Skip to main content
. Author manuscript; available in PMC: 2018 Aug 18.
Published in final edited form as: Ann Glob Health. 2014 Nov 25;80(4):332–344. doi: 10.1016/j.aogh.2014.09.007

Figure 3.

Figure 3.

Levels of Escherichia coli in the Milwaukee estuary, which discharges to Lake Michigan, 2001–2007, during base flow (n46); following rain events with no CSO (n70); and following CSO events (n54). Boxes indicate 75% of values, with median values drawn in each. Whiskers are 95% of value and outliers are shown as closed circles. There were significant differences in E coli levels following rainfall and CSOs compared with base flow (P ≤ .05).5 Abbreviations: CFU, colony-forming units; CSO, combined sewer overflow.