizing of the tubewell with submersible pump of required capacity as directed by the engineer-in-charge including cost of tools, appliances & consumable to the satisfaction of Engineer-in-charge.

Testing of water sample for Heavy metal from approved laboratory (Toxic material such as Arsenic, lead, mercury, pesticide, Uranium etc.)

Sterilization of Tubewell

PUMPING MAIN

Supplying, laying, jointing cutting & testing of PVC pipes & specials 10kg per cm2 including cost of excavation complete in all respects as per analysis A-21-A

160mm o/d PVC pipe

Providing & fixing C.I/D.I Flanged end, stem of SS (AIS 1410) and Bronze (gunmetal) working parts Sluice Valves ISI marked 14846-2000, including jointing, testing & cost of Nut, Bolt & insertion sheet, all carriage complete (with the approval of Engineer - in – charge)

Construction of Masonary Sluice Valve Haudies 0.9 X 0.9

Pumping Machinery

Providing & Installing Testing & Commissioning of One No. Electrically driven Submersible Pumping set of reputed Make capable of delivering 347 LPM against a head of 64 mtr (10.00BHP) complete in all respects.

Detail of Pumping Machinery

(i) 10.00 BHP (Motor with Pump)

(ii) Panel Board

(iii) Cable (Size/Cost) 4.00 mm2=150 mtr.

(iv) Column Pipe (G.I)( Size/Length) (80mm i/d =43mtr.)

C.I FITTING INSIDE PUMP CHAMBER

Providing and installing 100mm dia delivery main (From Tube well to Duck Foot bend including cost of C.I/D.F Pipes, D/F Sluice valves, D/F NRV & Specials as C.I Bends & Tail Piece Tees etc. inside the pump chamber as per standard design complete in all respects as Annexure A12 – 2 & Drawings D-12 & D-17.

GURSHARAN SINGH CONTRACTOR