I *think* that it's free, but to be sure, give APS or Southwest Gas a call. I'm sure that they can provide you with that info. I imagine that they'd rather provide the service than risk someone blowing up the neighborhood.
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"No laws, no matter how rigidly enforced, can protect a person from their own stupidity." -Me-
"Some people are like Slinkies..... They are not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs." -Unknown-
DAMMIT! -Jack Bauer-
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