low voltage cable and gas line

I have a large PVC chase in a customers basement to get from 1 unfinished end to the other unfinished end. A plumber has used this to run a flexible gas line through the basement. I now need to get a CATV line across the basement. Dug through the code and couldnt really find anything, assumed there wouldnt be anything in there for such a specific issue. Would there be any problem with adding a CATV to this conduit with the gas line?
 
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