How long to dissipate chemicals in tap water for bait storage?

I'm in Sacramento and have set-up a sort of bait holding tank out of a plastic storage bin (16"H x 20"D x 24W) and an aquarium aerator.  Basically it is for left over minnows, bluegills, etc. that I have leftover from an outting which I would use the following day or two.  This won't be for long term storage.  What I am wondering is if I use tap water how long before the additives (chlorine, fluoride, etc.) evaporates out enough so that it won't kill or sicken the baitfish.  I am close to the American River so I have gone down there to get a supply of "wild" water, but it is kind of a hassle to bring back each time.  I don't have a filter to eliminate the waste by product so pretty much need to swap out the water for each new batch.  Thanks.

I would treat it like a normal aquarium. If you have a trip planned, fill it up 24-48 hours before your return time. The chlorine usually will dissipate by then, especially if you have the aerator running in that time frame.

yeah I think you just need the chlorine to "evaporate" so 24 hrs should do it

For keeping minnows alive before a trip, i've used bottled water and the .25c a gallon water at fillups outside of grocery stores, with no ill effects.  That said, i'm not sure it's legal to do what you are proposing...

Quagga snails, zebra mussels, Parasites, Ride along with the fish... Bait should be from the same water you are going to fish in especially if you are using pan fish. (DFG regulations on this aspect) Purchased Minnows I'm not sure about...

Ya, you might want to ixne the bluegill reference in your post....

Ya, you might want to ixne the bluegill reference in your post....

Yup, illegal to carry live fish from one location to another.

Thanks.  I can probably just leave it filled up with tap water and let it sit out until ready to use.  I didn't think about keeping the aerator on to speed the process. 

Yea, actually you can't transport overland even on the same body of water.  If you were to travel by boat with fish in the livewell even a long distance no real foul can be called.  Once you are on land there is no way to tell where they came from hence driving around to another spot on the same water with some gills could get you busted.  In general if you are trying to get a jump start on some early fishing nothing is worse than standing in line at the bait shop with all the other weekend warriors.  Buying them the day before and storing overnight eliminates one stop and gets you on the water before others.  I also like to pick up some bait, fish an evening, and have some leftovers ready for an early morning the next day, or even to save the lot when fishing sucked and hopefully get out in a midweek run.  Bait is expensive.  Appreciate the input.