Figure 31. September 2011 data showing (A) concentrations of total particulate carbon and trihalomethane formation potential for unfiltered samples in the Clackamas River at the beginning and near the peak of the Timothy Lake drawdown, (B) time series of streamflow and chlorophyll-a, (C) daily median values of streamflow and chlorophyll-a, and (D) daily median turbidity and chlorophyll-a in the lower main-stem Clackamas River at Oregon City.


First posted February 11, 2013