Dewey, it really doesn't sound like a meth lab. I will agree about the smell. I've done ride alongs with the local police and watched 2 raids for meth labs. They really do smell.

It might be a "distribution center" for various drugs. Usually, people who have a location where they make drugs do not want hundreds of people visiting it. They like to keep them as secret as possible.

3 things you might want to try (and please try some of the reasonable idea above)

Contact the local high school and tell them you believe you've seen high school kids coming and going. It doesn't matter if your really have, all that much. But they might look into it.

Contact the local TV stateions - One of them is bound to have a "problem solver" segment with a rabid reporter. They like to point out who bad things are, how the little guy is getting the shaft, and how poorly local government is doing it's work.

Contact you local city or county representative. Tell them you vote and would like to see this investigated.