Additional Homework Problems

CDP12-H_B

On August 19,1973, a barge on the Mississippi River was damaged, spilling 140,000 gal of chloroform into the river. The following data were taken at a point 16.3 miles downstream from the spill

Properties of the Mississippi River (averages):

Volumetric Flow = 268,000 ft³/s
Velocity = 1.26 mph
Width = 4000 ft
Depth = 36.3 ft

1. What is the mean time a molecule spends traveling between the spill and the concentration monitoring site? (Ans: 216 h)
   
   
2. Based on the flow rate, what is the shortest time until you would expect detection downstream?
   
   
3. [Part (c) is a D-level problem] Develop a model that fits the data. Evaluate the model parameters.

[3rd Ed. P14-10]