A. The irrigation water duty shall be used to determine the maximum amount of groundwater which may be used pursuant to section 45-465, subsection B and debits and credits to the flexibility account as set forth in section 45-467. Except as provided in subsection B of this section, the irrigation water duty shall not be applied to diminish surface water delivered to lands pursuant to appropriative surface water rights or decreed surface water rights.
B. In the Santa Cruz active management area, the irrigation water duty shall be used to determine the maximum amount of water, other than stored water, withdrawn from a well which may be used to irrigate the irrigation acres in a farm.