This Excel spreadsheet workbook calculates the saturation dissolved oxygen concentration in water at user specifed water temperature and atmospheric pressure for water temperature ranging from 35 to 80 degrees F and atmospheric pressure from 600 to 760 mm Hg.  Calculations are in U.S. units.

This Excel spreadsheet workbook calculates the saturation dissolved oxygen concentration in water at user specified water temperature and atmospheric pressure for water temperature from 0 to 40 degrees C and atmospheric pressure from 600 to 760 mm Hg.  Calculations are in S.I. units.

 These Excel spreadsheets will make dissolved oxygen sag equation calculations, including calculation of the reaeration rate constant, the deoxygenation rate constant, the critical DO and the downstream distance to the critical DO location, the dissolved oxygen concentration at a given distance downstream from a wastewater discharge point, and a plot of the DO sag curve.  These calculations are all in S.I. units.

 These Excel spreadsheets will make dissolved oxygen sag equation calculations, including calculation of the reaeration rate constant, the deoxygenation rate constant, the critical DO and the downstream distance to the critical DO location, the dissolved oxygen concentration at a given distance downstream from a wastewater discharge point, and a plot of the DO sag curve.  These calculations are all in U.S. units.