Number of RT Negatives

Number of RT Negatives indicates how many of the routine (RT) samples collected during the specific monitoring period were negative. Negative means that no Total Colifom organisms were identified in the sample. If all the samples collected during a specific monitoring period were negative, that indicates that the water is considered safe relative to microbiological contamination (like bacteria and viruses). To know whether all the samples collected during a monitoring period were negative, look on this page and at individual sample results (click on the link for TCR Sample Results in the menu bar on the left) because positive samples are not indicated in a summary. Only negative routine samples are indicated in a summary.