Very costly solutions no doubt.
I think that other posters may be correct. There are places in Ventura county closer to the farms that would suit him just as well.
He got an interest free loan and installed the only approved device (I wonder whose brother-in-law made it). It wasn't tested for food service and shut down in days due to grease clogging it.
They were nice enough to let him shut it by-pass it but he still had to repay the loan.