National Stormwater Calculator

National Stormwater Calculator

Tree Box Stormwater Filter

The United State Environmental Protection Agency (EPA) has released a new Stormwater Calculator for download to your PC. The desktop application estimates the annual amount of rainwater and frequency of runoff from a specific site anywhere in the United States. Estimates are based on local soil conditions, land cover, and historic rainfall records. It is designed to be used by anyone interested in reducing runoff from a property, including site developers, landscape architects, urban planners, and homeowners. The Calculator accesses several national databases that provide soil, topography, rainfall, and evaporation information for the chosen site. The user supplies information about the site’s land cover and selects the types of low impact development (LID) controls they would like to use.

The National Stormwater Calculator can be used with all versions of Microsoft Windows with .Net Framework 4 and requires an Internet connection to run. Click here for more information and to download it.

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