I have recently begun to trend our environmental monitoring data based on the number of each organism identified as well as the previously documented overall results for a given room.  The issue I have run into is how to handle a documented result of TNTC when attempting to analyze the data for individual organisms or even for a specific EM sampling site.  I have not been able to determine the best way to show these results graphically.  I thought about selecting a number to represent TNTC (say 251 when countable range goes to 250) but I feel that will draw a lot of questions from auditors.  Any suggestions or help would be appreciated.

Kimberly Bedal
Microbiology Supervisor
Ext. 505


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