Bougainville's administrator, Chris Siriosi, says the Papua New Guinea province is hopeful more Second World War weapons can be retrieved in about 12 months.
An Australian led team completed a three week long exercise earlier this month and recovered hundreds of bombs and other weapons from around Torokina.
Mr Siriosi says the people there are delighted they can now safely access their land.
He says more bombs are there but before another removal team comes in, the government will seek experts to document the location of the weapons.
"Because you don't want an operation to come in and do this work. Too expensive having people sitting down, idle, waiting for such work to be done. So it is best for us to do the work of identifying the bombs, their locations and then make a decision on whether or not to invite in experts to rid our community of these bombs."