The PA DEP does their best but unfortunately they are basically a toothless agency. I worked for them in the early 2000’s. I wasn’t there are the time but was told by the older guys the when Republicans were in control of the state in the 90’s (Tom Ridge years IIRC). Any sort of fines has to go through the state attorney general. Not that that is inherently a problem but I can see a cleanup like this easy costing several million dollars and every best case scenarios 50% of oil recovery is considered a good recovery.