Water quality. Detection and enumeration of intestinal enterococci in surface and waste water. Miniaturized method (Most probable number) for surface and waste water|Water, Quality, Water testing, Biological analysis and testing, Microbiological analysis, Enterobacteriaceae, Bacteria count methods, Surface water, Sewage, Count methods (microbiology), Culture techniques, Specimen preparation, Testing conditions, Dilution, Statistical methods of analysis, Computer software, Computer programs, Performance, Quality control, Test equipment, Salts