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* Linear interpolation is used to calculate sediment removal efficiencies between the ISO/ETV tested surface loading rates
 
* Linear interpolation is used to calculate sediment removal efficiencies between the ISO/ETV tested surface loading rates
 
* Surface loading rates below the lowest ISO/ETV tested surface loading rate are assigned a sediment removal efficiency equal to that of the lowest tested rate
 
* Surface loading rates below the lowest ISO/ETV tested surface loading rate are assigned a sediment removal efficiency equal to that of the lowest tested rate
* Hourly historical rainfall data (minimum 20 years) are used to generate the rainfall intensity distribution curve.
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* Hourly historical rainfall data greater than 1mm for the April to October period are used to generate the rainfall intensity frequency distribution curves.
* Capacity to add historical rainfall record is provided in order to generate the relationship between hourly rainfall intensities vs average annual rainfall volume for the meteorologic station of choice.
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* Capacity to add historical rainfall record is provided in order to generate the relationship between hourly rainfall intensities vs average annual rainfall volume for the meteorological station of choice.
    
===Associated Documents Submitted with OGS Review Calculator===
 
===Associated Documents Submitted with OGS Review Calculator===

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