Share this Post:

unEARTHED. The Earthjustice Blog

Healthy Coexistence: Key to Saving San Pedro River


    SIGN-UP for our latest news and action alerts:
   Please leave this field empty

Facebook Fans

Related Blog Entries

by Doug Pflugh:
A Year of Threats Looms for Western Rivers

We’re less than a month in, but 2014 is already shaping up to be a tough year for rivers. Across the nation, from West Virginia to California, t...

by Shirley Hao:
Engineers of the San Pedro River

The San Pedro, the last free-flowing river of the Southwest, has had an unusual cast of champions. Ecologists, birders, an emergency room physician&md...

by Doug Pflugh:
Defending Arizona's

Earthjustice has worked with our partners for more than a decade to sustain the San Pedro River of southern Arizona. Our attorneys have taken legal ac...

Earthjustice on Twitter

View Doug Pflugh's blog posts
11 February 2014, 2:20 PM
Suit seeks to make Army help protect the river and its species
The upper reaches of the San Pedro River's ecosystem. (Melanie Kay / Earthjustice)

Two endangered species that call the San Pedro River in Southern Arizona home—the Huachuca water umbel and southwestern willow flycatcher –should have their long-term survival guaranteed under the Endangered Species Act. Unfortunately, those species have waited in vain for that help while two federal agencies have dragged their feet.

A suit filed at the end of January by Earthjustice attorneys Melanie Kay and McCrystie Adams seeks to end that wait and compel the U.S. Army’s Fort Huachuca to coexist with the San Pedro and the plants and animals that are the original inhabitants of the valley.

Kay and Adams brought this suit to force the Army and the U.S. Fish and Wildlife Service to comply with a 2011 court order that mandates the agencies to implement a viable plan to meet the Fort’s mission without jeopardizing the endangered flycatcher and umbel. The Fort has been operating outside the law, having failed to produce a plan—known as a Biological Opinion—that meets the requirements of the ESA and the court’s order.

Along with our clients, we hope this case will cap the string of legal victories that have marked our work to protect this jewel of the desert and ensure that the San Pedro will continue to flow.

The San Pedro River nourishes a rare swath of green as it cuts across the desert, heading north from the Mexican border to the Gila River east of the Grand Canyon State’s major metropolitan areas. We have written at length about the importance of this river, about its role as a lone remnant of a lost network of desert riparian areas and the critical habitat that it provides. The magnitude of its contribution to our ecology bears repeating, however…

The Southwestern willow flycatcher. (USGS)The Southwestern willow flycatcher.  (USGS)

Numerous mammals, reptiles, amphibians and fish depend on the San Pedro. Representatives of nearly half of the bird species in the United States spend time in the San Pedro River watershed; the river corridor is one of the most important migratory flyways in the United States, hosting millions of songbirds each year during their migrations between Central America and Canada. In addition to the endangered water umbel and flycatcher, the river is also home to the western yellow-billed cuckoo and the northern Mexican gartersnake, two species recently proposed for listing under the ESA.

The same factors that make the river so important—its uniqueness in the desert landscape—also explain the risks that imperil the San Pedro. The surface flows and the aquifers that funnel water from the Huachuca Mountains to the river channel provide the only accessible water in the basin. And this water is as important to the groundwater-dependent Fort Huachuca and the growing community of Sierra Vista as it is to the flora and fauna along the river corridor.

Resident conservationists of the Upper San Pedro valley, business interests and the Fort have engaged for more than a decade in multiple efforts to resolve the fate of the San Pedro. There have been public processes, committees, media campaigns and, of course, litigation as the different parties worked for their vision of the future of the river.

Arguably, there has been progress. An understanding of the role of the river in the local community and economy and the need for wise water use has blossomed, and the fate of the San Pedro has taken center stage in the local conversation. Notably, the Fort and others have embarked on efforts that they claim reduce or offset the groundwater pumping that intercepts water bound for the river.

Local boosters point to this work and assert that the situation is under control. But should we really be declaring “mission accomplished?”

Put simply—no. The base flows in the San Pedro continue to drop and the species that depend on the river remain at risk. Although we have bought some time, a recent study demonstrates that within a century the river will run dry in key sections if groundwater pumping continues at the current rate. In truth, the work is far from done.

