Floor leak and electrical shorts !!

[CLAREK]

Audi A2 sport TDI 53 -plate

Ok, having problems with warning light on the dash, initially thought it was faulty sensors but on closer inspection I found the footwells on both sides of the car to be sopping wet. I removed both the panel covers under the matting and the drivers side had a couple of mills of water in it and the passenger side containing what looks like an electrical junction box also had water in it. The water has a slightly soapy feel to it to the obvious culprit is the washer reservoir but it still seems to have water in it. Can anyone tell me where this moisture is coming from and if my car is safe to drive until it is rectified?