I spent three years as a firefighter in your area, and I can't recall any code regarding outdoor distances. I don't think there was even a minimum distance for outdoor burn piles. Dichro is right though, call the local FD and confirm it.
I know, for apartments in my area, the rule for BBQ's is 10ft from a structure. As far as a house and a fire pit, I have no clue. Back in Texas I worked for the local FD, there were no guidelines and I don't think the question ever came up. Sorry I couldn't be of more help.
There is not a state law. I got into a battle on BBQs and such with a former landlord. The Cities of Beaverton and Hillsboro have all now adopted international standards that do require BBQs to be 10 feet from living structures and doorways. Some other towns may have adopted these IFCI codes that I'm not yet aware of. I know Portland was talking about it as well.
Really. Hmm. I live in Marcola. I guess I'll have to ask the fire chief up the road. I want to build a nice looking brick or stone one and I don't want to do all the work only to get a fat fine. Do you know if Springtucky has the same law?
A lot of people here use barrels for burning their garbage or they have a big fire for burning yard debris. We've been here for three and a half years and the people have the same fires all the time so it's probably ok.
Just remember that if those people do use their burn barrels or burn piles, they still need to call LRAPA in order to see if burning is allowed that day. There is an exception for fires that are used for cooking. I would still call Marcola FD and ask them about the pit and it's use.