85-2-436. Instream flow to protect, maintain, or enhance streamflows to benefit fishery resource -- change in appropriation rights. (1) The department of fish, wildlife, and parks may change an appropriation right, which it either holds in fee simple or leases, to an instream flow purpose of use and a defined place of use to protect, maintain, or enhance streamflows to benefit the fishery resource.

(2) The change in purpose of use or place of use must meet all of the criteria and process outlined in 85-2-307 through 85-2-309, 85-2-401, and 85-2-402 and the additional criteria and process described in subsection (3) of this section to protect the rights of other appropriators from adverse impacts.

(3) (a) The department of fish, wildlife, and parks, with the consent of the commission, may lease existing rights for the purpose of protecting, maintaining, or enhancing streamflows to benefit the fishery resource.

(b) The department may not approve a change in appropriation right until all objections are resolved.

(c) The application for a change in appropriation right authorization must include specific information on the length and location of the stream reach in which the streamflow is to be protected, maintained, or enhanced and must provide a detailed streamflow measuring plan that describes the points where and the manner in which the streamflow must be measured.

(d) The maximum quantity of water that may be changed to instream flow is the amount historically diverted. However, only the amount historically consumed, or a smaller amount if specified by the department in the change in appropriation right authorization, may be used to protect, maintain, or enhance streamflows below the point of diversion that existed prior to the change in appropriation right.

(e) A lease for instream flow purposes may be entered for a term of up to 10 years, except that a lease of water made available from the development of a water conservation or storage project may be for a term equal to the expected life of the project but not more than 30 years. All leases may be renewed an indefinite number of times but not for more than 10 years for each term. Upon receiving notice of a lease renewal, the department shall notify other appropriators potentially affected by the lease and shall allow 90 days for submission of new evidence of adverse effects to other water rights. A change in appropriation right authorization is not required for a renewal unless an appropriator other than an appropriator described in subsection (3)(i) submits evidence of adverse effects to the appropriator's rights that has not been considered previously. If new evidence is submitted, a change in appropriation right authorization must be obtained according to the requirements of 85-2-402.

(f) The department may modify or revoke the change in appropriation right authorization up to 10 years after it is approved if an appropriator other than an appropriator described in subsection (3)(i) submits new evidence not available at the time the change in appropriation right was approved that proves by a preponderance of evidence that the appropriator's water right is adversely affected.

(g) The priority of appropriation for a lease or change in appropriation right under this section is the same as the priority of appropriation of the right that is changed to an instream flow purpose.

(h) Neither a change in appropriation right nor any other authorization is required for the reversion of a leased appropriation right to the lessor's previous use.

(i) A person issued a water use permit with a priority of appropriation after the date of filing of an application for a change in appropriation right authorization under this section may not object to the exercise of the changed water right according to its terms or to the reversion of a leased appropriation right to the lessor according to the lessor's previous use.

(j) The department of fish, wildlife, and parks shall pay all costs associated with installing devices or providing personnel to measure streamflows according to the measuring plan required under this section.

(4) (a) The department of fish, wildlife, and parks shall complete and submit to the department, commission, and water policy interim committee a biennial progress report in accordance with 5-11-210. This report must include a summary of all appropriation rights changed to an instream flow purpose in the last 2 years.

(b) For each change in appropriation right to an instream flow purpose, the report must include a copy of the change authorization issued by the department and must address:

(i) the length of the stream reach and how it is determined;

(ii) critical streamflow or volume needed to protect, maintain, or enhance streamflow to benefit the fishery resource;

(iii) the amount of water available for instream flow as a result of the change in appropriation right;

(iv) contractual parameters, conditions, and other steps taken to ensure that each change in appropriation right does not harm other appropriators, particularly if the stream is one that experiences natural dewatering; and

(v) methods used to monitor use of water under each change in appropriation right.

(5) This section does not create the right for a person to bring suit to compel the renewal of a lease that has expired.

(6) (a) From May 8, 2007, through June 30, 2029, the department of fish, wildlife, and parks may change, pursuant to this section, the appropriation rights that it holds in fee simple to instream flow purposes on no more than 12 stream reaches.

(b) After June 30, 2029, the department of fish, wildlife, and parks may not change the appropriation rights that it holds in fee simple to instream flow purposes on any stream reaches.

(7) After June 30, 2029, the department of fish, wildlife, and parks may not enter into any new lease agreements pursuant to this section or renew any leases that will expire after that date.