Water & electric cables at 220mm depth. - Deep enough for 80mm blocks?

[ADT]

I have an L shaped drive 9200 (wide frontage) x 5650 (depth to the side of the house) x 4100mm (depth in front of the window to pavement).

Whilst digging out to the depth of the sub-grade I only managed 220mm before reaching the water and electricity supply cables, it is a 1957 semi detached, so this is my depth. Is this deep enough to put down Marshalls Pallas 300x200x80mm blocks. The sub-grade is clay. Thanks in advance for any advice.

Having done some research on this site, the pipe I thought was water is yellow so it is Gas and Electricity cables. I will now ring them both and see what they propose to do...

[seanandruby]

not sure but i think the provider should lower the services and duct them as they are to high. The electric especially should be 450 deep and properly ducted and marker tape placed over it. i expect the water is lead if house that old. Best to be safe than the other one ......sorry :;):

[Bob_A]

My gas pipe is very shallow.
It went wrong and they mended it.
I tried to insist that they lowered it but they wouldn't. I quoted something from their own guidelines that it did not conform but they still wouldn't budge.
Best I got was a official written letter from a Southern Gas manager saying that the repair was up to standard.
The idea being that should I sell the house and the gas pipe was queried I could show them the letter.
Read all about it
http://ext.pavingexpert.com/cgi-bin....01;st=0