Stormwater Footprint calculator – “What’s Your P?”

You can now determine your property’s stormwater footprint by using the online pollutant load calculator that can be found under the “Resources” tab on the Gateway.

Adapted from the NH Department of Environmental Services’ “NH Residential Loading Model”, the “What’s Your P?” calculator allows a homeowner to determine their current stormwater footprint, the potential reductions in pollutant load from the installation of stormwater treatment practices, or the potential impact from construction activities such as the addition of a garage.

The “What’s Your P?” calculator is a great tool to use in combination with the ‘New Hampshire Homeowner’s Guide to Stormwater Management’ – featuring do-it- yourself stormwater solutions for the home.




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