The headline on this story is about Texans’ increasing interest in recycling water. That sounds nice, doesn’t it? But there’s another way of describing it that maybe isn’t so appealing.
Experts say recycled wastewater will play a key role in satisfying the thirst of a rapidly growing population. While reuse now provides 2 percent of Texas’ water, state officials say that over the next half-century the drought-proof source will account for at least 10 percent of new supplies.
To reach the goal, state lawmakers may require at least 20 percent of any new funding for water-related infrastructure to go toward conservation or reuse. The requirement is part of House Bill 4, which would allow a one-time transfer of $2 billion into a new revolving, low-interest loan program for water projects.
“This is a robust and reliable source,” said Jorge Arroyo, an engineer and director of innovative water technologies at the Texas Water Development Board, the state’s water-planning agency. “Its future is very promising.”
Before drought began gripping the state in 2011, the Texas Commission on Environmental Quality typically approved fewer than 20 reuse requests from cities and water districts each year. The number jumped to 32 two years ago and 38 last year, with 25 applications already pending this year, the agency said.
Arroyo attributed the increasing interest in reclaimed water in part to the lingering drought, which covers 74 percent of the state. He also credited improving technology, which now is capable of turning sewage into water so clean it’s almost distilled.
Water managers see wetlands as a reliable, less-expensive solution to more dams, aqueducts and pipelines that deliver water over long distances. Wetlands allow them to reuse water that they already paid at least once to store and purify.
For all the interest in toilet-to-tap technology, more new potable reuse projects will take the indirect route through wetlands, rather than go straight to the faucet, Arroyo said. Meanwhile, most water reuse will continue to be for irrigation, landscaping and purposes other than human consumption.
I’m going to step out on a limb here and venture that if you were in charge of an advertising campaign for water recycling, you might prefer to steer clear of the phrase “toilet to tap technology”. I mean, you probably don’t want people thinking too much about where that water originated. I know, I know, this is ultimately the way it goes for all of our water, with or without any fancy new technology. I suspect most people would rather imagine that their water all comes from a nice reservoir or a cool mountain stream or something like that. It may not matter that much if most of the recycled water goes to things like irrigation or decoration or other non-drinking purposes. I’m just saying.