I know we have some true chemistry professionals here and it is great to be able to get in depth answers when needed. However, I thought it might also be nice to have a very basic rundown on what parameters should be tested, and why, along with the "normal" ranges for each.
That way, someone who is either brand new, or just wants the essential information will have a quick place to look.
If someone wants to put this together, I'll happily post it as a sticky reference for the rest of us. Please check your facts and your spelling.