The U.S. Nears the Limits of Its Water Supplies

By Shiney Varghese, Institute for Agriculture and Trade Policy. Posted April 8, 2008.

I am amazed: since last summer, almost every day we see at least one news story on another water crisis in the U.S. The water crisis is no longer something that we know about as affecting developing countries or their poor in particular. It is right here in our own backyard. Today, in many parts of the U.S. we are nearing the limits of our water supplies. And that is getting our attention. The writing has been on the wall for some time. The private sector has been showing much interest in water as a source of profit, and water privatization has been an issue in many parts of the country.

The failure in public water systems has indeed been a contributing factor for this interest. In many cities, consumers have been organizing and opposing the privatization of water utilities, because they have been concerned about affordability or deterioration in the quality of service. Environmental organizations and consumer activists have also been concerned about the socio-economic, health and environmental implications of ever increasing bottled water use. But for most of us living in the U.S., water is something we take for granted, available when you turn your tap on -- to brush your teeth, to take a shower, to wash your car, to water your lawn, and if you have your own swimming pool then, to fill that as well.

So it was with alarm that many of us read the story of Orme, a small town tucked away in the mountains of southern Tennessee that has become a recent symbol of the drought in the southeast. Orme has had to literally ration its water use, by collecting water for a few hours every day -- an everyday experience in most developing countries, but unusual for the U.S. This is an extreme experience from the southeast region that has been under a year long dry spell. In fact, the region's dry spell resulted in the city of Atlanta setting severe water use restrictions and three states, Georgia, Florida and Alabama, going to court over a water allocation dispute (settled in favor of Florida and Alabama early last month).

Early this year we also heard that drought in the region could force nuclear reactor shut-downs. Nuclear reactors need billions of gallons of cooling water daily to operate, and in many of the lakes and rivers water levels are getting close to the limit set by the Nuclear Regulatory Commission. It is possible in the coming months that we may see water levels decrease below the intake pipes, or that shallow water could become warmer and unusable as a coolant. While this may not cause blackouts, this can result in increased costs for energy as utilities have to buy from other sources.

Water concerns are not restricted to the southeast region -- similar issues have also been popping up in other parts of the United States. In the Midwest, concerns abound as to whether the newly emerging biofuel industry is putting undue pressure on the region's groundwater resources. The issue came into focus for the first time in the late summer of 2006 in Granite Falls, MN where an ethanol plant in its first year of operation depleted the groundwater so much that it had to begin pumping water from the Minnesota River.

In early February, it was reported that there is a 50 percent chance Lake Mead (on the Arizona/Nevada border), will be dry by 2021 if climate change continues as expected and future water use is not limited. Along with Lake Powell in Utah, Lake Mead helps provide water for more than 25 million people, and is a key source of water in the southwestern U.S. On the west coast, where water is a precious resource, water disputes abound: between farmers who want water for agriculture, environmentalists who want to conserve water for ecosystems, and cities who want to meet ever-growing urban water needs. Last summer, in a landmark decision, a federal judge ordered state and federal water project managers to reduce the amount of water pumped from the Sacramento-San Joaquin River Delta to protect the threatened delta smelt from extinction. Along with excessive rains in other regions and increased incidence of hurricanes in the Gulf Coast, these changes are a constant reminder of an increasingly evident reality: climate change.

In fact, in early February, Nature reported that, "In the western US, where water is perhaps the most precious natural resource, anthropogenic global warming is responsible for more than half of the well-documented changes to the hydrological cycle from 1950 to 1999. Over the last half of the twentieth century, the region's mountains received less winter snow and more rain, with snow melting earlier, causing rivers to flow more strongly in the spring and more weakly in the summer."

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Shiney Varghese is a Senior Policy Analyst at the Institute for Agriculture and Trade Policy.

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