Old Newspapers

...are sometimes interesting to read. This NYT piece from last October is still interesting. First it's got a mistake:

It had been a wet season on the east slope of the Rockies, but the farther west we went, the drier it became. Udall wanted to show me some of the local reservoirs and water systems that were built over the past century, so I could get a sense of their complexity as well as their vulnerability. As he put it, he wants to connect the disparate members of the water economy in a way that has never really been done before, so that utility executives, scientists, environmentalists, business leaders, farmers and politicians can begin discussing how to cope with the inevitable shortages of fresh water. In the American West, whose huge economy and political power derive from the ability of 20th-century engineers to conquer rivers like the Colorado and establish a reliable water supply, the prospect that there will be less water in the future, rather than the same amount, is unnerving. “We have a very short period of time here to get people educated on what this means,” Udall told me as we drove through the mountains. “Then once that occurs, perhaps we can start talking about how do we deal with it.”

Didja see it? A shortage is not inevitable if we raise water prices (or allow markets to function).

Well, anyway, there's an interesting example of a $750 million toilet-to-tap tube:

Another practice, sometimes used in Europe, is to drill wells alongside a river and pull river water up though them, using the gravel of the riverbank as a natural filter — sort of like digging a hole in the sand near the ocean’s edge as it fills from below. Half of Aurora’s water rights were on the South Platte already; the city also pours its treated wastewater back into the river, as do other cities in the Denver metro area. This gives the South Platte a steady, dependable flow. Binney and the township reasoned that they could conceivably, and legally, go some 20 or 30 miles downstream on the South Platte, buy agricultural land near the river, install wells there and retrieve their wastewater. Thus they could create a system whereby Aurora would use South Platte water; send it to a treatment plant that would discharge it back into the river; go downstream to recapture water from the same river; then pump it back to the city for purification and further use. The process would repeat, ad infinitum. Aurora would use its share of South Platte water “to extinction,” in the argot of water managers. A drop of the South Platte used by an Aurora resident would find its way back to the city’s taps as a half-drop in 45 to 60 days, a quarter-drop 45 to 60 days after that and so on. For every drop the town used from the South Platte, over time it would almost — as all the fractional drops added up — get another.

Many towns have a supply that includes previously treated water. The water from the Mississippi River, for instance, is reused many times by municipalities as it flows southward. But as far as Binney knew, no municipality in the United States had built the kind of closed loop that Aurora envisioned. Water from wells in the South Platte would taste different, because of its mineral and organic content, so Binney’s engineers would have to make it mimic mountain snowmelt. More delicate challenges involved selling local taxpayers on authorizing a project, marketed to them as “Prairie Waters,” that would capitalize on their own wastewater. The system, which meant building a 34-mile-long pipeline from the downstream South Platte riverbanks to a treatment facility in Aurora, would cost three-quarters of a billion dollars, making it one of the most expensive municipal infrastructure projects in the country

This quote is also great:

When I asked if the drought in his models would be permanent, he pondered the question for a moment, then replied: “You can’t call it a drought anymore, because it’s going over to a drier climate. No one says the Sahara is in drought.”

This is why reporters are great -- they go and find interesting stories. (All I need to do is sit in my bathrobe and comment on the story.)

Bottom Line: Water in the West is getting scarcer, and the ways we cope will vary with the climate and culture.

hattip to CC