Annual maintenance of water supply scheme in Sector 14P I Hisar Boring and installation of 1 no Shallow tubewell at water Works in Sector 14 Hisar and all other works contingent thereto

Amount

Drilling 300mm dia bore with mechanical boring machine generally according to ISI specification No. IS 2800-1991 (Part-I) as amended upto date but modified to the extent of the specification attached with the tender in kind of soils, boulders including the cost of all consumable stores fuel oil, soil establishing materials and mechanical boring machine and other accessories to site of proposed bore and back. (i) Drilling from 0 to 40 mtr. below ground level.

Supplying and lowering 200mm outer dia PVC pipe of 6 Kg/Cm2 as per IS 12818-1985 with upto date amendment including jointing with required no of couplers/sockets including necessary jointing material ISI marked including the cost of lowering into bore in vertical position including cost of all scaffolding derricks jim holes, tools and plants including cost of all cutting threading of pipe where required & all socket etc. complete to the satisfaction to the Engineer-In-Charge.

Lowering of 200mm outer dia PVC filter pipe as per ISI 12818 with slotted including cost of coller/socket with necessary jointing material including cartage, loading unloading and assembly with PVC pipe. The sockets shall be per specification in item No. 2 above for jointing the allotted length the plain pipe including the cost of lowering into bore in vertical position including cost of all scaffolding of pipe where required & all socket etc. complete to the satisfaction to the Engineer-In-Charge.

Providing and fixing in position of suitable size end cap for 200mm dia PVC pipe complete to the satisfaction of the Engineer-In-Charge.

Supplying and packing graded gravel of size as per IS : 4097-1967 as amended upto date and specification attached with this schedule of item of works. The gravel should free from dust, disintegrated of vegetable matters. Packing to be done from the housing pipes, to the bottom of inner pipe. Thickness and size of the gravel packing will be as directed by the Engineer-in-charge strictly per relevant ISI.

Providing MS Clamp suitale for 200mm dia PVC pipe manufactured from flat size 8” x 3/8’ as per IS 226-1975 as amended upto date.

Development of tubewell according to clause 9.3 of ISI 2800-1991 (Part-I) as amended upto fate and specification attached or as directed by the Engineer-in-Charge including the cost of all consumable stores, fuel oil compressor pumps and other tools and plant and machinery etc. (i) When development is done by pumps of suitable rating

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