W171 & H171 Preliminary results

Shipped: 03 April, 2017

W171 Preliminary results

Sample NumberOrganismTotal Colony Count (Group Means)
Membrane Filtration Method cfu/100mL
Total coliformsThermotolerant coliformsE.coli
W171-1Blank000
W171-2E. coli50±4, MU 8%51±9, MU 18%50±4, MU 8%
W171-3E. coli13±4, MU 28%16±5, MU 29%13±4, MU 28%
W171-4Enterobacter species43±9, MU 20%00

MU: measure of uncertainty

H171 Preliminary results

SamplesOrganismTotal Colony Count (Group Means)
H171-1Enterobacter species
50±9, MU 18%
H171-2Enterobacter species114±21, MU 18%
H171-3E. coli 99±18, MU 18%
H171-4Blank0

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

Posted in Water Microbiology Results, WBNews