Tauranga City Council says 6,622 tonnes of glass has been diverted from landfill in the year since it introduced its rates-funded kerbside glass recycling service.
About half of the glass was collected from kerbsides and half from transfer stations.
The council estimated that 1440 tonnes a year was collected previously and only 40 to 60 per cent ended up being recycled due to broken glass contaminating recycling bins.
This comes as the first anniversary of Tauranga City Council's glass recycling service is celebrated.
A total of 3,313 tonnes of household glass was collected from the kerbside – more than double the amount collected under previous kerbside glass recycling collections run by the private sector.