New Owners of a property next to a rental...that are trashy

[Micaela N. Wolfe]

Hello! Not sure if this is the appropriate spot for this query. I have a beautiful home in the mountains of western NC which is a very successful Airbnb. We recently had a very small plot of land at the base of the drive put up for sale and purchased by someone that has since moved in with RV's and dumped their trash ALL over. They are pumping water from the nearby stream and who knows for sewer. All of the neighbors have begun to call the local health department and code enforcement etc. I am not sure that will go far except pissing them off and some fines. 

My question is other than making them an offer to buy out their property....any other ideas to get this nightmare under control? We also found out the new owners may have some scary criminal records with child abuse involved as well. HUGE issue with families with children visiting my home. This kills all of our property values and of course horrible for my guests to drive by. ANY ideas welcome.

Thank you all!

Micaela