Is that masonry? If so, definitely not termites. Termites usually leave mud tubes (subterranean) or little 6 sided pellets/frass that look like saw dust but not as fine as sawdust (drywood termites). If you look closely at drywood pellets you can see the indentations. Also, just a fyi, you can’t determine the age of an infestation based on the color of the droppings, if you’ve ever heard that, it’s a myth. The pellets are their poop and are whatever color of the wood they ate. Short of seeing a live termite, there’s no way to tell if what your looking at is old or new damage. I used to be a licensed termite inspector here in California.