Also when it evaporates instead of going to the sewer that drops the price in half.
Edit: Oops I got that mixed up and was treating it like a per-faucet cost. So actually it's one household income of water for the entire facility.
Do you think people look at big facilities and calculate that they're spending whatever times the medium wage on a crucial service and get mad about it?
Converting things into median wages is a way to put them into scale. They spent this many wages for construction, they spend this many on supplies, they sell this many in product, they hire this many people to work there. If anyone thinks its bad for anything a company buys to exceed a median wage, that's a very silly expectation and I wonder where they got it.