Figure 14. 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 variable Y-axis scales. X-axis labels for Summer base flow also apply to the Spring high flow and Initial autumn storm event. Abbreviations: M, main-stem site; T, tributary; S, source-water; mg/L, milligram per liter; CR, Clackamas River; CRW, Clackamas River Water DWTP; LO, City of Lake Oswego DWTP; DWTP, drinking-water treatment plant; C.G., campground.)


First posted February 11, 2013