Each drought response stage will be triggered by specific conditions related to the availability of Colorado River water as determined by the tier elevations of Lake Mead pursuant to the Lower Basin Drought Contingency Plan adopted between the United States and non-federal parties:
(a) Drought Response Stage 1/Drought Contingency Plan Tier 0 trigger: When the United States Bureau of Reclamation projects that the water level in Lake Mead on January 1 of any calendar year will be between 1090' and 1075' above sea level.
(b) Drought Response Stage 2/Drought Contingency Plan Tier 1 trigger: When the United States Bureau of Reclamation projects that the water level in Lake Mead on January 1 of any calendar year will be below 1075' above sea level.
(c) Drought Response Stage 3/Drought Contingency Plan Tier 2 trigger: When the United States Bureau of Reclamation projects that the water level in Lake Mead on January 1 of any calendar year will be below 1045' above sea level.
(d) Drought Response Stage 4/Drought Contingency Plan Tier 3 trigger: When the United States Bureau of Reclamation projects that the water level in Lake Mead on January 1 of any calendar year will be below 1025' above sea level or the volume of water delivered by the Central Arizona Project to Tucson Water is less than annual potable demand.
(Ord. No. 10380, § 1, 3-20-07; Ord. No. 11794, § 1, 10-20-20)