The water quality and ecology have been closely monitored at Eprapah Creek (Victoria Point, Queensland) over thirty years by Redland Shire Council, Environmental Protection Agency (EPA) and local community groups.
Although the estuarine zone includes two environmental parks, there are some marinas and boat yards, and a major sewage plant discharge that affect the natural system.
During these studies, high frequency turbulence and physio-chemistry data were collected continuously over a relatively long duration (up to 50 h), and the findings have direct implications on the modelling of small estuaries.
The studies showed that the response of the turbulence and water quality properties were distinct under spring and neap tidal forcing and behaved differently in the middle and upper estuarine zones.
Some strong vertical stratification of the water column was observed at all sampling locations, but the longitudinal distributions of dissolved oxygen and turbidity showed a quasi-homogeneous estuarine system, in sharp contrasts with dry weather data sets.