D Devaraj Urs Backward Classes Development Corporation Tender

dbcd01 - Geophysical Investigation of site for sinking borewell for supplying irrigation water to the site either through MWS or by vertical electrical sounding by adopting venner or schnumberger's method, including reconnaissance survey of geological formation, geophysical investigation of existing ground water in the vicinity, its quality, quantity and acceptability of the users indicating the location of the site, recommended depth of casing pipe required to seal the top unconsolidated formation including an extra depth of one meter in consolidated formation of proper seating of casing pipe, depth of drilling required to cover full depth of aquifer proposed to be tapped, probable yield and other information required including transportation of instrument and accessories to work site, engaging technical personal and labour required etc. Geologist engaged by DA shall also locate feasible point to dig open well in the beneficiary land under MGNREGA scheme looking into the surface water flow for recharging borewell.

dbcdc09 - Sinking of Borewell of 165mm dia clear using super fast hydraulic rig of capacity 300 PSIG & above 1100 CFM & above in all strata including over burdernupto 20 m. Fixing of casing pipes, collars and cap with necessary cutting, threading and welding including transportation of rig and supporting vehicle, crew charges and cost of consumables etc., complete including yield testing at the final depth with a minimum working of compressor for one hour (Excluding cost of casing pipes, collars, cap etc., complete ) Borewell Depth 350 to 400 Mtrs

dbcdc08 - Sinking of Borewell of 165mm dia clear using super fast hydraulic rig of capacity 300 PSIG & above 1100 CFM & above in all strata including over burdernupto 20 m. Fixing of casing pipes, collars and cap with necessary cutting, threading and welding including transportation of rig and supporting vehicle, crew charges and cost of consumables etc., complete including yield testing at the final depth with a minimum working of compressor for one hour (Excluding cost of casing pipes, collars, cap etc., complete ). Borewell Depth 300 to 350 Mtrs