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Water Quality Index. Fecal coliform measurements: Membrane Filtration Measures both Total Coliform and E. coli Multiple-Tube Fermentation Most Probable Number (MPN). MPN (Most Probable Number). This technique uses the Principle of Dilution to Extinction. BOD.
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Water Quality Index • Fecal coliform measurements: • Membrane Filtration • Measures both Total Coliform and E. coli • Multiple-Tube Fermentation • Most Probable Number (MPN)
MPN (Most Probable Number) • This technique uses the Principle of Dilution to Extinction