California Code, Water Code - WAT § 1725.5

(a) “Consumptively used” means the amount of water that has been consumed through use by evapotranspiration, has percolated underground, or has been otherwise removed from use in the downstream water supply as a result of direct diversion.

(b) “Temporary change” means a change involving a transfer of water or water rights for a period of one year or less.  The one-year period does not include any time required for monitoring, reporting, or mitigation before or after the temporary change is carried out.  If, within a period of one year or less, the water involved in the temporary change is moved to offstream storage outside of the watershed where the water originated, the change shall be considered a temporary change, and the water moved to offstream storage outside the watershed where the water originated may be put to beneficial use in the place of use and for the purposes of use specified in the board's order approving the temporary change either during or after that period.

(c) “Transfer” includes an exchange of water or water rights.