In our stormwater lesson we talk about how the impervious surfaces of our parking lots can create problems on the river. By not allowing water to filter through, these surfaces can create runoff that increases river flow. If you’re wondering if there’s an alternative, there is! Pervious surfaces, or surfaces that allow water to filter through, can be a great alternative for paved areas. There are plenty of pervious pavements available to developers, and while they can come with their own challenges they do a great job of allowing water to stay on-site. PBS Kids has created a wonderful guide for their “Water Ins and Outs” activity. If you’re looking for a first hand way to observe the differences between pervious and impervious surfaces this is a great activity to do! | |