Reduce Impervious Surfaces - Reduce Polluted Runoff

What are impervious surfaces?  Roads, driveways, parking lots, rooftops - any hard surface that rain cannot penetrate. A lawn (particularly in developments) can even be considered an impervious surface if the top soil was replaced with less pervious soil.

What is polluted runoff?  Rainwater flowing over impervious surfaces pick up many substances in its path – sediment, oil, gas, litter, pet waste, salt, herbicides and pestcides.

Where does polluted runoff go?  INTO OUR STREAMS!!  Did you know that all stormdrains empty into a stream. This is a concern for our more urban residents in Hampstead and Manchester.