The call came in at 8:25 a.m. Wednesday from the tower at the Dupont Granogue Estate in the 2000 block of Montchanin Road.
Chopper 6: Rescue from water tower
Rescue crews arrived to find the 59-year-old worker, who had fallen while performing maintenance work inside the tower.
They secured her in a mobile stretcher.
The spiral staircase inside the tower prevented rescuers from walking her down to the ground level.
So instead they hoisted her in the stretcher to the top of the tower.
Chopper 6 HD was there as a Delaware State Police helicopter arrived and transferred the worker by air from the top of the tower to an ambulance waiting on the ground.
She was taken to an area hospital in serious condition to be treated for head, arm, neck and back injuries.
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