Create a limited and predictable water-quantity review framework for High Impact Data Centers (HIDCs) in West Virginia.

HB 5590 requires certified high impact data centers (HIDCs) in West Virginia to disclose anticipated water usage before construction and submit projected withdrawal volumes to the Department of Environmental Protection (DEP). The bill limits DEP review to water quantity only, denying approval only if withdrawals would reduce water supply below levels needed to meet existing lawful demands (e.g., public water systems, agriculture, or other users) during droughts. HIDCs must also report actual annual water usage, comparing it to projections, and may use existing reports to satisfy this requirement. The bill explicitly states it does not create new permitting, expand water quality regulations, or apply to power plants or microgrids.