"Richard Tanzer" wrote in message
...
Thanks Tom.

A measurement that combines parts per million with pounds per acre.
Sounds like something an engineer would dream up. It's still not clear
to me how it would relate to the concentration of nitrogen compounds in a
pond.

I'll admit you had me confused when you wrote "this is an Ag term." What
the heck does this have to do with silver (Ag)? Then realized that you
meant AGriculture.

What can I say ... I'm a chemist.
snip

What can I say...I was tryin' to figure out how Texas A&M factored into
this.

BV.