SPL REPAIR FOR REPLACEMENT OF BER BOREWELL AT VRG LINE COD KANPUR UNDER GE (I) KANPUR

M&L for Drilling vertical bore 675 mm dia depth upto 72 Mtr by Direct Rotary Rig drilling machine at approved site/location in any type of strata for 350 mm ERW casing pipe for various depth as shown below including all works to pertaing to boring complete all as specified and directed. Note :- ERW pipe will be considered seperately

All as per item No. 1.00 above but of size 525 mm & depth exceeding 72 mtrs but not exceeding 150 mtrs complete all as specified and directed.

All as per item No. 1.00 above but of size 525 mm & depth depth exceeding 150 mtrs but not exceeding 235 mtrs complete all as specified and directed.

All as per item No. 1.00 above but of size 525 mm & depth depth exceeding 235 mtrs but not exceeding 320 mtrs complete all as specified and directed.

All as per item No. 1.00 above but of size 525 mm & depth depth exceeding 320 mtrs but not exceeding 400 mtrs complete all as specified and directed.

Reaming (Expanding) vertical bore of pilot bore of 675 mm from (Ground level) 0 to 72 mtr deep below the ground level including all works pertains to boring complete all as specified and directed.

Reaming (Expanding) vertical bore of pilot bore of 525 mm dia exceeding 72 Mtr but not exceeding 150 Mtr deep below ground level including all works pertain to boring complete all as specified and directed.

Reaming (Expanding) vertical bore of pilot bore of 525 mm dia exceeding 150 Mtr but not exceeding 235 Mtr deep below ground level including all works pertain to boring complete all as specified and directed.

Reaming (Expanding) vertical bore of pilot bore of 525 mm dia exceeding 235 Mtr but not exceeding 320 Mtr deep below ground level including all works pertain to boring complete all as specified and directed.

Reaming (Expanding) vertical bore of pilot bore of 525 mm dia exceeding 320 Mtr but not exceeding 400 Mtr deep below ground level including all works pertain to boring complete all as specified and directed. NOTE :- (i) The following tests are to be carried out and reports as mentioned to be submitted by the contractor which is deemed to be inckuded in the rates quoted :- (ii) Recording the well discharge during drilling by 90 degree V -notch. (iii) Recording the water bering horizon. (iv) Taking the sample of starta at every 3.0 mtr interval & every stage of change of strata & pracipirtation of lithiologs based on these samples. (v) Preparation of drill time log & submitted to dept. (vi) Carrying out aquifer performance test at constant discharge with draw down & recovery reading. (vii) Yield test as specified (paid separately against Item No 24) (viii) Location of borewell shall be as per CGWB report which is already obtained by dept, copy of reeport shall be made available to Contractor. (ix) Vertical test should be carried out by ther contractor from authrised agencies & report should be within tolarance limit.