It really depends on your abilities in chemistry and water analysis. Check out this thread that I started...https://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=508352&page=1
The very first post is where I have collected a lot of "pond water" info and it will save you plenty of time in research. Feel free to PM me if you find other good info and I will post it there for safe keeping. The remainder of the thread is just an area I used to document my pond and the first year I owned the test kits. I am sure I learned something in the process, but not enough to assist anyone in water analysis...my patience for chemistry is lacking. lol. I think someone like myself could determine if the water in question is unsuitable for a pond with the basic kits that I afforded, but some of the kits (like the API Pond Master Test Kit) has a loose resolution and does not lend itself to very fine detail. It is a good beginners kit and will certainly tell you if the water is decent or not.