Hi Claude,
Thank you for your question. I have been in contact with Mihir, our Senior Manager of our First Nations Program at EWB. He was involved in the scoping of the Port Stewart Challenge. His response:
The population number 200 is very high. Total population at Port Stewart is around 30-40. Since the lower camp impacted by flooding no one stays at the lower camp. Entire population is staying at main base and Upper camp and other camps (Silver Plain & Running Creek).
While, I do not have exact numbers for water usage per person, it should be noted that water usage is much lower than in other areas of Northern Queensland.
I hope this helps.
Kind regards,
Evelyn