Unclear in Iowa

Not much is very clear about Iowa’s waste cell design and operation rules; at least, that seems to be the case in a Radio Iowa article about the current dispute over proposed rule changes–particularly in regards to liner requirements. The article author has neglected to include specifics of the dispute. What is certain is this: even landfill operators and Department of Natural Resources (DNR) representatives are in agreement that the rules are not clear. Iowa has a rule prohibiting tougher regulations than federal standards. But does this apply to old landfills that, in a way, had been grandfathered into current code under rules designed to fit them into a new regulatory scheme?