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Two leaked staff surveys show significant numbers of Delta workers have been concerned about the infrastructure specialist company’s attitude towards health and safety.
The full 2014 staff survey results and a summary of the 2016 results show overall staff satisfaction is lagging behind New Zealand averages.
Delta manages electricity distributor Aurora's network.
Meanwhile, two current Delta workers have come forward to back whistleblower and former Delta employee Richard Healey’s claims the electricity network is unsafe and say he has the support of the majority of workers.