Yes, Google is going to cool a Georgia data center with greywater. Online news The Register (Biting the hand that feeds IT - funny!) reports that ... With the cooperation of the WSA, Google tapped into that utility's water-treatment plant to suck away around 30 per cent of greywater that would otherwise be dumped into the nearby Chattahoochee River...
The system allows Google to use recycled water for a full 100 per cent of its plant-cooling needs, and the water that ends up in The Hootch is cleaner than it would have been if it had never been taken from the WSA's treatment stream, Google says. Here is a video of Google describing the process.
Not only does the use of greywater help the WSA and the river, it makes smart business sense for Google as well, seeing as how it doesn't need to compete for fresh, drinkable water with other businesses and residents during drought periods – there should always be enough grey water available.
Oregon's greywater rules and regulations are already out-of-date given this news and the emphasis on a strict outdoors use, and the greywater permit machine is not even up and running yet. Careful examination of the comments section of The Oregonian article indicate that some folks think western Oregon is missing out on one heck of an opportunity. This is an area of Oregon where the bulk of the greywater generation and potential reuse as cooling water could occur. This approach might even help address the Total Maximum Daily Load of temperature in Oregon's treasure - The Willamette River - as addressed in this posting.