Question { 8985 }

A bill was raised by contractor which read as follows
1.) Excavation in normal soil upto 1.5m - 250 cum
2.) Excavation in normal soil 1.5m to 3m - 240 cum
3.) Excavation in soft rock - 350 cum
4.) Excavation in hard rock - 250 cum
5.) Filling with available soil - 825 cum
6.) Filling with bought out soil - 1100 cum

How can I verify the above quantities, especially for item
no. 5 & 6?
What checks are necessary before releasing the bill ?

Answer