W193 Drinking Water – Final Results – Survey Shipped: October 28, 2019
W193 Final results(PDF)
Challenge Individual Challenges and Water Methodology Charts (pdf)
W193-1: no organisms present MPN MF ES PA - All
W193-2: Enterobacter species MPN MF ES
W193-3: E. coli MPN MF ES
W193-4: E. coli MPN MF ES
Method and Analysis Time (hs) Charts MPN Time MF Time ES Time
MPN: most probable number; MF: membrane filtration; ES: enzyme substrate; PA: presence/absence
