Minute 319 [1] determines how water allocations will change during conditions of drought or surplus. This is also covered a little at the end of the Wikipedia a

Minute 319 [1] determines how water allocations will change during conditions of drought or surplus. This is also covered a little at the end of the Wikipedia article. In a max drought scenario (Lake Mead surface elevation <1,025 feet) it looks like delivery requirements would be reduced by 125,000 acre-feet, with different delivery thresholds above that range. 1. https://www.ibwc.gov/Files/Minutes/Min319_Env_Fact_Sheet.pdf https://www.ibwc.gov/Files/Minutes/Min319_Env_Fact_Sheet.pdf