USGS - science for a changing world

Kansas Real-Time Water Quality

Acid neutralizing capability (alkalinity, unfiltered)


Acid neutralizing capability is defined as the measurement of the alkalinity of a water sample that has not been filtered. Alkalinity of water is defined as the capacity for solutes in the water to react with and neutralize acid. Sources of alkalinity include limestone and decomposition of organic matter. Alkalinity is important in determining a stream’s ability to neutralize acidic pollution from rainfall or wastewater. The pH levels in low-alkalinity streams can decrease to a point that eliminates acid-intolerant forms of aquatic life. Fish are particularly affected by low pH water. Alkalinity information is used by water treatment managers to determine amounts of chemicals to add during the treatment process.

Stations That Measure or Compute Continuous Acid neutralizing capability

Click a station to view measurements of acid neutralizing capability.

Station Name Station Identifier
Kansas River at Topeka, KS 06889000
Blue River at Kenneth Road, Overland Park, KS 06893100
Blue R at Blue Ridge Ext in KC, MO 06893150

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: National Real-Time Water Quality Information
Page Last Modified: Wed 06 October 2010