Garhkhera- Drilling of 01 N...

Drilling of 609.60 mm dia bore by Direct rotary drilling rig. according to ISI specification No.2800-1991 (Part-1) as amended upto date and modified to extent of the specification attached with this schedule of items of work in all kinds of soils and boulders upto 125mm dia except rocky strata including the cost of all consumable stores, fuel oils, soil, stabilizing material and transportation of rig and other accessories to the site of proposed bore and back, complete to the satisfaction of the Engineer-in-Charge

Providing and fixing of 2` i/d delivery pipe class B ISI marked of approved make complete in all respect to the satisfaction of Engineer-in-charge.

Resistivity survey with deep penetration, generator opetared, D.C. resistivity meter to kown the type of sub surface starta at different depths. Quantity of water likely to be available and depth of the tubewell to be installed to obtain fresh water in required quantity including transportation of equipments and manpower, submission of hard copy of resistivity survey with relevant technical date complete in all repect to the satisfaction of Engineer-in-charge.

Providing and fixing of cast iron (C.I) D plate of size 300mm dia x 10mm thikness having weight 7 kg to cover the top borehole fastened with nut and bolts and clamp placed on its top for holding the pump set and GI pipes lowered in the tubewell complete in all respect to the satisfaction of Engineer-in-charge.

Providing and fixing of G.I clamp 50mm wide and 10mm thick suitable for holding to 50mm G.I pipe class B and pumping machinery complete in all respect to the satisfaction of Engineer-in-charge.

Providing and fixing of 2` i/d nipple made out G.I pipe class B and welded with flange having holes for fasting with pipe and threaded at other end with 8 threads in one inch(25mm) complete in all respect to the satisfaction of Engineer-in-charge.

Inspection of tubewell with Geo Scanning borehole camera with display and data recorder to find out the fault and submission of suggestions regarding rectification of same to obtain the sand free water at site Including Transportation, Lodging, and Boarding. Detailed Analysis with Videography and Submission of Report, Video and also verifying the depth/ position of assembly complete in all respect to the satisfaction of Engineer-in-charge.

Supplying and jointing 4 core service cable 25 sq mm of approved make with bare bunched aluminium conductor insulator and sheathed with PVC etc. with voltage grade 1100 volts marked with IS 694:1990 including cost of jointing, material, carriage, loading and unloading etc. complete in all respect to the satisfaction of Engineer-in-charge.

Supplying, erection, testing and commissioning of submersible pumping sets as per BIS SPECIFICATION No. 8034-1989 (as amended upto date for pumps) and IS 9283-1979 (as amended upto date for motor) the pump motor sets should be capable of pumping clear fresh cold water having characteristics as specified in Clause-4 of IS 8034-1989 and Clause 4.1 of IS 9283-1979 (LPM 400 Head 70 BHP BHP 12.50)