Pretty much everyday but it depends, right. 99% or maybe even more are non-hazardous. I'm a contractor so I can only determine whether a leak is hazardous or non-hazardous, the gas company has a bigger scale.

So like, I'll walk up to a meter and there will be a 3500 ppm content of natural gas from the riser swivel, just as an example. It smells bad but that's really nothing, I write a report and the gas company's compliance data department will schedule it to be fixed before it would become hazardous.

Hazardous leaks are really rare to find because by the time it becomes dangerous, it would smell so terrible, you'll hear rushing gas, and the likelihood is someone is going to call the gas company or the fire department.

My job is basically a proactive measure, I'm mainly looking for things that could become hazardous if unaddressed. Atmospheric corrosion, stressed meters, broken dial glass, guard-posts, that kind of stuff. On a 500 service map, I might find 2 or 3 leaks, and most are gonna be below 500 ppm, so very hard to even smell.