sentences:  These findings were disputed by Waterview Primary School representatives, who claimed that the report hadn't taken into account the impact of tolling "which could add more traffic to surface roads", hadn't given sufficient consideration to "international best practice on air filtering", and had failed to account for "ventilation fans being turned off during off-peak times, allowing emissions to escape through the tunnel openings".They also asked for reconsideration of "taking a section of the school’s playing field for use during the five-year construction period".Concern was also expressed by developer Greg Burgess, who had consent for building 83 new homes 19 metres away from the Owairaka ventilation stack.