Government agencies have a tendancy to be incentivized to pick on small guys who are easier/simpler to harass. The beurocrat gets the same amount of credit for closing a small case as closing a lrage complicated case. For example this article cites the forest service reviewing water permits for a couple of small cabins and requiring them to install tanks at a substantial cost instead of going after Nestle who is pumping 10's of millions of gallons a year.
