STANDARD QUALITATIVE ANALYSIS OF WATER

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1

What the primary source of water pollution?

Fecal contamination

2

What are coliforms?

Bacteria that are common inhabitants of the GI tract.

3

Are the presence of coliforms in water itself dangerous?

No, but their presence does indicate the water is contaminated with fecal matter.

4

This presumptive test contains?

lactose, a pH indicator, peptones, and a Durham tube

5

The purpose of this technique is to estimate the concentration of coliforms in a water sample?

Most Probable Number Method

6

Multiple Tube Technique uses how many tubes?

Three of each concentration. 1mL*3, 10mL*3, and 0.1mL*3