Charges for Illegal Dumping

My question involves criminal law for the state of: Pennsylvania, I am asking for advise on illegal dumping. My x that owned a construction company dumped and burried material on my then property We both owned the house . I signed off on it over 2 years ago but feel that I am going to be held liable for his actions. I never gave him the athority to dump the material and he took it upon himself to rent the equipment and person to do the job. This is a huge offence . I am worried that I will be held liable for his actions. What should i do to protect myself when the DEP investigates and then finds the thousands of pounds of garbage ?

You well could be held liable. You did know about it after all.

Other can go dig it all up and dispose of it properly (and very quietly) I can't think of a thing you can do to protect yourself. Prayer is a option I guess.