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Kansas Real-Time Water Quality

Sodium, dissolved


Sodium is a cation that is present in nearly all natural waters, although concentrations vary. Sodium is present in nearly all rocks and soils present and is frequently a cation in natural waters. One of the more common sources of sodium in water is from the dissolution of clay and felspar minerals. Sodium concentrations of more than 30-60 milligrams per liter can impart an objectionable taste to the water. Individuals on restricted sodium diets generally should maintain drinking water intake concentrations of 20 milligrams per liter or less. Information of the sodium of water is used by water treatment managers to determine amounts of chemical to add during the treatment process.

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

USEPA drinking water equivalent level: 20 mg/L

Individuals on restricted sodium diets (less than 500 milligrams per day) generally should maintain drinking water intake concentrations of 20 milligrams per liter or less.

Source: USEPA Sodium in drinking water (view online)

Stations That Measure or Compute Continuous Sodium

Click a station to view measurements of sodium.

Station Name Station Identifier
Kansas River at Topeka, KS 06889000
Kill Creek at 95 Street near DeSoto, KS 06892360
Olathe Lake near Olathe, KS 06892450
Cedar Creek near DeSoto, KS 06892495
Mill Creek at Johnson Drive, Shawnee, KS 06892513
Blue River at Kenneth Road, Overland Park, KS 06893100
Blue R at Blue Ridge Ext in KC, MO 06893150
Indian Creek at State Line Road, Leawood, KS 06893390
Rattlesnake Creek near Zenith, KS 07142575
Little Arkansas River at Highway 50 near Halstead, KS 07143672
Little Arkansas River near Sedgwick, KS 07144100
North Fork Ninnescah River above Cheney Reservoir, KS 07144780
Cheney Reservoir near Cheney, KS 07144790

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Page Last Modified: Wed 06 October 2010