A state of emergency previously declared in Timaru lifted on Saturday.
The Timaru District Council said the emergency operations centre would be closing after 3pm, and that it was back to "business as usual".
The situation would be continuously monitored and emergency teams were on standby.
Residents previously evacuated from their homes returned on Saturday afternoon but boil notices were in place for people in Te Moana, Seadown, Rangitata Huts, Pareora and St Andrews.
Three homes in the Redruth area and seven business premises in Washdyke had been flooded.