The San Pedro Riparian National Conservation Area. (BLM)The San Pedro Riparian National
Conservation Area. (BLM)

And that is why we are back in court, following through on the series of cases that have gotten us to this point where some, but not nearly enough, progress has been made.

The Biological Opinion is a critical piece of the puzzle in providing long term protection to the San Pedro and the many species which depend upon the river. Unlike other approaches, a rigorous Biological Opinion would provide meaningful and enforceable accountability and would move us forward from the grey area of competing studies and claims that has stymied real progress for the San Pedro.

There is no controversy regarding the need for the Fort and the US Fish and Wildlife Service to complete the Biological Opinion. The law is clear and the agencies do not contest the requirement. They have not, though, followed through on their duty, missing a series of self-imposed, generous deadlines. Now, nearly three years after the judge’s order, we have given up waiting on something that appears unlikely to come to pass on its own.

We are confident that the Fort can meet its essential national security work while helping to preserve our natural heritage. It is time for the agencies to lay out their path forward and move on with it.

Follow Doug on Twitter: @dpflugh_ej

Having just moved to Tucson, my husband and I rode our bikes yesterday on the dry riverbed that is the Santa Cruz River. I read a little about the Santa Cruz River, and was surprised to read the words "before it went dry." Apparently the Santa Cruz River used to flow.

I'm told (by an employee) that the flows that I see around town that make their way to the Santa Cruz are entirely grey water pumped from the sewage treatment facility. I'm not saying that's a bad thing. That's a very good thing, because the golf courses are using the grey water instead of the drinking water being pumped to Tucson from the Colorado, another river in danger, the pumping of said drinking water powered by the coal-burning power plant in Page.
What a mess. And we have contributed to the mess just by moving here.

"What a mess. And we have contributed to the mess just by moving here"

Not necessarily. Unfortunately, people will be moving over there regardless as long as there is plenty of relatively affordable housing available.
But you can be an example , use only an absolute minimum of water and everything else, make your home environmentally friendly and an eco oasis and spend your surplus time and money on protecting nature and environment around. Maybe, you make some of the golf course idiots move away.

If we are supposed to be the most intelligent species on this planet, why is it that we have not learned to live in harmony with all species? It seems to me that we have exacerbated the ‘use it mentality’. We use resources as though they have an infinite supply with no consideration for the future. We do not seem to comprehend that when we interfere with the web-of-life we are potentially condemning future generations to a life void of the variety of foods, clean water and air, all of which are essential to life, life for all species. When will we learn to live without creating the potential for species extinction? When will we learn to live in harmony with nature? When will we begin to think of future generations, not just the present one?

Apparently we are not capable of thinking of the future, as have been missing the boat for some 90 years I have to remember. Sad future when looking at our environment including the wild life remaining.

I am a Vet, it seems that with all the $$$ the military has been getting, money spent on sometime frivolous purchases and needs, that they could live up to their word of trust, to an agreement to do what they say they will do. They are not above the law, and in the fashion of "we the military are here to protect and defend"...I would think that those that completed the agreement , should complete their part, and "honor" their word. This is mandatory with soldiers and those that administrate. So in order to save face, they need to walk the walk, as well as talk the talk, or they are perceived as not to be honorable men or females, but just as bad as a bad corporation. That's how I see it!

I would contend that maintaining flows is a good start but inadequate. Surface water should be restored to the entire length of this vital waterway.

I would contend that maintaining flows is a good start but inadequate. Surface water should be restored to the entire length of this vital waterway.

Nice clear explanation. Thanks. It's all pretty complex and all most people seem to retain is that CBD sued Fort Huachuca.

Post new comment

The content of this field is kept private and will not be shown publicly.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Allowed HTML tags: <a> <em> <strong> <cite> <code> <p> <ul> <ol> <li> <dl> <dt> <dd> <blockquote>
  • Lines and paragraphs break automatically.

More information about formatting options

Type the characters you see in this picture. (verify using audio)
Type the characters you see in the picture above; if you can't read them, submit the form and a new image will be generated. Not case sensitive.