Scientific Investigations Report 2013–5001
![]() Figure 4. Historical trends (1982–2011) in disinfection by-product concentrations in finished drinking water from the Clackamas River Water and City of Lake Oswego direct-filtration treatment plants, Clackamas River basin, Oregon. (A) Total trihalomethanes (THM4). (B) Total trihalomethanes (THM4) with y-axis rescaled. (C) Total haloacetic acids (HAA5). |
First posted February 11, 2013 For additional information contact: Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge. |