By Marjorie Cook of Heavy rain overnight filled a Wānaka developer's water retention plant to over-capacity, forcing contractors to release water down Wineberry Lane onto Aubrey Road, resulting in gardens being flooded and houses being sandbagged. An Otago Daily Times reporter at the scene said an engineer, a flood prevention manager, contractors, the Wānaka's Fire Brigade and a digger were on site working to control the water flow this morning.