Question: As a member of Engineers Without Borders, you are working in a community that has contaminated drinking water. At t = 0, you add a

As a member of Engineers Without Borders, you are working in a community that has contaminated drinking water. At t = 0, you add a disinfectant to a cistern that is contaminated with bacteria. You make the following measurements at several times thereafter:

If the water is safe to drink when the concentration falls below 5 #/100 mL, estimate the time at which the concentration will fall below this limit.

10 16 2 4 6 430 190 80 35 c (#/100 ml) 1

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