Fig. 4From: Comparison of coliform contamination in non-municipal waters consumed by the Mennonite versus the non-Mennonite rural populationsQuanti-Trays for calculating most probable numbers of total coliforms and E. coli [21, 24]. A table or software is used to calculate the Most Probable Number of total coliforms and E. coli in Quanti-Trays (or Quanti-Tray/2000) with changed colors (color figure online)Back to article page