I really appreciate everyones responses. Seems like the more I learn about the pond (and most things in life), the more I realize that there is so much more that I don't know.

Based on the information in the link that ewest provided, it doesn't seem that any of the values of the specific elements are anything to be concerned about.

I'm also hearing both of you clearly that pH and Alkalinity are what I should focus on. I'll begin monitoring those with a pool test kit.

Thanks again to each of you for taking time to respond.