Des Moines River Water Quality Network:

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• Miscellaneous calculations
  

• Degree conversion
  note: equivalent change change in C x 1.8 = change in F
  
  Enter a number in either temperature field, then click outside it's box.

  Temperature in degree F:
  Temperature in degree C:
  

• Convert Total P to Total PO4
  Note: Total P (mg/l as P) x 3.065 = Total PO4
  At wt of P=30.97; of O=15.99
  [TPO4] = [TP] (94.93/30.97)

  Enter a concentration, mg/l as Total P, then depress calculate button.
  Enter Concentration as Total P :
  

  
  Resultant concentration as TPO4:

• Convert Total PO4 to Total P
  Note: Total PO4 (mg/l as PO4) x 0.3262 = Total P
  At wt of P=30.97; of O=15.99
  [TPO4] = [TP] (94.93/30.97)

  Enter a concentration, mg/l as Total PO4, then depress calculate button.
  Enter Concentration as Total PO4 :
  

  
  Resultant concentration as TP:

• Calculate Loading
  Note: mg/l x ft3/s x 2.446 = kg/day; kg/day x 2.205 = lbs/day;
  2,000 lbs = one ton

  Enter a concentration, in mg/l and river flow, in cfs, then depress calculate button(s).
  Enter Parameter Concentration:
  Enter Flow:

  
  Resultant Loading in kg/day:

  
  Resultant Loading in lbs/day:

Webmaster: Donna S. Lutz