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<br>
 
The following methods and processes are built into the tool:<br>
 
The following methods and processes are built into the tool:<br>
'''Rational Method''' used as a basis for flow calculations:<br>
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*'''Rational Method''' used as a basis for flow calculations:<br>
*<math>Q = CiA</math>
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**<math>C</math> is the site runoff coefficient,
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**<math>i</math> is the rainfall intensity, and;
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**<math>A</math> is the drainage area)
   
* Target treatment is based on capture and treatment of the average annual runoff volume for the site using ISO 14034 verified sediment removal test results for 7 surface loading rates
 
* Target treatment is based on capture and treatment of the average annual runoff volume for the site using ISO 14034 verified sediment removal test results for 7 surface loading rates
 
* 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

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