W211 Final Results

W211 Drinking Water – Final Results – Survey Shipped: April 12, 2021

W211 Final results(PDF)


ChallengeIndividual Challenges and Water Methodology Charts (pdf)
W211-1: E. coli MPNMFESPA - All
W211-2: Enterobacter speciesMPNMFES
W211-3: No organismsMPNMFES
W211-4: E. coli MPNMFES
Method and Analysis Time (hs) ChartsMPN TimeMF TimeES TimePA Time

MPN: most probable number; MF: membrane filtration; ES: enzyme substrate; PA: presence/absence



Posted in critiques, Water Microbiology Results