Hi Russell,
I am part of a research team at the SMART Infrastructure Facility (University of Wollongong). We design & build IoT solutions for interesting community-driven projects. We use LoRaWAN for many of our applications and are looking into water quality applications for an increasing number of projects here in the Illawarra, NSW.
Let me know if you are interested (http://digitallivinglab.uow.edu.au/contact/) & we can see what might be possible
Cheers,
Hugh