1. A leaking tank drips 1,1,1-trichloroethane (1,1,1-TCA) into a small stream at a rate of 10mg/min. Stream discharge is 10 liter /min. a. What is the maximum concentration of 1,1,1TCA in water downstream of the tank? [Hint: maximum concentration occurs before any sink process (e.g., volatilization, sorption, degradation) starts.] [5 points ] b. Is 1,1,1-TCA a DNAPL or LNAPL? [Hint: use Table 1-3 available on Blackboard -> Folder "Chemical Distribution Among Phases"] [5 points ] c. Does the released amount of 1,1,1-TCA accumulate on the stream bottom? Why? [Hint: compare solubility to maximum concentration.] [5 points ] d. If the tank drips benzene at the same rate. Does the released amount of benzene accumulate on the stream bottom? Why? [Hint: reconsider step a-c for benzene] [15 points ]