Surveying Land

Where can I learn how to use a transit level to determine grade of land and set up swales?

Taking a guess here: locally there are official surveyers that do this all the time and they have either taken courses to do so or they work as an apprentice. I imagine there is a technical school nearby or a one-time surveyer's course that does transit level training. Ask a surveyer if you can swap holding the stick for free lessons.
William

Well you could just google: leveling a transit. I found this U-tube pretty quick, http://www.youtube.com/watch?v=1Ej0K5W4Z5s gets it explained in 2.50 minutes.

james beam

I use a home-made bunyip and dream about lazer-level transits. Bunyips work well, I believe better than the A-frame, which is what you see when you look around the internets...

I was assuming you were wanting professional training for the sake of it.
http://www.harvestingrainwater.com/wp-content/uploads/2006/05/Bunyip-Water-Levels-and-A-Frame-Levels-Appendix-2.pdf

William