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Add LA County Modified Rational Method Functionality

It would be beneficial to have the ability to generate hydrographs using LA County's Modified Rational Method, similar to XP-SWMM. This would allow consultants to use ICM on LA County projects.

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    • Robert Dickinson
      Apr 17, 2025

      Hello Andrew, I remember from xpswmm days that there were a lot of South California methods. Do you have a link to the current version you think is the best? https://dpw.lacounty.gov/wrd/publication/engineering/2006_Hydrology_Manual/2006%20Hydrology%20Manual-Divided.pdf