Re: Confusion Regarding "Surrogate Standard"
Posted: Fri May 01, 2015 7:38 pm
James, that is still being debated among the program people. Thus the definition of LLOQ in SW-846, minimum level in Drinking Water and another attempt at MDL for Wastewater.
Wednesday I was in a meeting with EPA and state people and the term surrogate was used both ways in the same discussion, depending on whether they were chemists or microbiologists.
CLP still uses "system monitoring compounds".
As far as how little you can reliably see in a sample, good luck with that.
The closest I would get to that would be to spike every sample at the reporting limit. Certainly not practical for current technology unless your number of samples is very limited.
Wednesday I was in a meeting with EPA and state people and the term surrogate was used both ways in the same discussion, depending on whether they were chemists or microbiologists.
CLP still uses "system monitoring compounds".
As far as how little you can reliably see in a sample, good luck with that.
The closest I would get to that would be to spike every sample at the reporting limit. Certainly not practical for current technology unless your number of samples is very limited.