Problem 4. A small community with a population of 25,200 is seeking your services as a consulting environmental engineer. They have tested their drinking water supply for coliform organisms by the fermentation tube method (five 10 ml portions per sample). They have come up with the following tabulated results for their April 2023 samples: No. of Samples 1 1 2 0 3 24 No. of + portions 5 4 3 2 1 0 No. of - portions 0 1 2 3 4 5 a. What is the calculated monthly average MPN? b. Just by looking at the calculated MPN can you comment on the safety of the drinking water of your client? -coliforms/100 ml.

Problem 4. A small community with a population of 25,200 is seeking your services as a consulting environmental engineer. They have tested their drinking water supply for coliform organisms by the fermentation tube method (five 10 ml portions per sample). They have come up with the following tabulated results for their April 2023 samples: No. of Samples 1 1 2 0 3 24 No. of + portions 5 4 3 2 1 0 No. of - portions 0 1 2 3 4 5 a. What is the calculated monthly average MPN? b. Just by looking at the calculated MPN can you comment on the safety of the drinking water of your client? -coliforms/100 ml.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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