W191 & H191 Preliminary Results

Shipped: April 8, 2019

W191 Preliminary results

Sample NumberOrganismTotal Colony Count (Group Means)
Membrane Filtration Method cfu/100mL
Total coliformsThermotolerant coliformsE.coli
W191-1E. coli68±8.1, MU 12.1%65±8.2, MU 12.7%68±8.1, MU 12.1%
W191-2Enterobacter species61±8.8, MU 14.7%
00
W191-3Enterobacter species15±3.2, MU 22.1%
00
W191-4Enterobacter species15±3.2, MU 22.1%00

MU: measure of uncertainty

H191 Preliminary results

SamplesOrganismTotal Colony Count (Group Means)
H191-1Enterobacter species96±29.1, MU 30.4%
H191-2No organisms0
H191-3E. coli 77±7.8, MU 10.2%
H191-4E. coli 209±22.9, MU 11.0%

MU (%): Measurement Uncertainty in percentage outliers excluded in group means

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