The wetlands are modeled as a PFR.  The student must first develop the necessary reactor design equation for a PFR, then start collecting data.  This concentration data (which includes experimental error) is then analyzed in various ways (polynomial fit of the data followed by differentiation of the resulting equation, difference equations, etc.) to determine the rate law, as well as the rate constants and reaction order.  Students must determine which points are to be excluded from the analysis (if any) and which points may be resampled: 

The student then analyzes this information and submits a memo with the requested parameters: 

 

This information is reviewed by the boss, who evaluates the parameter values and makes recommendations.