Finally, you will more often see situations where a city owned utility supports the general fund than one where the tax base supports the city owned utility. Why? Because it's almost always easier for the city government to raise the price of the utility service than for them to raise taxes--so budget shortfalls on either side often get plugged by utility rate increases.
Perfectly said. -- Guaranteed Fear and Loathing. Abandon all hope. Prepare for the Weirdness. Get familiar with Cannibalism.