Shipped: April 8, 2019
W191 Preliminary results
Sample Number Organism Total Colony Count (Group Means)
Membrane Filtration Method cfu/100mL
Total coliforms Thermotolerant coliforms E.coli
W191-1 E. coli 68±8.1, MU 12.1% 65±8.2, MU 12.7% 68±8.1, MU 12.1%
W191-2 Enterobacter species 61±8.8, MU 14.7%
0 0
W191-3 Enterobacter species 15±3.2, MU 22.1%
0 0
W191-4 Enterobacter species 15±3.2, MU 22.1% 0 0
MU: measure of uncertainty
H191 Preliminary results
Samples Organism Total Colony Count (Group Means)
H191-1 Enterobacter species 96±29.1, MU 30.4%
H191-2 No organisms 0
H191-3 E. coli 77±7.8, MU 10.2%
H191-4 E. coli 209±22.9, MU 11.0%
MU (%): Measurement Uncertainty in percentage outliers excluded in group means
