Had not thought about that, doing some digging...
Map of the prawn farm at Yamba show its on the east side of Palmer Island, and west of Thorny Island, so its not all right on the main river.
https://tassalgroup.com.au/wp-content/uploads/sites/2/2020/08/map.png
Floods are below minor flood levels at the 2nd last station at the caravan park, which is downstream from Prawn farm.
http://www.bom.gov.au/fwo/IDN60231/IDN60231.558060.plt.shtml
At the next state upstream (not sure exactly where) its at a similar level the previous states, but doesnt show what flood levels are there.
http://www.bom.gov.au/fwo/IDN60231/IDN60231.558062.plt.shtml
Further upstream at Maclean its projected to be major ot moderate flooding tomorrow.
http://www.bom.gov.au/fwo/IDN60231/IDN60231.558022.plt.shtml
Im sure flooding was given consideration during planning, and it being below minor flood levels at the caravan parks gives me some confidence, but expect they are busy planning for the worst, we will see.
