When providing an evaluation on dates that have already been run, it will automatically result in a finding of new use no matter what the levels show. The lab does recommend providing new dates to have an evaluation performed to accurately reflect whether the results show new or residual use.
Was this article helpful?
That’s Great!
Thank you for your feedback
Sorry! We couldn't be helpful
Thank you for your feedback
Feedback sent
We appreciate your effort and will try to fix the article