I was getting my numbers from job offers I get and see. It depends a lot on what part of the country the job is in, also.
Those look very high to me. They might be in line with an engineering manager or PE with 15+ yrs experience. Or maybe a position in LA, SF, NYC, etc. Those numbers could also include all the benefits, which would raise the salary number by ~15% for most companies I've dealt with.
Oddly enough, that site is quite a bit low for my line of work. LINK