She picks out a spot near the metal mine and builds an umbrella factory. And Henrietta's neighbor Hawthorn realizes that she will need trucks to transport her finished umbrellas to the hardware store, so he builds an assembly plant to build trucks. It takes a lot of water to build umbrellas, and even more to build trucks, and the new industries become one of Dryville's largest water users. Like the mines, the waste water from factories may not be very clean, so the factories build their own water-treatment plants to keep from polluting the rest of Dryville. Dryville is growing faster than the artichokes.
Every new building needs electricity to keep it going.
Fine then, you'll build a power plant to supply electricity. These plants burn fuel to create heat that generates steam from water to turn turbines to generate electricity. Most of the water is used to cool the power-generating equipment. They use so much water that they usually are built next to a large water body. They use a system that gets water to flow into the powerplant, cool the equipment, and then flow back out.