Relating to water transfers.

SB 427 prohibits water rights changes that would reduce streamflow, directly affecting water right holders seeking to modify their permits. The bill amends Oregon water law to require that any proposed transfer, change in diversion point, or use of water on noncontiguous land must not diminish streamflow or harm existing water rights. Key provisions include new requirements for applications involving out-of-basin water transfers, mandating analysis of impacts on streamflow, basin water availability, and return flows. This policy change applies to all water right modifications under Oregon Revised Statutes 537.211 and 537.803, ensuring transfers do not negatively impact river ecosystems or downstream users.