Levy Mandatory Taxes on Water Use

Tax the water usage with no exemptions, and increase the daily rate during droughts. Require that money be funneled into either water conservation projects or local infrastructure.

Weak example

Corpus Christi, Texas, taxes water usage, but only in droughts with opt-out provisions for large-volume industrial customers. This would allow data centers to opt out of drought surcharge fees and undermine the mitigation tactic.