A 100 Ml Sample of Water Is ?Ltered Through a Sterile

Multiple Choice

A 100 ml sample of water is ?ltered through a sterile membrane, and the membrane is transferred to a plate of m-Endo agar. Following overnight incubation at 37°C, 57 green metallic colonies appear. The coliform count is _______.

A) acceptable for drinking water and recreational use
B) acceptable for recreational use but too high for drinking water
C) too high for both drinking water and recreational use