Why not build a sewage treatment plant on a karst floodplain?
Any floodplain is subject to repeat flooding—which will undermine structures built upon it. Federal law disallows building major projects on floodplains because of prohibitive repair and insurance costs. Any proposal to build a floodwall around the plant would be futile, because flood water would come upward through sinkholes—inside the floodwall. Ground instability plus flooding equal high risk. $20 million of taxpayer money is too much to risk on a bad site.
