Directorate Of Municipal Administration Tender

ITEM01 - Geophysical investigation at site for sinking borewells for supplying drinking water to the habitation either through the Hand Pump MWS or P.W.S.S, by vertical electrical sounding by adopting Venne or Schlumbergers’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 1.0 metre in consolidated formation for proper seating casing pipr depth of drilling required to cover full depth of aquifer proposed to be tapped, probable yield and other agigng information required including transportation of instruments and accessories to work site, eng technical personal and labour required etc. NOTE: 1)Additional rate on item 1&2 is allowed for drillinge in over burden and fixing Casing pipes beyond 20 M (for fixing Casing pipes only) a)Above20M and upto 30 M - 15%, b) Above 30 M - 30% (Measurement of overburden is restricted to the depth of casing pipe fixed excluding initial depth of 20M and projection above ground level). 2) A sum of Rs. 100/-is to be deducted for Dry Borewell towards yield test.

ITEM02 - Sinking borewell of 150mm dia. clear, using super fast hydraulic rig of capacity 250 PSIG & above 900 CMF and above, in all strata of earth, including over burden upto 20M, fixing of casing pipes, collars and cap with ncessary cutting, threading and welding including transportation of rig and supporting vehicles, crew charges, cost of consumables, cost of yield test at the final depth with a minimum worging of compressor for one hour etc. complete. The cost excludes the cost of casing pipes, collars and caps etc (0 TO 50m)

ITEM06 - Sinking borewell of 150mm dia. clear, using super fast hydraulic rig of capacity 250 PSIG & above 900 CMF and above, in all strata of earth, including over burden upto 20M, fixing of casing pipes, collars and cap with ncessary cutting, threading and welding including transportation of rig and supporting vehicles, crew charges, cost of consumables, cost of yield test at the final depth with a minimum worging of compressor for one hour etc. complete. The cost excludes the cost of casing pipes, collars and caps etc.(50 TO 100 m)