Optimization is really building a community of practice among actual waste water treatment plant operators. They actually tweak their systems to get them to maximize the extraction of nutrients and harmful things from the sewage stream and create a better quality of practice. What it results in is really the deferral or possibly even cancelling of major capital upgrades and just working the plants to their fullest possible capacity rather than just putting more dollars into building more capacity. So it's really a process that we work with.
There's a pilot under way in the Grand River watershed where we're working with specific treatment plant operators to improve their plants.