Owyhee Reservoir irrigators finally get full allotment
ONTARIO, Ore. — A full water allotment for the fist time in four years has made a huge difference for farmers in Oregon and Idaho who depend on the Owyhee Reservoir to irrigate their crops.
They received only a third of their full 4 acre-foot allotment in 2014 and 2015 and as a result drastically altered their crop rotations and left a lot of ground fallow to save what water they did receive for their onions, the area’s main cash crop.
The reservoir provides irrigation water for 1,800 farms and 118,000 acres of ground in Eastern Oregon and part of southwestern Idaho.
“It meant a lot to have a full allotment this year,” said Owyhee Irrigation District Manager Jay Chamberlin. “It was good to see growers get back to more normal planting.”
During the drought years, when water was sparse, a lot of farmers moved their onion acres to areas where they had access to well water or where water held out a little bit longer in the system, said Bill Buhrig, an Oregon State University cropping systems extension agent in Ontario.
In areas where water was scarce, a lot of early season crops such as cereal, wheat or triticale were planted.
As a result, Buhrig said, a lot of onions and cereals were planted on the same ground several years in a row and farmers got out of their normal five- to six-year rotations, which is not ideal for soil health.
“To go to a full allotment enables growers to get back into the rotations that really benefit both what their production needs are and soil health,” he said.
As a result of the drought, acreage for some water-intensive crops, such as sugar beets, was cut significantly. After falling to 4,725 acres in 2014 and 5,500 acres in 2015, sugar beet acres in the area bounced back to 8,000 this year, which is close to normal.
The ground left fallow the past few years has also been put back into production, said Stuart Reitz, an OSU cropping systems extension agent.
The full allotment “gives people more flexibility on what they can grow and where they can grow,” he said. “Having those short water years threw everybody’s rotations off.”
Dairyman Frank Ausman likes to grow most of his own feed but had to leave one of his three farms idle the past two years to spread what little water he did get to the other two.
He was able to put all three into production this year.
“It’s made a huge difference,” he said. “We have basically got back to normal.”
When the OID system stopped delivering water Sept. 30, there was 166,000 acre-feet of carryover water in the reservoir, less than normal but much more than the 5,000 acre-feet left the past two years.
“From the get-go, when we set the allotment, our goal was to try to carry over 100,000 acre-feet and we actually did better than that,” Chamberlin said. “We’re pretty pleased we were able to carry over that much.”
