Workers found three bombs at a recycling centre on Giffords Way near West Bromwich and Oldbury at 9.50am on Thursday, only three days after two Second World War bombs had been found by staff at the site.
The Army Ordnance Disposal team removed the devices after examinations showed they posed no risk.
The two bombs found on Monday were also safely disposed of but the site remains closed until a surveyor has attended to assess the land further.
