Water Leak?

I've just bought a 96 A4 1.8 SE Manual (2 weeks ago). It's done 96.5K miles and I have done 800 since i bought it without any problems.

However I have noticed that there is a lot of water coming from underneath the car coming from what appears to be 3 seperate points. The car leaks when the engine is switched off and doesn't seem to stop. There is about 1 drop every 10-15 seconds. It is about 3 feet in about as far back as the front wheels.

I know this water is not coming from the coolant system as the level is still at maximum.

I presume it is coming from the air conditioning system.

Is this normal???

Does anyone else have this problem??

Does anyone have any other ideas??