City roads, sidewalks, and lots paved over with impervious surfaces like concrete and asphalt are great for optimizing travel by foot, bikes, or cars. But these man-made surfaces come at a price: they do not allow storm water runoff to penetrate back into the soil and into aquifers, redirecting water flow directly into city storm drains, and in the process carrying pollutants out to the ocean. Impervious surfaces combined with pollutants hinder the hydrologic water cycle, reducing the amount of water that percolates through the soil to recharge groundwater supplies essential to our ecosystem, especially in times of drought.
There are various ways to integrate and reduce impervious surface areas within your own landscapes to help water back into the natural water cycle:
Permeable Interlocking Pavers: Unit pavers with aggregated fill gaps in between the interlocking pavers.
Pervious Concrete Systems/Grasscrete: Cast-in-place pervious concrete paving that is rated for fire truck loading access
Concrete Unit Pavers with Aggregate Filled Gaps
Ceramic Pervious Pavers: Pervious Pavers by KloroStone allows water to absorb and seep through the pavers itself, but keeping the solids such as debris, and sand to remain on the surface of the pavers.
All of these material solutions can help resurface our city’s infrastructure to operate more like a giant sponge rather than a water wasteful aqueduct, allowing water to be used more efficiently, and reenter the land’s own natural lifecycle rather than be washed out to the ocean.