We bought an edwardian semi about 18 months ago and after moving in discovered we have a stream running under the property from the back left corner and out through the front right under the porch. In normal weather this has not really been an issue but following the torrents of rain we have had it is now pooling at the front and coming up through the drive. It has obviously done this in the past before we bought it as you can see the indentation its caused on the drive. This was never picked up on the survey which was a full one which we had done. We have written to the surveyors who are now coming out to reinspect but does anyone know where we would stand on this so I can be prepared what to expect etc ???