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Joined: Aug 2006
Posts: 356
Niko Offline OP
Can the gas line share the same trench with the electrical conduit? They are both branch circuits and are not on the service side.

I know it is not an NEC issue.

Thank you.

Last edited by Niko; 06/28/11 03:46 PM.

Be kind to your neighbor, he knows where you live

Joined: Apr 2002
Posts: 7,313
Likes: 7
Check locally IMHO.

Here in NJ it's not an issue as long as they are not 'side-by-side'.

You may have siesmic issues.

Joined: Jul 2004
Posts: 9,745
Likes: 13
I agree with John. Local policy will dictate this and it may actually be the utilities driving it.

Greg Fretwell
Joined: Jun 2004
Posts: 1,273
Pacific Gas & Electric does not permit it.

Underground natural gas delivery is by plastic.

No way will PG&E suffer compounding fires -- electric then gaseous.

Common trenches out my way are restricted to power, data, coax... with various horizons at least 12" apart -- sometimes more.

Fresh water, dark water, fire systems, and gas are not permitted in the common trench.

Customer side power is not permitted in the same horizon ( depth ) as utility lines. Utility power is always to be the deepest in the trench -- except if crossing.

Joined: Aug 2006
Posts: 356
Niko Offline OP
Thanks guys.

I have emailed the plumbing inspector for advice.

Be kind to your neighbor, he knows where you live

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