SUMMARY OF KEY WASTEWATER MATH FORMULAS

Two-Normal Equations: a) C 1 V 1 =C 2 V 2 b) Q 1 = Q 2 V 1 V 2 10. Three Normal equations: a) ( Q 1 C 1) + ( Q 2 C 2) = ( Q 3 C 3) b) Q 1 = Q 2 = Q 3 V 1 V 2 V 3. Hydraulic Cross- Check Formulas 1. Detention = (Volume, gals) x ( 24 Hrs./day ) ... ( Total Surface Area of the Pond, Sq.ft. ) 7. Volume, = ( Area, acres ) x ( Depth, ft. ) Acre-Ft 8 ... ................
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