From Ag Pipe to Gas Pipe

[ArashM]

Hi All,

I've been digging next to the retaining wall/fence from my front lawn all the way to my back fence. I'm planning to drain all the front lawn surface water (my house was built below council level - dumb builders 😞) by putting in an ag pipe. Back of the property is a stormwater drain, I'll connect the ag pipe to it.

Anyways, was digging in the front lawn along the fence to depth of around 40cm and hit the gas pipe. 

Yes, I contacted dial before you dig. the plan showed gas pipe supposed to be 2m from the fence. Reality, it was more like 30cm from the fence.

Luckily, I saw the warning tapes in the ground, so was progressing cautiously. However, I didn't expect the pipe to be so close to surface (30cm to surface). I took out small layer of pipe's surface plastic, test it with soap water no leakage. There's also a tiny white wire next to it, no clue what that is. I was quite surprised that they haven't encased the pipe into something sturdy.

Anyways, back to the main issue. Can I put my ag pipe on top of the gas pipe.

If not, what are my options 

Please advise 

Thank you