running water and electric service below grade

as part of an interior remodeling project, i want to make it possible to feed electricity and water from the house, under a bluestone walkway, and terminate them behind the house for a future waterfall, or whatever. no specific project yet, so no need to turn the water and electric services on right away, but i want to be ready. (i imagine i will have to lift or break up a portion of the bluestone and repair later, since i doubt i can tunnel below it.)

i figured i could run a length of 2 inch schedule 40 through the house wall, and terminate it (somehow!) in the back yard - what is the best way to do that so i can add electric/water later? can i run both feeds through the same conduit? any ideas from somebody who has done this before? what is the best way to prevent the conduit from being a handy way for vermin from walking into the house?

 

Utilities go under walkways all the time. You can drive a sleeve underneath. As for the 2 inch put a plumbing cap on it to keep sealed and dirt out.

 

Run 2 conduits. You can't run water and electric in the same conduit.

 

Joed,
can't you use the 2" conduit soley as a chase then install a 3/4" conduit for the electricity, and a seperate 3/4" conduit for the water? This seems fine to me.

 

I might be ok. You are running them in separate conduits. I am not a code expert.