I'm not saying it can't be done, it's just that it's probably more cost & time effective to use a good water conditioner. I'm sure if you look hard enough, you will find someone who says boil for 2 minutes & it's good to go, another will state that boiling for 2 hours is the minimum. This is typical for aquatics.
I don't think some scientist or water company is going to compensate you for a tank full of floaters. Water companies are constantly adjusting the amount of chemicals added to compensate for seasonal fluctuations, as well as other localized weather events. They don't inform you of their daily activities, the most you can get is a yearly water report, which is for the most part yearly averages, with highs & lows. It's up to the lucky aquarist to try to figure out when & why they adjust their added chemicals.
I would rather err on the side of caution & use a good water conditioner. Besides taking care of chlorine & chloramine, they bind any metals that may be present weather they come from your plumbing, or the water supply itself. A 500ml bottle of Prime treats 5,000 gallons, and costs less than $10. Figure out your fuel cost for boiling that amount of water for whatever time you think is needed. Toss in the time involved boiling 5,000 one gallon pots, or 1,000 five gallon pots. I don't consider that effective, taking into account varying opinions on the effectiveness, time involved, and cost.