From thegovgurus.com:
Quick Tip – Sneak a Peak at a Current Fed’s Salary
You can look up the salary of any employee of a federal agency on the
“Gannett Searchable Database” of federal employee salaries at
http://php.app.com/fed_employees/search.php. (Note that salaries cited at
this site are usually one or two years behind – and so do not reflect
cost of living changes or promotions received since then.)