mmmmm, stacychloe, forgive me if I am wrong, but if you were really trying to help your best friend, I would have expected the questions to be:-
1) does she have a claim
2) what is that claim
3) who does she sue
4) what is the likely quantum
5) how to pursue that claim.
This sounds horribly like a bit of law homework dressed up to sound like a genuine problem. Generally people could not give a fiddlers about your three points. They want to know the points you have listed above.
I am always willing to help people where I can, but it is extremely difficult when people are not completely honest.
Perhaps you can answer these questions:-
1) why was your friend on the premises?
2) if employed, what training had she been given
3) was safety equipment provided
4)what training had she received in the safety equipment
5) what does the medical report say about the causative effects of there being no first aider and no eyewash on site - how have they contributed to the injury?
6) If she was not on the premises as an employee, why was she there?
7) What was she doing when the splash occured?