Pervious pavers, like those pictured, help prevent water from collecting on walkways, and instead, filter into the soil and return to subsurface water sources. James Herrin (left) and Jeffrey Dean who's wearing a hat, smile as they help roll out the ribbon ahead of the ribbon-cutting ceremony. With more than 1.1 million residents, Fulton is the most populous county in the state, where green stormwater practices are critical. A close up image of a green roof display shows various types of plants in a rooftop replica. Green roofs, like this one donated by Horizon Roofscapes, act like sponges, capturing massive amounts of rainwater and reducing runoff into city sewers.