Sierra Fire and Forge, in Exeter CA uses metalurgical grade *coke*. I think that's what you're asking for. I've used it at this year's Spring Conference, and it's very low-smoke, low fume (unlike regular coal). Hard to light, but once it's going it's like regular coal. Unless you have a very big lot in Glendale, I'm sure you're neighbors and the AQMD will appreciate your using coke (or a propane forge).
Sierra Fire and Forge hosted the recent CBA Spring Conference. They were a very hospitable group--I'd bet you could give them a call and ask who their supplier is.
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BTW, if you haven't been to a CBA event, you're missing out. It's a great group of people, and the events are lot of fun!