Ideally, the SW would be importing bottled water, not exporting water, because it's not something they have in abundance. If there are large commercial operations exporting water, they should be the first to be cut off from these operations. That seems very unlikely it would be permitted though.
Personally, I've never wanted to live in this area (or at least make a large investment in a home/property) due to the scarcity of water coupled with growth. Nothing against the region, just seems like an unecessarily impractical region to live due to environmental factors and the climate models I've seen, at least for my comfort levels.
It takes ~3 units of water to bottle 1 unit.
To say nothing of the carbon impact with packaging, shipping, disposal.
To say nothing of the pollution with microplastics and estrogenics.
Ad nauseum.
We have a lot of limestone here, so our water is pretty good but has significant mineral content. Without a water softener my faucets would be ruined within years, caked full of minerals.