What does "OK" mean for you? There are too many variables to answer this question with great accuracy (how fast does the school process, how far are you from Newtown, are a bunch of other people sending at the same time, etc).
I had a metric assload of transcripts to send in. I started towards the beginning of July after the holiday and those transcripts were processed by LSAC within 2 weeks. Other transcripts took until the end of July. So, for me, 2-3(ish) weeks for all transcripts to be received and processed. I acknowledge this was probably a bit quicker since a lot of people haven't sent their transcripts yet and LSAC does get a rush once people are back at school. It will probably take around a month at the longest, I'd guesstimate.