BIFURCATION OF WATER SUPPLY SCHEME IN VILLAGE CC KAHLWAN BLOCK QADIAN DISTT GURDASPUR Under head Nabard XXXI

Drilling of 500mm dia bore with Reverse Rotary Rig in all kind of soil including the cost the consumable stores, fuel oil and transporation of rig to the site, complete in all respects 1. Erection 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 tubewell to be arranged by the firm/contractor at site at his own cost. 2. In case the bore is converted into a tubewell 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 bore paid at the rate of beyond margin shall be paid at the rate of test bore drilling. Drilling of 500mm dia Bore with Reverse Rotary Rig upto 150m depth BGL.

Drilling Trial Bore using Telescopic Method with suitable rig to extract water samples of different strata's encountered during drilling to check water quality with respect to Physical & Chemical Analysis, Heavy Metals such as Iron, Nitrate, Arsenic, Fluoride, Selenium, Uranium etc. The payment for testing water sample will be paid extra as per the quoted rates against relevant items of this bid. However the rates includes analysis of sand of all strata from where the water sample have been collected. (It should be ensure that the water sample is collected by an officer of rank not less than SDE)

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 metre, 6.40 mm thickness.

Supplying, fixing & lowering of Stainless Steel Cage type wire wound screen 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. 200mm steel strainer (slot size 0.75mm) 6.30 mm thickness

Supplying, fixing and lowering of stainless steel socket as per IS 8110-2000 or latest, ISI marked duly welded with suitable grade ss welding electrode to lower the strainer into tubewell bore complete in all respect.200 mm Internal diameter

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. 200mm internal diameter

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

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

Supplying & Fixing of bail plug of M.S pipe complete with inverted U-hook attched to the bottom plug complete in all respect. 200mm internal diameter (weight 33.6 kg per metre) 6.4mm thickness

Supplying & Fixing of well cap having thread to fix on housing pipe complete in all respect. 200mm internal diameter