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A little of both, not my paid job, but on private property only used by a select few so the responsibility (and cost) falls to me. So while voluntary, certainly self-serving and not done out of some larger service to the public or anything, but good thought.
I was able to help out a neighbor by buying his extra unused culvert pipe from his farm use though, so maybe that counts.

Well, only a few a doing it nowadays. Good job there 😊