Wastewater Math


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Common Conversion Factors

To Convert
To
Multiply By
Inches
Feet
0.08333
Inches
Yard
0.02777
Feet
Inches
12
Feet
Yards
0.33333
Yards
Inches
36
Yards
Feet
3
Acres
Square feet
43,560
Days
Hours
24
Days
Minutes
1,440
Days
Seconds
86,400
Liters
Gallons
0.264
Liters/second
Gallons/minute
15.85
Meter
Feet
3.28
Kilogram
Pounds
2.20
Cubic meter
Gallons
264
Million Gallons/day
Gallons/day
1,000,000
                                                             
                                                 
  1. 7.48 gallons per cubic foot and vice versa.

  2. 62.4 pounds per cubic foot and vice versa.

  3. 8.34 pounds per gallon and vice versa.

  4. Permeability is normally shown by the Health Department to be =

        Ex.:  2 inches in 60 minutes gives permeability of 30.