Any Pond/lake Owners Here?

HI,just wondering who all has there own fishing hole and tips on how to manage it,like granting permission,stocking,keeping out the undesirable partying types etc etc.

We currently have about a 40 acre parcel with a 18 acre borrow pit that was dug some fifty years back.Spring fed,dug in steps and depths range from 30 ish at it's deepest to a section of about 3-5 ft.All in all it's a pretty healthy eco system and holds some nice fish for the area.

Years ago we used to just turn a blind eye and let people fish it but sadly those days are long gone.I just got tired of cleaning up all the trash that would get dumped.It took about 5 years of patrolling it with a 12 gauge and blocking the access road to do it but traffic has been cut down to the occasional straggler (most are too lazy to walk back there)and dumping issue pretty much been resolved.

Ideally I'd like to open it up to responsible types that would be willing to help keep it clean,without opening myself up to a massive liability.Possibly some sort of club etc.I just hate having to say sorry bud but thanks to the dirt bags you too have to go,if you know what I mean.

anyway thanks