Quote Originally Posted by xld
I am confused by the values with < in them, as these do not tell you what the value is. For instance, if the Cd said <.7, does that fail the .69 criteria or not?

Bob, sorry about the confusion.

Our instrumentation is calibrated with 0.1 ppm standards, so if a reading on an element is less than our standard, we report it as < 0.1. Any reading greater than 0.1 will be reported as such.

In other words, anything less than 0.7 will meet the criteria, but it wouldn't be listed as < 0.7. It would be listed as the actual number (e.g., 0.65, 0.21, etc.).