Stuff I wrote elsewhere: first-ever San Juan Chama Project shortfall

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basinThe standard Bureau of Reclamation map of the Colorado River Basin has a series of red-dashed slivers beyond the physical boundaries of the basin itself, the places where we’ve chosen to artificially extend the watershed’s boundaries. In the process, we have created entire communities dependent on the success or failure of the basin’s water management policies.

One of those slivers, slicing through central New Mexico, includes my house. I live outside the basin proper, but my morning coffee is made in part with Colorado River water. Yesterday, via a dam across the Rio Grande at the north end of Albuquerque, my local water utility diverted 46.6 million gallons of water, a significant portion of which was diverted from the Colorado River Basin for use in my coffee.

This has always been the starting point for all this crazy Colorado River stuff I do, this notion that we’ve plumbed together this super-watershed and we’re now all in this together. Which is why I wrote this story in this morning’s Albuquerque Journal:

The San Juan-Chama Project, which delivers water from the mountains of southwest Colorado to central New Mexico, had the first shortfall this year in its four-decade history after three consecutive years of bad snowpack.

Water managers say the impact on Rio Grande Valley water operations was small, but the implications are significant – a demonstration that a supply once seen as dependable backup to a faltering Rio Grande might not be as reliable as once thought.

“It’s one of those things that was always a theoretical possibility, but nobody thought it would come to pass,” said David Gensler, water manager for the Middle Rio Grande Conservancy District, which serves farmers.

On New Mexico’s Rio Grande, a brutal four years

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With a sub-par snowpack once again in New Mexico’s high country, I got a Twitter question this morning about the last time we’d had a good snowpack. My favorite came in 2008, when I was just starting to track this sort of thing closely:

SAN MARCIAL— Water was already lapping at the side of the levee last week as Carolyn Donnelly drove down a dirt road parallel to the Rio Grande. The road runs along the top of a levee built in the 1950s to hold back the river. But Donnelly, a hydraulic engineer whose job is to help manage the unruly river, uses the word “levee” cautiously.

A, for the good old days, when spring runoff lapped at the sides of levees. The last decent runoff we had was in 2010. The brownish-yellow is the median, the blue line is actual:

Runoff at Albuquerque, 2008 - present, courtesy USGS

Runoff at Albuquerque, 2008 – present, courtesy USGS


As Chris Cervini said, “That’s a brutal last four years.”

Lake Mead in 2014 headed for second biggest drop in modern era

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With just a few days left, it looks like Lake Mead will end 2014 down 19 feet, which would be the second biggest one-year drop of the “modern era” (the years since completion of Glen Canyon Dam upstream damped down the river’s ups and downs).

Lake Mead annual elevation change

Lake Mead annual elevation change

With inflow largely regulated by Glen Canyon Dam and outflow largely determined by downstream use, Mead is plumbing. Climate plays a role here, but climate is heavily buffered by management decisions, so to understand what’s happening we need to look at institutions as much as the weather upstream.

Here are the key factors responsible for this year’s big drop:

  • Less inflow than usual – a release of only 7.48 million acre feet from Lake Powell, rather than the usual 8.23 maf, in conformance with rules aimed at keeping levels in the two reservoirs balanced (background here)
  • More outflow than usual – the Metropolitan Water District of Southern California has been cashing out some of the credits it had built up under the water banking scheme known as “Intentionally Created Surplus”, so water left in Mead in previous years as a hedge against drought is being used. Also, Mexico took out some of its banked water for last spring’s Minute 319 environmental pulse flow.

The previous pre-Glen Canyon Dam record for biggest one-year drop came in 2002, the last year in which California was allowed to use excess supplies before it had to curtail its usage to stay within its legal 4.4 million acre feet per year allocation.

All this is very orderly, and was expected, but that makes it no less unsettling if you’re Las Vegas or Arizona, looking at threats to long term water supply as Mead continues to drop.

 

 

the dwindling of California’s “wretched little mud-holes”

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John Van Dyke, in his epic visit to the deserts of western North America a century ago, wrote harshly of their springs:

Occasionally one meets with a little stream where a fissure in the rock and a pressure from below forces up some of the water; but these springs are of very rare occurrence. And they always seem a little strange. A brook that ran on the top of the ground would be an anomaly here; and after one lives many months on the desert and returns to a well-watered country, the last thing he becomes accustomed to is the sight of running water.

In every desert there are isolated places where water stands in pools, fed by underground springs, where mesquite and palms grow, and where there is a show of coarse grass over some acres. These are the so-called oases in the waste that travellers have pictured as Gardens of Paradise, and poets have used for centuries as illustrations of happiness surrounded by despair. To tell the truth they are wretched little mud-holes; and yet because of their few trees and their pockets of yellow brackish water they have an appearance of un-reality.

