State regulators have approved a new method of giving Californians some relief: treating and converting sewage waste into pure drinking water. As water resources continue to become more scarce as a result of human activities, "extreme" water recycling methods may become more commonplace.

The practice recently approved by state regulators is "direct potable reuse," meaning that purified wastewater can now be fed straight into drinking water systems without passing through an environmental buffer such as an aquifer or reservoir.

While critics of the idea have had understandable qualms about drinking water that was formerly sewage, the technology has been proven to be safe and reliable. In some parts of California, such as Orange County, the practice is already partially in effect, as wastewater is purified, blended into aquifers and reservoirs, and then eventually drawn back to the surface and used for drinking water. This practice is known as "indirect potable reuse."

So, the previously unthinkable for many, to re-use used water, is now reality and will soon be normality. The same goes for recycling of airborne wastewater which is another high-potential water resource now being considered by many.

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