ORS § 545.349
Any irrigation district organized under the laws of Oregon may turn over to the federal government, or any federal agency, any lands owned or controlled by the district, for the purpose of development and colonization by the federal government or federal agency. The irrigation district may levy assessments for repayment to the federal government or federal agency of the sum expended in the development of the lands, with interest on the assessments not to exceed six percent per annum. The district may also assess the lands to cover repayment to the district of its cost, with interest on the assessments not to exceed six percent per annum. The district shall deposit the moneys collected as assessments in the "Bond Fund" account, or the "United States Contract Fund" account, or the "Bond and United States Contract Fund" account, as appropriate. The latter assessments shall be in addition to the assessments which may be levied to meet the reclamation charges, interest on the reclamation charges and maintenance. Irrigation districts may enter into contracts and assume obligations with the federal government or any federal agency, as may be necessary, expedient or desirable to bring about the development of lands in the irrigation district.
ORS 545.349