; . B Allocations for Sacramento Valley Contractors 521. Definitions. In this subtitle, the following definitions apply: (1) The term existing CVP agricultural water service or repayment contractor within the Sacramento River Watershed means any water service or repayment contractor within the Shasta, Trinity, or Sacramento River division of the CVP that has in effect a water service or repayment contract on the date of enactment of this title that provides water for irrigation. (2) The terms Above Normal , Below Normal , Dry , and Wet , with respect to a year, have the meanings given those terms in the Sacramento Valley Water Year Type (40–30–30) Index. 522. Allocations of water. Subject to section 523, the Secretary of the Interior shall make every reasonable effort in the operation of the CVP to allocate water provided for irrigation purposes to each existing CVP agricultural water service contractor within the Sacramento River Watershed in accordance with the following: (1) Not less than 100 percent of the contract quantity of the existing CVP agricultural water service contractor within the Sacramento River Watershed in a Wet year. (2) Not less than 100 percent of the contract quantity of the existing CVP agricultural water service contractor within the Sacramento River Watershed in an Above Normal year. (3) Not less than 100 percent of the contract quantity of the existing CVP agricultural water service contractor within the Sacramento River Watershed in a Below Normal year that is preceded by an Above Normal or Wet year. (4) Not less than 50 percent of the contract quantity of the existing CVP agricultural water service contractor within the Sacramento River Watershed in a Dry year that is preceded by a Below Normal, Above Normal, or Wet year. (5) In any other year not identified in paragraphs (1) through (4), not less than twice the allocation percentage to south-of-Delta CVP agricultural water service contractors, up to 100 percent. 523. Protection of refuge, municipal and industrial, and other