*It is to be noted that quoted boring rate must be increased proportionately from shallow to deeper range otherwise tender will be considered non-responsive without acceptable clarification
**It is to be noted that tube well must be installed more or less 10% from the estimated depth.

*It is to be noted that quoted boring rate must be increased proportionately from shallow to deeper range otherwise tender will be considered non-responsive without acceptable clarification
**It is to be noted that tube well must be installed more or less 10% from the estimated depth.

Materials will be stored in the concerned upozila office compound before starting the work, then, sample will be collected and will be sent for laboratory test. After receiving successful test result, the work will be started.