IA HF2391

Establishes annual water usage reporting requirements for "large water use facilities" that use or can use 25,000 gallons or more per day

Applies to three types of facilities: data processing centers (NAICS code 518210), ethyl alcohol manufacturing plants (NAICS code 325193), and cryptocurrency mining operations

Requires covered facilities to submit detailed water use reports to the Department of Natural Resources by March 31 of each year covering the previous year's consumption

Defines cryptocurrency mining as the process where computers validate blockchain transactions and receive mining rewards for computational effort