Drilling Increasingly Runs on H20
BY NICHOLAS KUSNETZ
The first thing you notice in North Dakota’s oil patch are trucks. They dominate a landscape defined not long ago by cattle and wheat, and not long before that by bison and grass. Trucks groan through Watford City all night. They pile up traffic on highways designed for the occasional car or combine and whip dirt roads into dust storms that locals mistake for prairie fires. They’re the first thing anyone mentions when you ask what has happened here in western North Dakota.
Thanks to the Bakken shale, the state has become the country’s second-biggest oil-producer practically overnight. And while the world still runs on oil, with the rise of hydraulic fracturing, or fracking, oil increasingly runs on water. Drillers inject 1 million to 3.5 million gallons of pressurized water into each well to shatter the rock and free the oil. More of the trucks you see are carrying water than anything else, some 400 to 800 truckloads per well.
In the low, early-morning light one fall day, the trucks are already lined up eight deep at a water depot outside Watford City. In the time it takes to smoke a cigarette, one trucker from Minnesota pumps 4,200 gallons from the ground into his chrome tanker. The job is good enough that, after two years of living away from home, he says his wife will soon be joining him here.
The water business is good for locals, too. Several dozen farmers and ranchers with access to water and $150,000 to spend have built water depots like this one — trailer-sized aluminum pump-sheds with eight-inch pipes sticking out of the sides. These private water sellers pulled in $25 million to $30 million last year, according to Steve Mortenson, who heads the Independent Water Providers, a group that represents the industry in the state capital. Several local towns have built depots to sell excess municipal water, pulling in another $10 million or so last year, Mortenson estimates, a substantial sum given their average population of a few thousand people.
The sales are raising uncomfortable questions in a region where fewer than 15 inches of rain falls each year. In many places, the nearest water is 1,000 feet down in a large aquifer that flows freely to the surface in low-lying areas. But it recharges slowly, and the level at which it flows without pumping is dropping more than a foot per year from overuse. Meanwhile, most of the fracking water comes from a series of smaller, shallower aquifers, some of which are already stretched to meet drinking and irrigation needs. The Missouri River has begun to provide some relief, though federal agencies are already tussling over the possible negative effects of withdrawals. To make matters worse, the fracking water ends up contaminated and must be injected thousands of feet underground, removing it from the hydrologic cycle.
There’s plenty to supply the oil companies for now, says Bob Shaver, director of the water appropriations division for the Water Commission, which monitors the state’s aquifers and regulates all surface and groundwater withdrawals. The best estimate for oil-field use is about 3 billion gallons, based on last year’s activity, with demand projected to double over the next decade. But it’s only a matter of time before the state’s water is fully appropriated, he says, and any new use will have noticeable effects. That day is nearing as the oil rush drives population growth in rural areas with little infrastructure, further straining water supplies. McKenzie County, in the heart of the boom, has grown 20 percent in two years.
Each new depot draws more opposition from neighbors and other interests, Shaver says, highlighting the resource’s increasing value — and scarcity. “To me, water is going to be the oil of the 21st century.”
Nationwide, energy companies have been using more and more water for hydraulic fracturing over the past decade, spurring worries about impacts, from the arid West, where many rivers are fully appropriated, to relatively water-wealthy Pennsylvania. The EPA estimates that fracking uses between 70 billion and 140 billion gallons of water total each year. That’s small compared to irrigation, which uses about 128 billion gallons every day. But much of the irrigation water runs into the ground or streams, and a lot of the rest evaporates to rain down elsewhere. In contrast, water used for oil and gas is usually disposed of or otherwise removed from the system. Even relatively small withdrawals can have local impacts.
“Will oil and gas use limit other uses?” asks Reagan Waskom, director of Colorado State University’s Colorado Water Institute. In dry years such as this, he says, the answer is sometimes yes. So far, it’s seldom happened. But Colorado officials project the industry’s water consumption for fracking will grow 20 percent over the next three years, to more than 6 billion gallons per year.
Meanwhile, during last year’s drought in Texas, drilling hardly slowed even as farmers and ranchers lost crops and cattle, and towns restricted water use. Regulators predict the annual fracking-water use there will triple over the next decade to 39 billion gallons. Environmental groups in the state have begun pushing the Legislature to enact conservation requirements for drillers and other industries.
While North Dakota has produced oil since the ’50s, this boom’s water use is unprecedented and cuts to an ongoing concern. Delegates writing the State Constitution in 1889 enshrined water as a public resource, held in trust by the state. But anyone with physical access to an aquifer or surface water can apply to the Water Commission for a withdrawal permit. (You don’t need a permit for most domestic or livestock use.) Other than a few hundred dollars in fees, the water is free.
