Water under floor!

S8NDS

Hi,

I bought a property last year. I was recently decorating and stripped the carpets back only to notice water under the floorboards. These were stripped back and I found a foot and a half of water under the boards. The water company were called out they denied a burst water pipe. There was also no blockage in the drains immediately around my home. It has now been bought to my attention that the 100 yr old terraced houses on my street have all been built on a stream. One of my neighbours told me this and apparently they have all had similar problems. So this means that the water entering my property is perhaps a mixture of surface water and the stream below?

My question is...should the water searches when the house was initally purchased highlighted that there was once a stream below my property - or highlighted that my home was at risk of flooding due to there once being a stream there.

The drain at the bottom of the street also seems to be blocked and the neighbours have stated that it overflows when raining. I am going to get a petition together to get Severn Trent to take a look at this drain and see if it is blocked.....this might help my problem.

Can anyone else provide advice please?

thanks