Hmmm, when I first watched the final episode I thought that the canisters were dumped in the right place, but there wasn't anyone there anymore to collect them and read them. Maybe the so called "headquarters" got blown up or it was a "mobile" station. I didn't think that either station were just for psychological experiment...
But if you really look it, there were LOTS of cannisters, years worth of them, so it's possible that the notebooks served no purpose, as the station #2 had no purpose either.