While the consequences from Harvey were sensational, and that was all that was on the news for a week or more, it is horrific to live with the fall out. The flood waters were everywhere. That being said the flood water from my area could be from rain or river. Water from areas anywhere near a refinery or oil storage is a whole other story. So, the area and the kind of junk in it is worth considering. I'd guess dawn would be added if oils were present. The medical center got hit hard, and that's a different beast.