These are goldfish and am pretty sure they are illegal. Don't want to see anyone get into trouble. If they get into wild water systems they can cause problems I guess.

I second what Mike says. I have to have a permit to stock my private pond, no inlet or outlet, with a native species. Illegal fish could be a big problem.

they are definitely illegal. I get several calls a year about nuisance otter cleaning out peoples fish ponds, but come to find out they fish were koi or similar to begin with. I just tell them that "nuisance" just kept them out of a ALOT of trouble.
the biologists i work closely with are very interested in finding out about these ponds so they can make a visit.