Germs coliform is a large and heterogeneous multitude of germs rod-shaped gram-negative, which is within certain limits similar to Escherichia coli. Coliform bacteria are bacteria good indicator about the presence of fecal contamination (Lawrie, 1985). Based on its origin, coli bacteria group was divided into two groups, namely:
- Fecal coli-like Escherichia Escherichia really originated from human feces and animal feces.
- Non-fecal coli, such as Aerobacter and Klebsiella are not derived from human feces, but may come from other sources (Fardiaz, 1989).
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