Between 1980 and 2007, when the current oil boom started, the state issued just 10 permits for water depots. It’s awarded at least six times as many since then. The process isn’t onerous so long as the new use won’t “unduly” affect existing permits, which have priority. The commission has even urged farmers to temporarily convert irrigation permits to help drillers; nearly two dozen have done so. For the most part, oil companies here have not begun reusing wastewater, nor have regulators pushed them to. With the Missouri River bisecting the oil fields, the prevailing view is that nothing, least of all water, should slow drilling. That some individuals have reaped millions selling this water is simply a bonus.
Few have done as well as Mike Ames, who says he’s had a hand in about two-thirds of the 70-plus depots. Ames, a burly man with a broad nose, grew up across the border in Montana and began selling irrigation equipment in Williston, northwest North Dakota’s largest town, in the 1980s. Seven years ago, Ames opened his first depot, selling water for 35 cents a barrel — equal to 42 gallons — to farmers for mixing with pesticides. Then came oil. “I was in the right place at the right time,” he says. Today, he charges 60 cents a barrel. He’s also hired 20 people in the past year to look after the dozen depots he runs — he owns three and operates the rest for other farmers.
He says he and the other water providers are helping wean the country off imported oil; thanks in part to the Bakken, U.S. oil production is rising consistently for the first time in over 25 years.
But private sellers face growing competition. Oil and oil-field services companies are applying for their own permits as they settle into the state. One Texas-based company, Select Energy, acquired permits to draw nearly 6 billion gallons annually from Lake Sakakawea, a giant reservoir on the Missouri.
The other new competitor is public. Because quality drinking water is scarce in western North Dakota, the state has worked for decades to build pipelines to deliver river water to residents. A system in the southwest, begun in 1977, still isn’t complete; projects in the northwest have not materialized. Pushed to the limits of their existing water supplies by oil-driven population growth, the area’s towns recently established the Western Area Water Supply Authority to build their own project. To lower the construction time to just a few years, they’re borrowing $110 million from the state — and plan to ask for another $40 million — to be paid back by selling water to oil companies. They already have four depots running, with plans for eight more.
From the air, the need for water-supply projects is clear. Amid the prairie hills, new developments sprawl everywhere: water depots and drilling rigs like playing pieces in an elaborate game, a yard full of drill pipe here, a field full of campers there, new motels.
In Watford City, the largest town in McKenzie County, the population leapt from 1,744 in 2010 to an estimated 6,500 today, and city officials are planning for 15,000 over the next decade. Just behind Water Supply Authority Executive Director Jaret Wirtz’s office, a local trucking company has cut several acres out of the surrounding prairie to build housing for 1,000 people. “Everybody wants to do 500 homes here, 300 homes there,” Wirtz says. “Well, those all take water.”
The drillers may soon be able to get more water from Lake Sakakawea, relieving some stress on groundwater. The Army Corps of Engineers opened the lake to oil-field use this spring after determining there would be little environmental effect, though it could be a year before planned projects are complete. In written comments, the Environmental Protection Agency said the Corps presented limited evidence to support its conclusion, failed to examine the impacts of withdrawals on downstream areas and as a result, “may not fully recognize potential direct, indirect, or cumulative impacts.”
The Missouri River — the country’s longest — supplies drinking water to 3 million people, irrigates 550,000 acres and cools 25 power plants. The utilities want more water released from dams for increased power production.
Downstream states want more for barge traffic. Meanwhile, back in the oil fields, one utility has begun building two 45-megawatt natural gas plants that will require up to 75 gallons per minute. Fargo, North Dakota’s biggest city, is still pushing for completion of a Sisyphean engineering feat begun in the 1950s to reroute water from the Missouri across the state to supplement its water supply. “Eventually, that river is going to get tied up,” Wirtz says.
Lee and LaShell Tjelde live near the Montana border, where the land begins to undulate, exposing bare hillsides of striped earth. Lee is tall and strong, with a red face and wire-rimmed glasses. His family has ranched here for three generations.
On a drive through the couple’s pastures, he points out stock dams nearly dry in mid-May. When they run out, Tjelde pumps groundwater for his cattle. He holds one permit to irrigate from the same groundwater, and he applied for a second nearly two years ago. Such requests once took months to process, but since drilling began, the Water Commission has been overwhelmed. The aquifer here is among those showing signs of stress, and hydrologist Alan Wanek says he will be cautious about issuing new permits. Even as the Tjeldes and several neighbors wait, five other neighbors have temporarily converted existing irrigation permits to sell to the drillers. “To my eyes,” Tjelde says, “that’s just not right.”
Water is already hard to find. When the Tjeldes built their home, they drilled fruitlessly and eventually resorted to a “water witch,” who divined a narrow seam of water in the ground. The well only pumps about four gallons per minute, and it’s too salty for the garden. So LaShell collects rainwater in two 500-gallon barrels, one of which is nearly empty. Some neighbors must haul water from town. “If these aquifers are dried up through industrial use, what’s left for us?” Lee says. “This is our life out here.”
—High Country News