By Youssef El-Gharabli

&Annna Steinberg

Coliform Bacteria Testing

What Is Coliform?

Coliform Bacteria

• It is the commonly-used bacterial indicator of sanitary quality of foods and water. They are defined as rod-shaped Gram-negative non-spore forming organisms.

One of the things that come up often when testing is E. Coli

E. Coli or Fecal Coliform = 2 Colonies

Colonies per mL (CFU/mL) Water quality index 91

Total Coliform Colonies= 7 Colonies

per mL (CFU/mL)

Data for Coliform Colonies Testing

The indicator for water stands with maximum allowable counts is 200 FC (fecal coliforms) per 100 mL.

E. Coli

It gets into the river from… Untreated sewage Dumping Animals Droppings

All in all unclean water

How Does Bacteria Get in to Water?

Above: Our Coliform Test

Below: E Coli Bacteria

Pictures of E Coli and Testing

Above: Another E Coli Bacteria