Remember the Al Qa Qaa affair? This was what those explosives were for...the Iraqi A bomb.
"...and a quantity of bomb-grade uranium."
Iraqi nuclear scientists were performing separation techniques exactly the way we did to produce the fissile material used in our bombs.
You may be more accurate than I on the amount of HE but the location is approximately 100 miles away from the site where are looking.
This information was given me 45 years ago by a person formerly in that outfit that droped the bomb and for a different reason than that being advanced recently.