Permapave Permeable Pavers are natural stone pavers that eliminate 100% of gross pollutants from waterways. With a flow through rate of up to 1½ gallons per second per square foot, the pavers maximize land use by making previously impervious areas pervious. In addition, use of the pavers can be applied toward LEED credits. Perma-pave Industries LLC. 516-584-2110.