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2009 Lake of the Ozarks E. coli data

Sampling conducted by the Lake of the Ozarks Watershed Alliance volunteers, with help from the Missouri Department of Conservation and the Missouri Department of Natural Resources.

 

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For questions about the data, contact the Lake of the Ozarks Watershed Alliance

Most Probable Number (MPN) of bacteria found in 100 mL of water are reported.
(click pin on map to show data)

For whole body contact recreation, the geometric mean E. coli numbers should be below 126 cells/100mL. Single values should be below 235 cells/100mL.

Sites where at least one value exceeded 235 cells/100mL are shown with a dot.

High values in May followed a period of heavy rain and were most likely due to terrestrial runoff. These high values do not necessarily indicate cantamination by human sewage. Other sources include pets, livestock or wildlife; these should be addressed through stormwater management measures.

Sites with values exceeding 235 in a month other than May are shown in yellow.

(what are coliform bacteria?)

E. coli values were high across much of the sample area on May 26, following a period of heavy rainfall. June values were considerably lower. DNR Statement (June 26, 2009)


View 2009 Bacteria Sampling LOZ in a larger map

 

2008 Data - 2007 Data

LMVP/LOWA information page

DNR page concerning this study

 

 
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