It was at Northeast last year. It should be in District One this year...correct me if I'm wrong. 2010 at Coatesville (Archbishop Wood vs. Strath Haven; 2012 at PW (ABW vs. Interboro).
PIAA web site says @ NE High at 7pm. I assume Friday but doesn't give the day.
Looks like the PIAA has gone to a 2 year rotation for districts hosting games. D12 in on the top half of the bracket, which means they will host the game.