Well, I have the answer, they loosened the rules for Fracking chemicals:
Environmentalists say they are suspicious that DEP has increased the levels of benzene, which is found in the wastewater of oil and gas hydraulic fracturing operations, in an effort to pave the way for fracking in Florida.
DEP officials, however, said that the science of benzene has changed in recent years resulting in the higher limits.
Also voting against the proposal was Commissioner Joe Joyce of Gainesville, who represents agricultural interests on the commission. He also raised questions about the unexplained rise in benzene levels and asked Bartlett if there was “any correlation between this rule and benzene and fracking?”
“We don’t see a connection between this rule and fracking,” Bartlett responded. The the audience jeered.
So the other changes were just a cover for the FRACKING CHEMICAL BENZENE. Expect Fracking in our Sunshine State.