A company has been discharging its waste into a holding pit for a long time. For the last several years, the pit has been full and overflowing into a local river. The waste concentration has been nearly constant at 10 mg/L of the pollutant of interest. At this concentration, there have been no adverse effects on the stream. Suddenly, there is a process change and the contaminant in the waste stream goes up to 100 mg/L. Given that the waste stream flow rate is 100,000 L/day and the holding pit volume is 1.0 million liters, determine the concentration of the pit's overflow stream after 10 days.