W181 & H181 Preliminary results

Shipped: April 9, 2018

W181 Preliminary results

Sample NumberOrganismTotal Colony Count (Group Means)
Membrane Filtration Method cfu/100mL
Total coliformsThermotolerant coliformsE.coli
W181-1Enterobacter species35±5, MU 13%00
W181-2No organisms present000
W181-3E. coli64±13, MU 20%56±11, MU 17%64±13, MU 20%
W181-4Enterobacter species18±5, MU 25%00

MU: measure of uncertainty

 

H181 Preliminary results

SamplesOrganismTotal Colony Count (Group Means)
H181-1No organisms present0
H181-2E. coli 167±19, MU 11%
H181-3E. coli 66±6, MU 8%
H181-4Enterobacter species110±11, MU 10%

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

Posted in critiques, Water Microbiology Results, WBNews