The consequences of Hurricane Harvey go on and on. Even under the “best” of circumstances the flooding caused by the days of torrential rain would be hazardous as the toxic fluids from automobiles, gas stations, businesses, and household chemicals mix with flooded sewers and sewage treatment facilities. In other words, flooding around any modern town or city is going to result in a toxic stew. However, this region of Texas is far more than a modern city (or collection of cities). It is the petrochemical capital of the United States, as well as having significant numbers of chemical production facilities.