Also, there are indirect subsidies like depressed property values around coal-oriented rail lines, dust blowing from open rail cars and coal piles into the lungs of nearby residents causing increased asthma rates: https://www.motherjones.com/environment/2017/10/this-huge-ra...
Very few people actually work in these highly-mechanized and automated facilities. Eliminating coal terminals in city limits would easily pay for itself in increased tax revenue from businesses and housing in currently uninhabitable areas surrounding these dusty coal terminals.
EDIT: based on the fact that asthma rates are about double in the areas surrounding the terminal and that (based on state-level statistics) there are about 10,000 asthmatics in Newport News with about a tenth of the population of the city living near the coal terminals, that means there are probably on the order of 500 more asthmatics in the area than there would be without the coal terminals. From what I can tell, there are fewer than 500 people actually employed in the two Newport News coal terminals, so we're talking at least one additional case of asthma for every job in the coal terminals.
EDIT AGAIN: Ex-Im loan guarantees also go to coal export facilities: https://chesapeakeclimate.org/blog/lawsuit-seeks-to-stop-fed...