The Oregon Water Resources Department (OWRD) recently issued proposed rules to establish a critical groundwater area in the Harney Basin that would ultimately allow the agency to limit pumping to achieve stable groundwater levels.
The Harney Basin supports redband trout and a groundwater-dependent lake home to an endemic crawfish, and includes the world famous Malheur National Wildlife Refuge — a vital resting, breeding, and nesting area for hundreds of thousands of migratory birds and wildlife along the Pacific Flyway.
Unfortunately, the basin continues to experience significant groundwater declines due to groundwater pumping, primarily for irrigation to grow alfalfa, with the volume of water removed from the ground far outpacing the amount of available water to replenish underground reserves, known as recharge.
Since 1980, groundwater pumping has reduced the amount of groundwater-supported springs and streams in the Harney Basin lowlands by more than 40 percent. There's also been a significant decrease in groundwater-supported native vegetation in the Harney Basin, meaning native vegetation that wildlife and some domestic animals rely upon is drying up due to groundwater pumping.
If enacted, the proposed OWRD rules set the stage for stabilizing groundwater levels within the Harney Basin by 2058. While stabilizing groundwater levels would require adjustments for many irrigators in the basin, we are encouraged this approach will provide the basin with a more sustainable future.
PLEASE ACT NOW! Comments are due by 5 p.m. on Wednesday, Aug. 13th.