That is all fine and consistent.  But the question remains, what is the procedure when the re-assay does not agree with the original assay? 

It sounded to me like this had been ongoing, at least more than once: "They keep coming back with different values"  ------clearly in the plural.  So I said to Wagner, if you run out of core you might have to twin the holes in question.  But he said it had not come to that yet.