Yes, SITUATING is a Scrabble word!

Letter values in Scrabble US: S 1, I 1, T 1, U 1, A 1, T 1, I 1, N 1, G 2.

Is it a valid word?

SITUATING is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

determine or indicate the place, site, or limits of, as if by an instrument or by a survey
put (something somewhere) firmly