While driving on I95 in Balmer I noted some Maryland Midland covered hoppers re-stenciled LECH - which I assume means they were sold to Lehigh Cement ...
N&W: Did you mean to say LEHX there? LEHX is the reporting mark for Lehigh Cement. LECH is not a reporting mark for a private owner (doesn't end in X) and I don't see it in any of the lists I checked. It could be a new shortline though.
I think you're right - LEHX.