“The use of permeable pavers has gone rampant,” says David Hein, an engineer with Applied Research Associates in Toronto, Canada. “It’s driven by the stormwater people. There’s been a major effort to deal with stormwater at the source.”
...The cost of laying permeable pavers is somewhere between the cost of laying asphalt and concrete, but because stormwater infiltrates between them and is detained between the stones underneath, pavers are ultimately less expensive than asphalt because there’s less need for storm drains, pipes, detention ponds, or other stormwater infrastructure. In addition, they don’t have the attendant problems of flooding, groundwater depletion, and downstream water erosion and pollution.
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