Figure 17. Streamflow and instantaneous loads of dissolved organic carbon, particulate carbon, and associated disinfection by-product formation potentials for total trihalomethanes (THM4) and total haloacetic acids (HAA5) for samples collected in the Clackamas River basin, Oregon, 2010–11. (Sites are listed in downstream order. Note log scale for y-axis in streamflow plots. X-axis labels for Summer base flow also apply to the Spring high flow and Initial autumn storm event. Loads, in kilograms per day were calculated by multiplying the concentration in mg/L by flow (x 2.447 for units conversion). Abbreviations: M, main-stem site; T, tributary; S, source-water; mg/L, milligrams per liter; CR, Clackamas River; CRW, Clackamas River Water DWTP; LO, City of Lake Oswego DWTP; DWTP, drinking-water treatment plant.)


First posted February 11, 2013