A truck accidentally discharges 100 m3 of pesticide into the river stream. The river flow and velocity into the pond are 0.1 m3 /s and 0.15 m/s, respectively. The pond has a liquid volume of 50000 m3 . The distance from the spill site to the pond is 10 km. Assume that the pesticide spill as a pulse input and the pond behaves as flow balanced CMFR. Estimate the time for the pulse to reach the pond and the time it will take to flush 99.9% of the pesticide from the pond. Report the time in days