The real palm springs

The real palm springs

Wretched or not, I have loved them all my life – the turn of a bend on a desert canyon trail, to come upon a grove of cool palms. Which is why Ian James’ story in the Desert Sun this morning made me so sad:

As a boy in the late 1940s, Harry Quinn hiked with his family to a desert spring in the Santa Rosa Mountains where cool water flowed into an oasis filled with tadpoles.

Now the spring is dry. The tadpoles and toads are long gone. Four palm trees remain in the dry canyon, two of them dead.

“This was a special place,” said Quinn, now 75, as he walked through the remnants of the oasis known as Dos Palmas. “You just can’t come here and get a drink anymore.”

There’s some science here – dwindling snowpack feeding the aquifers that find their way to the fissure in the rock, warming temperatures, that sort of thing. But mostly for me it’s just sad, one more piece of my childhood fading into the past.

Lake Mead: 40 percent full, or 60 percent empty?

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Annie Snider left an excellent summary in our Christmas stocking of the state of play on the Colorado River. Lake Mead approaches the end of the Calendar year at elevation 1,087 feet above sea level, which is nearly 20 feet below last year at this time, as basin water managers scramble to build new institutional widgets aimed at propping up the lake’s level against looming shortage declarations. A deal signed this month takes the next step:

All sides agree that the deal, signed during the users’ conference here, won’t begin to solve the basin’s overarching problems. For one thing, users have only mapped out the path to 750,000 acre-feet of those reductions and are back-weighting the targets.

But it does suggest states are prepared to share the pain rather than battle over the remaining water in court.

It also follows an earlier agreement among water users in the Lower Basin this summer to conduct an $11 million conservation pilot program (Greenwire, Aug. 1).

“I think the significance of the system conservation agreement isn’t the volume of water; it isn’t the amount of money; it’s not even the parties who are there,” said John Entsminger, general manager of the Southern Nevada Water Authority.

“It’s the fact that for the first time on the river, we see major water users acting with the basin as a whole in mind and getting to that equilibrium and treating the system as the beneficiary rather than acting in their own local best interest and trying to put water in their bank accounts.”

Deputy Interior Secretary Mike Connor at the San Luis Bridge, March 28, 2014, watching the delta pulse flow

Deputy Interior Secretary Mike Connor at the San Luis Bridge, March 28, 2014, watching the delta pulse flow

But Snider quotes Deputy Interior Secretary Mike Connor sounding cautious:

Michael Connor, the Interior Department’s second in command, who helmed Reclamation for more than four years, had tough words for his former colleagues in the basin.

If conditions worsen without consensus from the states on what to do, the federal government will have to step in, he told them at the conference.

“We need more urgency, more definitive commitments and more collaborative agreements,” he said. “Without proactive agreements, I fear the Colorado River Basin will return to its past and replicate what still goes on in many basins, which is conflict, litigation and gridlock.”

The entire piece, which seems to be out from behind the E&E paywall, is worth reading.

Estevan gets his picture on the wall

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In March, President Obama nominated New Mexican Estevan López, who at the time was head of the New Mexico Interstate Stream Commission, to head the U.S. Bureau of Reclamation. It was a big deal in a number of ways, not least of which was that, in replacing Mike Connor, López would be the second New Mexican in a row to head this incredibly important water agency. But then, as happens with things that require Congressional action these days, the nomination languished, leaving the Bureau and New Mexico water management in limbo.

Finally in October, López went back to Washington to serve as “principal deputy” at Reclamation, a position that didn’t require any congressional action. He was for all purposes running the agency, in all but title. But with Congressional action such a dicey game these days, it seemed entirely possible that he would serve out his term, running the agency and doing all the work, without ever actually getting the formal title or, as a friend put it, “getting his picture on the wall.”

So I was happy to see the tweets out of Reclamation today after his name was included earlier in the week on a list of what were described as “non-controversial nominations” to which the Senate gave its assent. If you know Estevan, you’ll recognize the grin in the second picture:

Estevan López being sworn in as Commissioner of Reclamation

Estevan López being sworn in as Commissioner of Reclamation


Estevan López, smiling after being sworn in as Comissioner of Reclamation

Estevan López, smiling after being sworn in as Comissioner of Reclamation


So now he gets his picture on the wall.

Using less water, Queensland edition

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“The average daily water consumption across the south east in November 2014 was 190 litres per person per day. This is a stark contrast to consumption levels before the millennium drought, when the region’s residents were using an average of 330 litres per person per day.”

That’s Queensland, Australia. To translate to U.S. measures, that’s down from 87 gallons per person per day to about 50. By comparison, Albuquerque (which I frequently cite as a success story) is currently at about 135 gallons per person per day, down from some 250 in the mid-1990s.

We can do this.