BubaBob,
I might be off base here but my guess is that the reported 500 tpd is coming solely from Redstone which if going by memory is a huge increase to before Redstone went into care and maintenance - at that time roughly 200 tpd.
My understanding is that once McWatters is in full production that the tonnage pulled per day will be between 1,500 - 1,800 tpd. BubaBob is this what you were referring to or something else altogether?
Happy Trails,
-B1-