WBPHE/AE/BMSD(D)/NIeT-08 of 2025-26/3

Mobilisation and transportion of the Rig machine and its accessories and others materials, etc. to the site.

Drilling bore hole in DTH methodt hrough any kind of soil sand rocks in over burden suitable for lowering and fitting fixing of 125 mm dia. casing pipe up to an average depth of 39 mtrs. and sub sequently 115 mm diameter boring through any kind of rocky formation upto a total depth of 120 mtrs including all other works necessary for boring as per direction of E.I.C This item includes the cost of hiring of Rig machine,Compressor,Supporting vehicle and other machinery & equipments with operators, drivers, laborers etc. Proportionate cost of drilling tools and accessories suchas Hammer, Bit, etc. Cost of consumable materials like fuel & lubricants, anyother related equipment,materials and service etc. as per technical specification.

a) 0 to 39 mtr (Over burden)

b) Over burden / from 39 mtr to 120 mtrs and above

Supply & delivery of 125 mm internal dia UPVC casing pipe (minimum wall thickness 6.5mm) having 3 mtr length each both end threaded and one end socketed as per IS-12818CM/CS (CEPET testmay be performedbefore supply at store as per direction of EIC)

Supply and fittings of bottom plug, top cap,clamp guide, others important items as perdirection of EIC.

Washing and development of tube well with air compressor pump and engine for 8 hours continuous pumping per day with necessary arrangement for testing yield in GPH with "V" notch including hire and labour for tools and plants and scaffolding as required complete in all respect.

Add GST @ 18%

Add Cess @ 1%

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