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Kansas Real-Time Water Quality



Triazine herbicides, such as atrazine, are commonly applied to crops (corn and sorghum) to control the growth of weeds. These herbicides typically are applied to fields during the growing season and high concentrations in the surface water can be a result of rainfall and runoff.

Water-quality standards and criteria are developed by the States, approved by the U.S. Environmental Protection Agency (USEPA), and then promulgated (passed into law) as standards by each State. Graphs on this website allow comparison of measured and computed data to these standards and criteria by plotting them as straight lines. When evaluating data to decide whether water quality is suitable for the intended use, viewers are cautioned to consider the uncertainty associated with these computed data.

Water-quality Standards and Criteria

Kansas chronic aquatic-life criterion: 3 ug/L

3 micrograms per liter.

Source: Kansas Department of Health and the Environment (view online)

USEPA maximum contaminant level: 3 ug/L

3 micrograms per liter as an annual average.

Source: USEPA National Primary Drinking Water Regulations (view online)

Kansas acute aquatic-life criterion: 170 ug/L

170 micrograms per liter.

Source: Kansas Department of Health and the Environment (view online)

Stations That Measure or Compute Continuous Atrazine

Click a station to view measurements of atrazine.

Station Name Station Identifier
Cedar Creek at Highway 56 at Olathe, KS 06892440
Little Arkansas River at Highway 50 near Halstead, KS 07143672
Little Arkansas River near Sedgwick, KS 07144100

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Page Contact Information: National Real-Time Water Quality Information
Page Last Modified: Wed 06 October 2010