I am a beekeeper among other things, and my bee supply lady claims that honeybees are attracted to chlorinated water - she says the chlorine does for a bee what booze does for us...

Bees also need to have a certain amount of water to bring back to the hive, especially during dry weather.
I don't see the bees in the pool very often, but if I splash water out, or pull the Crud out of the skimmer basket, they will often come over and suck up some of the spillage off the deck...
What I would suggest, especially if you know where the hive is; (Likely since there are very few wild colonies these days) Provide an alternative water source, ideally much closer to the hive than your pool - I use the bottom tray that a large flowepot used to sit in. The idea is an inch or two deep and maybe about a foot around. Fill it with large rocks so that the bees can land on the rocks and crawl down to the water edge. It may also help to throw a small chunk of chlorine puck into the water.
If it is a wild colony, especially if it's someplace reasonably accessible, then you might try contacting some of your local beekeepers - many may be very interested in trying to catch and remove the colony to put in one of their own hives...
The other thing I would point out is that honeybees are relatively little cause for alarm. Unlike wasps or yellowjackets, the honeybee is very non-aggressive - it is HARD to get stung by a honeybee, as she will only sting to defend the hive, or as a last ditch self defense tactic (i.e. you are stepping on her) The reason is that if a honeybee stings, it dies, so it will only sting if it "has to" - This is different from a wasp or yellowjacket that can sting as many times as it wants to, and thus tends more towards the Dirty Harry "Go ahead, MAKE my day" attitude...
Off topic, but a couple shots of my girls - (not sexist, a healthy hive will be 95+% sterile females, one queen, and a few mostly useless male drones)
[attachment=1:19z5dqtc]hives-1_6-09.JPG[/attachment:19z5dqtc]
The hive on the left is a well established hive that wintered over well, and is working on it's third super of honey. The hive on the right is one that I had to restart this spring from a package, and has just finished drawing out it's two brood chambers (the taller boxes on the bottom of the stack) and is now working on it's first honey super. You can see my alternative water supply on the stand between the hives, it's that green tray. The yellow thing hanging down is a wasp trap, intended to discourage the wasps that might otherwise prey on the bees in the hive.
[attachment=0:19z5dqtc]closeup-1.JPG[/attachment:19z5dqtc]
This is a shot of some of the coming and going at the hive entrance - taken from about a foot from the hive, while wearing NO protective gear (As I said, honeybees are non-agressive, you don't bother them, they won't bother you...) The one returning to the hive with the big yellow blobs on her legs has been out foraging, the blobs are pollen that she collected while on the flowers. Seeing a reasonable number of bees carrying pollen back to the hive tells me that the hive is healthy and raising lots of baby bees, as the primary use of pollen is to feed the brood, and the bees don't bring it back if there are no babies to feed.
Gooserider