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The Dunedin City Council is targeting the ''silent majority'' with the launch of its latest residents' opinion survey.
Letters have been sent to 4500 residents, selected at random, inviting them to take part in the annual survey, council services and development general manager Simon Pickford said.
The survey, which is also open to the general public on the council's website, runs until July 17 and is costing the council $40,000.
Mr Pickford said the results provided ''valuable feedback'' on the council and its services, and allowed the ''silent majority'' to have their say.